Class: DataMapper::Associations::OneToOne::Relationship

Inherits:
Relationship
  • Object
show all
Defined in:
lib/dm-core/associations/one_to_one.rb

Constant Summary

Constants inherited from Relationship

Relationship::OPTIONS

Instance Attribute Summary

Attributes inherited from Relationship

#child_repository_name, #instance_variable_name, #max, #min, #name, #options, #parent_repository_name, #query

Instance Method Summary collapse

Methods inherited from Relationship

#==, #child_key, #child_model, #child_model?, #child_model_name, #eager_load, #eql?, #get!, #inverse, #loaded?, #parent_key, #parent_model, #parent_model?, #parent_model_name, #query_for, #relative_target_repository_name, #relative_target_repository_name_for, #set!, #source_scope, #valid?

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &block) ⇒ Object (private)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

TODO: document



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# File 'lib/dm-core/associations/one_to_one.rb', line 68

def method_missing(method, *args, &block)
  relationship.send(method, *args, &block)
end

Instance Method Details

#get(source, other_query = nil) ⇒ Object

Loads (if necessary) and returns association target for given source



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# File 'lib/dm-core/associations/one_to_one.rb', line 15

def get(source, other_query = nil)
  assert_kind_of 'source', source, source_model

  return unless loaded?(source) || source_key.get(source).all?

  relationship.get(source, other_query).first
end

#instance_of?(klass) ⇒ Boolean

TODO: document

Returns:

  • (Boolean) 


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# File 'lib/dm-core/associations/one_to_one.rb', line 42

def instance_of?(klass)
  super || relationship.instance_of?(klass)
end

#kind_of?(klass) ⇒ Boolean

TODO: document

Returns:

  • (Boolean) 


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# File 'lib/dm-core/associations/one_to_one.rb', line 36

def kind_of?(klass)
  super || relationship.kind_of?(klass)
end

#respond_to?(method, include_private = false) ⇒ Boolean

TODO: document

Returns:

  • (Boolean) 


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# File 'lib/dm-core/associations/one_to_one.rb', line 48

def respond_to?(method, include_private = false)
  super || relationship.respond_to?(method, include_private)
end

#set(source, target) ⇒ Object

Sets and returns association target for given source



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# File 'lib/dm-core/associations/one_to_one.rb', line 27

def set(source, target)
  assert_kind_of 'source', source, source_model
  assert_kind_of 'target', target, target_model, Hash, NilClass

  relationship.set(source, [ target ].compact).first
end