Sha256: ac9fecee0a6e930f25ca9c466d12ad1e6e90d1d1c7631265c5a4fbd8e82a4001
Contents?: true
Size: 1.15 KB
Versions: 16
Compression:
Stored size: 1.15 KB
Contents
# encoding: utf-8
module Mongoid #:nodoc:
module NamedScope
# Creates a named_scope for the +Document+, similar to ActiveRecord's
# named_scopes. +NamedScopes+ are proxied +Criteria+ objects that can be
# chained.
#
# Example:
#
# class Person
# include Mongoid::Document
# field :active, :type => Boolean
# field :count, :type => Integer
#
# named_scope :active, :where => { :active => true }
# named_scope :count_gt_one, :where => { :count.gt => 1 }
# named_scope :at_least_count, lambda { |count| { :where => { :count.gt => count } } }
# end
def named_scope(name, conditions = {}, &block)
name = name.to_sym
scopes[name] = Scope.new(conditions, &block)
(class << self; self; end).class_eval <<-EOT
def #{name}(*args)
scope = scopes[:#{name}]
scope.extend(criteria.fuse(scope.conditions.scoped(*args)))
end
EOT
end
alias :scope :named_scope
# Return the scopes or default to an empty +Hash+.
def scopes
read_inheritable_attribute(:scopes) || write_inheritable_attribute(:scopes, {})
end
end
end
Version data entries
16 entries across 16 versions & 2 rubygems