Assume, I have a two dimensional array A, and it's stated that somewhere inside it there's an object my_element. What's the quickest way to find out its coordinates? I am using Ruby 1.8.6. ...
I want to get all file names from a folder using Ruby. ...
i write something in ruby thinking that it will work as it did in php but no! i realized that you need to clone objects using .clone merely associating to a variable doesn't work ! in php this worked fine! it took 2 days until i discovered this error! what tutorials can i read to get firm grasp on ruby ?! ...
I have recently designed a web application that I would like to write in Ruby. Coming from a ASP background I designed it with method and fields and linked them together (in my diagram and UML) like I would do it in C#. However, now that I've moved from a single app to MVC I have no idea where my code goes or how the pieces are linked. ...
simplified version of my problem require 'wx' Wx::App.run do f = Wx::Frame.new nil f.title= 'the potlee' f.size= Wx::Size.new( 200 , 500) f.pos= Wx::point.new(50,50) f.show end i get this error `method_missing': undefined method `pos=' for #<Wx::Frame:0x207d020> how can i set the size on the frame but not the position...
checkout this code and the output def lab yield ensure puts 'in ensure block' true end puts lab { puts 'inside inline block'; false } output is #inside inline block #in ensure block #false I was expecting that after the block is executed then ensure will be executed and since ensure returns true , the final output of cal...
I'm always making the same steps when I do: script/console do you know some file to edit or something similiar to avoid doing always the same, like for example loading some particular required gem (in my casi 'spawners' :)) ...
I am trying to build a free web application using ruby/rails It should be able to send sms through online forms of various mobile operators. (like this one (in russian)). So, I need to wait for the user, who wants to send an sms through my website. establish connection to operator website. Probably, using Mechanize. retrieve captcha s...
I am new to Rails so this is probably an easy question but can't find anything that seems to explain it well. How do I style forms in rails to. When I try to use the default styling for input (for example) it styles my text field and create button the same. Is there a built in convention or do I have to add some sort of helper. If it i...
What is the best way to create a hide and show effect in rails 2. Is it to use a JQuery type solution or is there something as good, better or easier built in? ...
I changed the highlightColor and highlightEndColor in the /public/javascript/controls.js file but it isn't changing when the AJAX effect runs. What am I doing wrong? ...
I play around with arrays and hashes quite a lot in ruby and end up with some code that looks like this: sum = two_dimensional_array.select{|i| i.collect{|j| j.to_i }.sum > 5 }.collect{|i| i.collect{|j| j ** 2 }.average }.sum (Let's all pretend that the above code sample makes sense now...) The problem is that even th...
I'm using the Rails session to store a cookie_jar I get from Mechanize. This lets me call a webservice and maintain the cookies it sends back. The class takes a session in it's constructor, so I'm passing in the Rails session. Then, when I call the service, I load the cookie_jar (if I have one) like: agent = WWW::Mechanize.new agent.c...
For instance, in Python, I can create a class like this: class foo(object): bar = 'x' def __init__(self, some_value): self.some_attr = some_value ...where bar is a class attribute and some_attr is an instance attribute. What is the idiomatic way to do things like this in Ruby? ...
For a long time I tried desperately to get this to work, I've googled, I've tinkered, and I've asked some local Rubyists (though not pdx.rb, though I really should). I think I explained this poorly to begin with. Let me try again. We were trying to do something like this at work case user.roles.included? (... magic ...) when ['admin...
I'm looking to create a custom daemon that will run various database tasks such as delaying mailings and user notifications (each notice is a separate row in the notifications table). I don't want to use script/runner or rake to do these tasks because it is possible that some of the tasks only require the create of one or two database ro...
I am using mechanize/nokogiri and need to parse out the following HTML string. can anyone help me with the xpath syntax to do this or any other methods that would work? <table> <tr class="darkRow"> <td> <span> <a href="?x=mSOWNEBYee31H0eV-V6JA0ZejXANJXLsttVxillWOFoykMg5U65P4x7FtTbsosKRbbBPuYvV8nPhET7b5sFeON4aWpbD10Dq"> <span...
I have a site listing many jobs, but I also want each account to be able to access its jobs in one place. Thus, I am using these routes: map.resources :jobs map.resource :account, :has_many => :jobs This gets me URLs like localhost/jobs/ and localhost/account/jobs. However, both seem to render JobsController::index. How can I either m...
I was trying to create a quick little script that would insert data into an SQLite db for me but I can't get past the first few steps. I have done "sudo gem install sqlite3-ruby", my Ruby version is 1.8.7 (I used the Ruby one click installer from rubyforge.org). My script is incredibly simple. It looks like this: #!/usr/bin/ruby -w re...
I'm sure it's a silly question to those who know...but I can't find an explanation of what it does or what it is. CSV.open('data.csv', 'r') do |row| p row end What does "p row" do? ...