[Gelöst] Not allow to create CPT if custom field already exists.
Dieser Thread wurde gelöst. Hier ist eine Beschreibung des Problems und der Lösung.
Problem: I have a Form that creates new posts in a custom post type. One of the custom fields holds a telephone number. I would like to prevent the Use from creating a post if the telephone number they submit already exists in the database as a telephone number for another post.
Solution: Use the Forms API hook cred_form_validate to inspect the submitted custom field value. Create a custom post query that also queries posts by that custom field value. If any posts are found in that query, display an error message on the telephone field.
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With the validation hook you can prevent the form from being submitted. Now to achieve this you will perhaps need to query the database for the entered value and see if any posts are returned with that meta value and then fail the form.
I have tried but I have not been able to find the solution.
add_filter('cred_form_validate','tj_validation_telefono_recomendado',10,2);
function tj_validation_telefono_recomendado ($error_fields, $form_data)
{
//field data are field values and errors
// list() va asignando asignando a las variables $fields y $errors los valores almacenados en el array $errors_fields
list($fields,$errors)=$error_fields;
//validate if specific form
if ($form_data['id']==377 || $form_data['id']==335) {
// Cogemos el valor del campo teléfono
$telefono = strval($fields['wpcf-telefono-recomendado']['value']);
// Realizamos una consulta a la base de datos para ver si existe el teléfono.
// Listamos todos los CPT 'recomendado' que tengan el key 'wpcf-telefono-recomendado' con value '$telefono'
$args = array(
'post-type' => 'recomendado',
'meta_query' => array(
array(
'key' => 'wpcf-telefono-recomendado',
'value' => $telefono,
'compare' => 'LIKE',
)
)
);
$query = new WP_Query($args);
// Si $query ha devuelto algún resultado (Si no está vacía la query es que ya existe el teléfono)
//empty($query)
if (!empty($query))
{
//set error message for my_field
$errors['telefono-recomendado']='Ya existe un recomendado con ese teléfono en nuestra Base de datos.';
}
}
//return result
return array($fields,$errors);
}
I think I already found the solution. It's works for me. How do you see it?
add_filter('cred_form_validate','tj_validation_telefono_recomendado',10,2);
function tj_validation_telefono_recomendado ($error_fields, $form_data)
{
//field data are field values and errors
// list() va asignando asignando a las variables $fields y $errors los valores almacenados en el array $errors_fields
list($fields,$errors)=$error_fields;
//validate if specific form
if ($form_data['id']==335) {
// Cogemos el valor del campo teléfono
$telefono = strval($fields['wpcf-telefono-recomendado']['value']);
// Vamos a coger todos los post que tengan el número de teléfono que hemos introducido. Si hay alguno lanzamos error.
$args = array(
'meta_key' => 'wpcf-telefono-recomendado',
'meta_value' => $telefono,
'post_type' => 'recomendado',
'post_status' => 'any',
'numberposts' => 1, // Con coger 1 nos vale para validar que el teléfono ya existe
);
// get_posts nos devuelve un array asociativo con todos los posts que cumplen las condiciones
$posts = get_posts($args);
// Debug
//error_log( 'FIELDS ----------------------');
//error_log( print_r( $fields, true) );
//error_log( 'TELÉFONO DEL RECOMENDADO ----------------------');
//error_log( print_r( $telefono, true) );
//error_log( 'POSTS ----------------------');
//error_log( print_r( $posts, true) );
// Si el array de posts no está vacío el número ya existe
if (!empty($posts))
{
//set error message for my_field
$errors['telefono-recomendado']='Ya existe un recomendado con ese teléfono en nuestra Base de datos. Para más información contacta con nosotros';
}
}
//return result
return array($fields,$errors);
}
Hi Shane is on vacation this week so I'm checking on his outstanding tickets. Looks like you have found a good solution to validate the post before submission by checking for existing custom field values. I think this will work pretty well, though telephone numbers are often entered with various formatting characters that could make validation a pain.
