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Accessing Rails Form Errors in rails 2.x

Answer 1

+1 A:

@model_instance.errors.full_messages.to_sentence

Jed Schneider 2010-08-09 01:25:04

This seems close but it gives me: "Name can't be blank and City can't be blank" I'm looking for the full error message. When I display from the from I get "2 errors prohibited this location from being savedThere were problems with the following fields:Name can't be blankCity can't be blank"

Nick Faraday 2010-08-09 01:29:36

that is the full message on associated attributes. Have a look at my discussion here: http://jedschneider.posterous.com/validation-messages-on-associated-attributes

Jed Schneider 2010-08-09 01:39:01

This works... I just built a application helper method to format the array the same way the form helpers do. Seems a bit redundant as the form helper code already does this but this will work.

Nick Faraday 2010-08-10 06:11:07

would love to see your solution, since with my solution, i wasnt very happy about putting this code in the parent model.

Jed Schneider 2010-08-10 13:23:15

Can't really post code as a comment but here's the gist of it. I used your solution above to assign the error array to flash[:errors] in the controller. Then in my view I look to see if flash[:errors] is nil if not I display error_format(flash[:errors]). error_format is a helper method I wrote in application_helper that formats the error message with # errors occurred then an ol list. I use css to style from there. Hope that helps.

Nick Faraday 2010-08-10 18:00:01

Answer 2

A:

You may find error_messages_for and similar methods to be more convenient way to display errors in another place. More details here:
http://guides.rubyonrails.org/activerecord_validations_callbacks.html#displaying-validation-errors-in-the-view

What you want well may be already supported, as it's often the case with rails.

Nikita Rybak 2010-08-09 01:29:02

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Accessing Rails Form Errors in rails 2.x

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