save settings correctly to db and parse response from insertion

api/Settings.php

@@ -22,5 +22,24 @@ if (isset($_POST['action'])) {
             }
             echo json_encode($r);
             break;
+        case "saveGeneralSettings":
+            $mediacentername = $_POST['mediacentername'];
+            $password = $_POST['password'];
+            $videopath = $_POST['videopath'];
+            $tvshowpath = $_POST['tvshowpath'];
+
+            $query = "UPDATE settings SET 
+                        video_path='$videopath',
+                        episode_path='$tvshowpath',
+                        password='$password',
+                        mediacenter_name='$mediacentername'
+                    WHERE 1";
+
+            if ($conn->query($query) === true) {
+                echo '{"success": true}';
+            } else {
+                echo '{"success": true}';
+            }
+            break;
     }
 }

src/pages/SettingsPage/GeneralSettings.js

@@ -93,10 +93,19 @@ class GeneralSettings extends React.Component {
         const updateRequest = new FormData();
         updateRequest.append('action', 'saveGeneralSettings');
 
-        fetch('/api/settings.php', {method: 'POST', body: updateRequest})
+        updateRequest.append('password', this.state.passwordsupport ? this.state.password : "-1");
+        updateRequest.append('videopath', this.state.videopath);
+        updateRequest.append('tvshowpath', this.state.tvshowpath);
+        updateRequest.append('mediacentername', this.state.mediacentername);
+
+        fetch('/api/Settings.php', {method: 'POST', body: updateRequest})
             .then((response) => response.json()
                 .then((result) => {
-                    // todo 2020-07-4: settings result here
+                    if (result.success) {
+                        // todo 2020-07-10: popup success
+                    } else {
+                        // todo 2020-07-10: popup error
+                    }
                 }));
     }
 }