Class: InPlaceRelation::Wrapper

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

Constant Summary collapse

METHODS_TO_WRAP = 
ActiveRecord::Relation::ASSOCIATION_METHODS + ActiveRecord::Relation::MULTI_VALUE_METHODS + ActiveRecord::Relation::SINGLE_VALUE_METHODS + [:merge]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(relation) ⇒ Wrapper 



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# File 'lib/in_place_relation.rb', line 35

def initialize( relation )
  @relation = relation
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

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



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# File 'lib/in_place_relation.rb', line 43

def method_missing( meth, *args, &block )
  result = @relation.send( meth, *args, &block )
  # Wrap dynamically into a method if the result is a Relation - this makes
  # it work with scopes
  if result.is_a?( ActiveRecord::Relation )
    singleton_class.class_eval do
      define_method( meth ) do |*args, &block|
        @relation = @relation.send( meth, *args )
        return self
      end
    end
    @relation = result
    return self
  else
    return result
  end
end

Instance Attribute Details

#relation ⇒ Object (readonly)

Wrapped ActiveRecord::Relation object



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# File 'lib/in_place_relation.rb', line 24

def relation
  @relation
end

Instance Method Details

#in_place ⇒ Object 



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# File 'lib/in_place_relation.rb', line 61

def in_place
  return self
end

#inspect ⇒ Object 



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# File 'lib/in_place_relation.rb', line 39

def inspect
  return "#{self.class}:#{object_id}"
end