Module: ActiveModel::Validations::Callbacks::ClassMethods
- Defined in:
- lib/active_model/validations/callbacks.rb
Instance Method Summary collapse
-
#after_validation(*args, &block) ⇒ Object
Defines a callback that will get called right after validation.
-
#before_validation(*args, &block) ⇒ Object
Defines a callback that will get called right before validation.
Instance Method Details
#after_validation(*args, &block) ⇒ Object
Defines a callback that will get called right after validation.
class Person
include ActiveModel::Validations
include ActiveModel::Validations::Callbacks
attr_accessor :name, :status
validates_presence_of :name
after_validation :set_status
private
def set_status
self.status = errors.empty?
end
end
person = Person.new
person.name = ''
person.valid? # => false
person.status # => false
person.name = 'bob'
person.valid? # => true
person.status # => true
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# File 'lib/active_model/validations/callbacks.rb', line 97 def after_validation(*args, &block) = args. = .dup [:prepend] = true if .key?(:on) [:on] = Array([:on]) [:if] = Array([:if]) [:if].unshift ->(o) { !([:on] & Array(o.validation_context)).empty? } end set_callback(:validation, :after, *args, , &block) end |
#before_validation(*args, &block) ⇒ Object
Defines a callback that will get called right before validation.
class Person
include ActiveModel::Validations
include ActiveModel::Validations::Callbacks
attr_accessor :name
validates_length_of :name, maximum: 6
before_validation :remove_whitespaces
private
def remove_whitespaces
name.strip!
end
end
person = Person.new
person.name = ' bob '
person.valid? # => true
person.name # => "bob"
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# File 'lib/active_model/validations/callbacks.rb', line 56 def before_validation(*args, &block) = args. if .key?(:on) = .dup [:on] = Array([:on]) [:if] = Array([:if]) [:if].unshift ->(o) { !([:on] & Array(o.validation_context)).empty? } end set_callback(:validation, :before, *args, , &block) end |