Module: RestPack::Resource::ClassMethods

Defined in:
lib/restpack-resource/resource.rb

Instance Method Summary collapse

Instance Method Details

#association_relationships(association) ⇒ Object

Raises:



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# File 'lib/restpack-resource/resource.rb', line 29

def association_relationships(association)
  target_model_name = association.to_s.singularize.capitalize              
  relationships = self.relationships.select {|r| r.target_model.to_s == target_model_name }
  raise InvalidInclude if relationships.empty?
  relationships
end

#extract_includes_array_from_params(params) ⇒ Object 



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# File 'lib/restpack-resource/resource.rb', line 50

def extract_includes_array_from_params(params)
  params[:includes].nil? ? [] : params[:includes].split(',')
end

#get_child_models(relationship, foreign_keys, page_size) ⇒ Object 



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# File 'lib/restpack-resource/resource.rb', line 36

def get_child_models(relationship, foreign_keys, page_size)
  child_key_name = relationship.child_key.first.name
  relationship.child_model.all(child_key_name.to_sym => foreign_keys).page({ per_page: page_size })
end

#get_one_to_many_side_loads(relationship, foreign_keys) ⇒ Object 



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# File 'lib/restpack-resource/resource.rb', line 41

def get_one_to_many_side_loads(relationship, foreign_keys)
  result = {}            
  children = get_child_models(relationship, foreign_keys, 100) #TODO: GJ: configurable side-load page size
  result[:resources] = children.map {|c| c.as_resource() }
  result[:count_key] = "#{relationship.child_model_name.downcase}_count".to_sym
  result[:count] = children.pager.total
  result
end

#invalid_include(relationship) ⇒ Object

Raises:



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# File 'lib/restpack-resource/resource.rb', line 54

def invalid_include(relationship)
  raise InvalidInclude, "#{self.name}.#{relationship.name} can't be included when paging #{self.name.pluralize.downcase}"
end

#model_as_resource(model) ⇒ Object 



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# File 'lib/restpack-resource/resource.rb', line 25

def model_as_resource(model)
  model ? model.as_resource() : nil
end