Added functionality to preview the custom certificate

edit.php

@@ -181,6 +181,11 @@ if ($data = $mform->get_data()) {
         }
     }
 
+    // Check if we want to preview this custom certificate.
+    if (!empty($data->previewbtn)) {
+        customcert_generate_pdf($customcert, $USER->id);
+    }
+
     // Redirect to the editing page to show form with recent updates.
     $url = new moodle_url('/mod/customcert/edit.php', array('cmid' => $cmid));
     redirect($url);

edit_form.php

@@ -83,6 +83,7 @@ class mod_customcert_edit_form extends moodleform {
         // Add the submit buttons.
         $group = array();
         $group[] = $mform->createElement('submit', 'submitbtn', get_string('savechanges'));
+        $group[] = $mform->createElement('submit', 'previewbtn', get_string('savechangespreview', 'customcert'));
         $mform->addElement('group', 'submitbtngroup', '', $group, '', false);
 
         $mform->addElement('hidden', 'id');

elements/element.class.php

@@ -15,6 +15,8 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
 
+require_once($CFG->dirroot . '/mod/customcert/includes/tcpdf_colors.php');
+
 /**
  * The base class for the customcert elements.
  *

lang/en/customcert.php

@@ -75,6 +75,7 @@ $string['posx_help'] = 'This is the position in pixels from the top left corner
 $string['posy'] = 'Postion Y';
 $string['posy_help'] = 'This is the position in pixels from the top left corner you wish the element to display in the y direction.';
 $string['save'] = 'Save';
+$string['savechangespreview'] = 'Save changes and preview';
 $string['savetemplate'] = 'Save template';
 $string['setprotection'] = 'Set protection';
 $string['setprotection_help'] = 'Choose the actions you wish to prevent users from performing on this certificate.';

lib.php

@@ -802,6 +802,8 @@ function customcert_generate_code() {
 function customcert_generate_pdf($customcert, $userid) {
     global $CFG, $DB;
 
+    require_once($CFG->libdir . '/pdflib.php');
+
     // Get the pages for the customcert, there should always be at least one page for each customcert.
     if ($pages = $DB->get_records('customcert_pages', array('customcertid' => $customcert->id), 'pagenumber ASC')) {
         // Create the pdf object.

view.php

@@ -25,8 +25,6 @@
 
 require_once('../../config.php');
 require_once($CFG->dirroot . '/mod/customcert/lib.php');
-require_once($CFG->libdir . '/pdflib.php');
-require_once($CFG->dirroot . '/mod/customcert/includes/tcpdf_colors.php');
 
 $id = required_param('id', PARAM_INT);
 $action = optional_param('action', '', PARAM_ALPHA);