How can I define a custom validation rule ?

Hello there.

I wanted to use in my subscription form, a custom field, say a text one. This field needs to use a special validation rule to check its contents. I found on the internet the php script that executes the validation, and if the validation fails, produces an error message. Now I wonder how can I use all of this, i.e. create a custom text field that get validated by my own php script ?

Thanks in advance for the help!

Regards Andrea.

Hi Andrea

You will need to:

1. Go to Events Booking -> Custom Fields, add a new text custom field

2. Then look at the file components/com_eventbooking/controller/register.php, method validateFormData to add the custom PHP code you want to perform the validation

(You will need have good Joomla / PHP programming skill) to integrate this custom validation

Tuan

Hi Tuan, now you scared me

I'm not at all a good php programmer. I'm indeed not a php programmer. What I found on the internet, is the php script that does exactly what I need, that is I pass to this scripyt the string, and the output of the function is an error if the validation is not OK. I tried this into another event booking component I used until now and it worked well.

Now I switched to your component which has some features that the other did not have, so I would like to use the same validation rule in it.

I will start following your advices here and plug in my php script. Do you have somewhere an example of a custom validation rule inserted into the file you mentioned, so I can try and understand what the php function is expected to give as results/output for example and so on ? This would be a starting point for me.

Thanks!!

Ciao Andrea.

Now you scared me, too . Could you please attach the script you want to use here so that I can look at it to see whether it could be easy integrated into Events Booking so that I can try to see whether we could help you?

Tuan

LOL! Well, they said on the forum that you're very available and flexible and I must admit you are. Thank-you for your offer to help!

Attached is the script. Apart the inclusion into the official validation rules that you see in the file, you will then find 2 functions. Both return true if the validation is passed, or return false if the validation is not passed.

Again many thanks for offering your help!

Regards Andrea.