Module: ActiveRecord::Delegation::DelegateCache

Included in:
Base
Defined in:
lib/active_record/relation/delegation.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#inherited(child_class) ⇒ Object


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# File 'lib/active_record/relation/delegation.rb', line 26

def inherited(child_class)
  child_class.initialize_relation_delegate_cache
  delegate = child_class.relation_delegate_class(ActiveRecord::Associations::CollectionProxy)
  delegate.include ActiveRecord::Associations::CollectionProxy::DelegateExtending
  super
end

#initialize_relation_delegate_cacheObject


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# File 'lib/active_record/relation/delegation.rb', line 8

def initialize_relation_delegate_cache
  @relation_delegate_cache = cache = {}
  [
    ActiveRecord::Relation,
    ActiveRecord::Associations::CollectionProxy,
    ActiveRecord::AssociationRelation
  ].each do |klass|
    delegate = Class.new(klass) {
      include ClassSpecificRelation
    }
    mangled_name = klass.name.gsub("::".freeze, "_".freeze)
    const_set mangled_name, delegate
    private_constant mangled_name

    cache[klass] = delegate
  end
end

#relation_delegate_class(klass) ⇒ Object


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# File 'lib/active_record/relation/delegation.rb', line 4

def relation_delegate_class(klass)
  @relation_delegate_cache[klass]
end