FormItBuilder Custom Validators

- 61 Posts
Josh Reply #1, 14 years, 2 months ago
I'm looking to get a custom validator working with a form I'm building via FormItBuilder.
(Revo 2.2.4-pl with FormItBuilder 1.3.2-pl)

I keep receiving an error when I try to do the following:
```
$ucup_formRules[] = new FormRule('wordCountUnder150', $ucup_fe_letter);
```
The error is

Fatal error: Uncaught exception 'Exception' with message 'Type "wordCountUnder150" not valid.
which implies to me I need to somehow create a rule type. Any leads on how to do that?

Based on what I could glean from the FormIt.Validators documentation, I thought I may have been doing that by including
```
$ucup_form->setCustomValidators('wordCountUnder150');
```
I'd also tried
```
$ucup_form->setValidate('wordCountUnder150');
```
The contents of wordCountUnder150 seems irrelevant at this stage because it errors even if the only contents are
```
<?php
return true;
```
Can anyone provide any guidance on what I might be doing wrong here?

(I am aware of the custom validator documentation at http://modxrevo.datawebnet.com.au/adding-your-own-custom-validation but was hoping to do this with a custom validator rather than a hook if that's possible.)
- 68 Posts
marcushouse Reply #2, 14 years, 2 months ago
Hi Josh,
If you look at how to do this in FormIt alone here
http://rtfm.modx.com/display/ADDON/FormIt.Validators
you will see that when makign a custom validator you need to first define the custom validators by using something like this
```
[[!FormIt? &customValidators=`isBigEnough`]]
```
you then need to actually define how to use the validator like this
```
[[!FormIt? &validate=`cost:isBigEnough`]]
```
FormItBuilder should allow you to set both of these properties together using both the methods you mentioned in your post however they both need to be used together.
```
$ucup_form->setCustomValidators('wordCountUnder150');
$ucup_form->setValidate('mytextarea:wordCountUnder150');
```
you would then write your snippet as shown in the FormIt documentation.

Feel free to contact me via
http://modxrevo.datawebnet.com.au/contact-support/
if you need assistance.