Validations for a Code type field

That is always going to validate. The IF condition is a simple if ( $CODE_RETURN_VALUE ). Since you're returning a value other than false, null, or 0 it's going to validate as valid.


That is always going to be invalid since you're always returning false UNLESS the field is marked not required and no value has been supplied. I have already tested this on our demo site and it works perfectly fine.

I don't know what more to tell you. It's a simple FALSE if you want to invalidate the input or TRUE if you want to validate it. Your code should do whatever PHP validation you want and it should then do a return of true or false. Do not return anything other than true or false. The parameter specifically tells you this.

Please PM backend super administrator login credentials and will prepare test cases on your site for you to see it working for your self.

I thnk you're missing the 'context' of those entries.

As I noted the "$result = 'the answer';" code is in the parameters | code area - the code that sets the value of the field.

The "$result = false" code is in the integration area.

Doesn't the integration area control the validation all by itself?
Why would setting the value of the field have anything to do with the validation (other than related to the value actually being entered - i.e. 'required')?

Are you trying to add code validation to a code field? I don't understand. A code field has no validation or edit display at all. It just outputs the results of your code. The code validation is for fields with actual user input (e.g. a text field for example).

AHHHHHH.

YES I was trying to use the validation area on a code field type.
Mainly because there was no documentation that said I couldn't.

So I'm guessing that I just need to write the validation code into the element code.

However, I'm guessing that it means that I'm on my own for trying to alert the user when the code creates an invalid value (using joomla notifications).
(Or is there a way I can somehow hook into the SuccessMessage/ErrorMesage display process from within my own code).

OR ... is there an 'onBeforeUserProfileSave' trigger (that only is called during the registration process) that I can use to just run a validation via auto actions?
(is that onBeforeUserProfileSaveREquest? - it's really hard to know exactly when all these triggers happen)

BTW .... I don't think I've ever explained the use-case:

Field 1: Text entry
Field 2: Text entry
Field 3: Text entry
Field 4: CODE (creates a CONCAT of fields 1,2,3)

Validation #1 needed: check the calculated value of Field 4 against a database table of 'bad words' (fail if it finds the Field 4 value in the table)
Validation #2 needed: check the value of Field 4 to make sure nobody else has a an identical value.

Your code field shouldn't notify them of a PHP error to begin with as it's of no use to an end user UX wise. It should simply return null if there's nothing valid to output. You can not validate a code field as it's just your custom PHP being output and there's no user input to validate. Fields 1-3 would be where you put any necessary validation

I suppose if you still want to output an error you'd just do it as a return. For example your return could even be an alert as follows.