Class: Mongoid::Validations::AssociatedValidator

Inherits:
ActiveModel::EachValidator
  • Object
show all
Defined in:
lib/mongoid/validations/associated.rb

Overview

Validates whether or not an association is valid or not. Will correctly handle has one and has many associations.

Examples:

Set up the association validations.


class Person
  include Mongoid::Document
  embeds_one :name
  embeds_many :addresses

  validates_associated :name, :addresses
end

Instance Method Summary collapse

Instance Method Details

#validate_each(document, attribute, value) ⇒ Object

Validates that the associations provided are either all nil or all valid. If neither is true then the appropriate errors will be added to the parent document.

Examples:

Validate the association.

validator.validate_each(document, :name, name)

Parameters:

  • document (Document) —

    The document to validate.

  • attribute (Symbol) —

    The relation to validate.

  • value (Object) —

    The value of the relation.



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# File 'lib/mongoid/validations/associated.rb', line 29

def validate_each(document, attribute, value)
  begin
    document.begin_validate
    valid = Array.wrap(value).collect do |doc|
      if doc.nil?
        true
      else
        doc.validated? ? true : doc.valid?
      end
    end.all?
  ensure
    document.exit_validate
  end
  document.errors.add(attribute, :invalid) unless valid
end