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Class: Mongoid::Association::Referenced::HasOne::Eager

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
Instance Chain:
Inherits: Mongoid::Association::Eager
Defined in: lib/mongoid/association/referenced/has_one/eager.rb

Overview

Eager class for has_one associations.

Class Method Summary

::Mongoid::Association::Eager - Inherited

.new

Instantiate the eager load class.

Instance Method Summary

::Mongoid::Association::Eager - Inherited

#run

Run the preloader.

#each_loaded_document_of_class

Retrieves the documents of the specified class, that have the foreign key included in the specified list of keys.

#shift_association

Shift the current association metadata.

Constructor Details

This class inherits a constructor from Mongoid::Association::Eager

Instance Method Details

#group_by_key (private)

[ GitHub ]

  
# File 'lib/mongoid/association/referenced/has_one/eager.rb', line 24

def group_by_key
  @association.primary_key
end

#key (private)

[ GitHub ]

  
# File 'lib/mongoid/association/referenced/has_one/eager.rb', line 28

def key
  @association.foreign_key
end

#preload (private)

[ GitHub ]

  
# File 'lib/mongoid/association/referenced/has_one/eager.rb', line 13

def preload
  @docs.each do |d|
    set_relation(d, nil)
  end

  each_loaded_document do |doc|
    id = doc.send(key)
    set_on_parent(id, doc)
  end
end