Sha256: 12608eca40c2108c29af5509e94cf39d73162d119b43ed7935c75f0852c92d85
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Size: 1.44 KB
Versions: 8
Compression:
Stored size: 1.44 KB
Contents
module Her
module Model
module NestedAttributes
extend ActiveSupport::Concern
module ClassMethods
# Allow nested attributes for an association
#
# @example
# class User
# include Her::Model
#
# has_one :role
# accepts_nested_attributes_for :role
# end
#
# class Role
# include Her::Model
# end
#
# user = User.new(name: "Tobias", role_attributes: { title: "moderator" })
# user.role # => #<Role title="moderator">
def accepts_nested_attributes_for(*association_names)
allowed_association_names = associations.inject([]) { |memo, (name, details)| memo << details }.flatten.map { |a| a[:name] }
association_names.each do |association_name|
unless allowed_association_names.include?(association_name)
raise Her::Errors::AssociationUnknownError.new("Unknown association name :#{association_name}")
end
class_eval <<-RUBY, __FILE__, __LINE__ + 1
if method_defined?(:#{association_name}_attributes=)
remove_method(:#{association_name}_attributes=)
end
def #{association_name}_attributes=(attributes)
self.#{association_name}.assign_nested_attributes(attributes)
end
RUBY
end
end
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems