Adding custom message on model validation in rails 3

Rails
1

Hi,
I am developing an application in rails 3.0

I have post Model
class Post < ActiveRecord::Base
validates :name , :presence => true
end

I have added the presence of validation on post name.
It shows me error that “Name can’t be blank”

I have to give the custom message for the user so I have written like as
follows:-

class Post < ActiveRecord::Base
validates :name , :presence => true , :message=>“Post name can’t be
blank.”
end

But it is giving me error:-
“Unknown validator: ‘message’”

Can anyone tell me How to give the custom message in rails 3 model
validations?

Thanks,
Mike

2

Hey,
I don’t want to use the javascript, as rails directly provides us
validations then why should we write code.

Is there anyone know how to add custom message on model validation in
rails 3.0.0

Thanks,
Mike.

3

I think differently: Why can’t you use JavaScript to check for a blank
field?

Regards,

Edmond
Software Developer | Baobab Health Trust (http://www.baobabhealth.org/)
|
Malawi

Cell: +265 999 465 137 | +265 881 234 717

“Many people doubt open source software and probably don’t realize that
there is an alternative… which is just as good…” – Kevin Scannell

2010/9/20 Mike D. [email protected]

4

Please quote when replying.

Edmond K. wrote:

I think differently: Why can’t you use JavaScript to check for a blank
field?

No way! JavaScript validations should never be relied on – it’s too
easy for the client to turn them off and bypass them, or to submit a
crafted GET or POST request that bypasses the HTML form entirely.
Validation must be done on the server side.

Regards,

Edmond

Best,

Marnen Laibow-Koser
http://www.marnen.org
[email protected]

5

Hi,

try the following:

class Post < ActiveRecord::Base
validates :name , :presence => { :message=>“Post name can’t be
blank.”
}
end

Maksim.

Am 20.09.2010 14:49, schrieb Mike D.:

Can anyone tell me How to give the custom message in rails 3 model
validations?

Thanks,
Mike

–
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6

Hi,
Your solution is working but the message is coming like this:-

“Name Post name can’t be blank.”

My model post.rb is:-

class Post < ActiveRecord::Base
validates :name , :presence => { :message=>“Post name can’t be
blank.”}
validates :title, :presence => true, :length => { :minimum => 5 }
has_many :comments , :dependent => :destroy
end

7

On 23 September 2010 11:09, Mike D. [email protected] wrote:

Hi,
Your solution is working but the message is coming like this:-

What solution, from whom? You did not quote the previous message so
no-one knows what you are talking about.

Colin

8

Yes.
I am talking about the Maksim solution.

9

Hi,

it’s the default error_message_on behavior. You can try to override it.
Another solution could be to write your message without the attribute:
just “can’t be blank.”, so you get “Name can’t be blank”.

Hope it helps you. Regards,
Maksim.

Am 23.09.2010 12:09, schrieb Mike D.: