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Exception: Mongoid::Errors::UnregisteredClass

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, MongoidError, StandardError
Instance Chain:
self, MongoidError, StandardError
Inherits: Mongoid::Errors::MongoidError
Defined in: lib/mongoid/errors/unregistered_class.rb

Overview

Raised when ::Mongoid tries to query the identifier to use for a given class in a polymorphic association, but the class has not previously been registered by resolver that was used for the query.

Here’s an example:

class Department
  include Mongoid::Document
  has_many :managers, as: :unit
end

class Manager
  include Mongoid::Document
  belongs_to :unit, polymorphic: :org
end

The Manager class is configured to use a custom resolver named :org when resolving the polymorphic unit association. However, the Department class is not registered with that resolver. When the program tries to associate a manager record with a department, it will not be able to find the required key in the :org resolver, and will fail with this exception.

The solution is to make sure the Department class is properly registered with the :org resolver:

class Department
  include Mongoid::Document
  identify_as resolver: :org
  has_many :managers, as: :unit
end

Constant Summary

MongoidError - Inherited

BASE_KEY

Class Method Summary

Instance Attribute Summary

MongoidError - Inherited

#problem, #resolution, #summary

Instance Method Summary

MongoidError - Inherited

#compose_message

Compose the message.
#translate

Given the key of the specific error and the options hash, translate the message.
#translate_problem

Create the problem.
#translate_resolution

Create the resolution.
#translate_summary

Create the summary.

Constructor Details

.new(klass, resolver) ⇒ UnregisteredClass

[ GitHub ] 

  


# File 'lib/mongoid/errors/unregistered_class.rb', line 36



def initialize(klass, resolver)
  super(
    compose_message(
      'unregistered_class',
      klass: klass,
      resolver: resolver.inspect
    )
  )
end