Module: Mongoid::Validations::ClassMethods

Defined in:
lib/mongoid/validations.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#validates_associated(*args) ⇒ Object

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

Examples:


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

  validates_associated :name, :addresses
end

Parameters:

  • *args (Array) —

    The arguments to pass to the validator.



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# File 'lib/mongoid/validations.rb', line 123

def validates_associated(*args)
  validates_with(AssociatedValidator, _merge_attributes(args))
end

#validates_format_of(*args) ⇒ Object

Validates the format of a field.

Examples:

class Person
  include Mongoid::Document
  field :title

  validates_format_of :title, with: /^[a-z0-9 \-_]*$/i
end

Parameters:

  • args (Array) —

    The names of the fields to validate.

Since:

  • 2.4.0



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# File 'lib/mongoid/validations.rb', line 105

def validates_format_of(*args)
  validates_with(FormatValidator, _merge_attributes(args))
end

#validates_length_of(*args) ⇒ Object

Validates the length of a field.

Examples:

class Person
  include Mongoid::Document
  field :title

  validates_length_of :title, minimum: 100
end

Parameters:

  • args (Array) —

    The names of the fields to validate.

Since:

  • 2.4.0



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# File 'lib/mongoid/validations.rb', line 174

def validates_length_of(*args)
  validates_with(Mongoid::Validations::LengthValidator, _merge_attributes(args))
end

#validates_presence_of(*args) ⇒ Object

Validates whether or not a field is present - meaning nil or empty.

Examples:

class Person
  include Mongoid::Document
  field :title

  validates_presence_of :title
end

Parameters:

  • args (Array) —

    The names of the fields to validate.

Since:

  • 2.4.0



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# File 'lib/mongoid/validations.rb', line 191

def validates_presence_of(*args)
  validates_with(PresenceValidator, _merge_attributes(args))
end

#validates_uniqueness_of(*args) ⇒ Object

Validates whether or not a field is unique against the documents in the database.

Examples:


class Person
  include Mongoid::Document
  field :title

  validates_uniqueness_of :title
end

Parameters:

  • *args (Array) —

    The arguments to pass to the validator.



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# File 'lib/mongoid/validations.rb', line 140

def validates_uniqueness_of(*args)
  validates_with(UniquenessValidator, _merge_attributes(args))
end