Added translation change button in frontend.

src/application/controllers/backend_api.php

@@ -1072,6 +1072,30 @@ class Backend_api extends CI_Controller {
             )); 
     	}
     }
+    
+    /**
+     * This method will return a list of the available google calendars. 
+     * 
+     * The user will need to select a specific calendar from this list to sync his 
+     * appointments with. Google access must be already granted for the specific 
+     * provider.
+     * 
+     * @param string $_POST['provider_id'] Provider record id.
+     */
+    public function ajax_get_google_calendars() {
+    	try {
+    		$this->load->library('google_sync');
+    		$this->load->model('providers_model');
+    		
+    		$calendars = $this->google_sync->get_google_calendars($_POST['provider_id']);
+    		echo json_encode($calendars);
+    		
+    	} catch(Exception $exc) {
+    		echo json_encode(array(
+    				'exceptions' => array(exceptionToJavaScript($exc))
+    		));
+    	}
+    }
 }
 
 /* End of file backend_api.php */

src/application/controllers/google.php

@@ -58,6 +58,8 @@ class Google extends CI_Controller {
        					$_SESSION['oauth_provider_id']);
        			$this->providers_model->set_setting('google_token', $token, 
        					$_SESSION['oauth_provider_id']);
+       			$this->providers_model->set_setting('google_calendar', 'primary', 
+       					$_SESSION['oath_provider_id']);
                 
        		} else {
        			echo '<h1>Sync provider id not specified!</h1>';

src/application/language/english/translations_lang.php

@@ -262,3 +262,5 @@ $lang['select_time'] = 'Select Time';
 $lang['time'] = 'Time';
 $lang['hour'] = 'Hour';
 $lang['minute'] = 'Minute';
+$lang['google_sync_completed'] = 'Google synchronization completed successfully!';
+$lang['google_sync_failed'] = 'Google synchronization failed: Could not establish server connection.';

src/application/language/german/translations_lang.php

@@ -262,3 +262,5 @@ $lang['select_time'] = 'Zeit Wählen';
 $lang['time'] = 'Zeit';
 $lang['hour'] = 'Uhr';
 $lang['minute'] = 'Minute';
+$lang['google_sync_completed'] = 'Google Synchronisation erfolgreich beendet!';
+$lang['google_sync_failed'] = 'Google Synchronisation fehlgeschlagen: Serververbindung konnte nicht hergestellt werden.';

src/application/language/greek/translations_lang.php

@@ -262,3 +262,5 @@ $lang['select_time'] = 'Επιλέξτε Ώρα';
 $lang['time'] = 'Χρόνος';
 $lang['hour'] = 'Ώρα';
 $lang['minute'] = 'Λεπτά';
+$lang['google_sync_completed'] = 'Ο συγχρονισμός με την Google ολοκληρώθηκε επιτυχώς!';
+$lang['google_sync_failed'] = 'Ο συγχρονισμός με την Google απέτυχε: Δεν μπόρεσε να πραγματοποιηθεί σύνδεση με τον server.';

src/application/libraries/google_sync.php

@@ -9,7 +9,8 @@ require_once dirname(dirname(dirname(__FILE__))) . '/configuration.php';
  * Google Synchronization Class
  * 
  * This class implements all the core synchronization between the Google Calendar
- * and the Easy!Appointments system. 
+ * and the Easy!Appointments system. Do not place any model handling inside this 
+ * library.
  */
 class Google_Sync {
 	private $CI;
@@ -293,6 +294,19 @@ class Google_Sync {
         
         return $this->service->events->listEvents('primary', $params);
     }
+    
+    /**
+     * Return available google calendars for specific user.
+     * 
+     * The given user's token must already exist in db in order to get access to his 
+     * Google Calendar account.
+     * 
+     * @param numeric $provider_id The provider's record id.
+     * @return array Returns an array with the available calendars.
+     */
+    public function get_google_calendars($provider_id) {
+    	
+    }
 }
 
 /* End of file google_sync.php */

src/application/views/appointments/book.php

@@ -81,10 +81,12 @@
         };
 
         var EALang = <?php echo json_encode($this->lang->language); ?>;
+        var availableLanguages = <?php echo json_encode($this->config->item('available_languages')); ?>;
         
         $(document).ready(function() {
             FrontendBook.initialize(true, GlobalVariables.manageMode); 
             GeneralFunctions.centerElementOnPage($('#book-appointment-wizard'));
+            GeneralFunctions.enableLanguageSelection($('#select-language'));
         });
     </script>
 </head>
@@ -368,6 +370,10 @@
                 <a href="http://easyappointments.org" target="_blank">
                     Easy!Appointments
                 </a>
+                |
+                <span id="select-language" class="badge badge-inverse">
+		        	<?php echo ucfirst($this->config->item('language')); ?>
+		        </span>
             </div>
         </div>
     </div>

src/application/views/user/login.php

@@ -24,6 +24,10 @@
         rel="stylesheet" 
         type="text/css" 
         href="<?php echo $this->config->base_url(); ?>assets/css/libs/bootstrap/bootstrap-responsive.css">
+	<link 
+        rel="stylesheet" 
+        type="text/css" 
+        href="<?php echo $this->config->base_url(); ?>assets/css/general.css">
     
     <?php // SET FAVICON FOR PAGE ?>
     <link 
@@ -54,7 +58,7 @@
         }
         
         .forgot-password {
-            margin-left: 20px;
+/*             margin-left: 20px; */
         }
     </style>
     
@@ -67,8 +71,11 @@
         };
         
         var EALang = <?php echo json_encode($this->lang->language); ?>;
+        var availableLanguages = <?php echo json_encode($this->config->item('available_languages')); ?>;
         
         $(document).ready(function() {
+        	GeneralFunctions.enableLanguageSelection($('#select-language'));
+        	
             /**
              * Event: Login Button "Click"
              * 
@@ -112,16 +119,30 @@
         <div class="alert hidden"></div>  
         <form id="login-form">
             <label for="username"><?php echo $this->lang->line('username'); ?></label>
-            <input type="text" id="username" placeholder="<?php echo $this->lang->line('enter_username_here'); ?>"  class="span3" />
+            <input type="text" id="username" 
+            		placeholder="<?php echo $this->lang->line('enter_username_here'); ?>"  
+            		class="span3" />
             
             <label for="password"><?php echo $this->lang->line('password'); ?></label>
-            <input type="password" id="password" placeholder="<?php echo $this->lang->line('enter_password_here'); ?>" class="span3" />    
+            <input type="password" id="password" 
+            		placeholder="<?php echo $this->lang->line('enter_password_here'); ?>" 
+            		class="span3" />    
+            
+            <br>
+            
+            <button type="submit" id="login" class="btn btn-primary">
+            	<?php echo $this->lang->line('login'); ?>
+            </button> 
             
             <br><br>
             
-            <button type="submit" id="login" class="btn btn-primary btn-large"><?php echo $this->lang->line('login'); ?></button> 
-            
-            <a href="<?php echo $base_url; ?>user/forgot_password" class="forgot-password"><?php echo $this->lang->line('forgot_your_password'); ?></a>
+            <a href="<?php echo $base_url; ?>user/forgot_password" class="forgot-password">
+            	<?php echo $this->lang->line('forgot_your_password'); ?>
+            </a>
+            |
+            <span id="select-language" class="badge badge-inverse">
+	        	<?php echo ucfirst($this->config->item('language')); ?>
+	        </span>
         </form>
     </div>
 

src/assets/js/backend_calendar.js

@@ -287,23 +287,24 @@ var BackendCalendar = {
                     
                     if (response.exceptions) {
                         response.exceptions = GeneralFunctions.parseExceptions(response.exceptions);
-                        GeneralFunctions.displayMessageBox(GeneralFunctions.EXCEPTIONS_TITLE, GeneralFunctions.EXCEPTIONS_MESSAGE);
+                        GeneralFunctions.displayMessageBox(GeneralFunctions.EXCEPTIONS_TITLE, 
+                        		GeneralFunctions.EXCEPTIONS_MESSAGE);
                         $('#message_box').append(GeneralFunctions.exceptionsToHtml(response.exceptions));
                         return;
                     }
 
                     if (response.warnings) {
                         response.warnings = GeneralFunctions.parseExceptions(response.warnings);
-                        GeneralFunctions.displayMessageBox(GeneralFunctions.WARNINGS_TITLE, GeneralFunctions.WARNINGS_MESSAGE);
+                        GeneralFunctions.displayMessageBox(GeneralFunctions.WARNINGS_TITLE, 
+                        		GeneralFunctions.WARNINGS_MESSAGE);
                         $('#message_box').append(GeneralFunctions.exceptionsToHtml(response.warnings));
                     }
                     
-                    Backend.displayNotification('Google synchronization completed successfully!');
+                    Backend.displayNotification(EALang['google_sync_completed']);
                     $('#reload-appointments').trigger('click');
                 },
                 'error': function(jqXHR, textStatus, errorThrown) {
-                    Backend.displayNotification('Google synchronization failed: Could not establish '
-                            + 'server connection.');
+                    Backend.displayNotification(EALang['google_sync_failed']);
                 }
             });
         });
@@ -706,6 +707,9 @@ var BackendCalendar = {
                             $('#enable-sync span').text(EALang['disable_sync']);
                             $('#google-sync').prop('disabled', false);
                             $('#select-filter-item option:selected').attr('google-sync', 'true');
+                            
+                            // Display the calendar selection dialog.
+                            
                         }
                     }
                 }, 100);

src/assets/js/frontend_book.js

@@ -324,7 +324,7 @@ var FrontendBook = {
         var ajaxurl = GlobalVariables.baseUrl + 'appointments/ajax_get_available_hours';
         jQuery.post(ajaxurl, postData, function(response) {
             ///////////////////////////////////////////////////////////////
-            //console.log('Get Available Hours JSON Response:', response);
+            console.log('Get Available Hours JSON Response:', response);
             ///////////////////////////////////////////////////////////////
             
             if (!GeneralFunctions.handleAjaxExceptions(response)) return;

src/assets/sql/structure.sql

@@ -173,6 +173,7 @@ CREATE TABLE IF NOT EXISTS `ea_user_settings` (
   `notifications` tinyint(4) DEFAULT '0',
   `google_sync` tinyint(4) DEFAULT '0',
   `google_token` text,
+  `google_calendar` varchar(128) DEFAULT NULL,
   `sync_past_days` int(11) DEFAULT '5',
   `sync_future_days` int(11) DEFAULT '5',
   PRIMARY KEY (`id_users`)