Class: DataMapper::Associations::RelationshipChain

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

Constant Summary collapse

OPTIONS = 
[
  :repository_name, :near_relationship_name, :remote_relationship_name,
  :child_model, :parent_model, :parent_key, :child_key,
  :min, :max
]

Instance Attribute Summary

Attributes inherited from Relationship

#name, #options, #query

Instance Method Summary collapse

Methods inherited from Relationship

#attach_parent, #child_key, #get_parent, #parent_key, #parent_model, #with_repository

Methods included from DataMapper::Assertions

#assert_kind_of

Instance Method Details

#child_model ⇒ Object

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. 



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# File 'lib/dm-core/associations/relationship_chain.rb', line 14

def child_model
  near_relationship.child_model
end

#get_children(parent, options = {}, finder = :all, *args) ⇒ Object

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. 



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# File 'lib/dm-core/associations/relationship_chain.rb', line 19

def get_children(parent, options = {}, finder = :all, *args)
  query = @query.merge(options).merge(child_key.to_query(parent_key.get(parent)))

  query[:links]  = links
  query[:unique] = true

  with_repository(parent) do
    results = grandchild_model.send(finder, *(args << query))
    # FIXME: remove the need for the uniq.freeze
    finder == :all ? (@mutable ? results : results.freeze) : results
  end
end