<bean>
typically you would create a getter and a setter.
<bean>
or there is some built in language magic for that, too ;)
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<bean>
(attr_accessor)
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<peteyg>
What's Ruby 1.8.7's alternative/equivalent to URI::encode_www_form?
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<amh345>
bean: amh345, you just want them returned when you call Test2.method2? < yeah basically. the idea here is i have a cron that triggers a method that triggers another class method which uploads the file. but i'd like to get some information on that file passed back. like size etc etc.
<amh345>
so i'd like to send back some information to Class1 method1 containing file size and file name /etc
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<bean>
you'd probably just want some instance variables, and make them accessible with attr_accessible.
<bean>
thats the more object oriented way of doing it
<amh345>
ok. so i'd have attr_accessible :file_size and then @file_size = file.size in the second class method. but how to i call that file_size from class1? it is as simple as Class2.file_size?
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<rhys>
sysadmin learning to code. I need to make 5 of a bunch of stuff, 5 user hashes, 5 methods, 5 function calls. is there an accepted way i should google to do such things?
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<rhys>
listing them works for me, but i'm curious if theres a good convention on doing it. use a range.each do blah end ?
<bean>
amh345, I wouldn't use a class method for that, i'd use an instance method. So if you have a class that is MyFile, it'd have instance attr_accessible :file_size, and then in the initialize you'd set @file_size = file.size
<bean>
and then for each file you'd make, file = MyFile.new(size)
<bean>
rhys, 5.times do |my_number| something my_number end
<waxjar>
times takes a block without arguments
<amh345>
bean, ok i think i get it. not 100% certain on file.file_size (i can't call that from Class1, i dont believe). but you've given me more than enough info! much appreciated.
<waxjar>
1..5.each { |x| a }
<bean>
waxjar, touche, I forgot about that
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<bean>
amh345, one sec, i'll draw you up a thing here quick.
<rhys>
bean, thought so. thanks.
<waxjar>
well wrapped in parenthesis i guess
<rhys>
bean, is it possible that "something" can be a method declaration?
<waxjar>
1.upto(5).each { |x| a } is a little sexier, maybe
<havenwood>
waxjar: No need for the #each.
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<waxjar>
oh wow, really?
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<havenwood>
waxjar: Yup: 1.upto 5 do
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<waxjar>
ruby :3
<havenwood>
waxjar: On a range you need each, on an enum it knows! :D
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<waxjar>
ah yeah, makes sense
<havenwood>
waxjar: Does make it nice and clean: 1.upto(100) { |i| p i }
<bean>
rhys, sounds like you're delving into meta programming a bit -- you're just wanting 5 methods?
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<rhys>
bean, i have an unheathly like of met programming. i do things you should not do in bash.
* bean
is also a sysadmin
* bean
knows that feel bro
<jasonthesensei>
just learning ruby and im getting the error " Mocha deprecation warning: Change require 'mocha' to require 'mocha/setup' " where do i require this in my Gemfile?
<rhys>
i had one that every time it ran it would edit itself so the next time it ran every possible action it made was valid. it did that on a 1 minute cron. i loved it, my coworkers... not so much. lol.
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<bean>
lol nice rhys
<bean>
my work would kill me for that one
<waxjar>
jasonthesensei: you can give gem an :require option like so gem 'mocha', :require => 'mocha/setup'
<rhys>
they replaced my script with sharepoint. jokes on them.
<bean>
LOL
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<jasonthesensei>
waxjar: does it matter that its during test?
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<amh345>
thanks bean!
<bean>
no problem, amh345, wlecome to oop
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<waxjar>
jasonthesensei: warnings are generally just warnings, they won't break the code. but it's probably smart to change it so you can work with future versions without too much hassle
<amh345>
im guessing a can pass several args to initialize. to get file_name , size etc
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<amh345>
bean: in your example. Class2 would be the class that actually writes/has the file information. i see you've stubbed in a 11.2
<bean>
yep, you could have it instantiate as many new MyFiles as you want
<jasonthesensei>
waxjar: well there must be a problem with my code because i run the test and getanother error as well thanks i will go over my code.
<bean>
the stubbed in bit is just to show you that you can infact access file_size from a different class.
<amh345>
right now i have a cron that calls a method, writes a file and uploads it. but it's janky. so..
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<amh345>
what i've done is create a table. with all the ids that need file exporting on.
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<amh345>
but as a failsafe. i want to pass back some information to store in the table. such as file name and file size
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<bean>
valid.
<amh345>
so class1 method1 is run with a cron. method1 goes through the table and says ok, lets output this information to a file. so it hits Class2 method2
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<amh345>
class2 mthod2 actuallu pulls the data from another table, generates the file and it's done. but now i wanted to pass those file_size and file_name deets back to class1 method1 so i can insert into the original table.
<bean>
I think you're overengineering this, this sounds like somethere where you dont even need classses.
<amh345>
well, i've run into problems. here's whats happened.
<amh345>
there's one final step. and that is after the file is generated. it uploads it.
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<amh345>
now, sometimes if the file is too large i lose some of it on the upload.
<bean>
yeah, do you have any actual code you could show?
<amh345>
so im planning on doing this. generate the file. store the file name and size to the table. shortly after (maybe 10 mins) i upload the file using the filename in the table. then i dbl check the file size that's been uploaded against the filesized recorded in the table.
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<bean>
what mechanism are you using to upload?
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<amh345>
right now this is all done. the only difference is there is no table storing the file size/name data. and the cron calls Class2 method2(some_id) directly.
<bean>
that sounds terribly jank
<bean>
I'm still confused as to how cron calls ruby
<bean>
does it call a script that runns the method2
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<amh345>
uploads are happening using Net::FTP
<bean>
and, i have to ask this, are your functions named stuff like "method2"
<amh345>
oh. right. cron calls the ruby because this is on rails.
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<amh345>
so. rails runner 'Class2.method2(id)'
<amh345>
hah no. they're not called method2
<bean>
seriously though, is your class called class2
<bean>
ok
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<bean>
:p
<amh345>
nonon
<bean>
good.
<amh345>
hah
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<amh345>
i just mocked up a really simple example of how to get some data passed back.
<bean>
yeah, its not a very clear example.
<bean>
:p
<amh345>
the method to write the file is like.. several hundred lines.
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<amh345>
yeah, sorry.
<bean>
yep.
<bean>
figured.
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<amh345>
what i'd love to figure out is how to write the file.. and then wait a bit and THEN call the upload class(i didnt post the upload class example).
<amh345>
right now the uploadclass is called directly after the file write.
<bean>
I still don't know how you've never used initialize
<bean>
like
<bean>
how did you learn ruby if not with that
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<amh345>
i tried to use file.exists(file_name) before the uploader executes since the file only exists after it's written. but it's flawed.
<bean>
tbh rails related questions might be better suited for #rubyonrails
<bean>
cuz most of us here hate rails
<amh345>
bean, i've seen initialize. just never messed with it.
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<amh345>
well, this doesnt really have anything to do with railes, tbh. i mean the only place where rails comes in is the data put into the file.
<amh345>
that's why i came in here. because it's a ruby question.
<bean>
if it was me i'd be working with raw files, not something terrifying getting pulled out of a rails DB
<bean>
*shudder*
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<amh345>
bean: i just tried your example. it makes perfect sense.
<amh345>
heh
<amh345>
early i was just reading it- without trying
<amh345>
my_thing = Two.new < this is what had me confused
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<bean>
i figured you'd mess with it and see what i meant.
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<rhys>
so i know blah.stuff()? returns a boolean
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<rhys>
does does blah.stuff()! designate mean? i don't even know what to call these
<rhys>
it keeps mentioning convention
<waxjar>
the exclamation mark and the question mark are part of the method name
<bean>
you mean blah.stuff?() and blah.stuff!()
<bean>
yep
<bean>
? means returns a boolean
<bean>
! means, make the change
<bean>
instead of returing a new object
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<bean>
so if you look at Hash#merge vs Hash#merge! you'll see that you can also call hash#merge! as Hash#update
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<rhys>
hash merge was exactly what i was looking at. got it.
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<Quadlex>
ffrferf
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<amh345>
is ruby any good for writing little desktop apps?
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<amh345>
widgets and the like?
<amh345>
i downloaded something called rubyshoes awhile ago. it was ..ok.
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<codesoda>
you can build apps with macruby
<codesoda>
and ios apps with ruby motion
<waxjar>
RubyMotion (Ruby for iOS) seems to be pretty hot lately
<codesoda>
one there are more DSLs to hide away some of the Cocoa complexity it will be better
<codesoda>
might as well write Objective-C at the moment
<codesoda>
there is a nice Pod setup now though
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<codesoda>
dependencies are managed like ruby gems
<waxjar>
do you know of any popular apps written with macruby codesoda ?
<codesoda>
I know checkoutapp was done with a derivative using python
<codesoda>
surely the macruby wiki would have examples
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<zeroeth>
amh345: if we're talking guis. there's jruby + java guis, macruby and cocoa, or wxWidgets, probably more around the other toolkits like FLTK or TK
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<waxjar>
hmm, they don't seems to have a list
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<amh345>
is it worth playing with this stuff or a total waste of time? i know way back when i looked and it wasnt very promising.
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<zeroeth>
amh345: what do you want this 'desktop' app to do
<amh345>
zeroeth: nothing in particular to be honest. i've jsut always wanted to try something. it could literally be anything. like a cpu monitor.
<amh345>
my main computer is osx. if that makes a diff
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<waxjar>
i find the whole Xcode thing really confusing
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<waxjar>
tried it a few times, but i think i didn't have a good guide for it. didn't understand much of it
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<zeroeth>
amh345: that could be accomplished in all of the above mentioned frameworks.
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<codesoda>
you should checkout titanium desktop
<amh345>
is there a limit to what you should try? like say.. if i wanted to make a game (i dont, just saying) would it be possible in ruby, or would someone look for something betteR?
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<codesoda>
can target linux, winblows osx
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<amh345>
im getting tired of webapps and rails. i'd like to get better with ruby.. and i figure web apps might be a fun thing to learn
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<amh345>
err dekstop apps. not webapps
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<zeroeth>
amh345: again.. really depends on what you're trying to make. game/desktop are vague. ruby has game libraries like Chingu/Gosu, or bindings to C++ ones. Or plain ol GLUT+opengl
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<amh345>
zeroeth: ok, cool. so it seems like there isnt really a limit to what it can do.
<amh345>
that's kind of what i was wondering.
<amh345>
like, oh yeah. you should trying to make an office clone in ruby.
<zeroeth>
ruby is just a language, it has bindings to lots of things on various host systems.
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<amh345>
zeroeth: hah. thats a cute game.
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<zeroeth>
the sprites are from an opensource set some guy released, but yeah its a nice game, and fun code to look at
<mellow888>
hi
<zeroeth>
since its got a physics engine too
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<zeroeth>
(bindings to a C++ one that is)
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<amh345>
so it's all packaged in a executable and doesnt require ruby to be installed?
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<zeroeth>
amh345: ruby is in the package
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<zeroeth>
amh345: there are a few different attempts at distributing stand alone ruby apps, but generally yeah you create an isolated ruby environment with all the gems for your app
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<mellow888>
does anyone have any clue how I could take information I read from a tcp socket, and send it to a python program to stream it through a messaging protocol?
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<amh345>
i think im def going to try something. thanks for the info zeroeth
<amh345>
awesome. im going to try something shortly
<amh345>
i want to see if i can figure out why rubyist hate rails :)
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<zeroeth>
amh345: oh and fyi, wrath used OCRA
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<amh345>
i feel like jumping into rails and ruby at the same time is sort of a bad idea. while rails is awesome… you miss a lot of the how it actually works stuff.
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<Quadlex>
pet hate: When you ask people for advice for a small issue and their response is to tell you why your entire architecture is wrong
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<Quadlex>
And even once you admit it is, they can't shut up about it
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<alainus>
How is nil treated in a conditional ? nil and nil > false, nil and true > nil, nil ? true : false > false
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<alainus>
nil == false> false
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<alainus>
(nil or true) and (false or true) > true
<alainus>
confuzed
<amh345>
bean, i hate to bother you again. but im messing with your example. im trying to assign some variable so i can access them directly. right now im returning => #<ClassTwo:0x007fd44966b618 @size="1.2GB", @another_val="testing val"> i see .instance_variables gets the variable name. but no where can i find how to get the value.
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<Quadlex>
alainus: Why not pop open irb and have a play?
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<havenwood>
alainus: nil and false are the only things that aren't true, but nil != false. There are no comparison operators on booleans.
<amh345>
oh. wow
<amh345>
i finally got it. .instance_variable_get :@size
<amh345>
i swear i tried that method before with a nil result.
<Quadlex>
(Not trying to be unhelpful, I just personally find that dicking around ina REPL is much more satisfying)
<alainus>
ok but even if nil is not the same as false, false and nil can be used interchangeably in a conditional statement, right ?
<Quadlex>
alainus: Yes, sort of.
<Quadlex>
If you're ever checking for "False" explicitly, and you encounter nil, you'll get a (ahem) false positive)
<Quadlex>
EG unless student.passed_exam?
<alainus>
i guess i'll never check for false explicitly though
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<havenwood>
alainus: Methods that end in a question-mark are basically a contract that nil or false is one possible value, since everything else is true.
<Quadlex>
If passed_exam is nil, that might be a logical error
<Quadlex>
But your code will happily assume they failed the exam
<Quadlex>
Perhaps they've just not taken it yet
<havenwood>
Yeah, false is nice when its actually false.
<Quadlex>
But you can test against the class to ensure falsehood, eg value === false
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<havenwood>
nil === false; #=> false
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<Quadlex>
'sactly
<havenwood>
threequaaaaaals
<Quadlex>
*guitar riff*
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<jasonthesensei>
can someone recommend a good book on ruby and rails?
<Quadlex>
jasonthesensei: Are you new to Ruby or just Rails?
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<otters>
ok for some reason this is escaping me
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<otters>
but I need to convert week difference and day difference between two dates into integers
<jasonthesensei>
kind of learning them together
<jasonthesensei>
new to both
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<otters>
how do I do it
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<jasonthesensei>
havenwood: thank you
<havenwood>
jasonthesensei: Rails-related questions will get more love in #RubyOnRails.
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<havenwood>
jasonthesensei: I think 'The Ruby Programming Language' is great. Ruby Koans is fun. TryRuby.org is a great uber-basic intro.
<Quadlex>
jasonthesensei: One thing I've found. The guides on the rails site are quite good, but the 10 minute lets build a blog introduction to Rails is a LIE
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<Quadlex>
Are you in SF? You might want to go to a RailsBridge and see if that's helpful
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<havenwood>
jasonthesensei: Ruby is great fun. Sinatra might be an easier to start with than Rails.
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<havenwood>
jasonthesensei: Or learn Ruby before you embark on Rails.
<havenwood>
jasonthesensei: I think it better to know Ruby and not Rails, than the other way around.
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<havenwood>
**as a starting point.
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<MagBo>
guys, let's say I have a ton of utility scripts in ruby and I want to use those from irb. how do I import stuff there?
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<havenwood>
MagBo: First, use Pry not irb. :O Then add requires to your scripts in your .pryrc.
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<havenwood>
MagBo: But if you must, .irbrc.
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<MagBo>
havenwood: no-no, I'm ruby noob (work as Erlang senior developer, using Elixir and charmed by ruby)
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<MagBo>
I'll have a look at pry, thanks!
<alainus>
can I do "function_a and return if expression" ? (the intention is to execute function_a and return afterwards), or do I have to use a block ?
<Quadlex>
MagBo: Ooo, Shiny!
* Quadlex
was thinking of learning another language, Erlang was one competitor
<bnagy>
alainus: return some_meth if blah should wok
<bnagy>
*work
<havenwood>
MagBo: Elixir seems awesome!! Just been playing around in iex, but so nice!
<havenwood>
Quadlex: If you want to check out Erlang, but love Ruby, Elixir is sweet.
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<Quadlex>
havenwood: I'll do so
<Quadlex>
I'm trying to do some monkey patching of testing frameworks
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<Quadlex>
I've got a gem which runs an rspec test a few times, and creates a driver inside it (for Selenium)
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<Quadlex>
Capybara uses Procs to creat its own drivers, and does so the first time a DSL method is called
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<MagBo>
havenwood: yeah, we use it in production and it's great :)
<Quadlex>
I'm trying to figure out a nice way of patching the custom capybara drivers we're creating to get the "current" selenium driver from rspec instead, and I've no idea how
<bnagy>
alainus: do_something and return works
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<bnagy>
huh, weird, looks like meth and return if blah returns nil and return meth if blah returns the result of meth, which is what I expected both to do
<bnagy>
so there you go.
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<Quadlex>
Time for Fun With Mutexes
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<akam-it>
Hello!
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<akam-it>
is there a function to reverse hex?
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<akam-it>
i.e. i have 0xccf7e314, and I need to reverse it to 14e3f7cc
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<havenwood>
akam-it: Hrm. Normally, #to_i(16) is the opposite of #hex.
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<havenwood>
Oh, reverse... I'm slow.
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<axsuul_>
How can I track which classes have a module included in?
<axsuul_>
i.e. i have a module Foo
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<axsuul_>
i have about 6 classes which include Foo, how do I get those 6 classes?
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<bnagy>
if you can modify the module, you could use include hook
<bnagy>
otherwise you should look at walking ObjectSpace
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<axsuul_>
bnagy: for the hook, where should I store the classes in? class attribute?
<bnagy>
uh, wherever makes sense I guess
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<axsuul_>
bnagy: Is there such thing as a Module instance variable, so that only Foo can access this instance variable
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<rickmasta>
I can
<rickmasta>
I can't get rubygems to install with rvm.
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<akam-it>
sonne, i dit that for reverse hex rev = ((0...hexStr.length/2).map {|i|hexStr[i*2,2]}).reverse.join.to_i(16)
<akam-it>
*so
<rickmasta>
Actually, it's only with ruby 2.0.0
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<axsuul_>
Anyone why accessing class instance variables doesn't work, but class_variable_get works?
<axsuul_>
calling this at the class level
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<bnagy>
axsuul_: play with a few examples
<bnagy>
in particular, try doing p self at various times to see 'where' you are
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<julian-delphiki>
amh345, hey, just saw your message from forever ago. You can also expose the instance vars with attr_accessor.
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<julian-delphiki>
so that way you can just do object.file_size
<julian-delphiki>
etc
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<amh345>
instead of instance_variable_get?
<julian-delphiki>
i mean, that works
<axsuul_>
Thanks, got it
<julian-delphiki>
attr_accessor will expose a getter and setter on the class.
<julian-delphiki>
if you know what i mean
<amh345>
i already had attr_accessor defined. but i wasnt able to access the var without instance_variable_get
<julian-delphiki>
not true at all
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<amh345>
hrm
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<amh345>
julian-delphiki: well thats all i found to work when i was doing the googles.
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<julian-delphiki>
you should just be able to throw the attrs in to attr_accessor for that class.
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<julian-delphiki>
attr_accessor is the same as: def file_size; @file_size; end, and the equivilent setter
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<amh345>
maybe ill mess with it some more. but im super tired. ive been at this for awhile now.
<amh345>
so i set a cron to start the export. it does it's thing. passing the details back. another cron will later on begin the upload of that file to a server based on the information passed bac
<julian-delphiki>
you really really need to revist object oriented
<julian-delphiki>
I fear for your team if you dont
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<julian-delphiki>
you will RARELY find a use for "self.whatever" methods
<julian-delphiki>
those are class methods
<TTilus>
amh345: do you need ruby, that sounds like a task for shell
* julian-delphiki
agrees.
<julian-delphiki>
he says he needs to get data out of his terrifying rails DB
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<waxjar>
a rails DB?
<amh345>
mysql
<julian-delphiki>
its a rails app
<waxjar>
you don't need rails to get data out of a database
<TTilus>
amh345: you export your model data, right?
<amh345>
i do
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<TTilus>
amh345: id first go without ar, just plain sql
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<julian-delphiki>
he's uploading some terrifying computation of the files, over ftp
<amh345>
i really dont want to tear everything down :/
<waxjar>
what exactly do you need to do amh345?
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<TTilus>
amh345: u do computation based on youd model data, right?
<TTilus>
amh345: and export that?
<amh345>
what im doing now is running a cron on a class to export specific data, based on an id.
<julian-delphiki>
using rails runner
<amh345>
but i find it to be a little hard to track what's happening.
<amh345>
i am using rails runner
<TTilus>
why not add logging?
<amh345>
i want to upload said exported file. but currently it's a little sketchy. so i want to create a master table to control everything. pass data on the file back and at a later time start the uploads.
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<amh345>
what will loggin do?
<waxjar>
i still don't get it. you're pulling data from a database, produce files with those and put those on an FTP server?
<amh345>
logging*
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<amh345>
yes, waxjar
<waxjar>
okay
<amh345>
but right now the upload is called directly after the file exports.
<waxjar>
do you produce files in a standard format?
<amh345>
and i find it's a bit flaky. sometimes the file hasnt finished writing etc etc
<amh345>
waxjar: all sorts of formats. there are many different files.
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<TTilus>
amh345: not finished writing?
<julian-delphiki>
amh345, why not call the FTP as part of your export
<julian-delphiki>
ie. at the end of you generate file command
<TTilus>
you have separate thread or processes for upload and fie writer?
<amh345>
julian-delphiki: that's what i was doing. but i was getting a lot of people telling me the file was missing data.
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<amh345>
the ends of the file specifically.
<TTilus>
amh345: did you close the file before sending?
<TTilus>
amh345: or flush
<amh345>
i wrote something to check the file size locally against what it uploaded. and it rarely matchd.
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<amh345>
TTilus: yeah. i did file.close then directly UploadFile.upload_some_file(file_name,blah)
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<waxjar>
do you need to process the data on command or is this a one-off script?
<amh345>
the idea here is that i can a) record what SHOULD be in the file in a table. what the file size is and the file name. then slightly later (a few minutes) run another cron for the uploader. uploader pulls the data from the table and that's it.
<amh345>
im not sure what you mean waxjar. i export once per night.
<julian-delphiki>
you really really need to read up on OOP
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<julian-delphiki>
i dont think you understand object oriented in ruby
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<TTilus>
these problems might go deeper then oo design
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<julian-delphiki>
i'm being a bit harsh right now, but the way you mix up instance vars, instantiating new classes, creating new instance vars, etc, makes me think you dont really know about writing clean OOP in ruby.
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<julian-delphiki>
TTilus, sure, but it'd be a lot easier to understand if the code was legible and worked, and didnt stacktrace
<TTilus>
julian-delphiki: most definitely
<julian-delphiki>
basically, you want an object to encapsulate everything you're doing to the file.
<julian-delphiki>
your use of self.whatever functions doesn't really make sense when they should just be functions to perform on the file object.
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<waxjar>
anyway, your best bet would be to find out why the end of the files you're uploading don't end up on the other end, instead of trying to hack around it. it'll only get worse once you go down that road
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<waxjar>
perhaps you're not writing the file to disk before saving, perhaps the connection is a bit wonky.
<julian-delphiki>
waxjar, imo it sounds like a script that should be run, not some rails janlk
<amh345>
well they do end up on the other end. it's just on occasion they dont match
<julian-delphiki>
jank*
<TTilus>
amh345: would you be able to stop bein so vague about your usecase
<amh345>
vague?
<TTilus>
amh345: could you describe in more detail what you are doing and we'll flesh it out together
<amh345>
i mentioned earlier exactly what happened
<TTilus>
ok
<TTilus>
ill visit the log
<amh345>
ok. what i need to do is done.
<amh345>
but. on occasion there are issues.
<waxjar>
you described how you (try) do it, not what you want :)
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<waxjar>
i doubt you *want* to run crons :P
<julian-delphiki>
crons are an awful idea.
<julian-delphiki>
i'd never run ruby from a ron
<amh345>
i just found a sweet gem. so it makes my life easier. but yeah. crons suck.
<julian-delphiki>
cron*
<julian-delphiki>
and im a sysadmin running > 200 bank websites.
<waxjar>
oh wow
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<amh345>
i have many sites with many different reports. each site has an id. and many sites need different kinda of reports (formats) and many sites need to be uploaded to different ftp servers. sometimes and api if im lucku.
<amh345>
currently i have a cron that calls an export method with an id for that site passed.
<amh345>
this sucks because i have to have a frigging cron for each site.
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<amh345>
aside from that. each night i generate a report(s) and upload to their respective ftps.
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<julian-delphiki>
if i had to do it that way, i'd have a ruby script that iterated over a list of sites.
<julian-delphiki>
and uploaded that way.
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<amh345>
sometimes the reports are not correct on the other end. i do not know why. but they are missing some of the final rows etc etc.
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<julian-delphiki>
be sure you're actually writing out the rows.
<julian-delphiki>
save the files, as well as FTP them
<julian-delphiki>
see if your report is the same as whats on FTP.
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<amh345>
so, the idea here is is that i call a single method. that checks a table for all sites that need reports. that method controls all the exporting of data. and passes the data (names,sizes, records,etc) back to the table.
<waxjar>
could it be that the upload cron runs before the produce-the-file cron has finished?
<julian-delphiki>
I wouldn't have a different cron for uploading, i'd just upload once report is done
<amh345>
then later on i can call a single upload method via cron to go through that table, check the data for exporting.. and then upload it. after it will report back if the upload was successful etc etc
<julian-delphiki>
this sounds terrifying, i'd just use some sort of apache access log parser :P
<amh345>
so that's it in a nutshell
<amh345>
julian-delphiki: see if your report is the same as whats on FTP. < this is what i do. i have an email that gets sent to me saying success on file xyz or failure. most of the time it's failure because size does not match
<julian-delphiki>
yeesh
<julian-delphiki>
i gotta go to bed
<julian-delphiki>
i can probs help more tomorrow.
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<julian-delphiki>
if i dont get stuck on some dumb sysadmin work
<amh345>
waxjar: could it be that the upload cron runs before the produce-the-file cron has finished? < the upload cron doesnt exist yet. this is what im aiming for though. but i want to start that cron maybe 30 mins after file exports.
<waxjar>
okay
<waxjar>
don't do that :P
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<waxjar>
find your bug instead
<amh345>
the reason im going for so much automation and tracking is im going on vacation in a few days. and the last thing i want to be doing is stressing over what the hell happened to my uploads.
<julian-delphiki>
imo thats a bad idea, due to iowait, etc, you dont know when your files wil be done
<julian-delphiki>
i'd write the file all at once
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<amh345>
waxjar: i literally have no clue where the bug is. even if it WAS on the ftp servers end. it's still a problem.
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<amh345>
hell, if it's a problem on the ftp server. nothing will help.
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<julian-delphiki>
its not likely that its a problem with the ftp server
<julian-delphiki>
if it is, try upload over SCP / rsync
<amh345>
unfortunately i dont have any log info for the ftps to know what has happened.
<julian-delphiki>
night
<waxjar>
you should get some kind of feedback i imagine
<amh345>
thanks for the assistance julian-delphiki
<TTilus>
amh345: if you are going on vacation in a few days, this is a _very_ bad moment to introduce new automation
<amh345>
waxjar: there's a big disconnect once that file is out. and that's a big part of the problem. the other shitty thing is i cant go into the ftp the next day to see what the file looks like
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<waxjar>
you could set up a simple web interface that allows the sites to download the reports from your server in case the upload failed, as a safe guard
<amh345>
the OTHER huge problem is that some of these files are encrypted with a pass i dont have.
<amh345>
waxjar: a web interface is a way i would love to go.
<amh345>
a lot of my clients are moving the api route. which also helps tremendously.
<amh345>
or just sit the files on my ftp and let them deal with downloading them.
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<shock_one>
Is there a more concise way to get the file directory than this: File.expand_path(File.dirname(__FILE__)
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<MrZYX>
on ruby 2.0 there's __dir__, previously, not that I'm aware of
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<shock_one>
I can't use __dir__, but just out of curiosity — is it expanded path or not?
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<MrZYX>
even calls realpath behind the scenes iirc
<shock_one>
And why the fuck it's in lower case letters?
<MrZYX>
because it's a method
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<marcdel>
does anyone know why accessing an array of 5 elements with ar[5,0] it returns [] but ar[6,0] returns nil?
<TTilus>
MrZYX: if you still care i thought id whip up something rough along the lines i'd be doing if i'd absolutely need to accomplish that in ruby http://pastie.org/private/wcnsnpmrpdwxjzjfnt5hq
<MrZYX>
wrong user ;P
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<TTilus>
MrZYX: sorry, ment amn
<TTilus>
(/me is wondering ho on earth did i manage to do a typo like that
<MrZYX>
that gives you the contents of the file, interpreted as YAML, as a hash, not a File object (actually it gives you false currently, likely because the file is empty)
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<Animawish>
:O it workssssssssss
<Animawish>
this is the greatest thing ever
<MrZYX>
now make it a class and don't use global variables ;)
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<Animawish>
but dollar signs are my friends :c
<Hanmac>
only in your pocket
<MrZYX>
actually, they only pretend, they stab you in the back the moment you turn around
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<Animawish>
they've been lying to me all this time?
<MrZYX>
yes
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<MrZYX>
just carefully step away from them, keeping an eye on them while doing so
<Animawish>
if there's one thing I'm bad at in ruby, it's classes.
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<Animawish>
which is kind of hilarious if you think about it
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<Animawish>
because that means i'm kind of missing the entire point
<MrZYX>
you're actually kindof working in one currently, try p self.class ;P
<Animawish>
:P
<MrZYX>
gotta go now, hf ;)
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<Animawish>
thanks for the help MrZYX|off :3
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<apeiros_>
mrwn_: use parens in your .gsub, then just chain the .sub
<apeiros_>
mrwn_: also, don't use @ivars for temporary values, use lvars
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<mrwn_>
aperiros_: oh thank, i didn't know it can be chained, thanks man
<apeiros_>
mrwn_: also, use tab completion for nick names in irc - makes you not typo them :-p
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<evangelosavgerin>
Hello guys, Need some help. I'm doing an api call with HTTParty to an API written in Java with Gson, but instead of getting a Json (hash) i'm getting a String. Does anybody know how to parse it?
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<apeiros_>
evangelosavgerin: JSON.parse
<evangelosavgerin>
apeiros_: lemme try
<evangelosavgerin>
apeiros_: thanks a lot mate!
<mrwn_>
apeiros_: oh i didn't know that, thanks for the info
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<evangelosavgerin>
ls
<lkba>
dir
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<rubarLion>
does irb have a max length for an aarray
<rubarLion>
full thing isn't showing
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<apeiros_>
rubarlion: no
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<apeiros_>
vanilla irb does not
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<RedPunch>
Can somebody please modify that to create a @gists_author map. Given that the gists object has a field author
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<ofcan>
is this valid ruby code? >> if drafts_state = options.delete(:drafts) ? I saw it in some open source project and am wondering why is there no comparison operator instead of equals one?
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<apeiros_>
yes it is valid
<apeiros_>
@ ofcan
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<ofcan>
apeiros_: can you explain? when I enter that in irb, it returns error...
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<havenwood>
ofcan: If you use a = operator, Ruby knows you meant the == method: warning: found = in conditional, should be ==
<havenwood>
**in an if-statement, I mean.
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<ofcan>
havenwood: oh! so it is some kind of syntactic sugar?
<sepp2k>
ofcan: Well, it's not valid just by itself. The "if" still needs a body and an "end".
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<sepp2k>
havenwood: I'm pretty sure he didn't intend to use == here.
<havenwood>
ofcan: Not sugar so much as throwing a warning but continuing when == makes sense and = doesn't.
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<ofcan>
also, where does this 'drafts_state' come from?
<havenwood>
ofcan: Looks it up in the options hash.
<sepp2k>
ofcan: It's being defined right there.
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<sepp2k>
= is assignment, not equality.
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<ofcan>
sepp2k: defined and compared at the same time?
<sepp2k>
No, nothing is being compared.
<havenwood>
ofcan: The `=` on line 27 is an error that only works because Ruby is so kind to us. The `=` on line 28 is not an error, it is an assignment operator used correctly!
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<sepp2k>
havenwood: That's not true. Stop confusing him.
<havenwood>
sepp2k: What isn't true?
<ofcan>
yup, now I'm confused
<sepp2k>
havenwood: That it's an error.
<sepp2k>
The = on line 27 is an assignment operator just like on line 28.
<havenwood>
sepp2k: Good idea to write -w safe code... If it throws a warning it is wrong.
<sepp2k>
havenwood: If you replaced the = with a ==, THAT would be an error.
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<sepp2k>
And Ruby never treats = as an equality operator.
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<ofcan>
sepp2k: so we define drafts_state on line 27?
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<havenwood>
>> puts 'yes it does' if whatev = true
<eval-in>
havenwood => /tmp/execpad-d1d35298ecf3/source-d1d35298ecf3:2: warning: found = in conditional, should be == ... (http://eval.in/14185)
<workmad3>
I think what havenwood meant was that line 27 is a syntactically correct construct that could potentially be a typo-error
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<sepp2k>
workmad3: But it isn't in this case.
<sepp2k>
Line 27 works exactly as intended.
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<sepp2k>
If line 27 contained a ==, that would be a typo error that's syntactically valid.
<workmad3>
no, but it's still not the most readable code, and it's so often an error that the interpreter has a warning specifically for it :)
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<sepp2k>
The intent of line 27 is not to compare anything for equality.
<banisterfiend>
workmad3: which client side js framework do you use?
<banisterfiend>
workmad3: i mean MV*
<ofcan>
sepp2k: aaah! got it! :D
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<workmad3>
banisterfiend: I don't use one exclusively
<banisterfiend>
noob
<workmad3>
banisterfiend: hell, the most recent JS stuff I've done, I didn't use one at all :)
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<banisterfiend>
:P
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<banisterfiend>
workmad3: which ones have u looked at?
<workmad3>
banisterfiend: we started with ember on that stuff, but pulled it out when we were getting event conflicts that we couldn't keep contained within ember (probably through misuse, but was still a problem :) )
<workmad3>
banisterfiend: main ones I've done more than just play with are ember and backbone
<sepp2k>
havenwood: Since that code prints "yes it does", the = is obviously not interpreted as ==. Otherwise it would complain about whatev not being defined.
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<banisterfiend>
workmad3: what do you think of backbone, and have you touched any of the frameworked built on top of it like marionette.js ?
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<workmad3>
banisterfiend: I quite like backbone... it's simple enough that you can mould it to pretty much whatever you want
<havenwood>
sepp2k: I'm just pointing out it throws a warning, isn't -w safe code. Error was probably not the correct term, I haven't had coffee yet. Going for coffee now, hopefully will improve my correctness!
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<banisterfiend>
workmad3: have you figured out the best way to get it working with websockets rahter than http/rest ?
<workmad3>
banisterfiend: if I redid the stuff I've been doing again, I'd probably do it in backbone rather than an abortive attempt at ember initially
<workmad3>
banisterfiend: no, I've mostly just used rest apis so far in my js
<sepp2k>
havenwood: It only produces a warning when you assign a constant though.
<havenwood>
Brewing coffee with paper towels... grr.
<workmad3>
banisterfiend: apart from my forays into meteor :)
<sepp2k>
havenwood: It will not produce a warning for line 27 of the linked code.
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<workmad3>
banisterfiend: but then the actual comms details are hidden
<workmad3>
banisterfiend: what are you playing with?
<havenwood>
sepp2k: Uhhg, I just got what you're saying... I'm slow on the uptake - really going to go ghetto brew some coffee now!
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<banisterfiend>
workmad3: marionette.js (built on backbone) and websockets. I really like it, i had a brief look at ember.js but it seemed like an overcomplicated clusterfuck
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<workmad3>
ember isn't too bad if you have the time to invest in learning it really well, and your UI events are pretty independent
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<workmad3>
but, at least when I tried it, our UI wasn't really a good fit (but I didn't realise that at the time), it was still in development and changing a lot, and it was not clear at all how to test it
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<banisterfiend>
workmad3: do you use coffeescript primarily?
<workmad3>
yeah
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<workmad3>
but then, I also use rails primarily, so I get the compilation in place pretty easy :)
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<workmad3>
I think my future 'default' stack for my own projects would probably be minimal backbone with a JS repository wrapping the API rather than trying to build on top of an existing datastore library initially
<workmad3>
and I quite like the way I used server-generated html templates that got manipulated by JS, rather than a massive JS templating solution like handlebars
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<banisterfiend>
workmad3: i guess it depends on how webappy your project is rather than websitey
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<workmad3>
yeah, it's something I'd definitely say with JS frameworks... they're a *lot* more project-dependent than the web framework, IMO
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<workmad3>
plain backbone is reasonably minimal, so is a good base to build something on initially, but if you know more about your project then you could make a more appropriate decision about framework
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<banisterfiend>
workmad3: my interest in them is because i want to write cross platform apps, that i would typically have done in cocoa (which wouldn't have been cross platform :P)
<banisterfiend>
really i'm doing offline webapp development i guess
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<workmad3>
well, you can still do a lot with jQuery, a decent amount of discipline in maintaining app concerns, and local-storage :)
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<banisterfiend>
workmad3: sure but MVC feels like the right way to do it, so i might as well use an MV* lib :)
<havenwood>
Mental note: When wrong today, just yell "APRIL FOOLS!"
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<banisterfiend>
workmad3: though backbone kind of confuses me with its take on mvc
<workmad3>
banisterfiend: don't be certain on that front ;) the stuff I've been doing has actually fitted a lot more nicely into document-presenter style UI architecture than MVCs :)
<workmad3>
banisterfiend: and backbone doesn't give you a full MVC, it gives you MV and leaves you to make a decision on C, P, VM, whatever
<havenwood>
workmad3: What's your take on Ember.js?
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<banisterfiend>
workmad3: do u have any links on document-presenter stuff? i've never heard of that
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<workmad3>
banisterfiend: you have a single document that contains your data, and it gets surrounded by a host of presenters
<workmad3>
banisterfiend: it's distinguished from MVC as your document tends to be much lighter in functionality and domain-logic than the model in MVC
<banisterfiend>
workmad3: but i want "widgets" :) and MVC seems like the best way to implement those
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<workmad3>
banisterfiend: however, it'll be much more similar to traditional UI MVC, rather than the MVC of webapps, which is really closer to model-2 architecture http://en.wikipedia.org/wiki/Model_2
<sepp2k>
llaskin: Please don't ask the same question in two channels at the same time. That just leads to confusion.
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<workmad3>
banisterfiend: with widgets, what you really get is a host of 'little MVCs'... one for each widget
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<workmad3>
banisterfiend: in my latest JS-heavy stuff, what we had was a server-side model that contained all the domain logic, on the client what we needed was just the data... so we had a data-store (our document) that contained update logic to maintain consistency with the server, and then a set of widget-ey things that all wrapped around this same document and presented different aspects of it, providing controls to update, etc.
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<banisterfiend>
workmad3: sounds cool
<workmad3>
banisterfiend: it was kinda fun to get working :) but it wasn't really a good fit for ember (or MVC in general) in the client-side stuff
<frozenfoxx>
I'm having some real serious issues getting rvm installed on a Debian testing box, anyone got a minute?
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<workmad3>
banisterfiend: if you have more domain-logic in your client, then MVC becomes more reasonable again :)
<frozenfoxx>
In short, when I do a rvm install ruby it gets down to where it's going to install rubygems and then chokes since it apparently is having an issue loading ruby...I think
<frozenfoxx>
I've tried changing the ruby version to 1.9.3 and that also fails.
<frozenfoxx>
Nothing special about the machine, just a straight-up Debian testing box and I've tried the quick system-wide installation method using sudo described on the RVM website.
<unstable>
http://www.soulbroken.co.uk/code/sublimephpcs/ .. for php I have this sublime extension which checks my code for the proper idioms, there are facebook debugging tools to find undecared variables, unused variables, wrong number of arguments, etc etc etc. It finds code smell. Which is helpful for training me to produce less code smell. Is there something like this for ruby? Something that will tell me what the ruby/rails idioms are to follow, and find certai
<havenwood>
frozenfoxx: How did you install rvm?
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<Hanmac>
frozenfoxx: #rvm and you did you have all build depends of ruby installed?
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<imbric>
hey guys,
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<imbric>
I've got a question about using proxy objects. I'd like to make it such that String.new can be called (i.e., existing code doesn't change) but a String proxy is returned
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<Hanmac>
imbric: why do you want that?
<imbric>
I've seen a few articles about creating proxy objects, but hey usually require doing something like Proxy.new( other_object)
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<imbric>
its part of a research project that wants to translate certain function calls to RPCs without the original program needing any rewriting
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<workmad3>
imbric: you can't do that sort of replacement with classes like String or Hash
<workmad3>
imbric: because the literal representation bypasses any replacement you can do
<imbric>
ok, that's actually fine. We we're playing with String just because its a default Class, but its not the actual class we'd like to do this with
* My_Hearing
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<workmad3>
imbric: also, there's been a lot of work on making RPC transparent over the years... none of them have worked, because the way you use RPC interfaces needs to be used differently
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<workmad3>
imbric: transparent RPC is built on the idea that local and remote should be interchangable... but just the fact of network latency makes that an unworkable assumption
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<workmad3>
imbric: however, for other classes, what you can do is 'shim in' proxy-class replacements... e.g. 'class FooProxy; proxy_class = Foo; //do stuff here to make a proxied object and do stuff with it here; end; Foo = FooProxy;'
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<rosster>
Hi, how do I force ruby to reload a ruby file that I have edited
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<rosster>
I.e in pry I like to test code as I write it
<workmad3>
rosster: it's best to restart your runtime generally
<rosster>
And would prefer to not have to restart pry each time
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<rosster>
ye, I guess it is probably better
<rosster>
but just thought there maybe a require or load that forces reloading
<workmad3>
rosster: you have to clear out existing stuff if you don't want to have potentially weird conflicts
<banisterfiend>
rosster: you dont have to restart pry
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<banisterfiend>
rosster: you can use: reload-code command in pry
<banisterfiend>
rosster: reload-code can reload modules/classes/methods/commands
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<imbric>
workmad3: I sort of understand that, but it still warns about an already initialized constant. Is there a "strict" mode in which this sort of thing would fail instead of warn?
<banisterfiend>
rosster: i.e: reload-code MyClass
<banisterfiend>
will reload the code for that class
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<banisterfiend>
reload-code MyClass#my_method will reload that method code
<banisterfiend>
etc
<rosster>
ahh I see
<rosster>
perfect thanks!
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<banisterfiend>
rosster: alternatively you can always just use the 'edit' command to modify your code in pry, in which case pry automatically reloads it
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<rosster>
kk cool, will try that then
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<workmad3>
banisterfiend: any edge-cases where that's potentially unsafe?
<rosster>
banisterfiend: is there a way to reload an entire module?
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<banisterfiend>
workmad3: well there's situations where it just wont work, i.e their class inherites from a Struct.new()
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<banisterfiend>
rosster: depends what you mean, you mean a module with a bunch of submodules, so u want all those reloaded too?
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<rosster>
yip
<rosster>
basically anything in the module reloaded
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<banisterfiend>
rosster: i havent implemented that feature yet, but it's not that hard to do i guess. you can file an issue for it: https://github.com/pry/pry/issues
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<wishfoundry>
can I ask a question
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<Hanmac>
no you can only answer :P
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<rosster>
banisterfiend: cool thanks, I don't know how useful a feature it would be to others though
<banisterfiend>
rosster: i think it's useful enough, esp since top level modules are often just namespaces
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<rosster>
kk cool
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<wishfoundry>
I have an array of hashes( e.g. [{key:"value", otherkey: 5}, {key:"other", otherkey: 6}]
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<wishfoundry>
but if I return @variable[1], it get's converted to an array
<sepp2k>
wishfoundry: Calling take on a hash returns an array.
<banisterfiend>
sepp2k: which feature of 2.0 are you most excited about?
<Hanmac>
required hash parameters are new in 2.1dev :P
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<banisterfiend>
Hanmac: can u give an example of that?
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<sepp2k>
banisterfiend: I don't know. It doesn't really have that many revolutionary features. Keyword arguments are nice, but I wouldn't say they excite me.
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<banisterfiend>
sepp2k: what about Enumerable#lazy ?
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<sepp2k>
That is nice, but it has been around as a gem for a while.
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<Hanmac>
banisterfiend: was that sample enough?
<banisterfiend>
Hanmac: confusing
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<sepp2k>
banisterfiend: The point is that if someone calls meth, he has to give a value for regkey, or he gets an ArgumentError.
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<alainus>
how can I return nil if a variable is not defined inside an expression? Example: method(var || nil if !var).do_another_thing
<sepp2k>
Or did you already understand that and just meant that the syntax looks confusing?
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<banisterfiend>
Hanmac: is there any advantage in using normal default values do you think? or should all default values be keyword arguments now?
<banisterfiend>
oh
<amth>
alainus: defined?(var) ? var : nil
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<banisterfiend>
weird
<banisterfiend>
so this doesn't work: def hello(x, y:2); end
<banisterfiend>
hello(1, 3)
<amth>
Your version is equivalent to `var || nil`, which is bad if var is falsy.
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<alainus>
amth, that doesn't work. returns error
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<amth>
Bizarre. It works for me.
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<amth>
What's RUBY_VERSION?
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<amth>
It works on 1.9.3 and 2.0.0.
<sepp2k>
banisterfiend: Right, if you use keyword arguments when defining a method, you need to supply those arguments using a hash. You can't use positional arguments in place of keyword arguments.
<amth>
alainus: What code are you using exactly?
<banisterfiend>
sepp2k: very crippled cmpared to keyword args in other languags aren't they?
<banisterfiend>
seems just a minor papering over a hash
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<sepp2k>
banisterfiend: Depends on the language.
<alainus>
i'd like session[:user_id] to be session[:user_id] or nil
<banisterfiend>
sepp2k: i had python in mind :)
<amth>
alainus: That doesn't have my snippet in it anywhere.
<sepp2k>
banisterfiend: The sematnics of function calls haven't changed at all. f(x: 23, y: 42) still creates a hash and calls f with that hash.
<amth>
And I think ActiveSupport has magic for this...
<sepp2k>
banisterfiend: They only added syntax to def, which automatically unpacks and validates that hash.
<alainus>
amth, yes because I tested (var || nil) in the IRB and didn't work when var is not defined.
<sepp2k>
So yes, it's a thin layer of syntax sugar over hashs.
<amth>
Yep. That isn't the code I gave you, though.
<amth>
The code I gave you was 'defined?(var) ? var : nil`.
<amth>
defined? is a keyword, not a method.
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<amth>
var is never actually evaluated when you call defined?.
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<amth>
If it were, it would raise an error.
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<sepp2k>
banisterfiend: But the idea that keyword arguments can't be passed as positional arguments isn't unheard of. It's the same in Common Lisp for example.
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<alainus>
amth, i was hoping for something simpler ( a .or_nil method or similar ). That makes the code very difficult to read and I prefer to simply define the var as nil if not present before in that case
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<amth>
def method_missing() nil; end
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<amth>
That is evil. Don't do it.
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<amth>
Err, `def method_missing(*a, &b) nil end`
<amth>
Or `def method_missing(*a, **kw, &b) nil; end` in 2.0.
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<amth>
Hmm... That actually doesn't work.
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<amth>
(It would still be bad if it did, though.)
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<amth>
Also, why are you using a potentially undefined variable?
<amth>
That sounds like a really bad thing to do.
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<unstable>
What is a simple way to generate an array with 10 integers inside it?
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<becom33>
I need a hash to be sorted .http://pastebin.com/7h6YFUtu I need the ['top'] key always on the top and ['end'] key always in the end
<becom33>
how can I do it ?
<Rumsteak>
10.times.map { (rand*100).to_i }
<Rumsteak>
I'm a ruby beginner so maybe there's a neater way
<injekt>
becom33: you know what hashes are for?
<Politoed>
I read "10 times nap"
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<amth>
becom33: Struct
<becom33>
injekt, well keep values in given keys
<injekt>
hashes aren't supported to be sorted, ruby will traverse them in the order you inserted the key/values but that's just a side effect, you should never rely on it
<becom33>
unlike array
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<injekt>
supposed*
<amth>
becom33: Struct
<becom33>
amth, wait
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<injekt>
you want an array
<injekt>
not a hash
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<becom33>
injekt, no I need a hash . i use the keys in
<becom33>
in my script *
<injekt>
arrays are sorted, hashes are not, nor should they ever be. You can sort a hash by turning it into an array, sorting it, then turning it back into a hash
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<MrZYX>
becom33: if you need it sorted you need an array of structs or arrays, not a hash
<becom33>
MrZYX, the problem is the values Im inserting are somthing like function "imaFunction('some string')" in using key imaFunction to check if the function is already in the hash
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<becom33>
if I use array it won't work
<injekt>
that makes no difference
<becom33>
paramter string inside the function is dynamic it changes
<becom33>
if I use a array it will insert the same function twise in to the array
<becom33>
twice *
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<injekt>
then you want a set
<MrZYX>
hm, are sets sorted?
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<injekt>
SortedSet is
<MrZYX>
right
<MrZYX>
becom33: make a struct or class representing your complex value and implement ==
<injekt>
^
<injekt>
this
<becom33>
injekt, ok umm Im gonna google about set a little if you could apply set into the script I gave before it would be alot helpfull
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<MrZYX>
becom33: we already told you that you should abstract your complex value into a class, there you can implement all sorts of comparision operators etc
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<injekt>
becom33: right, and that's the worst use case for a hash i've ever seen
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<MrZYX>
and then sortedset, array etc will behave just like you want without further effort
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<bakingbread>
becom33: I don't understand what is the purpose of the script you shared. What should it do?
<injekt>
bakingbread: he wants it 'sorted' so key/values are ordered like in the second example
<injekt>
again, not what a hash is for
<injekt>
and a hash should not be used for this
<bakingbread>
sorted how?
<injekt>
uh
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<injekt>
did you read the paste?
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<bakingbread>
yes
<becom33>
injekt, ok . is there a way i can get it as a sorted. doesnt matter how it sorted
<injekt>
"I want it sort as" ... output
<injekt>
becom33: I don't understand what you mean
<becom33>
sortted output &
<becom33>
shit
<becom33>
injekt, ok . is there a way i can get it as a sorted * output *. doesnt matter how it sorted
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<becom33>
shit
<injekt>
becom33: yes, enter the key/values in the same order you want them outputted
<becom33>
injekt, ok . is there a way i can get it as a sorted * output *. doesnt matter how it stored
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<injekt>
becom33: then no, again, hashes are NOT sorted
<amth>
However, it should be noted that "This book requires that you first read Arithmetic."
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<MrZYX>
now you're mean :P
<alainus>
hehehe
<alainus>
ok
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<alainus>
but no
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<alainus>
because i don't want a to be equal to b. I want a to be incremented in the difference that exists between a and b
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<amth>
If a is not equal to b after that, your objects are very strange indeed and should not be using shortcuts.
<amth>
I guess sets would behave differently under some circumstances.
<alainus>
no.. i'm not explaining myself correctly
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<amth>
Are a and b numbers?
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<alainus>
yes, but I want that only to work if the increment is positive, not if it's negative. a += (b-a) if (b-a)>0
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<bakingbread>
alainus: how old are you?
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<alainus>
bakingbread, 5
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<amth>
a = b if b>a
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<MrZYX>
alanp: a += b-a == a = b-a+a, -a+a=0
<amth>
lol
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<amth>
Also, what in heaven's name is this program trying to accomplish?
<bakingbread>
a += (b-a) if (b-a)>0 is the same as a = b if b > a
<MrZYX>
meh, alanp sorry wrong tab complete
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<unstable>
gem update; cd ~/.rbenv/plugins/ruby-build; git clone; rbenv install 1.9.3-p392;
<unstable>
Is there anything else I need to do to make sure everything is up to date?
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<unstable>
(I want to be up to date for any of the latest vulnerabilities)
<unstable>
s/clone/pull/
<alainus>
i guess my question was
<alainus>
if there's an operator similar to += that doesn't take negative values
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<amth>
x += y if y > 0
<amth>
But `a = b if b > a` is (probably) what you want.
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<amth>
I have always maintained that programming doesn't really require math, but I am pretty sure I was wrong on that point now.
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<MrZYX>
amth: programming requires calculating, not math :P
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<bakingbread>
MrZYX: and math is not about calculation, right? oh... wait
<breakingthings>
programming requires problem solving, not calculation!
<amth>
It really does require algebra, at least if you don't want statements like `a += (b - a) if (a-b) > 0` in your code.
* breakingthings
waits for this to devolve into programming requires peanutbutter, not lawnmower!
<amth>
This is really the first time I realized that, though.
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<breakingthings>
It all depends on what you're doing really
<amth>
It is interesting how I never noticed how much algebra I was using.
<amth>
(Or really that I was using it at all.)
<MrZYX>
math is solving problems too, calculating is what calculators do
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<bakingbread>
yes, calculators has nothing to do with math, obviously
<bakingbread>
*have
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<amth>
Sure, but what goes into them does.
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<Rumsteak_>
For commands like "puts", " print", "rand", etc : how can I get a list of these standalone commands and know from which object/module they come from ?
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<havenwood>
Rumsteak_: Using Pry instead of irb helps a ton. E.g., in Pry: $ puts
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<havenwood>
Rumsteak_: To see a list of Kernel methods: Kernel.public_methods false
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<havenwood>
Rumsteak_: gem install pry; pry
<Rumsteak_>
ok I will try these out. I am new to ruby and I am trying to figure out all the object model. In java you had System.out.println so you knew where it came from at a glance
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<amth>
ls Kernel
<amth>
(in Pry)
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<havenwood>
Rumsteak_: Pry is fantastic for that type of exploration.
<MrZYX>
Rumsteak_: try p self.class.ancestors
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<havenwood>
Rumsteak_: In Pry, type `help` for a list of the Pry commands. :)
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<unstable>
http://pastebin.com/uXeq5Ev5 .. if I do MathDojo.new.add(9) .. why is it printing 'test', since it is not an array?
<Majost>
How would one iterate through an array of hashes, and pick out two hash values from each hash? eg: [{"name"=>"one","foo"=>"bar","blah"=>"bleh"}, {"name"=>"two","foo"=>"rab","blah"=>"blehbleh"}]
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<amth>
hashes.map(&get_two_values)
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<unstable>
NoMethodError: undefined method `add' for 3:Fixnum
<apeiros_>
unstable: that's generally a bad idea
<apeiros_>
normalization should be on the "user" side
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<apeiros_>
and then you'd do MathDojo.new.add(*[1, 2])
<apeiros_>
the * tells ruby to "splat" the array and treat each item in the array as a separate argument
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<apeiros_>
i.e., add(*[1, 2]) is equivalent to add(1, 2)
<breakingthings>
apeiros_: though silly, one could potentially want to chain add and subtract, and I think that's the sort of thing he is looking for...
<apeiros_>
if you insist on a bad solution: `def add(*args); args.flatten(1).inject(0, :+); end`
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<apeiros_>
breakingthings: true, but his class isn't laid out that way
<apeiros_>
he'd have to store a state for that
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<breakingthings>
Very true, but I think that's what he's looking for help on.
<breakingthings>
Looks like he's completing it as an assignment.
<apeiros_>
have fun showing him then :)
<breakingthings>
:)
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* apeiros_
goes back watching a bit of mlg
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<breakingthings>
unstable: So, if you want to allow add and subtract to chain you're going to want a few things
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<breakingthings>
1, you'll want to store the value of this mathdojo object in an instance variable
<apeiros_>
breakingthings: ah, and yes of course, you're right. he actually showed that he wants to chain /me blind
<breakingthings>
apeiros_: no worries :)
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<breakingthings>
2, you'll want to add/subtract from that instance variable, and then return the object after each of these chainable methods
<unstable>
ok, I'll use an instance variable.
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<amth>
breakingthings: MathDojo.subtract() doesn't work right.
<p0t_>
unstable: http://pastebin.com/5Xj8dZki it was doing similar errors with other packages so i was installng them as need but i got stuck on this last one. Maybe i forgot a command for the requred pkgs ??
<breakingthings>
amth: in what scenario?
<amth>
If it has multiple arguments.
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<amth>
md.subtract(2, 3) will add 1.
<amth>
(-= -1)
<amth>
You need to inject :+
<breakingthings>
ah, good point.
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<bean>
p0t_: how is ruby installed?
<breakingthings>
unstable: so yeah be aware of ^ being incorrect if you're using my example.
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<p0t_>
bean: apt-get
<amth>
ruby-dev
<amth>
@p0t_
<p0t_>
apt-get install ruby-dev
<p0t_>
?
<amth>
Yeah.
<p0t_>
ok runnng bundle install again
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<p0t_>
amth: bean same error
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* bean
has no idea.
<bean>
good luck bro
<p0t_>
hahaha
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<p0t_>
i must suck cause i cant install any crm for the life of me
<amth>
There's even already a patch for it that hasn't been committed.
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<jokke>
hi guys. I need to fill out a login form programatically in ruby. I say fill out but i mean post. First i need to access the page though to get the hidden form fields security_token and login_ticket. is there a gem for this?
<p0t_>
fatfreecrm need live cds
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<p0t_>
along with all the other crms
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<Xeago>
jokke: you basically need to parse the html?
<jokke>
Xeago: yup
<amth>
jokke: gem install mechanize
<Xeago>
and then do a regular post using that
<jokke>
yes
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<jokke>
amth: mechanize. i'll look into tha
<jokke>
t
<Xeago>
nokogiri for html (xml as well?) parsing
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<amth>
Xeago: mechanize uses that, but it's dead simple to use.
<amth>
It's pretty awesome.
<Xeago>
ah, cool
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<p0t>
does any linux distro come with ruby preinstalled?
<Rumsteak>
mac os :p
<v2px>
gobolinux had it preinstalled iirc
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<v2px>
but you probably don't want to try that
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<p0t>
what about using rvm to install? would i have to remove anythng if i was using apt-get?
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<amth>
No, RVM is nice.
<amth>
Use it.
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<v2px>
^
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<havenwood>
p0t: There are multiple good ways to manage your Rubies. RVM is a nice option. I use chruby. Nothing wrong with apt-get with update-alternatives either.
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<p0t>
ok
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<p0t>
im trying to install ruby 1.9.3 using apt get then ill try build install
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<wishfoundry>
if your on mac you could look into jewelrybox
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<wishfoundry>
the gui for rvm
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<bluesnow>
Hi, rvm list gives me ruby 1.9.3 and ruby -v gives me ruby 1.9.3, but bundle install is using ruby 1.8.2
<bluesnow>
gem -v also gives me ruby 1.8.2
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<bluesnow>
Anyone know how I can change bundle install to use ruby 1.9.3?
<amth>
Use 2.0 for new code.
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<p0t>
An error occurred while installing debugger (1.5.0), and Bundler cannot continue. Make sure that `gem install debugger -v '1.5.0'` succeeds before bundling.
<p0t>
thats the same errror everytime
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<amth>
Weird. What does mkmf.log say?
<amth>
It should be somewhere in .rvm, I think.
<p0t>
i havent installed rvm yet
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<p0t>
it does say for me to check that log not sure where it s though
<amth>
Did you install ruby1.9 and ruby1.9-dev?
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<p0t>
amth: have you rheard of ths? seems like i can just run the iso
<Xeago>
okay, so I have this huge list of gems I want to uninstall, how would I do that while making sure I don't break dependencies of gems not included in that list
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<amth>
Well, you could use a lot of things. I would recommend Ubuntu Server, but approximately everyone disagrees with me.
<k-man>
is that due to a missing ruby package? or something else?
<amth>
I find it ironic that your Ruby error was pasted on lisp.org.
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<k-man>
amth, :)
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<k-man>
i have little experience of ruby - it looks like a bug in the gem to me but just want to confirm?
<amth>
FileUtils.copy
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<amth>
File doesn't have it for whatever bizarre reason.
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<k-man>
hmmm...
<amth>
So just sub that and report a bug.
<amth>
It should work the same.
<k-man>
sub that?
<amth>
s/File.copy/FileUtils.copy
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<amth>
In the gem code.
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<amth>
Or monkey patch or whatever.
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<amth>
Or be lazy and wait for the gem author.
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<k-man>
i'll post a report, thanks
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<k-man>
amth, /usr/lib/ruby/gems/1.9.1/gems/ssh-config-0.1.2/lib/config_file.rb:122:in `backup': uninitialized constant ConfigFile::FileUtils (NameError) when i change it to FileUtils
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<Xeago>
I have this huge list of gems I want to uninstall, how would I do that while making sure I don't break dependencies of gems not included in that list
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<amth>
Oh, you may need to require 'fileutils'.
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<wishfoundry>
Xeago: use bundler
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<k-man>
amth, oh thanks, that seems to have solved it
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<k-man>
i suppose i should do a pull request on it
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<lectrick>
I just fixed a bug where someone was "concat"ing onto an array variable. The problem is, the array variable was initialized to a constant. What happened? The constant kept growing over time to infinity... memory leak city!
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<lectrick>
I REALLY THINK ruby methods which modify the receiver should ALL end in a !. Geez
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<amth>
That's always icky. It's better than the situation in Python, though.
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<lectrick>
what is the situation in Python?
<Xeago>
wishfoundry: how would that help me?
<amth>
The default argument thing there is really subtle, whereas Ruby constants should be relatively obvious.
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<amth>
Default arguments are instanstiated at parse time.
<wishfoundry>
Xeago: because bundler manages the deps of every gem listed
<wishfoundry>
in the gemfile
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<amth>
def x(a, b=[]): b.append(a) or b
<amth>
x(1)
<amth>
x(2)
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<Xeago>
wishfoundry: globally on my system
<amth>
Oh, no implicit return.
<Xeago>
therefore there is no gemfile
<wishfoundry>
Xeago: you insane?
<Xeago>
no?
<amth>
x = lambda a, b=[]: b.append(a) or b; x(1); x(2)
<Xeago>
gem should know that rails depends on activesupport and others?
<Xeago>
let me ask it this way then: how do I generate a list of dependencies of each gem using gem?
<amth>
@lectrick
<ddd>
gem dependency iirc
<p0t>
amth: i thnk i almost got t
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<k-man>
how do you install a ruby gem from github or from a local source tree?
<Xeago>
you specify the source
<p0t>
amth: im supposed to add a couple files to my gemfile but idk where it is. any ideas
<Xeago>
I think it is with :source => "https://"
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<ddd>
gem --reverse-dependencies dependency rails (and vis versa) sorry was checking the man page
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<wishfoundry>
p0t: it would be in your root dir of project
<wishfoundry>
if you have one
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<p0t>
not sure what that is
<p0t>
thats prob the issue
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<wishfoundry>
try this: touch GEMFILE
<amth>
p0t: Gemfile in the rails root
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<p0t>
to be honest
<p0t>
idk wtf im doing anymore
<p0t>
hahahaha
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<ddd>
Xeago: ok, its positionally screwy. you have to put --reverse-dependencies flag after 'dependency' command. it chokes otherwise
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<p0t>
im really at the point i need to install something thats out of the box or my ass is grass. is there any easy implementations im willing to install a new distro
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<amth>
I would recommend Ubuntu Server Edition + RVM.
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<amth>
It is quite easy to install from there.
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<lectrick>
amth: heh i guess i don't get python syntax enough to know what's going on there
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<amth>
b is always the same list.
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<amth>
So every invocation will append to b.
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<amth>
It is really non-obvious behavior. I actually had someone commit a 'fix' for my code that relied on it without documentation.
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<lectrick>
amth: oh i see, that is weird
<lectrick>
amth: so it will just keep growing? even as an argument? wow