Class: Graphiti::ActiveGraph::Scoping::AssociationEagerLoad

Inherits:
Scoping::Base
  • Object
show all
Defined in:
lib/graphiti/active_graph/scoping/association_eager_load.rb

Instance Method Summary collapse

Instance Method Details

#apply_standard_scope ⇒ Object 



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# File 'lib/graphiti/active_graph/scoping/association_eager_load.rb', line 8

def apply_standard_scope
  return @scope unless eagerload_associations?
  if (ids = @scope.collect(&:id)).present?
    @opts[:query_obj].include_hash.each_key do |key|
      eagerload_association(key, ids)
    end
  end
  @scope
end

#custom_scope ⇒ Object 



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# File 'lib/graphiti/active_graph/scoping/association_eager_load.rb', line 4

def custom_scope
  nil
end

#eagerload_association(key, ids) ⇒ Object 



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# File 'lib/graphiti/active_graph/scoping/association_eager_load.rb', line 23

def eagerload_association(key, ids)
  return unless @resource.model.eagerload_association?(key)
  nodes = @resource.model.association_nodes(key, ids, @resource.context.send(:association_filter_params))
  @scope.each { |node| node.send("#{key}=", nodes[node.id] || nil_or_empty(key)) }
end

#eagerload_associations? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/graphiti/active_graph/scoping/association_eager_load.rb', line 18

def eagerload_associations?
  @opts[:query_obj].include_hash.present? && @resource.model.include?(ActiveGraph::Node) &&
    @resource.model.associations_to_eagerload.present?
end

#nil_or_empty(key) ⇒ Object 



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# File 'lib/graphiti/active_graph/scoping/association_eager_load.rb', line 29

def nil_or_empty(key)
  @resource.class.config[:sideloads][key].type == :has_one ? nil : []
end