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Versions: 12
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Stored size: 1.03 KB
Contents
module PassiveRecord
module Associations
class HasOneAssociation < Struct.new(:parent_class, :child_class_name, :child_name_sym)
def to_relation(parent_model)
HasOneRelation.new(self, parent_model)
end
def target_name_symbol
child_name_sym
end
end
class Relation < Struct.new(:association, :parent_model)
def singular?
true
end
end
class HasOneRelation < Relation
def lookup
child_class.find_by(parent_model_id_field => parent_model.id)
end
def create(attrs={})
child_class.create(
attrs.merge(
parent_model_id_field => parent_model.id
)
)
end
def parent_model_id_field
parent_class_name + "_id"
end
def parent_class_name
association.parent_class.name.split('::').last.underscore
end
def child_class
Object.const_get(association.child_class_name.singularize)
end
def id
parent_model.id
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems