Add option to delete certificate

plugin/customcertificate/lang/english.php

@@ -71,3 +71,6 @@ $strings['InfoFromDefaultCertificate'] = "The content of the certificate is base
 $strings['to'] = " to ";
 $strings['formatDownloadDate'] = " to %sth %s, %s";
 $strings['PrintCertificate'] = "Print certificate";
+$strings['QuestionDelete'] = "Do you want to delete the specific diploma and use the default certificate?";
+$strings['SuccessDelete'] = "Successfully deleted";
+$strings['ProblemDelete'] = "Problem deleting the certificate";

plugin/customcertificate/lang/spanish.php

@@ -73,3 +73,7 @@ $strings['to'] = " a ";
 $strings['formatDownloadDate'] = " a %s de %s de %s";
 $strings['MessageUpdate'] = "El proceso de actualización ha terminado";
 $strings['PrintCertificate'] = "Imprimir certificado";
+$strings['QuestionDelete'] = "¿Desea eliminar el diploma específico y volver a usar el certificado por defecto?";
+$strings['SuccessDelete'] = "Borrado con éxito";
+$strings['ProblemDelete'] = "Hubo un problema al borrar el certificado";
+

plugin/customcertificate/src/CustomCertificatePlugin.php

@@ -285,4 +285,48 @@ class CustomCertificatePlugin extends Plugin
             }
         }
     }
+
+    /**
+     * Get certificate info.
+     *
+     * @param int $courseId
+     * @param int $sessionId
+     * @param int $accessUrlId
+     *
+     * @return array
+     */
+    public static function getInfoCertificate($courseId, $sessionId = 0, $accessUrlId = 1)
+    {
+        $table = Database::get_main_table(self::TABLE_CUSTOMCERTIFICATE);
+        $sql = "SELECT * FROM $table
+                WHERE c_id=$courseId AND session_id=$sessionId AND access_url_id=$accessUrlId";
+        $result = Database::query($sql);
+        $result_array = [];
+        if (Database::num_rows($result) > 0) {
+            $result_array = Database::fetch_array($result);
+        }
+        
+        return $result_array;
+    }
+
+    /**
+     * Get default certificate info.
+     *
+     * @param int $accessUrlId
+     *
+     * @return array
+     */
+    public static function getInfoCertificateDefault($accessUrlId)
+    {
+        $table = Database::get_main_table(self::TABLE_CUSTOMCERTIFICATE);
+        $sql = "SELECT * FROM $table
+        WHERE certificate_default=1 AND access_url_id=$accessUrlId";
+        $result = Database::query($sql);
+        $result_array = [];
+        if (Database::num_rows($result) > 0) {
+            $result_array = Database::fetch_array($result);
+        }
+        
+        return $result_array;
+    }
 }

plugin/customcertificate/src/index.php

@@ -1,6 +1,7 @@
 <?php
 /* For licensing terms, see /license.txt */
 
+$useDefault = false;
 $isDefault = isset($_GET['default']) ? (int) $_GET['default'] : null;
 
 if ($isDefault === 1) {
@@ -64,16 +65,34 @@ $htmlHeadXtra[] = api_get_asset('cropper/dist/cropper.min.js');
 $htmlHeadXtra[] = api_get_css(
     api_get_path(WEB_PLUGIN_PATH).'customcertificate/resources/css/form.css'
 );
+$htmlHeadXtra[] = '<script>
+    $(function () {
+        $("#delete_certificate").click(function (e) {
+            e.preventDefault();
+            e.stopPropagation();
+
+            if (confirm("'.$plugin->get_lang("QuestionDelete").'")) {
+                var courseId = '.$courseId.';
+                var sessionId = '.$sessionId.';
+                var accessUrlId = '.$accessUrlId.';
+                var plugin_path = "'.api_get_path(WEB_PLUGIN_PATH).'";
+                var ajax_path = plugin_path + "customcertificate/src/customcertificate.ajax.php?a=delete_certificate";
+                $.ajax({
+                    data: {courseId: courseId, sessionId: sessionId, accessUrlId: accessUrlId},
+                    url: ajax_path,
+                    type: "POST",
+                    success: function (response) {
+                        window.location.reload();
+                    }
+                }); 
+            }
+        });
+
+    });
+</script>';
 
 // Get info certificate
-$infoCertificate = Database::select(
-    '*',
-    $table,
-    ['where' => [
-        'access_url_id = ? AND c_id = ? AND session_id = ?' => [$accessUrlId, $courseId, $sessionId], ],
-    ],
-    'first'
-);
+$infoCertificate = CustomCertificatePlugin::getInfoCertificate($courseId, $sessionId, $accessUrlId);
 
 $form = new FormValidator(
     'formEdit',
@@ -172,12 +191,7 @@ if ($form->validate()) {
 
         // Certificate Default
         if (intval($formValues['use_default'] == 1)) {
-            $infoCertificateDefault = Database::select(
-                '*',
-                $table,
-                ['where' => ['access_url_id = ? AND certificate_default = ? ' => [$accessUrlId, 1]]],
-                'first'
-            );
+            $infoCertificateDefault = CustomCertificatePlugin::getInfoCertificateDefault($accessUrlId);
             if (!empty($infoCertificateDefault)) {
                 foreach ($fieldList as $field) {
                     if (!empty($infoCertificateDefault[$field]) && !$checkLogo[$field]) {
@@ -199,14 +213,9 @@ if ($form->validate()) {
 }
 
 if (empty($infoCertificate)) {
-    $infoCertificate = Database::select(
-        '*',
-        $table,
-        ['where' => ['access_url_id = ? AND certificate_default = ? ' => [$accessUrlId, 1]]],
-        'first'
-    );
+    $infoCertificate = CustomCertificatePlugin::getInfoCertificateDefault($accessUrlId);
 
-    if (!is_array($infoCertificate)) {
+    if (empty($infoCertificate)) {
         $infoCertificate = [
             'type_date_expediction' => '',
             'year' => '',
@@ -215,9 +224,7 @@ if (empty($infoCertificate)) {
             'date_change' => '',
         ];
     }
-    if (!empty($infoCertificate)) {
-        $useDefault = true;
-    }
+    $useDefault = true;
 }
 
 // Display the header
@@ -226,6 +233,13 @@ $actionsLeft = Display::url(
     Display::return_icon('certificate.png', get_lang('Certificate'), '', ICON_SIZE_MEDIUM),
     'print_certificate.php'.$urlParams
 );
+if (!empty($courseId) && !$useDefault) {
+    $actionsLeft .= Display::url(
+        Display::return_icon('delete.png', $plugin->get_lang('DeleteCertificate'), '', ICON_SIZE_MEDIUM),
+        'delete_certificate.php'.$urlParams,
+        ['id' => 'delete_certificate']
+    );
+}
 
 echo Display::toolbarAction(
     'toolbar-document',

plugin/customcertificate/src/print_certificate.php

@@ -46,7 +46,7 @@ if (empty($courseCode)) {
 }
 
 if (empty($sessionId)) {
-    $sessionId = isset($_REQUEST['session_id']) ? (int) $_REQUEST['session_id'] : '';
+    $sessionId = isset($_REQUEST['session_id']) ? (int) $_REQUEST['session_id'] : 0;
 }
 
 $accessUrlId = api_get_current_access_url_id();
@@ -83,28 +83,14 @@ $useDefault = false;
 $path = api_get_path(SYS_UPLOAD_PATH).'certificates/';
 
 // Get info certificate
-$infoCertificate = Database::select(
-    '*',
-    $table,
-    ['where' => ['access_url_id = ? AND c_id = ? AND session_id = ?' => [$accessUrlId, $courseId, $sessionId]]],
-    'first'
-);
+$infoCertificate = CustomCertificatePlugin::getInfoCertificate($courseId, $sessionId, $accessUrlId);
 
 if (!is_array($infoCertificate)) {
     $infoCertificate = [];
 }
 
 if (empty($infoCertificate)) {
-    $infoCertificate = Database::select(
-        '*',
-        Database::get_main_table(CustomCertificatePlugin::TABLE_CUSTOMCERTIFICATE),
-        ['where' => ['access_url_id = ? AND certificate_default = ? ' => [$accessUrlId, 1]]],
-        'first'
-    );
-
-    if (!is_array($infoCertificate)) {
-        $infoCertificate = [];
-    }
+    $infoCertificate = CustomCertificatePlugin::getInfoCertificateDefault($accessUrlId);
 
     if (empty($infoCertificate)) {
         Display::display_header($plugin->get_lang('PrintCertificate'));