I'd like to add a second "Save" button that saves the node as usual, but I can use a module to alter the node

Question

EDIT: Answered below.

Bit of a weird one. I'd like a second Save button that saves a node but that I could target with some php.

Save Save Progress Cancel

My use-case isn't as simple as using Autosave and I don't want to start installing WorkBench or any other module for a small feature.

I could have a taxonomy field above the save where users can choose, but really, I'd prefer a second Save button for UI reasons. I could also use jQuery and have psuedo-buttons that click the appropriate term and then the save button, but I'd rather do it programmatically.

Thanks.

Answer 1

I had to do this with a validate handler instead of a submit handler. I'm not sure of the implications of that but it works.

<?php

function custom_assignment_save_form_alter(&$form, $form_state, $form_id) {
    if ($form_id == "assignment_node_form") {
        $form['secondsubmit'] = array(
        '#type' => 'submit',
        '#value' => t('Save Progress'),
        '#weight' => 100,
        '#validate' => array('node_form_validate', 'custom_assignment_save_form_validate'),
        '#submit' => array('node_form_submit'),
      );
    }
}
function custom_assignment_save_form_validate($form, &$form_state) {
    form_set_value($form['field_boolean'], array(LANGUAGE_NONE => array(0 => array('value' => 1))), $form_state);
}

This simply changes a hidden boolean value when the Save Progress submit button is used.

Answer 2

You can add a custom submit handler and then your own callback to do whatever you want.

The basic approach is:

1. Using hook_form_alter() to target the relevant form, add another submit button that calls your callback function.
2. Write the callback function to do whatever you want to do.

Here's an example:

function my_module_form_alter(&$form, $form_state, $form_id) {
  $form['#submit'][] = "my_module_form_submit_handler";
}

function my_module_form_submit_handler($form, &$form_state) {
  drupal_set_message("The form is being submitted, do some extra stuff now...");
}