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create return an active record object with erros instead of false when validation fails. [skip ci]

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Tony Jian 2014-07-21 16:48:37 +08:00
parent 08754f12e6
commit d0af905925
1 changed files with 5 additions and 4 deletions
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guides/source/active_record_basics.md
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@ -310,10 +310,10 @@ models and validate that an attribute value is not empty, is unique and not
already in the database, follows a specific format and many more.
Validation is a very important issue to consider when persisting to the database, so
the methods `create`, `save` and `update` take it into account when
the methods `save` and `update` take it into account when
running: they return `false` when validation fails and they didn't actually
perform any operation on the database. All of these have a bang counterpart (that
is, `create!`, `save!` and `update!`), which are stricter in that
is, `save!` and `update!`), which are stricter in that
they raise the exception `ActiveRecord::RecordInvalid` if validation fails.
A quick example to illustrate:
@ -322,8 +322,9 @@ class User < ActiveRecord::Base
validates :name, presence: true
end
User.create # => false
User.create! # => ActiveRecord::RecordInvalid: Validation failed: Name can't be blank
user = User.new
user.save # => false
user.save! # => ActiveRecord::RecordInvalid: Validation failed: Name can't be blank
```
You can learn more about validations in the [Active Record Validations