In Ruby on Rails, where does one put the code from this snippet in http://gist.github.com/376389? I want to extend ActiveRecord::Errors with the code that's available there so I can merge error messages.
Is this something for ApplicationController? or for lib?
Paste from github.com
# monkey patch gleaned from http://dev.rubyonrails.org/attachment/ticket/11394/merge_bang_errors.patch
module ActiveRecord
class Errors
def merge!(errors, options={})
fields_to_merge = if only=options[:only]
only
elsif except=options[:except]
except = [except] unless except.is_a?(开发者_StackOverflow中文版Array)
except.map!(&:to_sym)
errors.entries.map(&:first).select do |field|
!except.include?(field.to_sym)
end
else
errors.entries.map(&:first)
end
fields_to_merge = [fields_to_merge] unless fields_to_merge.is_a?(Array)
fields_to_merge.map!(&:to_sym)
errors.entries.each do |field, msg|
add field, msg if fields_to_merge.include?(field.to_sym)
end
end
end
end
You can just drop that into any ruby file in your initializers
directory (create a new one, name it whatever you want). Rails runs all of the files in there every time it is booted, and will extend Errors
at that time.
This question is stale but if you want to do something similar in rails 3.x you can drop this in a file in your config/initializers/ directory:
# monkey patch gleaned from http://dev.rubyonrails.org/attachment/ticket/11394/merge_bang_errors.patch
module ActiveModel
class Errors
def merge!(errors, options={})
return if errors.blank? || errors.first.size < 2
fields_to_merge = if only=options[:only]
only
elsif except=options[:except]
except = [except] unless except.is_a?(Array)
except.map!(&:to_sym)
errors.entries.map(&:first).select do |field|
!except.include?(field.to_sym)
end
else
errors.entries.map(&:first)
end
fields_to_merge = [fields_to_merge] unless fields_to_merge.is_a?(Array)
fields_to_merge.map!(&:to_sym)
errors.entries.each do |field, msg|
add field, msg if fields_to_merge.include?(field.to_sym)
end
end
end
end
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