diff options
Diffstat (limited to 'activerecord/lib/active_record/validations.rb')
-rw-r--r-- | activerecord/lib/active_record/validations.rb | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb index 26c1a9db93..d73fce9fd0 100644 --- a/activerecord/lib/active_record/validations.rb +++ b/activerecord/lib/active_record/validations.rb @@ -1,5 +1,5 @@ module ActiveRecord - # = Active Record Validations + # = Active Record RecordInvalid # # Raised by <tt>save!</tt> and <tt>create!</tt> when the record is invalid. Use the # +record+ method to retrieve the record which did not validate. @@ -18,6 +18,13 @@ module ActiveRecord end end + # = Active Record Validations + # + # Active Record includes the majority of its validations from <tt>ActiveModel::Validations</tt> + # all of which accept the <tt>:on</tt> argument to define the context where the + # validations are active. Active Record will always supply either the context of + # <tt>:create</tt> or <tt>:update</tt> dependent on whether the model is a + # <tt>new_record?</tt>. module Validations extend ActiveSupport::Concern include ActiveModel::Validations @@ -49,7 +56,14 @@ module ActiveRecord perform_validations(options) ? super : raise(RecordInvalid.new(self)) end - # Runs all the specified validations and returns true if no errors were added otherwise false. + # Runs all the validations within the specified context. Returns true if no errors are found, + # false otherwise. + # + # If the argument is false (default is +nil+), the context is set to <tt>:create</tt> if + # <tt>new_record?</tt> is true, and to <tt>:update</tt> if it is not. + # + # Validations with no <tt>:on</tt> option will run no matter the context. Validations with + # some <tt>:on</tt> option will only run in the specified context. def valid?(context = nil) context ||= (new_record? ? :create : :update) output = super(context) |