Class: ActiveRecord::Associations::Builder::Association

Inherits:
Object
  • Object
show all
Defined in:
activerecord/lib/active_record/associations/builder/association.rb

Overview

:nodoc:

Direct Known Subclasses

CollectionAssociation, SingularAssociation

Constant Summary collapse

VALID_OPTIONS = 
[
  :class_name, :anonymous_class, :primary_key, :foreign_key, :dependent, :validate, :inverse_of, :strict_loading, :query_constraints
].freeze

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.extensions ⇒ Object

Returns the value of attribute extensions



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# File 'activerecord/lib/active_record/associations/builder/association.rb', line 17

def extensions
  @extensions
end

Class Method Details

.build(model, name, scope, options, &block) ⇒ Object

:nodoc:



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# File 'activerecord/lib/active_record/associations/builder/association.rb', line 25

def self.build(model, name, scope, options, &block)
  if model.dangerous_attribute_method?(name)
    raise ArgumentError, "You tried to define an association named #{name} on the model #{model.name}, but " \
                         "this will conflict with a method #{name} already defined by Active Record. " \
                         "Please choose a different association name."
  end

  reflection = create_reflection(model, name, scope, options, &block)
  define_accessors model, reflection
  define_callbacks model, reflection
  define_validations model, reflection
  define_change_tracking_methods model, reflection
  reflection
end

.create_reflection(model, name, scope, options, &block) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'activerecord/lib/active_record/associations/builder/association.rb', line 40

def self.create_reflection(model, name, scope, options, &block)
  raise ArgumentError, "association names must be a Symbol" unless name.kind_of?(Symbol)

  validate_options(options)

  extension = define_extensions(model, name, &block)
  options[:extend] = [*options[:extend], extension] if extension

  scope = build_scope(scope)

  ActiveRecord::Reflection.create(macro, name, scope, options, model)
end