Comments on: Sexy Validation in Edge Rails (Rails 3)

By: Jamie

Jamie — Tue, 31 Aug 2010 22:52:47 +0000

@Ravicious I believe your email validator would need to support the :allow_nil option.

By: Ravicious

Ravicious — Tue, 31 Aug 2010 18:27:27 +0000

Hi,

What about :allow_nil? I’ve tried `validates :email, :email => {:allow_nil => true}`, but it hasn’t worked.

By: Ruby on Rails / [Перевод] Ruby on Rails 3 — Заметки к финальному релизу

Ruby on Rails / [Перевод] Ruby on Rails 3 — Заметки к финальному релизу — Sun, 29 Aug 2010 20:13:02 +0000

[...] Sexy Validation in Rails 3 [...]

By: Ruby on Rails / Ruby on Rails 3 — Заметки к финальному релизу

Ruby on Rails / Ruby on Rails 3 — Заметки к финальному релизу — Sun, 29 Aug 2010 19:46:53 +0000

[...] Sexy Validation in Rails 3 [...]

By: Jamie

Jamie — Wed, 26 May 2010 12:41:15 +0000

@Lisinge The uniqueness validator is case sensitive by default so you could do something like:

validates :name, :uniqueness => true

…or if you wanted it not to be case sensitive:

validates :name, :uniqueness => { :case_sensitive => false }

By: Lisinge

Lisinge — Thu, 20 May 2010 16:39:45 +0000

How can i validate case sensitive uniqueness with sexy validation?

By: Jamie

Jamie — Wed, 19 May 2010 13:35:16 +0000

@Thomas Williams To suppress the numericality validator based on the outcome of a given method you would do:

validates :width, :numericality => { :unless => :fullscreen? }

You can supply a hash with any options that validates_numericality_of accepts. The “:numericality => true” simply says use the numericality validator, whereas “:numericality => my_options_hash” passes any options to the validator… think of the “validates” method as a shortcut to the “validates_?_of” methods.

Hope this helps.

By: Thomas Williams

Thomas Williams — Wed, 19 May 2010 13:20:38 +0000

Jamie,
Is there a way to suppress a single / all validations based on a condition. For example

validates :width, :numericality => true, :unless => :fullscreen?

In a similar way to what I can do with the old school validates_numericality_of method?

By: Jamie

Jamie — Thu, 01 Apr 2010 20:06:48 +0000

@Joe Yes that will work too.

By: Joe Smith

Joe Smith — Thu, 01 Apr 2010 19:58:41 +0000

Jamie, wouldn’t the correct syntax for what ahe wanted be:
validates :price, :numericality => {:greater_than => 100}

or something like that? If that is not implemented then it really should be. I mean, that is clearly the right way to pass in options for a validator, and it fits well with true if no options need to be specified, since a hash is definitely a true value in ruby.