Topic for #ruby is now Ruby programming language || ruby-lang.org || RUBY SUMMER OF CODE! rubysoc.org/ || Paste >3 lines of text in http://pastie.org || Para a nossa audiencia em portugues http://ruby-br.org/
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<yoklov>
How can i figure out if a string represents a number? "foo".to_i returns 0, which… doesn't help me
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<banisterfiend>
yoklov: Integer("hello")
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<yoklov>
haha, thanks, I had found it though (also needed Float)
<banisterfiend>
yoklov: another way is: str.to_i.to_s == str
<yoklov>
oh that is clever
<banisterfiend>
yoklov: i think u secretly knew it though, deep in your heart
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<yoklov>
haha, hardly. I like that by doing ``Integer(foo) rescue Float(foo)'' i can get it even if it's a floating point number too much to use ``s.to_i.to_s == s'' even if it is really quite clever
<yoklov>
or is that bad style?
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<banisterfiend>
yoklov: why not just do Float in the beginning
<banisterfiend>
Float(foo)
<yoklov>
hrm. you know, I hadn't really thought about it
<banisterfiend>
hehe
<banisterfiend>
cute
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<yoklov>
hey, so i haven't written ruby in a while, and just wrote some code i'm planning on making into a blog post. before i go ahead and make a huge fool of myself, would anybody be willing to tell me if i'm doing anything bad in terms of style (or in terms of anything else) in this code? https://gist.github.com/1764233
<swarley>
yoklov,
<swarley>
live 40
<swarley>
raise 'Unknown term type: #{term}'
<swarley>
you need ""
<swarley>
to use the #{}
<swarley>
line*
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<Seuss>
yoklov: that's pretty though
<yoklov>
err, pretty though?
<Seuss>
yoklov: that's pretty, though
<swarley>
yoklov, line 40
<swarley>
raise 'Unknown term type: #{term}'
<swarley>
you need double quotation marks
<yoklov>
oh right, because of the interpolation
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<yoklov>
hm.
<yoklov>
that should error.
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<Seuss>
yoklov: do you have a book?
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<yoklov>
no
<Seuss>
where's your blog
<Seuss>
oh ok
<Seuss>
do you want one?
<Seuss>
well if you already know ruby/some other lang, it's probably unnecessary
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<yoklov>
yeah i know a few programming languages
<yoklov>
none well thouhg :p
<yoklov>
it really didn't give you an error with "- 5 2"
<yoklov>
?
<Seuss>
nope.
<yoklov>
bizarre, were there things on the stack before that?
<Seuss>
yep.
<yoklov>
oh that makes sense
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<yoklov>
what you said before is expected behavior then
<Seuss>
oh okay.
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<yoklov>
i intentionally didn't want to use any reflective/metaprogramming
<yoklov>
… though wow, that is _much_ shorter.
<swarley>
yeah i cant read that one well lol
* yoklov
is shown up
<fukawi2>
swarley, to execute gems (ie, "rhc-" gems for RedHat OpenShift)... but I've just upgraded to debian's testing version of rubygems and it seems they've moved executables to /usr/local/bin :)
<heftig>
1 -2 abs /
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<swarley>
oh okay
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<swarley>
im not sure then, it wouldnt hurt to try
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<yoklov>
heftig: input: "3 4" response: "3.0 4.0" input: "+" response: "rpn_short.rb:8:in `rescue in block in <main>': undefined method `+' for nil:NilClass (NoMethodError)"
<heftig>
yoklov: i used floats instead of integers
<yoklov>
mine uses floats
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<yoklov>
also
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<yoklov>
either way, mine's general enough that it wouldn't take much work to extend to be an interpreter for a toy stack based language, so i'm going to keep it the way it is haha (gives me future hobby programming/blogging material)
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<yoklov>
really though, yours is much more impressive. i've never been able to write code that concisely.
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<swarley>
in your defense neither have I
<swarley>
but then again, who am i to say im a good programmer
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<hostile>
To what do you two refer?
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<Boohbah>
how do i make the first and second lines prettier? :)
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<Boohbah>
i want to take a command line argument for the number of times to iterate, or default to 16
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<swarley>
Boohbah, you could use if(t == 0) then t = 16 end for line 2 i suppose
<swarley>
as far as the first line i dont think you could make it any different
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<Creeture>
line 2 could also just be t=16 if t=0
<Creeture>
== of course on the last
<banister_>
Creeture: or: t=16 if t.zero?
<Creeture>
banister_: Yeah. That's even prettier.
<Boohbah>
thanks all :)
<banister_>
Creeture: or 24t&t42
<Creeture>
heh. now you're just getting geeky
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<banister_>
Creeture: tea for two and two for tea
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<Creeture>
Oh, I got it. No idea why, but I translated.
<hostile>
OKAY
<hostile>
END }
<hostile>
bye2u
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<Boohbah>
(t = ARGV.shift.to_i).zero? ? t = 16 : t = t
<Boohbah>
all on one line :)
<Creeture>
Yeah, but that doesn't meet the original requirement of "pretty". That's almost as write-only as perl.
<yoklov>
hostile: haha, i'm just a CS major, switched from chemistry in my senior year like a fool after learning how awesome coding was.
<Boohbah>
yes, this is very perlish in nature
<Boohbah>
soon i will be writing things in true ruby fashion instead of useless one-liners :)
<Boohbah>
t = 16 if (t = ARGV.shift.to_i).zero?
<Creeture>
yoklov: you should have stuck with chemistry. CS geeks can learn outside of school and have chemistry in their pocket when they want to show off.
<yoklov>
yeah, i'm aware haha. i sort of learned hated chemsitry after doing a bunch of research though, which lead to the switch.
<yoklov>
so which part of that code made you think i was a java programmer, just out of curiosity (it will bother me all night)
<yoklov>
is it the exception handling?
<Creeture>
Well, you probably got enough chem to be a meth producer if you want anyway. You're good.
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<yoklov>
haha, definitely, 4 semesters of organic ftw
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<Creeture>
speaking of nothing to do with meth - I'm going to bed. 'night all.
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<yoklov>
night
<yoklov>
and that comment at 22:12 was directed @ hostile
<swarley>
is there a way to use a method as an argument? not a proc but a predeclared method like in perl you can define the sub lol and then pass it as an argument with \&lol
<yoklov>
method(:methodname)?
<yoklov>
i don't know if that does what you want, it just sticks out in my memory as doing something like that
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<Boohbah>
there is also #rails and #rubyonrails if you are using rails
<Boohbah>
i don't know much about rails, sorry
<gokul>
ohh there is #rails
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<Jagan_>
okay thank you gokul and Boohbah
<Jagan_>
Now i try to change the database. but functionality wise some issues in mysql gokul..
<banistergalaxy>
Jagan_: join #rails
<banistergalaxy>
Jagan_: we dont generally answer those questions here
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<Jagan_>
banistergalaxy_ okay thank you..
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<kp666>
.
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<hh__>
is it possible to run a shell command with rake?
<banistergalaxy>
hh__: sh "ls"
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<hh__>
thanks
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<shevy>
hmmm
<shevy>
when you have a class like Foobar; def initialize; @some_value = 5; where @some_value can change... how do you store this into a file? I mean the whole class, ideally...
<shevy>
including the current @some_value
<banistergalaxy>
shevy: did u like my answer for u on ruby-forum
<shevy>
what answer
<banistergalaxy>
shevy: i try my best 4 u, and get no reply, u hurt my feelings
<banistergalaxy>
pry commands arne't ruby at all ;)
<banistergalaxy>
it's not even ruby
<banistergalaxy>
hehe
<shevy>
but candlerb!
<banistergalaxy>
oh
<banistergalaxy>
ya
<shevy>
well ok
<shevy>
let's see
<shevy>
waaaah
<shevy>
Error loading /.pryrc: undefined method `block_command' for #<Pry::CommandSet:0xb73e35ac>
<hh__>
banistergalaxy: there's no way to set a shell env variable in rake?
<shevy>
Pry version 0.9.7.4 on Ruby 1.8.7
<banistergalaxy>
hh__: i never said there wasn't
<banistergalaxy>
shevy: update pry
<shevy>
hehe kk
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<banistergalaxy>
shevy: we're at 0.9.8.1
<lolmaus>
Hi!
<hh__>
banistergalaxy: how would i do that?
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<shevy>
Successfully installed pry-0.9.8.1
<banistergalaxy>
hh__: by asking me, i guess
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<hh__>
sh "SOME_ENV=testing command" doesn't seem to work
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<banistergalaxy>
hh__: ENV['SOME_ENV']
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<lolmaus>
I'm doing `p ARGV.first` inside wtf.rb with either `ruby wtf.rb "one two"` or `ruby wtf.rb one\ two`. In either way, it returns "one". How do i pass a single argument with spaces?
<banistergalaxy>
lolmaus: quote it and use shell words
<hh__>
if i had a rake task like server:start and server:stop that would start and stop redis, mysql server, etc. is there a more ruby way to do this? instead of using shell commands to start the process and write the pid file, and then to shell command stop it?
<Gekz>
so
<banistergalaxy>
hh__: you didnt say thanks when i helped you before which makes me think you're a greedy pig, so i dont want to help you anymore
<Gekz>
I'm trying to find a point in an iterator
<hh__>
i said thanks the first time
<Gekz>
so I can start iterating from that part
<hh__>
it's implied every other time after
<shevy>
Gekz!
<shevy>
why do I remember the name
<Gekz>
can I pass the .each object to another method and return it after nexting for a while
<shevy>
you didn't play warcraft 3 did you?
<lolmaus>
banistergalaxy, how do i make it return "hello baby", not "hello"?
<Gekz>
no, I argued with you about YAML APIs.
<shevy>
ah ok
<Gekz>
like 2 days ago.
<shevy>
yeah
<fourcolors>
i played once apon a time... i prefer starcraft however
<shevy>
Gekz I think you can do that somehow. Not quite sure how ... array = %w( cat dog chick ); x = array.each; x.class # => Enumerable::Enumerator
<lolmaus>
What am i doing wrong? :(
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<shevy>
x.next # => "cat"; x.next # => "dog"
<shevy>
lolmaus cool nick you have :)
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<ryanf>
yeah Gekz you can use .next and .peek on an enumerator object
<shevy>
haha there is a .peek method? cool
<ryanf>
i think then you're stuck in external iteration instead of internal though, so you need to keep calling .next once you've gotten to the right point
<ryanf>
I guess maybe there's a way around that
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<moshef>
any cool way to ask if num is negative besides doing < 0 ?
<ryanf>
alternately Gekz depending on your use case you may be able to use drop_while
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<fabiob>
(Getting a symbolic representation of a constant in a generic way, having its value)
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<aces23up>
anyone know of a string function or gem that converts the string "four" => 4, "five" => 5 just wondering if there is already something before i roll my own.
<Tasser>
aces23up, probably chronic does something like that
<shevy>
fabiob, where do you set @state ?
<shevy>
if you need to do special operations, I'd advice against using attr_accessor
<shevy>
and instead, use your own = method
<fabiob>
shevy: f.state = Foo::BAR
<fabiob>
shevy: it was just an example
<fabiob>
shevy: my problem is to get its symbolic representation
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<shevy>
well BAR resides within Foo
<shevy>
but it is not a symbol, it is a constant
<shevy>
_ = Object.const_get "Foobar"'
<shevy>
_ = Object.const_get "BAR"
<fabiob>
shevy: Maybe "symbolic" is not the right word for it
<shevy>
still, your class is kinda bad. f.state = 'bar' would seem nicer to me
<fabiob>
I would like the output to be "state: Foo::BAR", as a string
<fabiob>
BAR and BAZ are magic numbers
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<shevy>
when Foo::BAR is resolved, I think it is the value 0x01 already
<shevy>
a Fixnum
<shevy>
consider like you use:
<shevy>
f.state = 5
<shevy>
ruby wouldn't know from where the 5 came
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<shevy>
Anyway, within "state: #{@state}" you could easily do something like self.class.to_s + '::'
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<shevy>
Hmm idea
<shevy>
rather than use:
<shevy>
f.state = Foo::BAR
<shevy>
use:
<shevy>
f.state = 'Foo::BAR'
<shevy>
and make a
<shevy>
def state=(i)
<shevy>
method on your own, without using attr_accessor
<shevy>
and inside that method, you analyze the given input
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<shevy>
then you can be in full control of what happens
<fabiob>
shevy: Yeah, I was thinking ruby has something as get_constant_with_value( 2 ) -> "Foo::BAR"
<fabiob>
shevy: mmm, that's dirty
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<fabiob>
The alternative is a case statement, but I was hoping in a little Ruby magic :)
<shevy>
what should ruby do for you?
<shevy>
"state: Foo::BAR" or "state: BAR" <-- you dont describe how to handle the difference
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<fabiob>
shevy: either one is good, I don't care
<shevy>
aha
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<shevy>
that's a lot easier then
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<shevy>
btw
<shevy>
your current code is not valid
<shevy>
frobify( @state )
<shevy>
def frobify
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<shevy>
accepts no argument right now
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<shevy>
I think you have to handle that on your own then, I dont think there is an inbuilt method that queries a constant. But it is available for you in the array self.class.constants
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<shevy>
lolmaus probably something like your_string[start_position, end_position] = ''
<shevy>
the regex should return a positional number
<shevy>
hmm
<shevy>
or perhaps there is a more elegant way
<lolmaus>
shevy, it's simply str.rename(regex,'')
<shevy>
x = "foobar";x[/ob/] = ''; x # => "foar"
<shevy>
x = "foobar"; x[regex] = ''; x # => "foar"
<shevy>
well, rename looks like gsub actually
<shevy>
"foobar".gsub(/ob/,'') # => "foar"
<shevy>
or .sub
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<Tasser>
fabiob, do you need constants?
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<Amirh>
Have you ever thought the degree that a code looks like it's output?
<shevy>
Amirh is there any real correlation?
<shevy>
it seems that little pieces of code can generate a lot of different output
<Amirh>
shevy, it's an artistic view about coding.
<Amirh>
it's not a standard.
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<shevy>
aha
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<Amirh>
do you code in a way to convey visual information?
<shevy>
I try to have every output visually please me
<shevy>
sure
<shevy>
it makes it easier to spot errors
<shevy>
and find tokens of interest
<Amirh>
so what are it's criterias?
<Amirh>
how can one code like this?
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<shevy>
hmm by following certain patterns and conventions
<shevy>
it's a bit hard to say because this is not something that is static
<shevy>
it can change with experience
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<Amirh>
shevy, don't you want to do a research about it?
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<shevy>
Amirh nah. it does not strike me as very important. To me it is much more important to increase my productive code output
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<Amirh>
but it can readability for your future reuse.
<Amirh>
can help*
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<shevy>
I am not sure what you mean. I can understand my own code pretty well. :)
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<Amirh>
do you code alone or in a team?
<shevy>
I am not entirely sure what you are getting to man
<shevy>
You turned a general discussion into targeted questioning.
<Amirh>
it's still general.
<shevy>
Good. Then I shall leave the discussion to others here.
<Amirh>
How can we write codes which convey visual information about it's output.
<Amirh>
shevy, thank you anyway
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<Tasser>
can I use metaprogramming to define rake tasks?
<banistergalaxy>
Tasser: yes
<Tasser>
I did some def foo(name); namespace name do task :bar do end end end but rake -T doesn't show anything
<banistergalaxy>
Tasser: cos u didnt put a 'desc' above it
<banistergalaxy>
they only show up in -T if u have a desc
<Tasser>
ah ups
<elliot98>
for some reason doing a STDIN.gets returns nil without waiting for input from the STDIN
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<elliot98>
isn't STDIN.gets supposed to wait?
<banistergalaxy>
Tasser: correct expression is "oops" if you say "ups" you give away the fact you're really a fluffy-haired european, and not a proper person (i.e anglosaxon)
<Tasser>
elliot98, how are you launching the script?
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<Tasser>
apeiros_, each_with_progress
<elliot98>
ok...so I'll need to reopen the STDIN?
<apeiros_>
pipe.close_write # <-- the other side of the pipe will receive an EOF
<apeiros_>
pipe.close # <-- here too iirc
<apeiros_>
you can't
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<Mon_Ouie>
And being able to wouldn't make sense: if the program you're piping from closed the file, that means it won't send any more data through it
<elliot98>
apeiros_: hmm...but once it's closed, the remote side will need to open its pipe again?
<apeiros_>
elliot98: by closing it, the other side basically says "there's nothing coming from me anymore"
<Tasser>
elliot98, usually a close says "No more from here"
<apeiros_>
that said… I think you can actually send EOF without closing…
<elliot98>
apeiros_: ok, but the device should not be sending any EOF then
<Tasser>
apeiros_, you can also piss into the sink
<apeiros_>
Tasser: well, it's useful. I use it for multiline input
<elliot98>
apeiros_: it's simply sends data as it comes in
<Tasser>
apeiros_, huh? why not \n?
<apeiros_>
elliot98: I don't know your other side
<apeiros_>
and "should" & "must" are pointless if "does/does not" contradicts it…
<apeiros_>
theory vs. practice
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<banistergalaxy>
form and content!
<lolmaus>
chocolate and peanuts!
<apeiros_>
lolmice & lolcats
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<JonnieCache>
does anyone here have any bright ideas about multiple-table-inhertiance patterns in activerecord?
<JonnieCache>
i tried in #rubyonrails but theyre having a boring argument about testing
<banisterfiend>
JonnieCache: great, maybe thye'd like to hear about Plymouth? :P
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<JonnieCache>
no its much more boring than that. theyre arguing if its a good idea or not, if its the QA departments job, if youre obligated to do it out of responsibility to the client, etc etc
<banisterfiend>
well i'll try flogging my wares anyway
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<banisterfiend>
'rails' is where programmers go to die i think
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<JonnieCache>
hey i write rails all day at work and im only 24 :P
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<JonnieCache>
but youre right its barely programming a lot of the time
<dinduks>
Hello, isn't that possible: return providers[provider] ||
<JonnieCache>
why dont you try it and see?
<JonnieCache>
but yeah that should work fine
<dinduks>
I did, and it throws me an error
<dinduks>
"syntax error, unexpected $end"
<banisterfiend>
JonnieCache: well that was unsuccessful hehe
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<banisterfiend>
not even a bite ;)
<JonnieCache>
i think theyre all focused on trying to be king of irc
<JonnieCache>
maybe try again later
<banisterfiend>
nah i wasnt serious anyway
<elliot98>
apeiros_: here's the pastebin: pastebin.com/bEXJsJjm
<JonnieCache>
dinduks: there must be some other problem with the code, what you posted is fine
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<elliot98>
apeiros_: I would assume that it should loop indefinately, until a linebreak is returned
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<elliot98>
apeiros_: but it doesn't, once there is no more data, it just leaves the loop
<dinduks>
@JonnieCache There was a tabulation rather than a space... Stupid Sublime Text. Thank you!
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<JonnieCache>
dinduks: i use st2 and ive never had that problem. you can tell it to use spaces instead of tabs
<JonnieCache>
"translate_tabs_to_spaces": true
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<shevy>
"make_coffe": true
<dinduks>
JonnieCache I would have understood if it was concerning indentation, but it was that space between || and provider. Thanks for the tip, I wish it could detected the right settings from the file extension
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<lolmaus>
banisterfiend, uhm... aint a do-end snippet return the result of last executed command inside it?
<banisterfiend>
lolmaus: no
<lolmaus>
banisterfiend, so to what object is the restart! method applied?
<JonnieCache>
the return of tap
<banisterfiend>
lolmaus: lolmous
<banisterfiend>
lolmaus
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<JonnieCache>
in this case lolmaus
<lolmaus>
Ah, it's a feature of tap
<lolmaus>
"What’s tap? It’s a helper for call chaining. It passes its object into the given block and, after the block finishes, returns the object"
<lolmaus>
"The benefit is that tap always returns the object it’s called on, even if the block returns some other result."
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<lolmaus>
So in a general case, does a do...end block return the result of its last command inside?
<banisterfiend>
lolmaus: no
<lolmaus>
banisterfiend, what does it return when used without tap? Like with each
<banisterfiend>
lolmaus: well yes, the block does, but since a block is passed to a method when you get a construct like this: my_method do; end or my_method { } it's the return value of the _method_ that you get back
<banisterfiend>
beacuse even if you're passing in a block, it's still a method call, and the return of a method call is whatever the method decides to return
<banisterfiend>
which could be the reutrn of the block, but doesnt have to be (as in the case of tap)
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<JonnieCache>
the block returns its return value to place it is actually called, which is inside the actual method that takes the block
<JonnieCache>
the block is just a function that youre passing into the method
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<lolmaus>
And when do i want to use tap?
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<banisterfiend>
lolmaus: i use it when i want a fluent interface, i wrap the internals of all fluent methods in a tap {}
<banisterfiend>
i learned that trick from burgestrand ;)
<RubyPanther>
lolmaus: almost never
<lolmaus>
Oh, burgestrand is a guy around here who helped me once or twice ^_^
<apeiros_>
elliot98: wth do you use such a crappy paste service?
<banisterfiend>
lolmaus: it's also cool for this kind of thing IMO: array.tap(&:pop)
<lolmaus>
banisterfiend, how is `lolmaus.tap { |weirdo| weirdo.clear }.restart!` different from `lolmaus.clear; lolmaus.restart!` ?
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<apeiros_>
it's a single line only!!!
<banisterfiend>
lolmaus: it's the same
<apeiros_>
which is so much more important than anything else!!!
<banisterfiend>
lolmaus: it's rare you need it, but sometimes it can be OK IMO
<apeiros_>
oh, wow, IO#gets now has a `limit` argument. *nice!*
<lolmaus>
banisterfiend, i've just googled up that it's a great way to print out debug values from any part of a script
<banisterfiend>
lolmaus: if you have long call chains
<lolmaus>
banisterfiend, or math like ( k + 1 ) / ( ( q - t ) / 2 )
<apeiros_>
elliot98: anyway, I re-checked IO#gets (which you could have done too) and the only reason for gets to return nil is EOF. other cases raise.
<apeiros_>
elliot98: also you have a break in it. might as well be that which is triggered.
<banisterfiend>
lolmaus: he doesnt say where he got the name 'tap' from, im curious of its etymology
<apeiros_>
lolmaus: as of 1.9, you can just use p/pp instead of tap
<apeiros_>
ah, though, they won't work well in the middel of a chain…
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<JonnieCache>
banisterfiend: i imagine its like tapping a phone line
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<bloony>
I got an array of 91 elements and I want to put the content into a 9x9 matrix, how do I do that? I use the Matrix class..
<apeiros_>
Matrix[*ary.each_slice(9).to_a]
<triptec>
how do I add a get varible to a link_to?
<apeiros_>
triptec: #rubyonrails
<triptec>
oh yeah
<apeiros_>
and link_to doesn't care about that anyway
<apeiros_>
link_to "foo", "/bar?someparam=val"
<banisterfiend>
apeiros_: sexy
<apeiros_>
I'm sexy and you know it!
<banisterfiend>
i do now :))
<apeiros_>
oh, actually…
<apeiros_>
Matrix[*ary.each_slice(9)]
<apeiros_>
splat invokes to_a for you :)
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<`brendan>
morning
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<bloony>
triptec, ah right thanks
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<derailed>
hello ruby gods. is there a rack middelware that basically taks a directory, and then turns any .md, .haml, .whatever into a parsed file?
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<linduxed>
hey guys, i'm in need of someone who has some minutes to spare for some BDD-oriented questions
<linduxed>
i've got this project of mine that i want to get going
<linduxed>
but i need some help with writing stories and prioritizing what's to be done in what oredr
<linduxed>
*order
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<linduxed>
i'd appreciate if someone who has written cucumber for quite some time would hop into a query with me, so i could ask some questino questions on how to start
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<linduxed>
then i could probably continue on my own
<jesperht>
I want to re-run failed unit tests. I suppose checking for 'passing?' in teardown would be best, but I'm not sure how to invoke the tests again. Just calling the function directly skips the setup/teardown.
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<elliot98>
apeiros_: thanks!
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<decentrality>
this is probably really dumb. If I have a Module B which is a Module of A (so A::B ) then how do I use the helpers of A from within B? I thought I could by default!
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<ZenoArrow>
I understand the current output, but I don't understand why changing 10.times to 6.times doesn't work. If I do so, the output of puts num is 6, but the output of puts square is blank. Why?
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<ZenoArrow>
Just to say, I tried 7.times and got the expected output, but the conditional assignment of square is determined by whether num > 5, which 6 is, which is why it makes no sense!
<decentrality>
ZenoArrow: I ran the code and see the output... looking at this too
<ZenoArrow>
Thanks decentrality!
<decentrality>
i think I got it
<ZenoArrow>
Cool, what is it?
<decentrality>
yeah, I got it
<decentrality>
return (num, square) if num > 5
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<decentrality>
the two items returned need to be in parentheses, otherwise it treats it like square is the only value "held back" unless num > 5
<ZenoArrow>
If I try that, I just get an error!
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<glacius>
hey guys whats a good library fro AD authentication
<ZenoArrow>
But decentrality, that was my point, num is 6! That's why it shouldn't be held back, even if the conditional was only assigned to the square statement.
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<decentrality>
ZenoArrow: I'm not saying my fix is RIGHT, I'm saying it WORKS :)
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<ZenoArrow>
When I run your code, I get the same error messages as before: "syntax error, unexpected ')', expecting '='". FWIW, I'm running Ruby 1.9.2.
<ZenoArrow>
decentrality, I agree to a certain extent, if it works it works, but on the other hand I'd say what was found was a bug. If it is a bug, then I'd like to notify the Ruby devs so it can be fixed.
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<ZenoArrow>
decentrality, which version of Ruby are you running?
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<decentrality>
ZenoArrow: 1.9.2 (jRuby 1.6.5.1) and I do see it breaking again.. oops. strange issue
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<decentrality>
ZenoArrow: I see why
<decentrality>
ZenoArrow: starts with 0, runs to 5
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<ZenoArrow>
Sure, I thought of that too, but then if that was the case, why is the output of puts num = 6, if it was as you say then puts num would be equal to 5.
<decentrality>
ZenoArrow: I added a "puts num" and it output 0,1,2,3,4,5
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<ZenoArrow>
But the code already had a puts num'! Do you see why I'm confused! :-)
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<decentrality>
Again, not saying it's right... saying it is how it is... YES confusing abounds
<ZenoArrow>
I am grateful for your help decentrality. I think it's best for me to raise a ticket with the Ruby devs, as even if fixes exist, the original code makes logical sense, but the output does not.
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<ZenoArrow>
Do you know where the bug tracker for Matz's Ruby can be found?
<decentrality>
ZenoArrow: np. for sure, agreed... Nope
<ZenoArrow>
Okay, I'll have a look on Tinternet. Thanks again! :-)
<MaskRay>
i'm creating a rubygems mirror. can anyone tell me what does 'gem generate_index' do? i cannot find any change after executing the command
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<bsilwal>
I just installed an rails blog app. Its working fine, except if I try to browse, it takes server ip as the domain. How do i change it?
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<Tasser>
bsilwal, #rubyonrails
<bsilwal>
solved !!
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<AzizLight>
Hi everybody
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<AzizLight>
I just installed nokogiri but when I require it and run the script I get an error saying cannot load such file -- nokogiri
<apeiros_>
AzizLight: ruby 1.8?
<AzizLight>
I am using ruby 1.9.3-p0
<apeiros_>
require 'rubygems' first
<apeiros_>
ok. paste the contents of `gem env`, and make sure `gem list` shows nokogiri
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<apeiros_>
(in 1.9, require 'rubygems' is not needed, just to be clear)
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<apeiros_>
and `ruby -e 'require "nokogiri"'` gives the same error?
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<AzizLight>
apeiros_: `ruby -e 'require "nokogiri"'` doesn't give any errors, odd...
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<AzizLight>
apeiros_: I found what was the issue, stupid rvm gemset mistake
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<AzizLight>
basically I wasn't using the correct gemset in another project... thanks anyway for the help
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<hashpuppy>
i have override def role=(role) so that it will check to make sure the role is valid before it sets it. what's a good exception to throw if it is not valid?
<hashpuppy>
or raise
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<hashpuppy>
ArgumentError?
<apeiros_>
AzizLight: :) glad you found the issue
<apeiros_>
hashpuppy: ArgumentError sounds fine, or even a custom exception of yours, possibly inheriting from ArgumentError
<hashpuppy>
and stupid question. why does u = User.find(3); u.role = "lsdjfl" throw the exception, but u.role = "myvalidrole" throw a SystemStackError
<hashpuppy>
apeiros_: thanks. always like confirmation that I'm on the right track
<apeiros_>
because you have an infinite recursion there
<hashpuppy>
it says "Maybe an IRB bug!!"
<banisterfiend>
whta are the most popular testing libs in ruby?
<hashpuppy>
ohh.. i think i see what's going ong
<apeiros_>
hashpuppy: you want super, not self.role=
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<hashpuppy>
it's trying to call itsef
<apeiros_>
it isn't just trying :-p
<hashpuppy>
lol
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<banisterfiend>
rspec, minitest, bacon, which other ones?
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<apeiros_>
it calls itself until the stack is too deep, hence SystemStackError
<hashpuppy>
apeiros_: so i just call super?
<apeiros_>
yes
<hashpuppy>
or must i pass arguments
<hashpuppy>
super role?
<apeiros_>
`super` will call super with all arguments as they've been passed to the method
<gyre007>
I tried to install twitter gem as gem install twitter...but I'm getting the following error: ERROR: While generating documentation for activesupport-3.2.1 which I cant even find anything reasonable on Google...
<hashpuppy>
i think i recall that now
<hashpuppy>
thanks
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<gyre007>
anyone ideas ?
<apeiros_>
gyre007: doc errors shouldn't stop the gem from installing
<apeiros_>
you only won't have the docs
<gyre007>
apeiros_, gem is installed, I know, but why is it failing that's the q
<gyre007>
I mean why is the docs install failing
<gyre007>
anyways
<Tasser>
I got values from 0 to 1, but they should not be 0, so I'd like to smooth stuff a bit. ideas?
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<apeiros_>
val.zero? ? smoother_value : val
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<apeiros_>
val.zero? ? Float::MIN : val
<apeiros_>
as a possible value for smoother_value
<Tasser>
I used Float::EPSILON
<Tasser>
as they need to be closed to 0
<apeiros_>
Float::MIN is *slightly* closer to 0 than EPSILON ;-)
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<apeiros_>
rippa: arrr, yes of course.
<apeiros_>
hashpuppy: srsly, what do you think does line 2 do?
<hashpuppy>
f
<hashpuppy>
lol
<hashpuppy>
ok
<apeiros_>
reduce the dope :-p
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<hashpuppy>
but i get such a good price
<apeiros_>
hashpuppy: ROLES is a hash?
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<hashpuppy>
yeah
<apeiros_>
then ROLES.keys.include? role is rather stupid
<hashpuppy>
is there a has_key
<apeiros_>
ROLES.keys gives you an array. searching an array is *much* slower than searching the hash you had in the first place.
<apeiros_>
you can even just use .include?
<apeiros_>
but yes, there's also .has_key?
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<Tasser>
WTF? why did those rake idiots use [] to pass arguments?
<apeiros_>
no idea. you're not the first to complain about it, though
<Tasser>
got me an option parser?
<Tasser>
I'll give rake a boot
<apeiros_>
I heard Thor was built because of rakes shortcommings for a couple of things
<apeiros_>
also a couple of friends seem to like slop
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<apeiros_>
I keep forgetting who wrote it… injekt maybe?
<apeiros_>
yepp, seems to be injekt
<Tasser>
I got three tasks that each take an argument. as simple as possible.
<Tasser>
won't be more of them in the near future
<apeiros_>
getopt then
<apeiros_>
or just plain ARGV
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<Tasser>
ARGV.
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<shevy>
.VGRA
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<shevy>
apeiros_ yeah injekt wrote slop
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<shevy>
next time I need some optionparsing I'll use slop
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<Tasser>
I need to post a form to an url and then get the resulting html - is mechanize overkill?
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<Mon_Ouie>
If it's something simple and you're sure of the id of each field, I'd use Net::HTTP
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<Ownatik>
When redefining a method from a class, do I need to include and extend what the other class is already including and extending?
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<Mon_Ouie>
No, reopening a class won't change its state
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<Ownatik>
thank you
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<Tasser>
Mon_Ouie, WTF. Net::HTTPBadResponse: wrong status line: "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">"
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<Mon_Ouie>
I'd guess that would mean the server returned a response that lacked some fields?
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<Tasser>
likely
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<Tasser>
soooo mechanize.
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<Tasser>
Mon_Ouie, Apache/2.2.15 (Red Hat) Server <- wtf
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<axitkhurana>
Hi, I was trying to set up an account on heroku, and I get an error "/usr/local/heroku/lib/heroku/command/run.rb:1:in `require': no such file to load -- readline (LoadError)" when I run heroku login command
<any-key>
you may want to check out #heroku
<Afal>
or you're requiring a local file
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<axitkhurana>
thanks i'll try #heroku
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<axitkhurana>
apt-get install libreadline-ruby1.9.1 worked for me. thanks though
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<diddlybop>
hi all, what's a good channel for programming help for new programmers?
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<Tasser>
try us
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<diddlybop>
Ok, i'm going through Chris Pine's Learn to Program and am stuck at writing a method for alphabetical sorting without just using .sort or recursion
<diddlybop>
let me get what i have so far
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<Tasser>
diddlybop, pastebin!
<diddlybop>
pastebin? Sorry, I'm new to irc too haha
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<canton7>
paste code into a site such as pastie.org, pastebin.com, gist.github.com, or another one of a huge range of sites, and send link to this channel, rather than pasting your whole code to the channel
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<shevy>
or is your coding style to include a newline after every line of ruby code?
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<diddlybop>
no, idk why that happened in pastebin, it's not like that in my text editors
<diddlybop>
*editor
<Afal>
shevy: flip code you say?
<Afal>
（╯°□°）╯︵ ǝpoɔ
<shevy>
pastebin seems to suck
<shevy>
pastie.org is better
<diddlybop>
will keep that in mind
<diddlybop>
what do you mean by flip the whole code though
<shevy>
it was a joke!
<diddlybop>
oh heh
<shevy>
but if you stumble into too many bugs
<shevy>
try flipping the WHOLE CODE
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<diddlybop>
as in defining the method before getting the word list?
<shevy>
hehe nah
<shevy>
you could do little improvements
<shevy>
like:
<shevy>
break if word == ''
<shevy>
or perhaps
<shevy>
break if word.empty?
<canton7>
let the poor guy get a bit of working code first haha :P
<shevy>
words << word
<shevy>
rather than
<shevy>
words.push word
<shevy>
hey he is close!
<shevy>
he already knows how to define a method
<shevy>
30% of the people who ask questions here don't!
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<canton7>
true, true
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<diddlybop>
that's encouraging!
<shevy>
oh I see something
<shevy>
diddlybop, keep your loops clean
<shevy>
hmm you use like 3 "while"s
<Ownatik>
ok let's say I have 'module Animal' with a method 'run', and 'class Dog' inside the module. from within the run method, I'd like to reference the dog class from an activerecord model, not the one in the same module. How is this possible?
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<shevy>
but I would recommend against using "while"
<shevy>
and 3x while in such short code is a bit odd
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<diddlybop>
ok
<shevy>
Ownatik you can probably scope
<shevy>
def run
<shevy>
Activerecord::Something.new
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<Ownatik>
ty
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<diddlybop>
hmmm still having a problem with the w variable
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<canton7>
diddlybop, yeah not surprised. You're assigning the first item in the words array to it "so its value is a string, inputted by the user", then comparing it to 1 on line 13 (of the pastie link)
<canton7>
strings don't like being compared to ints
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<Ownatik>
Is it possible to 'undefine' a class when redefining a module?
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<MarcWeber>
Using selenium-webdriver can I get the parent element or next sibling of an Element somehow?
<jesperht>
MarcWeber: .parent ?
<Ownatik>
nvm got it
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<diddlybop>
ok fixed a couple things, still is giving me an undefined variable error: http://pastie.org/3342713
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<MarcWeber>
> NoMethodError: undefined method `parent' for #<Selenium::WebDriver::Element:0x00000001d54ac0>
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<Husel>
Hello, I'm a newbie to Ruby and I've written a basic task-list program which selects the first task from each individual task list txt file and creates a new list and sorts the tasks and prints them to another txt file. It's working, but I was just wondering if there are any ways I can improve it since I'm a beginner. http://pastie.org/3342780
<canton7>
diddlybop, w is outside the scope of the alpha_sort function. This means that stuff inside the function can't see stuf that's outside the function. Try swapping lines 14 and 15
<diddlybop>
ok ty
<canton7>
diddlybop, also, on line 19, "else" doesn't take a condition. If the condition passed to the corresponding "if" isn't true, then the else is executed. It's as simple as that
<Husel>
oops, just saw I forgot to close the file at the end
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<canton7>
Husel, there's got to be a better way to do the <=> function
<shevy>
I never thought about that :)
<Mon_Ouie>
Husel: Instead of using (day, month, year) I would use a Date object
<JonnieCache>
actually you could lose the to_s calls because thats implicit in join or +
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<JonnieCache>
so [cat, desc, day, month, year].join "\t"
<lahwran>
would anyone here recommend any other languages than ruby, and if so, what and why?
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<Mon_Ouie>
A language for what? Many languages are interesting to learn
<Husel>
Mon_Ouie: thanks, I'll look it up :)
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<Boohbah>
lahwran: C
<JonnieCache>
Husel: also when you build your Task on line 39 you could just expand the array to form the four method arguments by using the splat operator
<Boohbah>
lahwran: because it has been the most popular language for 30+ years
<Husel>
JonnieCache: how would I do that?
<Boohbah>
lahwran: MRI is written innit
<JonnieCache>
Husel: so instead of calling Task.new(fn, array[0], array[1], array[2], array[3]) you would call Task.ne(fn, *array)
<Husel>
ah wow, much shorter hehe
<JonnieCache>
you would have to do the to_i conversion in the Initialize method instead but thats probably better
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<JonnieCache>
look up the splat operator its kinda weird but powerful
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<Husel>
Hmm, i'm now getting an error: in 'new': undefined method 'div' for "7": String (NoMethodError). http://pastie.org/3342958 It seems to be something to do with the splat
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<merk5>
Can anyone here pls help me with Webistrano?
<Husel>
The line being input was Task1 17722012
<JonnieCache>
Husel: you probably need to explicitly convert the year month and day vars to_i on line 8
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<JonnieCache>
im guessing
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<Husel>
That's fixed it. :) thanks
<JonnieCache>
its passing in strings to Date.new and Date.new isnt presuming to call to_I on them itself
<JonnieCache>
so its calling div (divide) on them, which is a method string doesnt have
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<Husel>
ah, I was thinking the div was something to do with the line.split, oops
<merk5>
Can anyone here pls help me with Webistrano? deploy:setup doesn't seem to work.
<JonnieCache>
when you see NoMethodError in ruby it usually means you have the wrong type. thats how duck typing works
<Husel>
ah okay
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<JonnieCache>
there is no type checking it just tries to call whatever method you tell it to, and if the method isnt there, you get an exception. 9 times out of ten this means you dont have the object you thought you did
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<merk5>
Can anyone here pls help me with Webistrano? deploy:setup doesn't seem to work.
<Hanmac>
JonnieCache: i made me a little rule: if its a generic what you want (like a DateTime or an Integer) then i use respond_to for checking, when you REALY need an specific class (like in an C-Binding) then i use kind_of
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<merk5>
anyone?
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<davidcelis>
Bueller?
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<JonnieCache>
Hanmac: i only put tests in if im writing code intended to be called by someone that isnt me
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<JonnieCache>
if its my own code i just rely on tests to catch any possible type mismatches... is that bad do you think?
<Mon_Ouie>
Even in a library I wouldn't put conditionals, a NoMethodError should be explicit enough
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<Hanmac>
not realy... i write currently only C-Extendions, so the type is bit more important
<Mon_Ouie>
Well, in the case of C extensions, when you get a pointer from an Object, it *must* be what you expect, or it will likely crash — so in that case checking the class of the object is fine
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<JonnieCache>
Mon_Ouie: its always nice to give helpful error messages
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<JonnieCache>
"did you mean this?" for example
<JonnieCache>
although you could argue that if you feel the need to do that then your api is unclear
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<alex__c2022>
what's the best method for upgrading from 1.8.7 to 1.9.3 on a prod ubuntu box? Use RVM?
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<Hanmac>
Mon_Ouie: yeah, and for Generic stuff, like color, i use ducktyping > so excact type is not nessasary :P
<oooPaul>
I've started to really like rvm as the way to manage Ruby in general.
<oooPaul>
I don't even know that Ubuntu has packages for Ruby 1.9.3 yet, so if you're going to build from source anyway, might as well have RVM manage it for you.
<shevy>
hehe
<shevy>
alex__c2022 if all fails, you can always compile into a directory from source, via --prefix, and put a symlink from /usr/bin/ruby to wherever that ruby is
<alex__c2022>
thanks
<Hanmac>
oooPaul, the next version that is comming in April has 1.9.3
<shevy>
ohhhhhhh
<shevy>
ah
<shevy>
ubuntu
<Hanmac>
alex__c2022: if you install it in with /usr/local as prefix, then you must not link anything and your normal systemfiles are safe
<oooPaul>
Hanmac, ah, good to know.
<Hanmac>
oooPaul, you can use the alpha, but i wonld not recoment it to an new user
<oooPaul>
alex__c2022, other thing to consider is whether or not your rails app is the only thing relying on ruby....
<alex__c2022>
oooPaul: was just thinking of that, there are a few sinatra apps running on that box as well
<alex__c2022>
heh
<oooPaul>
We have had issues in our system where although the Rails app was perfectly happy with the upgrade, we were also running a version of puppet that was absolutely dependent on the older ruby...
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<oooPaul>
So rvm really saved our bacon in that regard, since we were able to maintain multiple ruby versions...
<oooPaul>
Mmm... bacon.
<JonnieCache>
always leave the operating system's interpreter for any language well alone
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<JonnieCache>
things like puppet and systems scripts will always rely on it being its boring self
<shevy>
oooPaul mhhhhmm... chocolate bacon ...
<Abundnce10>
is there any way to turn off the notifications when somebody joins/quits this IRC chat?
<JonnieCache>
keep your swanky custom interpreter you use to run your l33t handcrafted code somewhere else
<Hanmac>
Abundnce10 the config depends on your IRC client
<JonnieCache>
(this is a big problem with perl)
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<JonnieCache>
Abundnce10: irssi collapses them all into one line if thats any help
<shevy>
omg
<shevy>
I am looking at PHP code :(
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<Abundnce10>
JonnieCache I'm using FreeNode
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<Hanmac>
thats the server, not the client ...
<shevy>
hehe
<shevy>
Abundnce10 I use Xchat.
<shevy>
you perhaps use some webchat thingy?
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* Hanmac
used pidgin
<shevy>
Hanmac hmm I use pidgin for ICQ ... couldn't get rid of my beloved xchat yet
<JonnieCache>
3.
<JonnieCache>
oops
<shevy>
2.
<Abundnce10>
shevy I'll check out Xchat. Thanks
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<asteve>
i've checked my rake file 20 times now and I keep getting: rake:51: syntax error, unexpected $end, expecting keyword_end
<asteve>
all of the ends are appropriate, any suggestions?
<JonnieCache>
unexpected end doesnt necessarily mean an end is out of place
<JonnieCache>
there could be something else confusing it
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<shevy>
asteve upload code?
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<asteve>
shevy: unfortunately I cannot share it; I guess I could take out the important parts
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<shevy>
lol
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<oooPaul>
I'm using XChat on Ubuntu, it was an available package. :)
<asteve>
shevy: apparently unless' don't have do's :)
<Michael1>
shevy I'm running XChat. Can you explain to me how to mute/reduce the amount of notifications of people joining/leaving the room?
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<shevy>
I think there is a config option for that
<JonnieCache>
i need to find out how to do that for irssi. i want them all sent to the status window
<JonnieCache>
ill probably have to learn its godawful scripting language to do that
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<oooPaul>
IN XChat, I think it's Preferences => Chatting => Sound. But I don't usually have any sound on my laptop enabled anyway (I use it at work) so not sure :)
<shevy>
Michael1, perhaps in xchat.conf the option irc_who_join = 0
<shevy>
oh yeah, that may be better
<shevy>
I think I only used the GUI
<shevy>
and then just kept on carrying that config file with me
<JonnieCache>
irssi actually uses perl doesnt it. i guess thats not godawful.
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<Michael1>
shevy if you are using XChat this is how in disabled the notifications http://xchat.org/faq/#q211
<shevy>
ah ok so it is irc_conf_mode
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<Willejs_>
hi, can anyone have a quick look at my simple problem on stackoverflow?
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<oooPaul>
Looks like you got an answer there... did that not solve it?
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<jfleach>
Hello all, I have an initialize function that causes system calls to expect to hang when spawning processes. It is a very strange problem, where if I comment out 2 global variables, everything works fine, when I start using these variables and the subsquent methods that make use of the vars, everything becomes crazy acting with the spawned process.. anyone ever seen this before?
<jfleach>
err, initialize method wirthin a class
<jfleach>
and I have lots of these vars (they are just filehandles), it happens to be that the new that are used are messing things up
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<jfleach>
regardless if the method is being called or not, this thing gets messed up
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<jfleach_>
not sure what happened there
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<jfleach_>
did someone see the paste?
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<jfleach_>
hmm
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<oooPaul>
Why globals?
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<jfleach_>
because I want to use globals
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<oooPaul>
Globals are bad, mm'kay? :)
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<oooPaul>
And this is a good example. Without seeing where those globals are used in other parts of your code, there's almost no chance I could figure out why those particular lines are problematic.
<jfleach_>
they are not used anywhere else except within system calls
<oooPaul>
What happens if you re-enable those lines, but make the variables @vars instead?
<jfleach_>
well, good idea, what if I chose a new global name
<oooPaul>
If doing that works, then you know it's some interaction with the globals elsewhere. If that *fails*, then you can narrow the cause down to the specific TempFile thing.
<jfleach_>
the tempfile I have debugged, it is just printing out to the current working directory with the path
<jfleach_>
and have a prefix of whatever I want on it
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<jfleach_>
I realize this code is ugly, not ruby-style, etc, but I inherited it and I dont feel like changing it all around
<jfleach_>
let me try making em not globals, but I doubt it has anything to do with it
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<burgestrand>
burg
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<jfleach_>
changing them to @vars did nothing
<jfleach_>
same problem
<andreim>
hey, what are the ways of executing shell commands? and any way of getting in a string the alternative output (like wget) that we usually have on the terminal?
<luckyruby>
I guess i can do string[0,1] + 'x' + string[2,-1]
<oooPaul>
luckyruby, I think you'll need to create the method yourself if you want to do it...
<oooPaul>
But easy enough to implement.
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<luckyruby>
hmm, guess -1 doesn't work with strings
<oooPaul>
def replace_at(pos, char); [string[0...pos], char, string[pos+1..-1]].join; end
<luckyruby>
oh. '..'
<clockwize>
is it possible to get a list of methods a class defines (not inherits from its super)?
<oooPaul>
Yeah, some variant of that works nicely to return a new string object and leave the original untainted.
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<luckyruby>
oooPaul: would I monkey patch String with that method?
<oooPaul>
You could.
<luckyruby>
where would be a good place to put that in a rails project?
<oooPaul>
clockwize, Kinda... depends on if yo're talking instance or class methods.
<oooPaul>
luckyruby, config/initializers...
<clockwize>
both
<oooPaul>
For class methods, you could do: MyClass.methods - MyClass.superclass.methods and find only those methods MyClass has "extra" of.
<oooPaul>
Not perfectly accurate, but might get you halfway there.
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<Hanmac>
MyClass.methods(false) shows without super
<JonnieCache>
clockwize: if you only need to do it once then pry can show you that interactively
<JonnieCache>
but yeah passing false does the trick
<clockwize>
ah, cool
<clockwize>
didn't know methods took a parameter :p
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<oooPaul>
I didn't either. Woot. :)
<Hanmac>
its a secret
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<Ownatik>
ok let's say I have 'module Animal' with a method 'run', and 'class Dog' inside the module. from within the run method, I'd like to reference the dog class from an activerecord model, not the one in the same module. How is this possible?
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<oooPaul>
Ownatik, ::Dog?
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<oooPaul>
Are you saying you have two classes named Dog, one in the Animal namespace and one not?
<v0n>
is there a smarter way to do ary.push(sth).uniq!
<oooPaul>
Or are you asking how to make the Dog class in the Animal namespace be an ActiveRecord class?
<v0n>
it means insert in the array if not already present
<oooPaul>
ary |= sth
<JonnieCache>
oooPaul: you sure? ive not seen that before
<v0n>
oooPaul, did you try it?...
<JonnieCache>
hmm apparently yes you can do that
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<oooPaul>
:D
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<JonnieCache>
i wonder how it works under the hood
<oooPaul>
ary = ary | sth :)
<JonnieCache>
ahhh that makes more sense
<JonnieCache>
i meant more how its implemented
<oooPaul>
Although that way actually fails.
<oooPaul>
Hmm. That is interesting.
<JonnieCache>
because there is the Set class
<JonnieCache>
which is actually a hash
<oooPaul>
Wait, no, that's because I didn't type in in right.
<v0n>
yep, sth needs to be an array as well
<oooPaul>
ary |= [sth]
<oooPaul>
That's better.
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<oooPaul>
ary = ary | [sth] # same thing but verbose.
<JonnieCache>
i wonder how it performs compared to Set. probably better. Set is just a hack on top of Hash and doesnt perform that well
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<oooPaul>
Can't be any worse than appending the new object and calling uniq! :)
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<JonnieCache>
yeah thats definitely not going to be good
<Ownatik>
oooPaul, my bad
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<oooPaul>
Ownatik, did you get it working?
<Ownatik>
I meant I have two classes dog, an activerecord one, and another inside the module Animal
<oooPaul>
Ah, right.
<Ownatik>
now from a method inside the module Animal, I want to reference the activerecord class
<oooPaul>
I think it's just a matter of referring to the ActiveRecord one as ::Dog, I think... Or something to that effect.
<Ownatik>
k ill give it a try
<Ownatik>
thanks
<oooPaul>
I'm sure there's a way to 'anchor' the namespace in the syntax.
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<Ownatik>
oooPaul, this is it.
<Ownatik>
::Dog references the activecord class
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<v0n>
oooPaul, isn't there a similar syntax but for ary.delete(sth)? :D
<v0n>
something like [3] &= ~[1]
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<v0n>
but this won't work ^^
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<oooPaul>
v0n, yea -=
<oooPaul>
x = [:a, :b]; x -= [:a] => [:b]
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<v0n>
oooPaul, logic, thnks ;)
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<v0n>
what's the best practice to add verbosity in a script?
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<llaskin>
https://gist.github.com/1774199 if upon completion of doing "stuff" at line 3, I want to break out of the each, but remain inside the method to "do more stuff" how can I break out of the each without breaking out of the function completely?
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<oooPaul>
break
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<oooPaul>
llaskin, the keyword is 'break'. :)
<llaskin>
thanks
* llaskin
feels retarded
* oooPaul
giggles.
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<Kyle__>
If you dump a hash with YAML.dump, does it convert the whole thing in memory?
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<oooPaul>
Kyle__, how else would it do it?
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<Kyle__>
oooPaul: If you're putting it streight to disk it would be nice if it didn't.
<Kyle__>
I thought there was some syntatic type sugar in yaml to do that.. ahh well.
<llaskin>
Kyle__: check out #yaml
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<oooPaul>
Kyle__, Ah, I see what you were getting at.
<oooPaul>
YAML.dump just returns the string, though, so by definition it's in memory.
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<Kyle__>
oooPaul: I've got a rather large hash I wanted to dump. all in memory would cause the poor box to swap hard.
<JonnieCache>
data and databases are the bane of my existance
* oooPaul
nods.
<JonnieCache>
so much time wasted trying to make activerecord do what i want...
<apeiros_>
don't use AR then?
<oooPaul>
Not sure YAML is such a great way to store a very large hash anyway, no?
<JonnieCache>
apeiros_: ar isnt the problem really. its my unreasonable demands on it
<oooPaul>
JonnieCache, what do you want it to do that it doesn't do? :)
<JonnieCache>
oooPaul: class table inheritance
<apeiros_>
JonnieCache: meaning AR is the wrong tool.
<apeiros_>
if you've got demands that are unreasonable with AR, you've got two things you can change - your demands, or AR.
<apeiros_>
knowing AR, I tend to the latter.
<JonnieCache>
lol ive been trying to change ar and thats why im upset
<oooPaul>
JonnieCache, Ah, hmm... :)
<Kyle__>
oooPaul: I was doing a quick and dirty little test calculation, and YAML happily ignores default functions in hashes, where Marshall chokes on them.
<JonnieCache>
when will I learn...
<apeiros_>
I meant change as in replace :-p
<oooPaul>
Kyle__, Well, that's a step in the right direction, then. :)
<Kyle__>
Heh. AR is great if and only if you play like it wants you to.
<Kyle__>
I guess it's kindof like a cat in that way...
<oooPaul>
I'm actually surprised I managed to get AR to support a legacy database I'm using with very little fuss...
<apeiros_>
anyway, bedtime for me. n8
<Kyle__>
night.
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<Mosselman>
Hi guys. I have a sinatra app running, I want to make a call to a json web service from it and then relay it (post) to another web service. How can I do this? I can't figure it out through google.
<JonnieCache>
you need to make some http requests
<JonnieCache>
one to get the json
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<JonnieCache>
then you need to construct the second request to submit it to the second service
<JonnieCache>
there are many ways to do http requests, may i suggest httparty
<Mosselman>
httparty, is that in the standard libs?
<JonnieCache>
no its a gem
<JonnieCache>
theres net:http in the stdlib but its renowned for sucking
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<JonnieCache>
also in the long run you will want to do this in a background process, not as part of the sinatra request handler. if one of the other web services times out or something, it will tie up your server causing it to grind to a halt
<JonnieCache>
but thats another consideration
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<MrKeuner>
hello, am I safe installing apps using gem? does gem keep track of security updates?
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<patrick99e99>
Can anyone recommend any articles that focus on the importance of writing small methods vs big ones
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* Hanmac
is building an swigfree wxRuby ...
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<Hanmac>
hm no reaktion ... so is that what all want?
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<tsd_usa>
Hi Guys. Is there a way to get the nice "preview window" in vim win doing omni-completion for ruby?
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<_kW>
Hello! How can I add options to "%r{foo}" regexp literals? Like this? "%r{foo}i"?
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<_kW>
Hmm... nobody there?
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<burgestrand>
_kW: not sure if ruby’ll allow that syntax, but you could add a modifier to the beginning of the pattern.
<burgestrand>
_kW: %r{(?i)foo}
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<burgestrand>
(you can turn off options in a similar way with (?-i) for example)
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<_kW>
burgestrand: thank you, that will suffice
<burgestrand>
:)
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<tsd_usa>
is anyone using vim here?
<oddmunds>
i am
<tsd_usa>
how to get the nice "preview window" in vim win doing omni-completion for ruby?
<spectre^>
Yeah I use vim
<tsd_usa>
how can you have the preview window which include some useful documentation for the function being used
<Mosselman>
is 'net/http' a gem?
<herval>
mosselman: afaik it's not...
<herval>
it's part of ruby's stdlib
<Mosselman>
hmm, my 1.8.7 is giving me 'false' when I do require 'net/http'
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<laen_>
Mosselman: That's just a return value, it's not an exception.
<Mosselman>
laen_ thanks :) realised my dumbness
<herval>
:)
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<shevy>
Mosselman usually when "false" is returned, when you require something, it means that it is already included
<Mosselman>
yeah that was the problem :)
<shevy>
I have that in IRB a lot. I kinda require 30 different modules in it, often enough I forgot which ones
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<yoklov>
oh, i was wondering about that earlier today
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<shevy>
oh man
<shevy>
I hate php
<shevy>
I tried to write something today but I just can't :(
<yoklov>
i have to write php sometimes at work
<yoklov>
its better than what i usually have to write in though
<yoklov>
coldfusion
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<shevy>
ah well
<shevy>
I'd honestly rather learn rails ... then at least I could write in valid ruby code
<shevy>
and make use of things I write there too, even without rails
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<yoklov>
yeah, i don't know rails at all.
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<yoklov>
how do people typically handle unit testing for programs which just perform IO
<yoklov>
i'm probably overthinking this.
<sdferfx>
Hi. I have to write an HTTP REST API in Ruby. Just a little one for now, like two calls. What do you recommend I use for this? Rails? I am new to the Ruby ecosystem.
<zaargy>
sinatra
<sdferfx>
but I don't really want to use Rails if I don't have to. I just get bad vibes from it.
<zaargy>
sdferfx: that was directed to you btw
<zaargy>
you want sinatra. it's like a five min job in sinatra.
<sdferfx>
zaargy, I saw it and have looked up Sinatra, it looks good, thanks
<sdferfx>
Just need to see how to specify different HTTP operations on a route and I'll be set ;)
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<Mosselman>
I am having errors in a ruby (sinatra) app: invalid byte sequence in US-ASCII