<FromGitter>
<jwoertink> it's possible for this query to not return any results.
<FromGitter>
<jwoertink> I saw the `query_one` method, but when it didn't find a record, it would blow up. So after adding catches and stuff, it came out to about the same mess
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<FromGitter>
<crisward> Use query_one? It returns null if not found
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<FromGitter>
<schoening> Hehe, I put crystal on my cv :p
<FromGitter>
<sdogruyol> @schoening congrats :)
<FromGitter>
<sdogruyol> Also add it to your Linkedin e.g :P
<FromGitter>
<schoening> Ty, got two job interviews I am gonna go to
<FromGitter>
<schoening> oh yeh, forgot about getting linkedin
<FromGitter>
<schoening> Half the people say to get Linkedin and the other half says its useless
<FromGitter>
<sdogruyol> It may be useful depending on your country
<FromGitter>
<schoening> I'll get one then. Can't hurt
<FromGitter>
<idchlife> I have linkedin blocked at my country :D
<FromGitter>
<sdogruyol> where's that?
<FromGitter>
<idchlife> russia
<FromGitter>
<sdogruyol> that's weird didn't know russia blocking stuff
<FromGitter>
<idchlife> oh, many site were blocked
<FromGitter>
<schoening> Haha! No the russian government is known for its freedom :p
<FromGitter>
<idchlife> Ahaha :smile:
<FromGitter>
<schoening> Do you have a russian only version?
<FromGitter>
<schoening> Like, something similar
<FromGitter>
<sdogruyol> i always thought that Turkey is leading the blocking race lol
<FromGitter>
<schoening> What about China? and you said you got some stuff blocked too @sdogruyol right?
<FromGitter>
<sdogruyol> we got lots of stuff blocked even imgur lol
<FromGitter>
<schoening> The only site I think we got blocked here in Denmark is piratebay :p
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<FromGitter>
<schoening> So do you use any proxy stuff or is that very risky?
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<FromGitter>
<sdogruyol> @schoening even proxies are blocked here
<FromGitter>
<sdogruyol> TunnelBear, Zenmate e.g all blocked
<FromGitter>
<sdogruyol> such a shame
<FromGitter>
<schoening> Wow
<FromGitter>
<schoening> I saw a Vice documentary about Cuba. They basically download terrabytes of internet stuff and smuggle it in on usb drives and sell that to the people there
<FromGitter>
<schoening> Like tons of youtube videos and such stuff
<FromGitter>
<schoening> And sell it
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<FromGitter>
<sdogruyol> hehe
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<FromGitter>
<crisward> Pretty sure we don't have anything blocked here... (uk). We just get spied on.
<FromGitter>
<schoening> I read that is going to increase even more now?
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<FromGitter>
<schoening> Is there a way to take a screenshot with crystal ?
<FromGitter>
<sdogruyol> Should be possible via a C library
<FromGitter>
<crisward> On mac their is a cli command you can call out to for screen shots
<FromGitter>
<crisward> `screencapture test.jpg`
<FromGitter>
<schoening> Cool. I'm on Linux tho, I guess I go with a C library. Is this stuff gonna get native support or is it gonna be more like in Node.js where you call ffi ?
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<FromGitter>
<crisward> used it a while back. Created a folder of timestamped images so I could work out my timesheets at the end of the day. You can create a little quicktime video of your working day sped up. Worked for a bit, then stopped using it.
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<FromGitter>
<schoening> Neato!
<FromGitter>
<schoening> What I need is more of a take screenshot in memory, analyze pixels, do something. I wrote a crappy bot many many years ago, and was thinking of re-doing it, but in Crystal hehe xD
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<FromGitter>
<bcardiff> It depends. right now no. but after https://github.com/crystal-lang/crystal-db/pull/44 DB will allow to create straight connections again so you can choose to use other connection pool.
<FromGitter>
<jwoertink> When doing something like `MYSQL = DB.open(CONNECTION_STRING) ` in some shared module, or top level of your app, at what point would you call `MYSQL.close`?
<FromGitter>
<fridgerator> in Crecto i dont ever call `close`, the connection seems to close though when the application exists
<FromGitter>
<jwoertink> Interesting. You haven't seen any instances of hanging connections, or memory leaks?
<FromGitter>
<fridgerator> not yet, not to say it couldn't happen
<FromGitter>
<jwoertink> gotcha
<FromGitter>
<jwoertink> I guess you could always add a `at_exit` block if anything
<FromGitter>
<fridgerator> yeah I just saw that, didn't know it existed
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<FromGitter>
<bcardiff> Well, DB does nothing implicitly in that topic. When the Database (ie: pool) is GC-ed, the connection will be GC-ed, which will end up GC-ing the sockets, that have a `#finalize` method to close the socket.
<FromGitter>
<bcardiff> If the blockess DB#open overload is used, I would suggest calling `db.close` at some point :-P. Or try to use the block version which wraps evrything with a begin/ensure.
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<FromGitter>
<crisward> @jwoertink I never use db.close and my mysql connection closes on app end, I've checked the connection list in the database and all connections are closed. I believe mysql times out the connections after a while anyway, crystal-db takes care of reconnecting I believe.. though @bcardiff wrote this, so he can probably speak with more authority on this. Though I think it's something you shouldn't need to care about u
<FromGitter>
... sharing the db with another app and running low on connections.
<FromGitter>
<jwoertink> I'm definitely sharing my db with another app. I'm just going to write a macro to handle opening and closing the connections to avoid issues.
<FromGitter>
<crisward> There are so url params so you can set how many connections you want the pool to use.
<FromGitter>
<jwoertink> I was just looking for that
<FromGitter>
<crisward> `?max_pool_size=50&initial_pool_size=5&max_idle_pool_size=5&retry_attempts=3` add something like this to your usual db url
<FromGitter>
<jwoertink> oh sweet! Thanks. That helps
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<FromGitter>
<tekjar> Hi. Is parallelism going to change APIs exposed to user alot?
<Papierkorb>
No one can be sure, but the fiber stuff probably won't change (much?), so probably not
<RX14>
it might not change the APIs but your use of them might have to change to take concurrency into account, unfortunately
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<crystal-gh>
[crystal] asterite pushed 1 new commit to master: https://git.io/vyay6
<crystal-gh>
crystal/master 5b32e46 Ary Borenszweig: Fixed #4125: CodeGen: __crystal_raise fun is expanded with double body
<FromGitter>
<tekjar> RX14: You mean user need to consider redesigning his project because threads might run on different cores?
<RX14>
i wouldn't go as far as redesigning
<RX14>
but you might need to for example put locks around shard array accesses
<RX14>
shared*
<FromGitter>
<tekjar> Ohhh
<RX14>
anything with shared memory would need to be considered for problems
<FromGitter>
<tekjar> Got it
<RX14>
go seems to manage fine...
<RX14>
I think using channels will have to be a lot more common maybe
<RX14>
not sure how it'll turn out
<FromGitter>
<tekjar> Yep. I noticed the increasing adoption of CSP style
<FromGitter>
<tekjar> Did you guys ever consider releasing 1.0 with out parallelism?
<RX14>
no
<RX14>
adding parellelism would be a breaking change
<RX14>
well, at least having it be on-by-default
<RX14>
so it's much better to get it done before 1.0
<BlaXpirit>
good reason to justify 2.0 :p
<RX14>
neither rust or go have had a 2.0 because they've got 1.0 right first try
<RX14>
whereas swift is on v4 by noq
<RX14>
now*
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<RX14>
so, i'm not sure what the correct approach here is
<FromGitter>
<tekjar> Did they :P
<RX14>
i think we should get 1.0 right
<RX14>
and really not have a 2.0 for a long time
<RX14>
until we have a big big stash of things that we want to change
<BlaXpirit>
sounds good
<BlaXpirit>
soo how it worked out for python though
<BlaXpirit>
see*
<FromGitter>
<tekjar> Cool. I love what rust has done. It makes a lot of sense to use it on microcontrollers, low memory devices. Wish crystal could do the same on server side
<FromGitter>
<tekjar> What it took me a month in rust took a week in crystal
<RX14>
well i imagine that's part of the learning curve
<FromGitter>
<tekjar> Alot of knowledge from past implementation helped though
<RX14>
but crystal's learning curve is less for sure
<FromGitter>
<tekjar> But also I never wrote any crystal or ruby code before
<RX14>
i believe that rubyists find it *harder* to start in crystal than anyone else
<wmoxam>
wow, 0.21.1 really fixed a lot of issues I was having in my Liquid port
<BlaXpirit>
RX14, i wouldn't say so, just different difficulties
<BlaXpirit>
and if those rubyists would just read the docs before guessing, that could be alleviated
<RX14>
well rubyists tend to still retain the dynamically typed mindset
<RX14>
it's easy to say "read the docs"
<RX14>
there's a lot of rubyists that haven't used a statically typed language before
<RX14>
and I think they find it hard
<FromGitter>
<tekjar> If it makes sense, what safety features of rust would you like to adopt in crystal?
<RX14>
i haven't used rust so I can't really comment but I think any safety we adopt would have to be easy on the learning curve
<FromGitter>
<tekjar> I don't know crystal enough to comment about safety issues but I love union types and the way they preven Nil exceptions in runtime
<RX14>
"no segfaults" would be possible in crystal without much change I think
<RX14>
well
<RX14>
no segfaults outside of unsafe code
<RX14>
but ehh
<FromGitter>
<tekjar> Hehehh
<RX14>
it seems kinda pointless to introduce unsafe in crystal
<FromGitter>
<tekjar> Unsafe DSLs
<FromGitter>
<tekjar> Do you have any plans of making case statements exhaustive?
<FromGitter>
<tekjar> Making sure that user covered all possible cases if not used an else statement during compile time
<RX14>
well that happens in the return value for case statements (iirc)
<RX14>
doesn't work for enums because you can technically create invalid enum values
<RX14>
but for branching on union types
<RX14>
it does work
<RX14>
but it's just evaluationg whether nil is in the return type union
<FromGitter>
<tekjar> Cool.
<FromGitter>
<tekjar> RX14: If you can create some easy issues in `crane` with `easy` tag , it would be awesome (if it doesn't slow down your workflow)
<RX14>
i'd prefer to get it fleshed out first
<RX14>
not much point in opening issues when the core framework isn't there yet
<FromGitter>
<tekjar> Cool. Makes sense
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<FromGitter>
<tekjar> Is is possible to extract `pkid` during `when` in that example?
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<RX14>
@tekjar create a getter
<RX14>
crystal is "pure OOP" in that you can only send messages to objects (i.e. call methods on them) which means you need a method which returns @pkid
<RX14>
which is what the getter macro does
<FromGitter>
<jwoertink> Has play.crystal-lang stopped working in FireFox for anyone else?
<FromGitter>
<tekjar> @jwoertink It doesn't work for me on chrome
<RX14>
it stops working for random for random people at random times
<RX14>
clear your cookies
<RX14>
it fixes it
<FromGitter>
<tekjar> RX14: I understand that I could do getters. By saying "pure OOP" you mean that destructuring is not idiomatic in crystal?
<FromGitter>
<jwoertink> ah, the cookie monster. yeah, that fixes it
<RX14>
no, not destructuring
<RX14>
we don't have much pattern matching in crystal
<RX14>
just use struct.pkid
<RX14>
isn't that short enough?
<RX14>
with destructuring it would just be pkid instead of puback.pkid
<FromGitter>
<tekjar> It's simple for this case maybe. If I have a struct with say 5 members, it looks better with destructuring at `when` directly
<FromGitter>
<tekjar> Instead of calling 5 getters inside `when`
<RX14>
it just means less instance variables floating around...
<RX14>
a bit more typing isn't a bad thing
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<FromGitter>
<tekjar> Yep. But some paradigms feel much better. Not that I can't take the usual route :)
<FromGitter>
<tekjar> Personal opinion
<RX14>
for sure pattern matching is cool
<RX14>
but it doesn't really fit with crystal's feel I think
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<RX14>
and it's usually pretty clean even without it
<RX14>
if you can come up with a *really* good usecase for it i'm sure it'll be discussed
<FromGitter>
<tekjar> I will. When I'm more comfortable with crystal :)
<FromGitter>
<tekjar> It's just been a week
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