Sha256: bd9f80a68af13549efe93afd9bc132bd53106d89f4474566ec102d556d48eb53
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Versions: 8
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Stored size: 1.43 KB
Contents
require 'active_type/nested_attributes/association'
module ActiveType
module NestedAttributes
class AssignmentError < StandardError; end
class NestsOneAssociation < Association
def assign_attributes(parent, attributes)
return if attributes.nil?
attributes = attributes.with_indifferent_access
return if reject?(parent, attributes)
assigned_child = assigned_children(parent).first
destroy = truthy?(attributes.delete(:_destroy)) && @allow_destroy
if id = attributes.delete(:id)
assigned_child ||= fetch_child(parent, id)
if assigned_child
assigned_child.id = id
if assigned_child.id == assigned_child.id_was
assigned_child.attributes = attributes
else
raise AssignmentError, "child record '#{@target_name}' did not match id '#{id}'"
end
if destroy
assigned_child.mark_for_destruction
end
end
elsif !destroy
assigned_child ||= add_child(parent, build_child(parent, {}))
assigned_child.attributes = attributes
end
end
private
def add_child(parent, child)
parent[@target_name] = child
end
def assign_children(parent, children)
parent[@target_name] = children.first
end
def derive_class_name
@target_name.to_s.camelize
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems