Class: ActiveRecord::AssociatedObject

Inherits:
Object
  • Object
show all
Extended by:
ActiveModel::Naming
Includes:
ActiveModel::Conversion, Caching
Defined in:
lib/active_record/associated_object/version.rb,
lib/active_record/associated_object.rb

Defined Under Namespace

Modules: Caching, ObjectAssociation Classes: Railtie

Constant Summary collapse

VERSION = 
"0.9.3"

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Caching

#cache_key, #cache_key_with_version

Constructor Details

#initialize(record) ⇒ AssociatedObject

Returns a new instance of AssociatedObject.



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# File 'lib/active_record/associated_object.rb', line 63

def initialize(record)
  @record = record
end

Class Attribute Details

.attribute_name ⇒ Object (readonly)

Returns the value of attribute attribute_name.



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# File 'lib/active_record/associated_object.rb', line 21

def attribute_name
  @attribute_name
end

.record ⇒ Object (readonly)

Returns the value of attribute record.



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# File 'lib/active_record/associated_object.rb', line 21

def record
  @record
end

Instance Attribute Details

#record ⇒ Object (readonly)

Returns the value of attribute record.



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# File 'lib/active_record/associated_object.rb', line 58

def record
  @record
end

Class Method Details

.associated_via(record) ⇒ Object 



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# File 'lib/active_record/associated_object.rb', line 12

def associated_via(record)
  unless record.respond_to?(:descends_from_active_record?) && record.descends_from_active_record?
    raise ArgumentError, "#{record} isn't a valid namespace; can only associate with ActiveRecord::Base subclasses"
  end

  @record, @attribute_name = record, model_name.element.to_sym
  alias_method record.model_name.element, :record
end

.extension(&block) ⇒ Object 



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# File 'lib/active_record/associated_object.rb', line 24

def extension(&block)
  record.class_eval(&block)
end

.inherited(new_object) ⇒ Object 



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# File 'lib/active_record/associated_object.rb', line 8

def inherited(new_object)
  new_object.associated_via(new_object.module_parent)
end

.method_missing(meth) ⇒ Object 



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# File 'lib/active_record/associated_object.rb', line 28

def method_missing(meth, ...)
  if !record.respond_to?(meth) || meth.end_with?("?", "=") then super else
    record.public_send(meth, ...).then do |value|
      value.respond_to?(:each) ? value.map(&attribute_name) : value&.public_send(attribute_name)
    end
  end
end

.respond_to_missing?(meth) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_record/associated_object.rb', line 36

def respond_to_missing?(meth, ...)
  (record.respond_to?(meth, ...) && !meth.end_with?("?", "=")) || super
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/active_record/associated_object.rb', line 67

def ==(other)
  other.is_a?(self.class) && id == other.id
end