Drupal 9 Mega Drupal Slider Patch

diff -ruN md_slider_old/md_slider.info.yml md_slider/md_slider.info.yml
--- md_slider_old/md_slider.info.yml    2018-10-18 20:22:01.000000000 -0700
+++ md_slider/md_slider.info.yml    2021-02-19 10:38:34.250860369 -0800
@@ -6,7 +6,8 @@
   - imce

 version: '8.x-1.4'
-core: 8.x
+#core: 8.x
+core_version_requirement: ^8 || ^9
 project: 'md_slider'
 project status url: 'http://megadrupal.com/fserver'
-datestamp: 1539919269
\ No newline at end of file
+datestamp: 1539919269
diff -ruN md_slider_old/md_slider.install md_slider/md_slider.install
--- md_slider_old/md_slider.install 2018-10-18 20:22:01.000000000 -0700
+++ md_slider/md_slider.install 2021-02-16 12:52:47.815292606 -0800
@@ -95,7 +95,7 @@

 function md_slider_uninstall() {
   // Remove the css directory
-  file_unmanaged_delete_recursive(file_default_scheme() . '://md-slider-css');
+  file_unmanaged_delete_recursive(\Drupal::config('system.file')->get('default_scheme') . '://md-slider-css');
   // Remove image style md_slider_thumb
   ImageStyle::load('md_slider_thumb')->delete();
 }
\ No newline at end of file
diff -ruN md_slider_old/md_slider.libraries.yml md_slider/md_slider.libraries.yml
--- md_slider_old/md_slider.libraries.yml   2018-10-18 20:22:01.000000000 -0700
+++ md_slider/md_slider.libraries.yml   2021-02-16 17:27:48.873456782 -0800
@@ -42,8 +42,8 @@
     - core/drupal.ajax
     - core/jquery.once
     - core/drupal.dialog
-    - core/jquery.ui.tabs
-    - core/jquery.ui.sortable
+    - jquery_ui_tabs/tabs
+    - jquery_ui_sortable/sortable
     - core/jquery.ui.draggable
     - core/jquery.ui.droppable

@@ -56,4 +56,4 @@
   dependencies:
     - core/jquery
     - core/drupal
-    - core/drupalSettings
\ No newline at end of file
+    - core/drupalSettings
diff -ruN md_slider_old/md_slider.module md_slider/md_slider.module
--- md_slider_old/md_slider.module  2018-10-18 20:22:01.000000000 -0700
+++ md_slider/md_slider.module  2021-02-16 12:52:47.844293461 -0800
@@ -157,7 +157,7 @@
   foreach ($slides as $index => $slide) {
     $slide->slideSettings = unserialize($slide->settings);
     $slide->slideSettings += array('slide_id' => $slide->sid);
-    $slide->jsonSlideSettings = JSON::encode($slide->slideSettings);
+    $slide->jsonSlideSettings = Json::encode($slide->slideSettings);
     $slide->contentLayer = array(
       '#theme' => 'admin_layers_render',
       '#layers' => unserialize($slide->layers)
@@ -436,7 +436,7 @@

 function template_preprocess_front_layers_render(&$vars) {
   $layer = $vars['layer'];
-  if (!isset($layer{"title"})) {
+  if (!isset($layer["title"])) {
     $layer["title"] = "";
   }

@@ -549,4 +549,4 @@
       $libraries['md_slider.slider.' . $slider->machine_name]['css']['component'][$file_url] = array();
     }
   }
-}
\ No newline at end of file
+}
diff -ruN md_slider_old/src/Controller/MDSliderController.php md_slider/src/Controller/MDSliderController.php
--- md_slider_old/src/Controller/MDSliderController.php 2018-10-18 20:22:01.000000000 -0700
+++ md_slider/src/Controller/MDSliderController.php 2021-02-16 12:52:47.877294433 -0800
@@ -20,9 +20,6 @@

 class MDSliderController extends ControllerBase {

-  /**
-   *
-   */
   public function listMDSlider() {
     $all_slider = MDSliderDataBase::loadAll('md_sliders');
     $header = array(
@@ -61,7 +58,7 @@
       '#theme' => 'table',
       '#header' => $header,
       '#rows' => $rows,
-      '#empty' => t('No MegaSlider available. <a href="@link">Add MegaSlider</a>.', array('@link' => \Drupal::url('md_slider.admin.add'))),
+      '#empty' => t('No MegaSlider available. <a href="@link">Add MegaSlider</a>.', array('@link' => Url::fromRoute('md_slider.admin.add')->toString())),
       '#attributes' => array('id' => 'md-slider'),
     );
   }
@@ -90,9 +87,9 @@
     $build['slide_settings'] = array(
       '#theme' => 'slide_settings',
     );
-    $json_url = \Drupal::url('md_slider.admin.json_response', array(), array('absolute' => TRUE));
-    $html_url = \Drupal::url('md_slider.admin.html_response', array(), array('absolute' => TRUE));
-    $image_url = \Drupal::url('md_slider.admin.image', array(), array('absolute' => TRUE));
+    $json_url = Url::fromRoute('md_slider.admin.json_response', array(), array('absolute' => TRUE))->toString();
+    $html_url = Url::fromRoute('md_slider.admin.html_response', array(), array('absolute' => TRUE))->toString();
+    $image_url = Url::fromRoute('md_slider.admin.image', array(), array('absolute' => TRUE))->toString();
     $build['#attached']['drupalSettings']['MDSlider']['jsonConfigURL'] = $json_url;
     $build['#attached']['drupalSettings']['MDSlider']['htmlConfigURL'] = $html_url;
     $build['#attached']['drupalSettings']['MDSlider']['imageConfigURL'] = $image_url;
diff -ruN md_slider_old/src/Form/MDSliderCloneForm.php md_slider/src/Form/MDSliderCloneForm.php
--- md_slider_old/src/Form/MDSliderCloneForm.php    2018-10-18 20:22:01.000000000 -0700
+++ md_slider/src/Form/MDSliderCloneForm.php    2021-02-16 12:52:47.889294787 -0800
@@ -136,11 +136,11 @@
           }
         }
         MDSliderRenderCss::saveFileCss($machine_name, $style);
-        drupal_set_message($this->t('Clone successfully Slider %title', array('%title' => $title)));
+        $this->messenger()->addStatus($this->t('Clone successfully Slider %title', array('%title' => $title)));
         $form_state->setRedirect('md_slider.admin.edit', array('slider' => $machine_name));
       }
       else {
-        drupal_set_message($this->t('Clone Failed Slider %title', array('%title' => $title)));
+        $this->messenger()->addStatus($this->t('Clone Failed Slider %title', array('%title' => $title)));
       }
     }
   }
diff -ruN md_slider_old/src/Form/MDSliderConfigForm.php md_slider/src/Form/MDSliderConfigForm.php
--- md_slider_old/src/Form/MDSliderConfigForm.php   2018-10-18 20:22:01.000000000 -0700
+++ md_slider/src/Form/MDSliderConfigForm.php   2021-02-16 12:52:47.902295170 -0800
@@ -7,6 +7,7 @@

 namespace Drupal\md_slider\Form;

+use Drupal\Core\File\FileSystemInterface;
 use Drupal\Core\Form\FormBase;
 use Drupal\md_slider\MDSlider;
 use Drupal\Core\Form\FormStateInterface;
@@ -361,9 +362,9 @@
       if ($response) {
         $css_content = '';
         $destination_dir = 'public://md-slider-css';
-        file_prepare_directory($destination_dir, FILE_CREATE_DIRECTORY);
-        file_unmanaged_save_data($css_content, $destination_dir . "/md-slider-{$slider->machine_name}-layers.css", FILE_EXISTS_REPLACE);
-        drupal_set_message($this->t('Slider %slider has been created.', array('%slider' => $slider->title)));
+        \Drupal::service('file_system')->prepareDirectory($destination_dir, FileSystemInterface::CREATE_DIRECTORY);
+        \Drupal::service('file_system')->saveData($css_content, $destination_dir . "/md-slider-{$slider->machine_name}-layers.css", FileSystemInterface::EXISTS_REPLACE);
+        $this->messenger()->addStatus($this->t('Slider %slider has been created.', array('%slider' => $slider->title)));
         \Drupal::service('library.discovery')->clearCachedDefinitions();
         $cache = \Drupal::cache('discovery');
         $cache->delete('block_plugins');
@@ -379,7 +380,7 @@
       if ($response) {
         //fix error cache
         \Drupal::service('router.builder')->rebuild();
-        drupal_set_message($this->t('Slider %slider has been updated.', array('%slider' => $slider->title)));
+        $this->messenger()->addStatus($this->t('Slider %slider has been updated.', array('%slider' => $slider->title)));
       }
     }
   }
diff -ruN md_slider_old/src/Form/MDSliderDeleteForm.php md_slider/src/Form/MDSliderDeleteForm.php
--- md_slider_old/src/Form/MDSliderDeleteForm.php   2018-10-18 20:22:01.000000000 -0700
+++ md_slider/src/Form/MDSliderDeleteForm.php   2021-02-16 12:52:47.960296880 -0800
@@ -97,7 +97,7 @@
       $this->md_slider->getDataSlider($this->md_slider->machine_name);
       $response = $this->md_slider->deleteDataSlider($this->md_slider->slid);
       if ($response)
-        drupal_set_message($this->t('Slider %slider has been deleted.', array('%slider' => $this->md_slider->title)));
+        $this->messenger()->addStatus($this->t('Slider %slider has been deleted.', array('%slider' => $this->md_slider->title)));
       $form_state->setRedirect('md_slider.admin');
     }
   }
diff -ruN md_slider_old/src/Form/MDSliderEditForm.php md_slider/src/Form/MDSliderEditForm.php
--- md_slider_old/src/Form/MDSliderEditForm.php 2018-10-18 20:22:01.000000000 -0700
+++ md_slider/src/Form/MDSliderEditForm.php 2021-02-16 12:52:47.965297028 -0800
@@ -111,6 +111,6 @@
     $file = MDSliderRenderCss::saveFileCss($slider->machine_name, $style);
     //fix error cache
     \Drupal::service('router.builder')->rebuild();
-    drupal_set_message($this->t('Slider %slider has been updated.', array('%slider' => $slider->title)));
+    $this->messenger()->addStatus($this->t('Slider %slider has been updated.', array('%slider' => $slider->title)));
   }
 }
\ No newline at end of file
diff -ruN md_slider_old/src/Form/MDSliderImageForm.php md_slider/src/Form/MDSliderImageForm.php
--- md_slider_old/src/Form/MDSliderImageForm.php    2018-10-18 20:22:01.000000000 -0700
+++ md_slider/src/Form/MDSliderImageForm.php    2021-02-19 11:16:38.614901962 -0800
@@ -43,7 +43,7 @@
    */
   public static function create(ContainerInterface $container) {
     return new static(
-      $container->get('entity.manager')->getStorage('file')
+      $container->get('entity_type.manager')->getStorage('file')
     );
   }

diff -ruN md_slider_old/src/Form/MDSliderImportForm.php md_slider/src/Form/MDSliderImportForm.php
--- md_slider_old/src/Form/MDSliderImportForm.php   2018-10-18 20:22:01.000000000 -0700
+++ md_slider/src/Form/MDSliderImportForm.php   2021-02-19 11:16:49.098159160 -0800
@@ -7,6 +7,7 @@

 namespace Drupal\md_slider\Form;

+use Drupal\Core\File\FileSystemInterface;
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormStateInterface;
@@ -40,7 +41,7 @@
    */
   public static function create(ContainerInterface $container) {
     return new static(
-      $container->get('entity.manager')->getStorage('file')
+      $container->get('entity_type.manager')->getStorage('file')
     );
   }

@@ -80,9 +81,9 @@
    */
   public function validateForm(array &$form, FormStateInterface $form_state) {
     $destination_dir = 'public://md-slider-image';
-    $writable = file_prepare_directory($destination_dir, FILE_CREATE_DIRECTORY);
+    $writable = \Drupal::service('file_system')->prepareDirectory($destination_dir, FileSystemInterface::CREATE_DIRECTORY);
     if (!$writable) {
-      drupal_set_message($this->t());
+      $this->messenger()->addStatus($this->t());
       $form_state->setError($form, t('The directory %dir does not exist and could not be created.', array('%dir' =>  $destination_dir)));
     }
   }
@@ -94,11 +95,11 @@

     $fid = $form_state->getValue('file');
     $file = File::load($fid[0]);
-    $file_path = drupal_realpath($file->getFileUri());
+    $file_path = \Drupal::service('file_system')->realpath($file->getFileUri());
     $destination_dir = 'public://md-slider-image';
     $import = new MDSliderImport();
     $import->getDataImport($file_path, $destination_dir);
     $import->importDataSlider();
-    drupal_set_message($this->t("MD Slider: Import successful!"));
+    $this->messenger()->addStatus($this->t("MD Slider: Import successful!"));
   }
-}
\ No newline at end of file
+}
diff -ruN md_slider_old/src/MDSliderDataBase.php md_slider/src/MDSliderDataBase.php
--- md_slider_old/src/MDSliderDataBase.php  2018-10-18 20:22:01.000000000 -0700
+++ md_slider/src/MDSliderDataBase.php  2021-02-16 12:52:48.015298502 -0800
@@ -17,22 +17,26 @@
   public static function insert($table, $field) {
     $return_value = NULL;
     try {
-      $return_value = db_insert($table)
+      // TODO: Drupal Rector Notice: Please delete the following comment after you've made any necessary changes.
+      // You will need to use `\Drupal\core\Database\Database::getConnection()` if you do not yet have access to the container here.
+      $return_value = \Drupal::database()->insert($table)
         ->fields($field)
         ->execute();
     }
     catch (\Exception $e) {
-      drupal_set_message(t('db_insert failed. Message = %message, query= %query', array(
+      \Drupal::messenger()->addError(t('db_insert failed. Message = %message, query= %query', array(
         '%message' => $e->getMessage(),
         '%query' => $e->query_string,
-      )), 'error');
+      )));
     }
     return $return_value;
   }

   public static function update($table, $fields, $conditions) {
     try {
-      $count = db_update($table)
+      // TODO: Drupal Rector Notice: Please delete the following comment after you've made any necessary changes.
+      // You will need to use `\Drupal\core\Database\Database::getConnection()` if you do not yet have access to the container here.
+      $count = \Drupal::database()->update($table)
         ->fields($fields);
       foreach ($conditions as $field => $value) {
         $count->condition($field, $value);
@@ -40,10 +44,10 @@
       $count->execute();
     }
     catch (\Exception $e) {
-      drupal_set_message(t('db_update failed. Message = %message, query= %query', array(
+      \Drupal::messenger()->addError(t('db_update failed. Message = %message, query= %query', array(
         '%message' => $e->getMessage(),
         '%query' => $e->query_string,
-      )), 'error');
+      )));
     }
     return $count;
   }
@@ -52,7 +56,9 @@
    * @param array $entry
    */
   public static function load($table, $entry = array()) {
-    $select = db_select($table, 'table_alias');
+    // TODO: Drupal Rector Notice: Please delete the following comment after you've made any necessary changes.
+    // You will need to use `\Drupal\core\Database\Database::getConnection()` if you do not yet have access to the container here.
+    $select = \Drupal::database()->select($table, 'table_alias');
     $select->fields('table_alias');
     foreach ($entry as $field => $value) {
       $select->condition($field, $value);
@@ -67,7 +73,9 @@
    * @return
    */
   public static function loadAll($table, $entry = array(), $sort = array()) {
-    $select = db_select($table, 'table_alias');
+    // TODO: Drupal Rector Notice: Please delete the following comment after you've made any necessary changes.
+    // You will need to use `\Drupal\core\Database\Database::getConnection()` if you do not yet have access to the container here.
+    $select = \Drupal::database()->select($table, 'table_alias');
     $select->fields('table_alias');
     if (count($entry) > 0) {
       foreach ($entry as $field => $value) {
@@ -84,7 +92,9 @@
   }

   public static function delete($table, $entry = array()) {
-    $delete = db_delete($table);
+    // TODO: Drupal Rector Notice: Please delete the following comment after you've made any necessary changes.
+    // You will need to use `\Drupal\core\Database\Database::getConnection()` if you do not yet have access to the container here.
+    $delete = \Drupal::database()->delete($table);
     if (count($entry) > 0) {
       foreach ($entry as $field => $value) {
         $delete->condition($field, $value);
diff -ruN md_slider_old/src/Plugin/Field/FieldWidget/MDSliderWidget.php md_slider/src/Plugin/Field/FieldWidget/MDSliderWidget.php
--- md_slider_old/src/Plugin/Field/FieldWidget/MDSliderWidget.php   2018-10-18 20:22:01.000000000 -0700
+++ md_slider/src/Plugin/Field/FieldWidget/MDSliderWidget.php   2021-02-16 12:52:48.037299150 -0800
@@ -7,6 +7,7 @@

 namespace Drupal\md_slider\Plugin\Field\FieldWidget;

+use Drupal\Core\Url;
 use Drupal\Core\Field\FieldItemListInterface;
 use Drupal\Core\Field\WidgetBase;
 use Drupal\Core\Form\FormStateInterface;
@@ -35,7 +36,7 @@
     if (count($all_slider) == 0) {
       $element += [
         '#type' => 'markup',
-        '#markup' => '<h5>'. t('No MegaSlider available. <a href="@link">Add MegaSlider</a>.', array('@link' => \Drupal::url('md_slider.admin.add'))) . '</h5>'
+        '#markup' => '<h5>'. t('No MegaSlider available. <a href="@link">Add MegaSlider</a>.', array('@link' => Url::fromRoute('md_slider.admin.add')->toString())) . '</h5>'
       ];
     }
     else {
diff -ruN md_slider_old/src/Slider/MDSliderImport.php md_slider/src/Slider/MDSliderImport.php
--- md_slider_old/src/Slider/MDSliderImport.php 2018-10-18 20:22:01.000000000 -0700
+++ md_slider/src/Slider/MDSliderImport.php 2021-02-16 12:52:48.047299445 -0800
@@ -7,6 +7,7 @@

 namespace Drupal\md_slider\Slider;

+use Drupal\Core\File\FileSystemInterface;
 use Drupal\md_slider\MDSlide;
 use Drupal\md_slider\MDSlider;

@@ -44,7 +45,7 @@
         // Get image content
         zip_entry_open($zip, $entry);
         $entry_content = zip_entry_read($entry, zip_entry_filesize($entry));
-        $image = file_save_data($entry_content, "{$destination_dir}/{$image_name}", FILE_EXISTS_RENAME);
+        $image = file_save_data($entry_content, "{$destination_dir}/{$image_name}", FileSystemInterface::EXISTS_RENAME);
         if ($image !== FALSE)
           $images[$image_name] = $image;
         zip_entry_close($entry);
@@ -91,7 +92,7 @@
       $slid = $md_slider->saveDataSlider();
       $style = array();
       if (!$slid) {
-        drupal_set_message(t("MD Slider: Import unsuccessful!"), "error");
+        \Drupal::messenger()->addError(t("MD Slider: Import unsuccessful!"));
         return;
       }

diff -ruN md_slider_old/src/Slider/MDSliderRenderCss.php md_slider/src/Slider/MDSliderRenderCss.php
--- md_slider_old/src/Slider/MDSliderRenderCss.php  2018-10-18 20:22:01.000000000 -0700
+++ md_slider/src/Slider/MDSliderRenderCss.php  2021-02-16 12:52:48.059299799 -0800
@@ -6,6 +6,7 @@

 namespace Drupal\md_slider\Slider;

+use Drupal\Core\File\FileSystemInterface;
 class MDSliderRenderCss{

   /**
@@ -262,8 +263,8 @@
   public static function saveFileCss($slider_name, $style) {
     $css = implode("\r\n", $style);
     $destination_dir = 'public://md-slider-css';
-    file_prepare_directory($destination_dir, FILE_CREATE_DIRECTORY);
-    file_unmanaged_save_data($css, $destination_dir . "/md-slider-{$slider_name}-layers.css", FILE_EXISTS_REPLACE);
+    \Drupal::service('file_system')->prepareDirectory($destination_dir, FileSystemInterface::CREATE_DIRECTORY);
+    \Drupal::service('file_system')->saveData($css, $destination_dir . "/md-slider-{$slider_name}-layers.css", FileSystemInterface::EXISTS_REPLACE);
   }
 }