how to validate contact form by custom field

[henro]

hi all,
i want to validate contact form, where the field i want to validate is by custom field,

i have readed this
http://wiki.civicrm.org/confluence/display/CRMDOC/hook_civicrm_validateForm

its very help,
but the example field validated there is by " addres " field and as i know it is not a custom field .

this the warning i face

 
    Notice: Undefined index: custom_9 in myextension_civicrm_validateForm() (line 119 of C:\xampp\htdocs\drupal\extentions\com.example.myextension\myextension.php).
    Warning: Invalid argument supplied for foreach() in myextension_civicrm_validateForm() (line 119 of C:\xampp\htdocs\drupal\extentions\com.example.myextension\myextension.php).




could anyone give to me an example to validate form conctac by custom field

thanks in advance

[DaveFF]

Looking at what happens on my test system, when custom fields are coming back in $fields they have another number after them (eg. I'm getting custom_150_21, custom_151_21, custom_152_21). This didn't appear to be the entity ID (22 in my test case) or the custom group ID (19 in my test case).

I'd suggest temporarily putting a debugging watchdog statement:

Code: [Select]

watchdog('yourextension', print_r($fields, TRUE), array(), WATCHDOG_DEBUG);in your hook function so you can see what is coming back in $fields.

Edit: I think that extra number is the id of the row in the particular custom group table where that custom data lives.

[henro]

Thank a lot DaveFiFcode very useful,
i change TRUE be False , and the all of that field name appear in the form

eventhough i cannot solve validation by custom field but i think i have solved my issue by main field in contact form.

thanks again