Page Arguments

With page_arguments, we can create dynamic paths for custom pages and page events. This allows us to use one path to handle a wide variety of contexts about users, nodes, views contextual filters, etc.

Say for example we wanted to create a user dashboard that was unique to each Drupal user account. We'll make our page path handle a page like this: user-dashboard/123, where 123 is the id of a Drupal user account. Looking at this path, we can split it into two parts:

• user-dashboard (part 0)
• 123 (part 1)

Since we want to pass along 123 to our page_callback, we identify part 1 of the path to pass along to our custom page:

my_module.js

/**
 * Implements hook_menu().
 */
function my_module_menu() {
  var items = {};
  items['user-dashboard/%'] = {
    title: 'User dashboard',
    page_callback: 'my_module_user_dashboard_page',
    page_arguments: [1],
    pageshow: 'my_module_user_dashboard_pageshow'
  };
  return items;
}

/**
 * The user dashboard page callback.
 * @param uid
 * @returns {{}}
 */
function my_module_user_dashboard_page(uid) {
  var content = {};

  // Build an empty container where the user dashboard will go.
  var attributes = {
    id: my_module_user_dashboard_container_id(uid),
    class: 'user-dashboard'
  };
  content['my_widget_container'] = {
    markup: '<div ' + drupalgap_attributes(attributes) + '>' +
      'Loading dashboard...' +
    '</div>'
  };

  return content;
}

/**
 * The user dashboard pageshow event handler.
 * @param uid
 */
function my_module_user_dashboard_pageshow(uid) {

  // Load the user account...
  user_load(uid, {
    success: function(account) {

      // Render their dashboard.
      var msg = theme('header', {
        text: account.name
      });

      // Inject it into the container.
      var container_id = my_module_user_dashboard_container_id(uid);
      $('#' + container_id).html(msg).trigger('create');

    }
  });
}

/**
 * Returns a unique html element id to use for an individual user's dashboard div container.
 * @param uid
 * @returns {string}
 */
function my_module_user_dashboard_container_id(uid) {
  return 'user-dashboard-' + uid;
}

Other Techniques

Using the pageshow and page_arguments technique listed above, we can also easily load nodes or any other type of entity. Keep in mind DrupalGap already has built in pages for the following paths to allow for easy creation, viewing and editing of entities:

• node/%, node/%/view, node/%/edit
• node/add, node/add/%
• user/%, user/%/view, user/%/edit
• comment/%, comment/%/view, comment/%/edit
• taxonomy/%, taxonomy/%/view, taxonomy/%/edit
• taxonomy/vocabulary/%, taxonomy/vocabulary/%/view, taxonomy/vocabulary/%/edit

We can also manually display a Views JSON using this same technique, or for more power use a Views Render Array.