module CustomFields::Types::HasMany::Target::ClassMethods

Public Instance Methods

apply_has_many_custom_field(klass, rule) click to toggle source

Adds a has_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

# File lib/custom_fields/types/has_many.rb, line 28
def apply_has_many_custom_field(klass, rule)
  # puts "#{klass.inspect}.has_many #{rule['name'].inspect}, class_name: #{rule['class_name'].inspect}, inverse_of: #{rule['inverse_of']}, order_by: #{rule['order_by'].inspect}" # DEBUG
  position_name = "position_in_#{rule['inverse_of']}"

  _order_by   = rule['order_by'] || position_name.to_sym.asc
  _inverse_of = rule['inverse_of'].blank? ? nil : rule['inverse_of'] # an empty String can cause weird behaviours

  klass.has_many rule['name'], class_name: rule['class_name'], inverse_of: _inverse_of, order: _order_by,
                               validate: false do
    def filtered(conditions = {}, order_by = nil)
      list = conditions.empty? ? unscoped : where(conditions)

      list.order_by(order_by || association.options[:order])
    end
    alias_method :ordered, :filtered # backward compatibility + semantic purpose
  end

  klass.accepts_nested_attributes_for rule['name'], allow_destroy: true

  return unless rule['required']

  klass.validates_collection_size_of rule['name'], minimum: 1, message: :at_least_one_element, on: :update
end
filtered(conditions = {}, order_by = nil) click to toggle source
# File lib/custom_fields/types/has_many.rb, line 37
def filtered(conditions = {}, order_by = nil)
  list = conditions.empty? ? unscoped : where(conditions)

  list.order_by(order_by || association.options[:order])
end