Friday, April 5, 2013

Rails Utility Methods

October 20th, 2008 By: Daniel

Browsing the Rails API I found a few methods I wish I’d known about earlier.
current_page? in ActionView::Helpers::UrlHelper returns “true if the current request URI was generated by the given options.”
  current_page?(:action => 'process')
  # => false
  current_page?(:action => 'checkout')
  # => true
reverse_merge! in ActiveSupport::CoreExtensions::Hash::ReverseMerge “allows for reverse merging where its the keys in the calling hash that wins over those in the other_hash.”
So now instead of
  def setup(options = {})
    options = {:income => 0, :expenses => 0}.merge(options)
I can do
  def setup(options = {})
    options.reverse_merge! :income => 0, :expenses => 0
And with ActiveSupport::CoreExtensions::String::Conversions I can stop using the PHP feeling
to the more rubyish

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