ChanServ changed the topic of #ruby-lang to: Ruby 1.9.3-p125: http://ruby-lang.org | Paste >3 lines of text on http://pastie.org or use a gist
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<macmartine> I am accessing the data of a huge binary file that I want to copy down. I assume it's best to copy it in chunks something like https://gist.github.com/1945953 ?
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<jmontross> pry is nice - but cant get it ito rails app from dependency problem… conflicting gems
<macmartine> I'm trying to write binary data to a file but hitting this error https://gist.github.com/1946204 -- how can i fix that?
<lianj> 'wb' ?
<macmartine> lianj: are you talking to me?
<macmartine> oooh
<macmartine> looksl ike that's working… thanks!
<lianj> :)
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<jackhammer2022> hi all
<jackhammer2022> any suggestions for a ruby graphing library
<jackhammer2022> i need to generate a png out of my ranking data for songs
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<countskm> a little off topic but just curious what peoples former language experience is in the channel? mine academic c/c++/java and perl pro
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<zenspider> countskm: yes
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<zenspider> jackhammer2022: there are a lot of options. the easiest is prolly using a web service like google's
<jackhammer2022> zenspider: i mean some gem
<jackhammer2022> so that i can do it offline
<zenspider> who's offline these days?
<jmontross> countskm: i had used php and linden scripting language prior to using ruby… i doubt this is typical.. maybe php to ruby is common
<jmontross> also html/javascript/css — mostly web things prior to ruby
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<jackhammer2022> i am :) i am just behing a wall and i am doing numeric computations
<jackhammer2022> *behind
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<Rakko> Hello! How does `ary1 - ary2` determine whether two members are the same? More to the point, how I can make it so that `ary1 - ary2` ignores certain fields in elements?
<Rakko> I've tried defining <=>, ==, and eql? on the elements' class, to ignore those fields; but it didn't work.
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<zenspider> Rakko: looks like it calls hash and eql? in ruby19
<zenspider> I made a basic test using a subclass of BasicObject and defined method_missing on it
<Rakko> can I see?
<zenspider> easy enough to do yourself.
<Rakko> ok... I see that implementing hash is what does the trick
* Rakko looks up how to do that
<zenspider> it's prolly doing exactly what set does, build a hash and map
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<Rakko> ok, so maybe I could use a set
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<ryanf> is there a way for a gem to have a binary component that's optional?
<ryanf> like, depending on the libraries the system has installed, target platform, or whatever
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<erikh> ryanf: the sqlite gem does this IIRC for windows
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<countskm> zen and jmon - cool
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<dajmon> I am a master’s student performing research at the University of Texas at Austin School of Information. I am observing the channel as part of a study on Ruby culture (IRB Study Number 2011-12-0078).
<dajmon> I am not collecting any identifying information. Please feel free to message me if you are interested in participating in a short interview.
<dajmon> You may contact James Howison, the Principal Investigator, via e-mail at jhowison@ischool.utexas.edu or phone at (512) 232-9219 with questions, comments, or suggestions.
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<rue> Guys, initiate protocol 5
<deryl> initialize(6-1)
<erikh> some one set us up the survey
<deryl> all your surveys are belong to us
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<dajmon> no need for protocol 5
<lake> i would like to create some code with ruby to determine whether a given image of a head was bald or not. i was considering a naive bayes classification. would some other algorithm be better suited?
<lianj> lake: hehe, what a usecase
<lake> just for kicks
<lake> and learning of course!
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<zenspider> sexp_processor 3.1.0, minitest 2.11.3, hoe 2.15.0 released today
<erikh> busy boy
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<dominikh> kith: got your problems sorted out?
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<kith> yeah
<dominikh> great
<kith> :)
<kith> cinch docs should perhaps be a little more clear
<dominikh> kith: on what?
<kith> on the prefix part
<dominikh> heh, yeah
<ianm_> any tips on what tech to use for adding a thread to a linux-only ruby C module?
<ianm_> which library for threads/mutexes
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<postmodern> ianm_, definitely do not use 1.8.7
<ianm_> postmodern: it needn't interact with ruby in the thread, only reading from a webcam
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<zenspider> rawr
<zenspider> anyone want some booze? I have plenty
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<kith> dominikh: is it possible to make cinch reload plugins everytime its used?
<dominikh> kith: the upcoming version does allow for unloading handlers, and by extension you can use the usual hacks to reload whole classes, but there is nothing built-in or documented on that yet as it's a work in progress
<kith> i see
<kith> would be convinient while writing plugins
<dominikh> which version of cinch are you using?
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<kith> 1.1.3
<dominikh> okay
<kith> so far very nice tho
<dominikh> :)
<kith> you're spoiling generations of nerds to come though... all writing their initiation bots with cinch :D
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<dominikh> kith: to be honest I doubt it. a) blogs are the new hello world, not IRC bots :( b) the naive still write their own, buggy IRC libs
<kith> *shrugs* been kidding ;)
<dominikh> been hoping :P
<kith> hehe
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<kith> now combine a peg parsing lib with cinch... could become interesting :D
<kith> maybe i can make my cinch bot do math? :D
<dominikh> just send your stuff through google or wolfram APIs :P
<kith> hmmm
<kith> geez
<kith> google actually knows "square root 9"
<kith> or 3 * pi
<dominikh> sure
<zenspider> it's had a built in calculator for a long time
<dominikh> it also knows "3GB / 5 minutes in KBps"
<dominikh> and most physical constants
<kith> i thought it can only do simple computation
<kith> like + - * /
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<banistergalaxy> zenspider: sup spides
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<yorickpeterse> Morning
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<TTilus> kith: ive used google as currency converter for dunno-how-log
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<TTilus> tenderlove made my day, again
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<senthil> is there a way to change default failure messages in rspec?
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<Silex> how can I do "x.send(:bar) ||= 123"
<Silex> "x.bar ||= 123" works but not the send version
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<andrewvos> Silex: What's not happening?
<andrewvos> Silex: Are there any errors?
<Silex> yntaxError: (irb):37: syntax error, unexpected tOP_ASGN, expecting $end
<andrewvos> Silex: Probably because you're trying to assign something to a messsage response
<andrewvos> Silex: Remove th eequals
<Silex> but I want to assign
<andrewvos> Silex: ||= assigns the value on the right to the variable on the left if the value on the left is null
<andrewvos> Silex: x.send(:bar, value)
<andrewvos> Silex: You would have to assign bar to a var
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<Silex> x.send(:bar, x.send(:bar) || 123)
<Silex> that'd work I guess
<andrewvos> Or, x.send(:bar=, x.send(:bar) || 123)
<andrewvos> haha yes
<Silex> right, ok
<rippa> >||= assigns the value on the right to the variable on the left if the value on the left is null
<rippa> or false
<Silex> thanks
<andrewvos> Hey what's a ruby gem that I can use to ssh in to something and type in the password?
<andrewvos> Also, I hate myself for doing this, but I'm working with a box provisioned by puppet and I can't use public key authentication
<andrewvos> DISCLAIMER: ^
<andrewvos> Oh wait, I suppose I don't *need* a gem
<bnagy> expect?
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<andrewvos> bnagy: Hmmm https://github.com/net-ssh/net-ssh
<andrewvos> bnagy: Yeah that would work, but I don't like having shell scripts in my ruby code too often :/
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<roadkith> guys, how would i select a randrom row in sequel?
<roadkith> something like "SELECT * FROM table ORDER BY rand() LIMIT !"
<roadkith> wihtout actually writing it in sql
<ddfreyne> roadkith: that depends on the SQL dialect... which one are you usinG?
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<roadkith> ddfreyne: i was hoping to make it dialect agnostic
<roadkith> i'm using sqlite for developing but it will run on mysql later on
<ddfreyne> AFAIK there is no standard SQL for that
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<roadkith> hmm maybe something like result = DB.select(rand DB.size)
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<roadkith> if DB would behave like an array
<andrewvos> roadkith: Would fail if items get deleted
<andrewvos> roadkith: If you reference a deleted item I mean
<roadkith> hmm
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<slyphon> injekt: yo, what happened to cinch?
<dominikh> slyphon: yo, it's still there.
<dominikh> not injekt's project anymore though.
<slyphon> ah, i followed the link and got the github catoctopus
<dominikh> github.com/cinchrb/cinch ;)
<slyphon> ah, right on
<slyphon> dominikh: it cinch better than a poke in the eye with a sharp stick?
<slyphon> is*
<slyphon> sorry, i meant jbot
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<dominikh> never looked at jbot, but if it's as good as poking your eye with a sharp stick, then yes, Cinch is better.
<slyphon> yay!
<slyphon> i've written several irc clients (protocol level), and bots, and I hate it
<dominikh> but then I am biased, so Cinch is better than winning the lottery.
<slyphon> it's usually like the first thing i do in a new language when i want to "do something fun"
<slyphon> hah
<slyphon> well, i'll report back on how eye injurous it is :)
<dominikh> great
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<yorickpeterse> slyphon: Cinch does have a missing critical feature though
<slyphon> a built-in chuck norris plugin?
<yorickpeterse> No, bloat
<slyphon> ah
<judofyr> isn't that the same?
<yorickpeterse> In a way
<slyphon> judofyr: chuck norris doesn't bloat
<slyphon> see, if i had a built-in chuck norris plugin, that would have been funny
<slyphon> -ish
<judofyr> ish
<slyphon> funny is overrated
<slyphon> and other things i tell myself when i bomb
<slyphon> hah
<slyphon> one thing cinch appears to be missing is unittests
<slyphon> which means it's probably a decent irc client lib
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<slyphon> because seriously, who has time to write specs for an irc bot
<dominikh> :D
<slyphon> ;)
<dominikh> well, I did start writing tests, but yeah, they're rather low on the priority list
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<slyphon> as soon as someone pays you to do it...
<dominikh> that'd be neat
<slyphon> not that i'm offering
<slyphon> ;)
<dominikh> darn
<slyphon> hahaha
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<yairgo> trying to install 1.9.3-p125 from source on ubuntu. ./configure is giving me an error. here is the output https://gist.github.com/1950472 and here is the conf.log file https://gist.github.com/1950526 if anyone can help.
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<darix> yairgo: looks like your awk crashed
<darix> or "cat"
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<darix> though i would bet on awk
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<yairgo> :/
<yairgo> darix it was less l33t than that, I opened it with gedit lol
<darix> i wonder what gedit has to do with it
<darix> but well
<darix> the awk crashed at the end of the configure run
<yairgo> oh i thought you meant the entire file didn't get copied to the gist
<yairgo> darix any clues on what I can do to make it work?
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<yairgo> darix been trying to get this working for 4 hours, 2 yesterday and 2 today. Haven't had any luck withgoogle either :(
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<darix> yairgo: does it always crash like that?
<darix> or different errors?
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<yairgo> looks like it crashes the same way
<darix> i guess ubuntu supports different awk interpreter and manages the bin/awk link via update-alternative
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<darix> you could check e.g. for gawk/mawk
<darix> and toggle between using update-alternative --config awk
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<yairgo> will try that in a moment, there is a fire drill in the building
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<yairgo> darix I don't know what you mean by toggle between using update-alternative --config awk, or is that just a command I can run?
<darix> a command you run
<yairgo> it says 2 choices for the alternative awk, /usr/bin/gawk is set to the default it appears
<yairgo> /usr/bin/awk isn't even in the list
<dominikh> obviously it isn't, awk points to the choice you make
<yairgo> /usr/bin/gawk auto mode, /usr/bin/gawk manual mode and /usr/bin/makw manual mode are the only options..?
<yairgo> should I try setting it to mawk?
<dominikh> well, considering that's what darix suggested..
<darix> yairgo: so try mawk
<yairgo> dominikh my bad... I was just making sure
<darix> moin dominikh
<dominikh> morn
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<yairgo> using mawk worked. thanks for the help
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<h4y4shi> How do I access an array that is inside another array?
<h4y4shi> I mean I am sorry let me re explain.
<darix> h4y4shi: a[1][2]
<h4y4shi> How do I access an object that is inside an array that is inside an array?
<judofyr> h4y4shi: a = [[1, 2], [3, 4]]; a[0][0] == 1; a[1][0] == 3
<h4y4shi> Okay that explains it thank you
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<dajmon> I am a master’s student performing research at the University of Texas at Austin School of Information. I am observing the channel as part of a study on Ruby culture (IRB Study Number 2011-12-0078).
<dajmon> I am not collecting any identifying information. Please feel free to message me if you are interested in participating in a short interview.
<dajmon> You may contact James Howison, the Principal Investigator, via e-mail at jhowison@ischool.utexas.edu or phone at (512) 232-9219 with questions, comments, or suggestions.
<h4y4shi> Where did you get your bachelors?
<h4y4shi> I live in Texas UT is a nice school
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<h4y4shi> if you put an object in array, why does it have to be nested? I came to this conclusion by not being able to .concat an object into an array, I am only able to push an object into an array.
<cirwin> h4y4shi: concat combines two arrays into one
<cirwin> you want .push, or <<
<h4y4shi> Doesnt push always nest though?
<cirwin> no
<cirwin> [1,2,3].push 4
<dominikh> huh? an array is a collection of objects. how can an object be in an array without being in it?
<judofyr> h4y4shi: an array is a list of values. push adds one object to the list. concat adds all the values in one array into the other array.
<h4y4shi> so if I push an object to an array why is it always nested then?
<dominikh> it's not...
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<cirwin> h4y4shi: could you paste what you're seeing?
<dominikh> [1,2,3].push(4) # => [1, 2, 3, 4]
<h4y4shi> Okay I will
<judofyr> h4y4shi: example of when it becomes nested? it's only nested if you push other arrays onto the array.
<Mon_Ouie> Nested would be [1, 2, 3, [4]]
<cirwin> https://gist.github.com/154fbaa613e1951418fe <-- what you should see
<h4y4shi> @grasses.push(GrassTile.new(self))
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<dajmon> h4y4shi: I got my bachelor's at pitt :)
<h4y4shi> grasses is an array, and GrassTile is a class
<dominikh> and what makes you believe it's nested?
<h4y4shi> dominikh: I have been trying to write some code that looks at every object in the array and if it is selected by my mouse it deletes itself. However it says the method to delete itself doesnt exist in the array. So I assumed that it was a nested array problem
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<dominikh> so... you didn't understand arrays, nor nesting and assumed the latter is the cause of the former?
<darix> dominikh: dont be so hard with him!
<cirwin> h4y4shi: you should probably spend a bit of time in a REPL (like irb or pry), it makes it a lot easier to understand things by just playing with them
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<darix> +1
<any-key> REPLs are here to help!
<h4y4shi> Thanks
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<rue> REPLs are here to read, evaluate, and print. In a loop.
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<dajmon> anyone interested in participating in a short interview at the minute?
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<yorickpeterse> dajmon: what kind of interview?
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<dajmon> i'm doing a research study on programming culture and i'm hangin' out in here for a few months for some participant observation
<dajmon> and conducting nonstructured interviews with whoever feels like taking part :)
<dajmon> takes maybe half an hour of your time and i don't collect any personal information
<yorickpeterse> Sure, by Email or privmsg?
<dajmon> privmsg - one second, gotta take care of some things
<yorickpeterse> sure
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<dajmon> i gotta switch offices so i'll be back in a minute
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<h4y4shi> How do I delete an object manually?
<apeiros_> you can't delete objects
<apeiros_> you can only stop referencing them
<h4y4shi> sad day
<apeiros_> happy day
<h4y4shi> not for me
<apeiros_> I wouldn't want encapsulation to be violated that badly
<apeiros_> you're most likely doing it wrong then.
<yxhuvud> well, unless he is writing a C extension
<h4y4shi> hmm actually I just had an aha moment
<h4y4shi> so I understand what you mean
<h4y4shi> this is a good thing
<dominikh> :D
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<h4y4shi> so .reject! just removes something from an array right?
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<apeiros_> if you call it on an array and if the block returns true for an element - yes
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<rob_> hi hi
<rob_> has anyone got any idea how to convert a day name into 3 letter name?
<rob_> i got the name from Date::DAYNAMES[]
<whitequark> rob_: name[0..3] ?
<whitequark> er, 0..2.
<rob_> i mean like sun, mon, tues, weds, thurs, fri, sat,
<whitequark> Date::DAYNAMES.first[0..2] # => "Sun"
<rob_> yeah that wont return 'thurs' for thursday though will it?
<yxhuvud> thurs is not 3 letters.
<whitequark> well, you have asked for 3 letter names
<whitequark> "Thurs".length # => 5
<rob_> 18:38 rob_: i mean like sun, mon, tues, weds, thurs, fri, sat,
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<rob_> i corrected myself, sorry
<rob_> i mean short names
<whitequark> no default way, I think. Date::ABBR_DAYNAMES contain exactly 3 letter names
<rob_> ahh ok, thanks
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<h4y4shi> Is it possible to assign a method to an array?
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<dominikh> "assign"?
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<h4y4shi> Whenever I have objects I can write my own methods in the class. I was wondering if I could do the same thing for my arrays.
<outoftime> h4y4shi: yes -- def my_array.your_method ... end
<outoftime> h4y4shi: that's not a commonly-used pattern in ruby, though.
<Mon_Ouie> There's most likely no reason you'd want to do that over your_method(array)
<outoftime> or writing a class that encapsulates your array and defines the additional behavior you need
<h4y4shi> okay thanks that sounds like a good idea
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<h4y4shi> Is there a way to select every object inside an array?
<rippa> select?
<h4y4shi> I dont know how else to explain what I am trying to do.
<yxhuvud> try. what are you trying to achieve?
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<h4y4shi> I have images representing every single object in my array, and I have a method written for each object called under_point? and it checks if it is being clicked on by the user. I want to pop off the object hat is under point.
<manveru> h4y4shi: you want to remove it?
<h4y4shi> yeah
<manveru> arr.reject!{|o| o.under_point? }
<h4y4shi> Thanks manveru I will try that.
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<h4y4shi> Im interested in extensions. Can you write a C++ extension or does it have to be written in c++
<h4y4shi> I mean C*
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<Mon_Ouie> You can use C++ too
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<TTilus> i know c, c++ and c#, byt whats c*
<Mon_Ouie> As long as you properly export the entry point function
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<whitequark> maybe anyone remembers my rant on skeuomorphs here?..
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<h4y4shi> So if I do arr[1..-1] does that select everything in the array?
<Mon_Ouie> No, arrays are 0-indexed
<Mon_Ouie> (first index is 0, not 1)
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<h4y4shi> So then would [0..-1] work/?
<Mon_Ouie> But why would you do that?
<Mon_Ouie> If you want to copy the array, use #dup
<h4y4shi> I want to test if anything in the array is being clicked on by the user.
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<ben> arr is already everything in arr
<h4y4shi> but I cant use the method I made called under_point?
<h4y4shi> I ddint really make it
<h4y4shi> but I cant use it.
<eggman2001> if I'm updating a large number of records (~500k) by iterating over them, is there a ruby way of making this go faster? would threading work in a case like this?
<outoftime> eggman2001: are you performing the same update to each one?
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<eggman2001> outoftime: no I'm not
<outoftime> eggman2001: okay. what kind of process is this running in?
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<outoftime> (rake task, background job, vanilla ruby script, etc.)
<eggman2001> it's in the rails console, which I'm using pry for
<outoftime> and you intend to continue doing it that way?
<outoftime> or this is just a one-off?
<apeiros_> eggman2001: avoid AR to speed it up
<apeiros_> ie go directly through the database adapter, plain sql
<outoftime> +1 apeiros_
<apeiros_> even better if you can do an update with where to perform the same update on multiple rows
<eggman2001> eventually, I'll use rake. not a one off
<outoftime> so I usually go with multi-process rather than multi-threading approaches, as thread-safety is often not a high priority for ruby library developers
<eggman2001> apeiros_: that's provided I'm doing the same update, which I'm not in this case
<apeiros_> eggman2001: only the second part
<apeiros_> the first part (plain-sql/directly on adapter level) can be done on individual records just fine
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<apeiros_> eggman2001: anyway, the less you tell us, the less we can help.
<apeiros_> and I'd assume that there is *some* logic in it, when you update that many records.
<apeiros_> also, depending on your db, make all updates a single commit, instead each a separate commit
<eggman2001> basically, I'm using AR and iterating over rows. For each row, I'm performing a calculation and then updating the row attributes based on the calculation. and yes, there is some logic
<eggman2001> and i'm using postgresql
<apeiros_> eggman2001: is the calculation based on data coming from that row?
<apeiros_> or rather: from data coming from the db?
<eggman2001> apeiros_: yes it is
<eggman2001> it's coming from that row
<apeiros_> so much for "can't do with a single query"
<outoftime> heh
<apeiros_> that sounds very much like you could do it with a single query :-p
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<outoftime> geez apeiros_, this is #ruby-lang not #sql-lang. can't we just solve the problem with metaprogramming or something?
<eggman2001> not sure what you mean by a single query. can you give me an example?
<outoftime> eggman2001: can't really give you an example unless you can be more specific about what you're trying to do
<eggman2001> do you mean a single sql query?
<outoftime> yes
<apeiros_> yes. meaning everything is performed by the db alone. it can do that in a couple of seconds, if not milliseconds.
<apeiros_> outoftime: how about adding a function to postgres which is implemented in ruby?
<apeiros_> (you can do that with sqlite & oracle, so I'd bet you can do with postgres too…)
<outoftime> apeiros_: yes! now you're talking.
<apeiros_> we used that to have greatest & nvl in sqlite :)
<outoftime> i didn't realize that was possible -- pretty nifty
<apeiros_> (I know you can rewrite nvl with coalesce - it was for a couple of things that didn't come from us)
<outoftime> what sort of bindings to ruby do you need?
<apeiros_> ruby-sqlite3
<apeiros_> or is it sqlite3-ruby?
<apeiros_> anyway, the common one
<outoftime> you mean the gem?
<apeiros_> for oracle, it'd be oci8, I don't think there's any other
<bradland> eggman2001: many SQL servers have a robust set of functionality available as part of the SQL language. it is not uncommon to perform calculations as part of the query, as the database server may be more efficient at performing the operations than pulling the data in to your script and doing it there.
<apeiros_> outoftime: yupp
<outoftime> ah i wasn't asking about the client library -- what does it take to get sqlite3 to run ruby code?
<outoftime> (for your custom function)
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<apeiros_> it was something like define_function.
<apeiros_> wait, I might have a snippet on this computer too…
<outoftime> and sqlite3 has a ruby interpreter built in? or some sort of language bridge?
<apeiros_> callback
<apeiros_> so it's kind of bridging
<outoftime> so sqlite3 sends the data to evaluate back to the client?
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<outoftime> sorry if i'm totally not getting it : )
<apeiros_> outoftime: http://pastie.org/3499102
<apeiros_> oh, I have an even nicer example - levenshtein…
<outoftime> apeiros_: OH because there *is* no server in sqlite3
<outoftime> duhhhh
<eggman2001> so my logic looks something like this. https://gist.github.com/1953080 I'm curious about whether you can do something like this with sql
<apeiros_> outoftime: na, since it works with oracle too…
<apeiros_> http://pastie.org/3499102 - updated
<outoftime> eggman2001: yeah, three update statements
<bradland> eggman2001: what is the database server? MySQL?
<outoftime> eggman2001: or maybe an update and some deletes. didn't see the monthly_data collection there. that makes it more complicated.
<eggman2001> postgresql
<outoftime> what's up with the throw/catch? that seems entirely superfluous...
<apeiros_> eggman2001: postgresql even has plsql built-in, you can do pretty much everything.
<eggman2001> outoftime: yeah, you're right
<bradland> yea that to what apeiros_ said
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<eggman2001> apeiros_: thanks. I'll look into it
<bradland> the question is whether you want to. what's the goal here, to increase performance?
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<bradland> if you're not familiar with SQL, there's a good chance you'll shoot yourself in the foot (write something that performs poorly)
<eggman2001> I'd like to increase performance in general for these types of operations
<eggman2001> and i'm not familiar with sql
<bradland> a quick performance win would be to run the app on the latest version of ruby, as the date operations are VASTLY improved in newer 1.9 releases
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<bradland> what version of ruby are you running?
<outoftime> I'd say a good first step would be to rewrite it using basic SQL selects and updates, not any sort of fancy bulk update
<eggman2001> 1.9.2p290
<outoftime> just getting AR out of the picture would be a huge improvement, no doubt.
<bradland> how big is the price_data data set?
<eggman2001> it's around 750,000
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<vpamulap> What is the best ruby webframework / server to write a quick long-polling demo
<bradland> eggman2001: ok, so first thing i'd do is try to move to 1.9.3 for the date performance bump. because you're calling to_date on that row data, you'll likely see a big bump just from that.
<bradland> eggman2001: if you can't move to 1.9.3, at least look at home_run: https://github.com/jeremyevans/home_run
<eggman2001> I see. okay i'll try 1.9.3
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<bradland> eggman2001: also, you could memoize this call monthly_data.first.call_date
<bradland> eggman2001: also, when using gist, name ruby files with .rb so we get syntax highlighting :) makes it easier on the eyes
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<eggman2001> bradland: all great suggestions. thanks!
<bradland> eggman2001: looks like telecom work. i do a lot of the same :)
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<eggman2001> bradland: actually stock data. a bit of a hobby of mine
<bradland> not sure if you've used CDRTool, but I wrote this to take an export of CDRs and build a time series list of concurrency for that time period. https://gist.github.com/1706903
<bradland> ah, ok
<eggman2001> I'll take a look at it :-) though it'll probably go over my head
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<jaimef> can a rake default task be setup to provide --tasks output?
<bradland> sounds recursive. brace for impact!
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<bradland> jaimef: this is ugly, but if you just 'puts `rake --tasks`' within your default task, it works
<krzyhoo> hey guys. i have a simple question. If I decide to save my classes, topic-wise, in a separate file, which I later include in my script using require, how to i refer to this file (what"s the proper nomenclature?)
<krzyhoo> is it a gem?
<shevy> krzyhoo not sure I understand this
<shevy> no
<shevy> a gem usually bundles together many files in one .gem "file", which is more or less an archive
<krzyhoo> shevy: ok
<shevy> you can distribute such a project without using gem as well
<shevy> for instance via setup.rb
<krzyhoo> shevy: look here:
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<shevy> which mostly just copies into SITE_DIR
<krzyhoo> take a look in Powercenter.rb file
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<krzyhoo> i wonder how do I call this file
<krzyhoo> how to refer to it
<krzyhoo> "my classes file"?
<dominikh> it's simply "a file".
<krzyhoo> dominikh: that name sucks :)
<shevy> usually these reside under a lib/ directory
<krzyhoo> shevy: wow you just read mz mind
<dominikh> kyrylo: then call it Bob if you want to, doesn't change what it is though :P
<shevy> most of the time these files are downcased, like "powercenter.rb"
<krzyhoo> that is what i really wanted to ask :)
<krzyhoo> shevy: appreciate it
<shevy> and one convention is that the filename would equal to the class name used in that file (if you stick to the convention of one class per file)
<shevy> for instance, world_domination.rb would equal to class WorldDomination
<krzyhoo> shevy: is it a convention?
<shevy> hmm
<dominikh> yes.
<shevy> dunno. it more seems to be the most often used case you'll see if you look at 100 different projects
<krzyhoo> shevy: appreciate it a lot
<krzyhoo> thanks
<shevy> you can make people happy if you don't stick to it though :>
<krzyhoo> just solved my existentional problems for today :)
<krzyhoo> cheers
<shevy> man that was fast
<shevy> I struggle DAILY with my existentional problems :D
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<savage-> apeiros_: are you around?
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<shevy> oh
<shevy> def test(*input = ARGV)
<shevy> is not possible hmm
<Mon_Ouie> input = ARGV if input.empty?
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<zenspider> grrr... I need someone to sanity check my atom feed on my blog. reeder doesn't have unique times on any of the entries and it is driving me nuts. the feeds validate fine :(
<erikh> load it up in google reader?
<zenspider> NNW seems happy with it
<zenspider> reeder uses google reader... so idgi
<erikh> oh, hrm
<erikh> let me grab a reader
<manveru> zenspider: which of the three feeds?
<manveru> zenspider: you have a double http:// there
<zenspider> any/all... should be roughly the same code with a minor tweak on what ...
<zenspider> where?
<manveru> <link href="http://http://www.zenspider.com/atom.xml" rel="alternate" title="Everything" type="application/atom+xml" />
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<manveru> well, the other two too
<zenspider> where'd you source that from?
<zenspider> I thought I fixed those
<manveru> curl http://www.zenspider.com/RWD/ | grep atom
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<zenspider> argh. those pages shouldn't have the feed links at all. damnit.... but yeah .I know what's wrong with that and it is a simple fix
<erikh> loaded in socialite
<erikh> looks like it sees two feeds
<erikh> one is great
<manveru> next up, the <id> tags all have the same date
<erikh> oh, hrm. maybe it's reading a different date
<zenspider> first issue fixed
<zenspider> thanks
<manveru> hm, oh, not all
<zenspider> I'll make sure to remove the links later
<manveru> guess you just released a ton on 29th?
<zenspider> manveru: id date? my ids should be urls
<manveru> yeah
<zenspider> but yeah. I did 4 releases yesterday
<zenspider> the biggest different between the old MT generated atom and mine is that MT used zulu-time
<zenspider> so I thought it was a stupid parsing bug in reeder
<erikh> my reader (Which read the RSS directly) caught the times in one of your feeds fine
<erikh> the other feed was totally broken due to what manveru said about the link
<zenspider> but I gsub'd the timestamps to look like zulu and it still was fucked up
<zenspider> erikh: which?
<zenspider> btw... I love love love love how fast the new system is. rake sync < 5 secs ftw
<manveru> you can just use Time.now.utc.xmlschema
<manveru> though utc isn't required, it's just the shortest
<erikh> zenspider: sec
<manveru> the first <updated> tag seems to be rfc2822
<erikh> sorry doing three things at once
<zenspider> me too :)
<erikh> your software releases feed is fine
<erikh> sorry. the rss is fine, the atom is busted.
<zenspider> manveru: where are you seeing rfc2822?
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<zenspider> I shouldn't have an rss feed... it should just redirect to atom
<erikh> hrm
<zenspider> wait. ok. I think I know the confusion.
<erikh> maybe I have hte dumb then, I'll get you a url
<zenspider> I'm talking about blog.zenspider.com
<manveru> curl -s http://www.zenspider.com/atom.xml | grep '<updated>' | head -1
<zenspider> www shouldn't have a feed. I should nuke that entirely. sorry.
<manveru> ohoh
<manveru> i didn't find a link to blog. on zenspider.com
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<manveru> there it looks fine
<zenspider> ok. www cleaned up
<zenspider> that was dumb... sorry. the original idea was to launch and merge both www. and blog. and that was a logistic nightmare
<crankharder> is there some ActiveModel based gem that uses redis as a backend?
<zenspider> in the end I still did 900 redirects to fix MT url munging... so I guess I prolly could have just fine
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<apeiros_> savage-: yes, what's up?
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<zenspider> manveru/erikh: thanks for the help...
<savage-> apeiros_: sorry, I was running into a strange error when running ary.enum_for(:grep, /foo/).first
<savage-> apeiros_: but it looks like it only breaks when I require 'awesome_print' :-/
<savage-> so all set!
<apeiros_> feed a banana to the monkey…
<apeiros_> (monkey-patch)
<apeiros_> out of curiousity, what was the error?
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<blarghl> hey all. how do i parse a time interval and add it to other time intervals? i have things like 00:03:12.42 (3 mins, 12 seconds, 42ms), and i'd like to add that to some other time interval and display how much time has elapsed in total
<blarghl> where by 'things like' i mean 'strings like', to be precise.
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<outoftime> blarghl: strptime
<outoftime> blarghl: and +
<blarghl> outoftime: that creates a date object. what i'm doing has nothing at all to do with dates, though.
<zenspider> ok... very odd. google reader shows the same timestamps as reeder... I think this is a problem with the service, not the app :(
<outoftime> blarghl: ok, yeah, strptime's behavior isn't very helpful there
<outoftime> blarghl: your good friend mr. regexp is probably your best bet.
<zenspider> blarghl: you want a function that takes the string and returns an int, and another that takes an int and returns the string
<zenspider> I have the latter... sec
<blarghl> zenspider: int? as in interval, not integer i assume?
<zenspider> integer
<blarghl> zenspider: hm yeah. convert to ms and back i guess.
<zenspider> .42 is 420 ms btw
<blarghl> zenspider: yes it is indeed. sorry :)
<zenspider> time = []
<zenspider> [ 86400, 3600, 60, 1 ].inject(seconds) { |sec,seg| time << sec / seg; sec % seg }
<zenspider> time.shift while time.first == 0
<zenspider> time.reverse.zip(%w(s m h d)).reverse.join
<blarghl> zenspider: hm, thanks. let me play with that.
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<h4y4shi> Does anyone know of an example of a array having a method?
<apeiros_> ri Array
<apeiros_> it has something over 100 methods…
<apeiros_> ary.shift, ary.pop, ary.push(val), …
<h4y4shi> I custom method I mean, I want to see an example of someone creating an array and then writing an array. I couldnt find an example of this
<h4y4shi> A*
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<outoftime> h4y4shi: I think you're confused. Array is just a class, like any other class. the Array class defines methods. arrays are objects of the Array class, which respond to the methods that the Array class defines.
<outoftime> h4y4shi: there is no such thing as "writing an array" in the sense of "writing a class".
<h4y4shi> So there is no way I can write a method for an array?
<h4y4shi> sorry I am pretty slow today I have been trying to find a way to solve this problem ive been having all day and I am having trouble comprehending what you said. But I get it now lol.
<outoftime> h4y4shi: maybe if you can explain the specific problem I can suggest something?
<h4y4shi> Okay, I wrote a thread about it here. http://www.libgosu.org/cgi-bin/mwf/topic_show.pl?tid=728 .
<outoftime> h4y4shi: it is possible to extend the Array class with extra methods, or even extend individual array objects with extra methods. this isn't unique to Array; you can do this with any class or object. but this is almost certainly not the best approach to your problem.
<outoftime> h4y4shi: i'm sorry -- I actually have to go right now. hopefully someone else can help
<h4y4shi> Are you by any chance familiar with Gosu?
<h4y4shi> I will try to find out how to extend classes with extra methods.
<h4y4shi> Thanks.
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<whatasunnyday> Hi, while installing a gem, I get thrown this error: While executing gem ... (ArgumentError) invalid byte sequence in UTF-8. How do I go about troubleshooting this?
<whatasunnyday> It doesn't return a line or where the issue is.
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<whatasunnyday> Well, it seems if I don't build and install the gem in the same line, I get no issue.
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<whatasunnyday> Thanks anywho.
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<zenspider> h4y4shi: 1) you're terrible at asking clear questions
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<zenspider> h4y4shi: 2) I _still_ think you don't understand OO and need to back up and work on fundamentals
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<zenspider> h4y4shi: 3) the url you provided doesn't clarify your question at all
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<h4y4shi> So, you suggest I should put this on hold and learn the fundamentals?
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<zenspider> h4y4shi: I think learning how to drive a pinto before you get behind the wheel of a ferrari is a good idea