# Validating elements created via JS **URL:** \ **Category:** Deployment\ **Created:** [June 17, 2008, 3:04am UTC](https://www.ruby-forum.com/t/validating-elements-created-via-js/140647 "2008-06-17T03:04:47Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![galeal](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/8c91f0/32.png) [@galeal](https://www.ruby-forum.com/u/galeal)\ **Post date:** [June 17, 2008, 3:04am UTC](https://www.ruby-forum.com/t/validating-elements-created-via-js/140647/1 "2008-06-17T03:04:47Z")
I have a link on a form that allows for infinite new records to be created. i.e. Clicking “Add new record” basically renders the \_new partial and appends it to a div. The model contains validates\_uniqueness\_of and validates\_presence\_of a few fields. This is all well and good, however, when validation fails at the model level, the users don’t get any feedback or explanation as to why the creation of the model failed. Is there a technique for validating these types of records? and giving the user some sort of feedback? TIA ---
**Author:** ![galeal](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/8c91f0/32.png) [@galeal](https://www.ruby-forum.com/u/galeal)\ **Post date:** [June 17, 2008, 3:15am UTC](https://www.ruby-forum.com/t/validating-elements-created-via-js/140647/2 "2008-06-17T03:15:54Z")
On Mon, Jun 16, 2008 at 6:04 PM, Luke G. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > level, the users don’t get any feedback or explanation as to why the > creation of the model failed. > > Is there a technique for validating these types of records? and giving > the user some sort of feedback? > > ## TIA Can you provide some examples of how/why it would fail at the model level? (error messages if any). Anthony E. 408-656-2473 [http://anthony.ettinger.name](http://anthony.ettinger.name) ---
**Author:** ![galeal](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/8c91f0/32.png) [@galeal](https://www.ruby-forum.com/u/galeal)\ **Post date:** [June 17, 2008, 3:20am UTC](https://www.ruby-forum.com/t/validating-elements-created-via-js/140647/3 "2008-06-17T03:20:50Z")
Anthony E. wrote: > Can you provide some examples of how/why it would fail at the model > level? (error messages if any). It fails simply because the new record is not valid, i.e. missing a field, or a a field does not contain a unique value. ---
**Author:** ![galeal](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/8c91f0/32.png) [@galeal](https://www.ruby-forum.com/u/galeal)\ **Post date:** [June 17, 2008, 9:28am UTC](https://www.ruby-forum.com/t/validating-elements-created-via-js/140647/4 "2008-06-17T09:28:16Z")
Hi Luke, On 17.6.2008, at 4.04, Luke G. wrote: > level, the users don’t get any feedback or explanation as to why the > creation of the model failed. How so? Are you sending the form via Ajax? If yes, do you use Ajax.Request or Updater? Anyway, you have plenty of options. If you are using Ajax, you can use RJS (or return plain javascript) that replaces the form with one with all the error messages. It can also add another error message to the page. If you’re not using ajax, just render the form again just like the standard resource scaffolding does and it will display the errors. > Is there a technique for validating these types of records? and giving > the user some sort of feedback? Well, you must send the data to the server, right? So you have exactly the same mechanisms as always at your disposal. Only relaying them to the UI is a bit different and perhaps trickier. //jarkko – Jarkko L. > **[jlaine.net](https://jlaine.net/)** > > Your freedom to carry a gun messes with my freedom to walk around without fear. Your freedom to “stand your ground” with force is at odds with my … > **[Home](https://dotherightthing.com/)** > > do the right thing [http://www.railsecommerce.com](http://www.railsecommerce.com) [http://odesign.fi](http://odesign.fi)