Custom Form Validation

This thread is resolved. Here is a description of the problem and solution.

Problem: I would like to add some custom validation to a Form with two custom date fields. I would like to validate it such that the start date is before the end date. How can I access the date value in the $error_fields parameter?

Solution: Use the following syntax to access the Unix timestamp for a datepicker field:

add_filter('cred_form_validate','start_end_date',10,2);
function start_end_date($error_fields, $form_data)
{
//field data are field values and errors
list($fields,$errors)=$error_fields;
...
$fields['wpcf-date-start']['value']['datepicker']

Relevant Documentation:
https://toolset.com/documentation/programmer-reference/cred-api/

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Tagged: CRED API, Toolset Forms

This topic contains 2 replies, has 2 voices.

Last updated by hui-suanC 5 years, 6 months ago.

Assisted by: Christian Cox.

Author

Posts

June 29, 2019 at 3:52 pm #1280165

hui-suanC

Tell us what you are trying to do?

> I am trying to validate a datetime field, such that the end date must be later than the start date

Is there any documentation that you are following?

https://toolset.com/documentation/programmer-reference/cred-api/

This is the code which I am using:

add_filter('cred_form_validate','start_end_date',10,2);
function start_end_date($error_fields, $form_data)
{
//field data are field values and errors
list($fields,$errors)=$error_fields;
//uncomment this if you want to print the field values
// print_r($fields);

//validate if the form is for Creating or Updating an event
if ($form_data['id']==63 || $form_data['id']==76)
{
//check that T and C is checked value
if ($fields['wpcf-agree']['value']!=1)
{
//set error message for my_field
$errors['wpcf-agree']='You must agree to the Terms and Conditions';
}

// I am not sure whether to use 'value' or datepicker, but the end date MUST be later than the start date
if ($fields['wpcf-date-start']['datepicker'] > $fields['wpcf-date-end']['datepicker'])
{
//set error message for date-start
$errors['wpcf-date-start']='Start date must be before the end date.';
}

}
//return result
return array($fields,$errors);
}

June 30, 2019 at 2:29 pm #1280351

Christian Cox

Hi, you can access the Unix timestamp of the selected date like this:

$fields['wpcf-date-start']['value']['datepicker']

If nothing is selected, this value will be empty.

July 5, 2019 at 9:50 am #1284751

hui-suanC

My issue is resolved now. Thank you!