[Resolved] Post submission form – Add minimum number of words to textarea

[Author]

Posts

[leilaG]

Hello, is it possible to set a minimum number of words to a textarea in Cred Post form?

<div class="form-group"><label>Description</label>
[cred_generic_field field='description' type='textarea' class='form-control' urlparam='']
{
"required":1,
"validate_format":0,
"default":""
}
[/cred_generic_field]

[Minesh]

Hello. Thank you for contacting the Toolset support.

Well - To validate the field type "textarea" actually there is no other validation other than "required" available with Generic field. So any extra validations you want needs to be added through the Forms API hook: cred_form_validate

More info:
https://toolset.com/documentation/programmer-reference/cred-api/#cred_form_validate

[leilaG]

Hi, do you have an example of a hook to set minimum characters allowed in a text field?

Thanks

[Minesh]

You mean maximum characters allowed - correct? Not minimum.

[leilaG]

No, we mean minimum characters, it's for our clients that send us news articles and some are sending us a news article with one paragraph, so we want to set a minimum amount of characters.

Is that possible?

Thanks

[Luo Yang]

Hello,

It is possible, for example:

add_filter('cred_form_validate','my_validation',999,2);
function my_validation($error_fields, $form_data)
{
    //field data are field values and errors
    list($fields,$errors)=$error_fields;

    //validate if specific form
    if ($form_data['id']==1234)
    {
        //check description value
        if (isset($fields['description']['value']) && mb_strlen ($fields['description']['value']) < 100 )
        {
            //set error message for my_field
            $errors['description']='You must input more than 100 characters';
        }
    }
    //return result
    return array($fields,$errors);
}

Please replace 1234 with your Toolset form ID

More help:
hidden link
Gets the length of a string.

[leilaG]

That worked perfectly 🙂

My issue is resolved now. Thank you!