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Contents
module CustomFields
module Types
module ManyToMany
module Field
extend ActiveSupport::Concern
included do
def many_to_many_to_recipe
{ 'class_name' => self.class_name, 'inverse_of' => self.inverse_of, 'order_by' => self.order_by }
end
def many_to_many_is_relationship?
self.type == 'many_to_many'
end
end
end
module Target
extend ActiveSupport::Concern
module ClassMethods
# Adds a many_to_many relationship between 2 mongoid models
#
# @param [ Class ] klass The class to modify
# @param [ Hash ] rule It contains the name of the relation and if it is required or not
#
def apply_many_to_many_custom_field(klass, rule)
# puts "#{klass.inspect}.many_to_many #{rule['name'].inspect}, :class_name => #{rule['class_name'].inspect} / #{rule['order_by']}" # DEBUG
klass.has_and_belongs_to_many rule['name'], :class_name => rule['class_name'], :inverse_of => rule['inverse_of'], :order => rule['order_by'] do
def filtered(conditions = {}, order_by = nil)
list = conditions.empty? ? self : self.where(conditions)
if order_by
list.order_by(order_by)
else
# use the natural order given by the initial array (ex: project_ids).
# Warning: it returns an array and not a criteria object meaning it breaks the chain
ids = base.send(metadata.key.to_sym)
list.entries.sort { |a, b| ids.index(a.id) <=> ids.index(b.id) }
end
end
alias :ordered :filtered # backward compatibility + semantic purpose
end
if rule['required']
klass.validates_length_of rule['name'], :minimum => 1
end
end
end
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems