Class: Mongoid::ActiveRecord::EagerLoadable::RelationMetadata

Inherits:
Object
  • Object
show all
Defined in:
lib/mongoid/active_record/eager_loadable/relation_metadata.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(relation) ⇒ RelationMetadata

Returns a new instance of RelationMetadata.



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# File 'lib/mongoid/active_record/eager_loadable/relation_metadata.rb', line 8

def initialize(relation)
  @relation = relation
  relation_class.define_singleton_method(:collection_name) { table_name }
end

Instance Attribute Details

#relation ⇒ Object (readonly)

Returns the value of attribute relation.



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# File 'lib/mongoid/active_record/eager_loadable/relation_metadata.rb', line 6

def relation
  @relation
end

Instance Method Details

#eager_load(ids) ⇒ Object 



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# File 'lib/mongoid/active_record/eager_loadable/relation_metadata.rb', line 13

def eager_load(ids)
  relation_class.where(id: ids.uniq).each do |record|
    IdentityMap.set(record)
  end
end

#foreign_key ⇒ Object 



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# File 'lib/mongoid/active_record/eager_loadable/relation_metadata.rb', line 23

def foreign_key
  "#{relation}_id"
end

#relation_class ⇒ Object 



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# File 'lib/mongoid/active_record/eager_loadable/relation_metadata.rb', line 19

def relation_class
  relation.to_s.classify.constantize
end

#stores_foreign_key? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mongoid/active_record/eager_loadable/relation_metadata.rb', line 27

def stores_foreign_key?
  true
end