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author | Vishnu Atrai <vishnu.atrai@gmail.com> | 2011-08-05 20:15:48 +0530 |
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committer | Xavier Noria <fxn@hashref.com> | 2011-08-13 16:22:35 -0700 |
commit | 54cd73e20d5fe2c4168e04f9525b8793e9e3c64c (patch) | |
tree | c4a23b3d51139056588496e5e75ee180a93ba16b /railties/guides | |
parent | 56efdbc6260f49fdf8d82d8557f233a7df3beafa (diff) | |
download | rails-54cd73e20d5fe2c4168e04f9525b8793e9e3c64c.tar.gz rails-54cd73e20d5fe2c4168e04f9525b8793e9e3c64c.tar.bz2 rails-54cd73e20d5fe2c4168e04f9525b8793e9e3c64c.zip |
ActiveModel::Validations basic guide
Diffstat (limited to 'railties/guides')
-rw-r--r-- | railties/guides/source/active_model_basics.textile | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/railties/guides/source/active_model_basics.textile b/railties/guides/source/active_model_basics.textile index 404cc71c50..f3a2b2edbc 100644 --- a/railties/guides/source/active_model_basics.textile +++ b/railties/guides/source/active_model_basics.textile @@ -176,6 +176,30 @@ person.first_name_change #=> ["First Name", "First Name 1"] person.last_name_change #=> nil </ruby> +h4. Validations + +Validations module adds the ability to class objects to validate them in Active Record style. + +<ruby> +class Person + include ActiveModel::Validations + + attr_accessor :name, :email + + validates :name, :presence => true + validates_format_of :email, :with => /^([^\s]+)((?:[-a-z0-9]\.)[a-z]{2,})$/i + +end + +person = Person.new +person.valid? #=> false +person.name = 'vishnu' +person.email = 'me' +person.valid? #=> false +person.email = 'me@vishnuatrai.com' +person.valid? #=> true +</ruby> + h3. Changelog * August 5, 2011: Initial version by "Arun Agrawal":http://github.com/arunagw |