Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/activerecord_plurals.rb

Overview

This monkey-patches the array class to catch plural method calls. It assumes we’re running in a rails environment that provides us with String#singularize. The limitation that this method imposes on rails applications is that you cannot have a column with a name that collides with methods defined on Array (or on its ancestor). i.e. if you have a model named “Diary” with the column “entry”, calling Diary.entries will invoke the underlying Object#entries method. This is undesired behavior and it is up to the developer to wisely avoid these cases.

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_id, *args, &block) ⇒ Object 



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# File 'lib/activerecord_plurals.rb', line 42

def method_missing(method_id, *args, &block)
  singular_method_id = method_id.to_s.singularize.to_sym
  if method_id != singular_method_id
    return self.map(&singular_method_id) 
  end
  super
end

Instance Method Details

#respond_to?(symbol, include_private = false) ⇒ Boolean

Respond also to methods on arrays of ActiveRecord instances. Note: There is intentionally no restriction on the uniformity of instances in the array, i.e. they don’t have to all be of the same class. This is useful when you have a mixed array with objects that share the same attributes (Dog, Labrador < Dog for example) and follows ruby’s duck-typing conventions.

Returns:

  • (Boolean) 


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# File 'lib/activerecord_plurals.rb', line 55

def respond_to?(symbol, include_private=false)
  super or all?{|e| e.is_a?(ActiveRecord::Base) && e.class.respond_to?(symbol)}
end