Including multiple authors in Authoring information for a Drupal 7 node

Question

I have a CMS to which many people can possibly provide data. So, I would want to include all the users who have contributed the data for a node by adding new data or moderating existing data, because everyone who contributed for a node deserve themselves to be undersigned. Right now, only the first person who creates the content would be the rightful author.

How can I achieve this?

I have googled but could not get much help. The closest I could find was this, which still goes unanswered. I have checked Entity Reference module but I could not get it to auto-fill the author whenever a user edits an existing node.

I have automatic revisions enabled, which means I do have the information of each author for a node who have contributed. But how do I pull each author out of the revision information and display the collection of all authors & contributors in a nice manner at the end of each article?

Please help me find a solution, I am not that well versed with PHP programming.

Thanks & Regards,
Raj Pawan G

Answer 1

I accomplished this by the following steps:

1. Download and enable the Rules module and the Entity Reference module.
2. Add a field called "Foo" to your content type. Field type: Entity Reference. Target type: user.
3. Create a new Rule.
   1. Add event: "Before saving content"
   2. Add condition: Data comparison. Parameter: Data to compare: [node:type], Data value: bar (Where "bar" = your content type's name)
   3. Add action: Add an item to a list. List: [node:field-foo], Item to add: [site:current-user]

Now every time content is saved, the user who saved it will be added to the list of editors of that page.

Answer 2

Here is a custom .module that does the task for a content type called wiki_page. The content type has a multi-valued text field called field_editors. Put field_editors on a display mode, and the list will appear. No Views work needed.

/** * @file * Keep track of the users who have edited a wiki page. * * @todo Check whether the page content has changed. */

/** * Implements hook_form_FORM_alter(). */ function cyco_remember_editors_form_wiki_page_node_form_alter( &$form, $form_state ) { $form['#submit'][] = '_cyco_remember_editors_wiki_submit'; $form['field_editors']['#access'] = FALSE; }

/** * Add current user to list of editors if not already there. */ function _cyco_remember_editors_wiki_submit( $form, &$form_state ) { global $user; //Editor is current user. $editor_name = $user->name; //Flag to show whether the editor is already in the list. $editor_in_list = FALSE; $language = $form['#entity']->language; $num_editors = 0; //Are any editors listed? if ( isset($form['#entity']->field_editors[$language][0]['value']) ) { //Yes - see whether the current editor is already in the list. $current_values = $form['#entity']->field_editors[$language]; $num_editors = sizeof( $current_values ); for( $index = 0; $index < $num_editors; $index ++ ) { if ( $current_values[$index]['value'] == $editor_name ) { //Editor is already listed. $editor_in_list = TRUE; break; } } } if ( ! $editor_in_list ) { //Current editor is not in the list. Add him/her. $form_state['values']['field_editors'][$language][$num_editors]['value'] = $editor_name; } }