Can't understand why hooks don't work. I have the following model: class DirItem include DataMapper::Resource # property <name>, <type> property :id, Serial property :dir_cat_id, Integer, :required => true property :title, String, :required => true property :price, Integer, :default => 0 belongs_to :dir_cat has n, :dir...
upcase method capitalizes the entire string. I need to capitalize only the first letter. Also, i need support several popular languages, like "german", "russian" etc. How to do it ? ...
Hi, I'm currently switching from rdoc to yard for my ruby software documentaion. In my doc I often reference some classes/modules from the comments, for instance : ## == Provides various utility features ## ## == Features ## ## Logging : logging is provided by the Mysoft::Mypackage::Utility::Logger class ## Rdoc correctly creates a...
Is there a way to make this one liner better looking? @var = params[:key1][:key2] unless params.blank? || params[:key1].blank? ...
I'm looking for a database agnostic way to create new schemas. Something like postgres_uri = "postgres://username:password@hostname/database" mysql_uri = "mysql://username:password@hostname/database" [postgres_uri, mysql_uri].each do |db| connection = DB.connect(db_uri) connection.create_schema("xyz") end Bonus marks for somethin...
There is a useful Ruby idiom that uses tap which allows you to create an object, do some operations on it and return it (I use a list here only as an example, my real code is more involved): def foo [].tap do |a| b = 1 + 2 # ... and some more processing, maybe some logging, etc. a << b end end >> foo => [1] With Rails...
So, I have this block of code, and yes it looks ugly. Is there a better a data structure I can use to compare row.add,row.modify,row.delete and row.query with "Y" and call the get_role function? Note this block of code runs in a loop, hence the 'row'. if row.add == "y" role_ids << get_role("c") end if row.modify == ...
How do I come to know whether a create or any other action has been called from inside a model. Basically I am doing database logging and want to track whether a create or other actions are being performed. For doing the logging part I am using the concept of ActiveRecord::Observer. But there I am not able to find out whether the user i...
Hi all. I want to use if-else condition in one line. I have used the ternary operator, but doesn't seem to work. Any clues? class Array def painful_injection each do |item| sum = yield (defined?(sum).nil?) ? 0 : sum, item #pass the arguments to the block end sum end end puts [1, 2, 3, 4].painful_injection {|sum, nxt_i...
given the fact that a user has many credit cards and a credit card has many addresses, I am trying to create a form that creates a user and credit card with address all at once relavent model code: class User < ActiveRecord::Base has_many :credit_cards accepts_nested_attributes_for :credit_cards end class CreditCard < ActiveRecord...
Hey I am trying to find out how to send an XML in string as RAW_DATA to a RESTful API. I found out a couple of libraries (Nestful, Restfulclient, curb) but wasn't able to send the content properly as you'd send it from Rails Functional tests @request.env['RAW_POST_DATA'] = xml.to_s Any suggestions? ...
To refresh Redmine, I need SVN to ping our Redmine installation from our post-commit hook. Our post-commit hook is a Ruby script that generates an email. I'd like to insert a call do this: curl --insecure https://redmineserver+webappkey This call works from the command line but when I try to do this: #!/usr/bin/ruby -w REFRESH_DRADIS...
Is there a way to set a default initialize method without writing it down? class DataClass attr_accessor :title, :description, :childs def hasChilds? @childs.nil? end end I Want to initialize this class with standard initial attributes. Something like this: $> a = DataClass.new(:title => "adsf", :description => "test") $> a...
Having looked at this question, I have the following code: $/ = "\0" answer = STDIN.gets Now, I was hoping that this would allow the user to: enter a multi-line input, terminating by pressing Ctrl-D. enter a single line input, terminating by pressing Ctrl-D. enter a "nothing" input, terminating by pressing Ctrl-D. However, the beh...
Hi How can i clear the contents of an input field using ruby selenium? i.e when page loads up there are values in the input filed but i want to replace them with new ones. thank you ...
Hi, I have been trying to get Rails 3 installed in Fedora, it requires Ruby to be 1.8.7 or 1.9.2. Fedora official yum repos have Ruby 1.8.6 which is of no use. So I decided to compile it myself from the source, downloaded the source, compiled it and installed it successfully. But this weird thing happens after the install, sudo gem or ...
This is my array [{:amount=>10, :gl_acct_id=>1, :alt_amount=>20}, {:amount=>20, :gl_acct_id=>2 , :alt_amount=>30}] i want result [{:amount => 30}] or {:amount = 30} Any idea? ...
Ranges in ruby are pretty cool. I end up with arrays such as this: geneRanges = [(234..25), (500..510), (1640..1653)] And subsequently have to remove bits of them. For that I: genePositions = geneRanges.collect {|range| range.entries }.flatten => [500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 1640, 1641, 1642, 1643, 1644, ...
Hi Guys I have HAML SASS converter and want to allow users the localhost:30000 functionality i guess to view their HAML SASS files in the browsers. Any guides you know that might help me? Thanks ...
I want to write basically User.find(:all).each {|u| u.update_attribute("email","nil#{incrementing_number}")} How do I make that #{incrementing_number} incremement per updated attribute. :D ...