Implemented api_get_local_time in many chamilo tools - First pass (see CT#599)

main/admin/settings.php

@@ -261,6 +261,7 @@ if (!empty($_GET['category']) && !in_array($_GET['category'], array('Plugins', '
 			 */
 			case "select":
 				$form->addElement('select', $row['variable'], get_lang($row['comment']), call_user_func('select_'.$row['variable']), $hideme);
+				$default_values[$row['variable']] = $row['selected_value'];
 				break;
 		}
 	}

main/admin/user_edit.php

@@ -82,6 +82,8 @@ $user_data = Database::fetch_array($res, 'ASSOC');
 $user_data['platform_admin'] = is_null($user_data['is_admin']) ? 0 : 1;
 $user_data['send_mail'] = 0;
 $user_data['old_password'] = $user_data['password'];
+//Convert the registration date of the user
+$user_data['registration_date'] = api_get_local_time($user_data['registration_date'], null, null, date_default_timezone_get());
 unset($user_data['password']);
 
 $user_data = array_merge($user_data, Usermanager :: get_extra_user_data($user_id, true));

main/calendar/agenda.inc.php

@@ -443,8 +443,8 @@ function display_monthcalendar($month, $year)
 						foreach ($agenda_item as $key=>$value) {
 							$month_start_date = (int)substr($value['start_date'],5,2);
 							if ($month == $month_start_date) {
-								$start_time= date("H:i",strtotime($value['start_date']));
+								$start_time = api_get_local_time($value['start_date'], "H:i", null, date_default_timezone_get());
-								$end_time= date("H:i",strtotime($value['end_date']));
+								$end_time = api_get_local_time($value['end_date'], "H:i", null, date_default_timezone_get());
 
 								if ($value['end_date']=='0000-00-00 00:00:00'){
 									$dayheader .= '<br />'.get_lang("Work").'<br />';
@@ -2139,14 +2139,14 @@ function display_agenda_items()
          --------------------------------------------------*/
     	echo "<tr class='row_odd'>";
     	echo "\t\t<td>".get_lang("StartTimeWindow").": ";
-    	echo api_ucfirst(format_locale_date($dateFormatLong,strtotime($myrow["start_date"])))."&nbsp;&nbsp;&nbsp;";
+    	echo api_ucfirst(api_get_local_time($myrow['start_date'], $dateFormatLong, null, date_default_timezone_get()))."&nbsp;&nbsp;&nbsp;";
-    	echo api_ucfirst(strftime($timeNoSecFormat,strtotime($myrow["start_date"])))."";
+    	echo api_ucfirst(api_get_local_time($myrow['start_date'], $timeNoSecFormat, null, date_default_timezone_get()))."";
     	echo "</td>\n";
     	echo "\t\t<td>";
     	if ($myrow["end_date"]<>"0000-00-00 00:00:00") {
     		echo get_lang("EndTimeWindow").": ";
-    		echo api_ucfirst(format_locale_date($dateFormatLong,strtotime($myrow["end_date"])))."&nbsp;&nbsp;&nbsp;";
+    		echo api_ucfirst(api_get_local_time($myrow['end_date'], $dateFormatLong, null, date_default_timezone_get()))."&nbsp;&nbsp;&nbsp;";
-    		echo api_ucfirst(strftime($timeNoSecFormat,strtotime($myrow["end_date"])))."";
+			echo api_ucfirst(api_get_local_time($myrow['end_date'], $timeNoSecFormat, null, date_default_timezone_get()))."";
     	}
     	echo "</td>\n";
 
@@ -2432,12 +2432,12 @@ function display_one_agenda_item($agenda_id)
 	  --------------------------------------------------*/
 	echo "\t<tr class='row_odd'>\n";
 	echo "\t\t<td>".get_lang("StartTime").": ";
-	echo api_ucfirst(format_locale_date($dateFormatLong,strtotime($myrow["start_date"])))."&nbsp;&nbsp;&nbsp;";
+	echo api_ucfirst(api_get_local_time($myrow['start_date'], $dateFormatLong, null, date_default_timezone_get()))."&nbsp;&nbsp;&nbsp;";
-	echo api_ucfirst(strftime($timeNoSecFormat,strtotime($myrow["start_date"])))."";
+    echo api_ucfirst(api_get_local_time($myrow['start_date'], $timeNoSecFormat, null, date_default_timezone_get()))."";
 	echo "</td>\n";
 	echo "\t\t<td>".get_lang("EndTime").": ";
-	echo api_ucfirst(format_locale_date($dateFormatLong,strtotime($myrow["end_date"])))."&nbsp;&nbsp;&nbsp;";
+	echo api_ucfirst(api_get_local_time($myrow['end_date'], $dateFormatLong, null, date_default_timezone_get()))."&nbsp;&nbsp;&nbsp;";
-	echo api_ucfirst(strftime($timeNoSecFormat,strtotime($myrow["end_date"])))."";
+    echo api_ucfirst(api_get_local_time($myrow['end_date'], $timeNoSecFormat, null, date_default_timezone_get()))."";
 	echo "</td>\n";
 
 	/*--------------------------------------------------
@@ -3118,7 +3118,7 @@ function get_agendaitems($month, $year)
 	while ($item = Database::fetch_array($result))
 	{
 		$agendaday = date('j',strtotime($item['start_date']));
-		$time= date('H:i',strtotime($item['start_date']));
+		$time = api_get_local_time($item['start_date'], 'H:i', null, date_default_timezone_get());
 		$URL = $root_url.'main/calendar/agenda.php?cidReq='.$mycourse['id']."&amp;day=$agendaday&amp;month=$month&amp;year=$year#$agendaday"; // RH  //Patrick Cool: to highlight the relevant agenda item
 		$items[$agendaday][$item['start_time']] .= '<i>'.$time.'</i> <a href="'.$URL.'" title="'.$mycourse['name'].'">'.$mycourse['official_code'].'</a> '.$item['title'].'<br />';
 	}
@@ -3603,7 +3603,7 @@ function get_week_agendaitems($courses_dbs, $month, $year, $week = '')
 		while ($item = Database::fetch_array($result))
 		{
 			$agendaday = date("j",strtotime($item['start_date']));
-			$time= date("H:i",strtotime($item['start_date']));
+			$time = api_get_local_time($item['start_date'], "H:i", null, date_default_timezone_get());
 
 			if ($setting_agenda_link == 'coursecode')
 			{

main/document/document.php

@@ -803,6 +803,7 @@ if(isset($docs_and_folders) && is_array($docs_and_folders))
 
 		//last edit date
 		$last_edit_date=$id['lastedit_date'];
+		$last_edit_date=api_get_local_time($last_edit_date, null, null, date_default_timezone_get());
 		$display_date = date_to_str_ago($last_edit_date).'<br><span class="dropbox_date">'.$last_edit_date.'</span>';
 		$row[] = $invisibility_span_open.$display_date.$invisibility_span_close.'<!--uts='.strtotime($last_edit_date).'-->';
 

main/dropbox/index.php

@@ -462,7 +462,7 @@ if ($_GET['view']=='received' OR $dropbox_cnf['sent_received_tabs']==false) {
 			$dropbox_file_data[]=$dropbox_file->author;
 			//$dropbox_file_data[]=$dropbox_file->description;
 
-			$dropbox_file_data[]=date_to_str_ago($dropbox_file->last_upload_date).'<br><span class="dropbox_date">'.$dropbox_file->last_upload_date.'</span>';
+			$dropbox_file_data[]=date_to_str_ago(api_get_local_time($dropbox_file->last_upload_date, null, null, date_default_timezone_get())).'<br><span class="dropbox_date">'.api_get_local_time($dropbox_file->last_upload_date, null, null, date_default_timezone_get()).'</span>';
 
 			$action_icons=check_number_feedback($dropbox_file->id, $number_feedback).' '.get_lang('Feedback').'
 									<a href="'.api_get_self().'?'.api_get_cidreq().'&view_received_category='.Security::remove_XSS($_GET['view_received_category']).'&amp;view_sent_category='.Security::remove_XSS($_GET['view_sent_category']).'&amp;view='.Security::remove_XSS($_GET['view']).'&amp;action=viewfeedback&amp;id='.$dropbox_file->id.'">'.Display::return_icon('comment_bubble.gif',get_lang('Comment')).'</a>
@@ -617,7 +617,7 @@ if (!$_GET['view'] OR $_GET['view']=='sent' OR $dropbox_cnf['sent_received_tabs'
 			}
 			$receivers_celldata = trim(trim($receivers_celldata), ','); // Removing the trailing comma.
 			$dropbox_file_data[]=$receivers_celldata;
-			$dropbox_file_data[]=date_to_str_ago($dropbox_file->last_upload_date).'<br><span class="dropbox_date">'.$dropbox_file->last_upload_date.'</span>';
+			$dropbox_file_data[]=date_to_str_ago(api_get_local_time($dropbox_file->last_upload_date, null, null, date_default_timezone_get())).'<br><span class="dropbox_date">'.api_get_local_time($dropbox_file->last_upload_date, null, null, date_default_timezone_get()).'</span>';
 
 			//$dropbox_file_data[]=$dropbox_file->author;
 			$receivers_celldata='';

main/exercice/exercice.php

@@ -1268,7 +1268,8 @@ if ($_configuration['tracking_enabled'] && ($show == 'result')) {
 				}
 				//echo '</td>';
 				//echo '<td>' . $add_start_date . format_locale_date('%b %d, %Y %H:%M', $results[$i][4]) . '</td>'; //get_lang('dateTimeFormatLong')
-				$date_list = $add_start_date . format_locale_date('%b %d, %Y %H:%M', $results[$i][4]);
+				// Date conversion
+				$date_list = api_get_local_time((int)$results[$i][7], null, null, date_default_timezone_get()). ' / ' . api_get_local_time((int)$results[$i][4], null, null, date_default_timezone_get());
 				// there are already a duration test period calculated??
 				//echo '<td>'.sprintf(get_lang('DurationFormat'), $duration).'</td>';
 

main/forum/index.php

@@ -422,7 +422,7 @@ if (isset($_GET['action']) && $_GET['action'] == 'notify' AND isset($_GET['conte
 						echo "\t\t<td nowrap=\"nowrap\">";
 
 						if (!empty($forum['last_post_id'])) {
-							echo $forum['last_post_date']."<br /> ".get_lang('By').' '.display_user_link($poster_id, $name);
+							echo api_get_local_time($forum['last_post_date'], null, null, date_default_timezone_get())."<br /> ".get_lang('By').' '.display_user_link($poster_id, $name);
 						}
 						echo "</td>\n";
 						echo "\t\t<td nowrap=\"nowrap\" align=\"center\">";

main/forum/viewforum.php

@@ -430,7 +430,7 @@ if(is_array($threads)) {
 
 			// if the last post is invisible and it is not the teacher who is looking then we have to find the last visible post of the thread
 			if (($row['visible']=='1' OR api_is_allowed_to_edit(false,true)) && $origin!='learnpath') {
-				$last_post=$row['thread_date']." ".get_lang('By').' '.display_user_link($row['last_poster_user_id'], $name);
+				$last_post=api_get_local_time($row['thread_date'], null, null, date_default_timezone_get())." ".get_lang('By').' '.display_user_link($row['last_poster_user_id'], $name);
 			} elseif ($origin!='learnpath') {
 				$last_post_sql="SELECT post.*, user.firstname, user.lastname FROM $table_posts post, $table_users user WHERE post.poster_id=user.user_id AND visible='1' AND thread_id='".$row['thread_id']."' ORDER BY post_id DESC";
 				$last_post_result=Database::query($last_post_sql);

main/forum/viewthread_flat.inc.php

@@ -60,7 +60,7 @@ foreach ($rows as $row) {
 	} else {
 		echo $name. '<br />';
 	}
-	echo $row['post_date'].'<br /><br />';
+	echo api_get_local_time($row['post_date'], null, null, date_default_timezone_get()).'<br /><br />';
 	// get attach id
 	$attachment_list=get_attachment($row['post_id']);
 	$id_attach = !empty($attachment_list)?$attachment_list['id']:'';

main/forum/viewthread_nested.inc.php

@@ -69,7 +69,7 @@ foreach ($rows as $post) {
 		echo '<br />'.display_user_image($post['user_id'],$name,$origin).'<br />';
 	}
 	echo display_user_link($post['user_id'], $name, $origin).'<br />';
-	echo $post['post_date'].'<br /><br />';
+	echo api_get_local_time($post['post_date'], null, null, date_default_timezone_get()).'<br /><br />';
 	// get attach id
 	$attachment_list=get_attachment($post['post_id']);
 	$id_attach = !empty($attachment_list)?$attachment_list['id']:'';

main/forum/viewthread_threaded.inc.php

@@ -216,7 +216,7 @@ else
 }
 if (api_get_course_setting('allow_user_image_forum')) {echo '<br />'.display_user_image($rows[$display_post_id]['user_id'],$name, $origin).'<br />';	}
 echo display_user_link($rows[$display_post_id]['user_id'], $name, $origin).'<br />';
-echo $rows[$display_post_id]['post_date'].'<br /><br />';
+echo api_get_local_time($rows[$display_post_id]['post_date'], null, null, date_default_timezone_get()).'<br /><br />';
 // get attach id
 $attachment_list=get_attachment($display_post_id);
 $id_attach = !empty($attachment_list)?$attachment_list['id']:'';

main/gradebook/lib/gradebook_data_generator.class.php

@@ -217,7 +217,7 @@ class GradebookDataGenerator
 		if (!isset($date) || empty($date)) {
 			return '';
 		} else {
-			return date("j/n/Y g:i", $date);
+			return api_get_local_time((int)$date, null, null, date_default_timezone_get());
 		}
 	}
 }

main/inc/lib/blog.lib.php

@@ -734,8 +734,8 @@ class Blog {
 				// Prepare data
 				$blog_post_id = $blog_post['post_id'];
 				$blog_post_text = make_clickable(stripslashes($blog_post['full_text']));
-				$blog_post_date = api_ucfirst(format_locale_date($dateFormatLong,strtotime($blog_post['date_creation'])));
+				$blog_post_date = api_get_local_time($blog_post['date_creation'], $dateFormatLong, null, date_default_timezone_get());
-				$blog_post_time = date('H:i',strtotime($blog_post['date_creation']));
+				$blog_post_time = api_get_local_time($blog_post['date_creation'], 'H:i', null, date_default_timezone_get());
 
 				// Create an introduction text (but keep FULL sentences)
 				$limit = 100; //nmbr of words in introduction text

main/inc/lib/glossary.lib.php

@@ -380,6 +380,10 @@ class GlossaryManager {
 				$array[5] = $data[5];
 			}
 			
+			// Date treatment for timezones
+			$array[3] = api_get_local_time($array[3], null, null, date_default_timezone_get());
+			$array[4] = api_get_local_time($array[4], null, null, date_default_timezone_get());
+
 			$return[] = $array;
 		}
 

main/inc/lib/main_api.lib.php

@@ -4467,3 +4467,51 @@ function api_send_mail($to, $subject, $message, $additional_headers = null, $add
 	$mail->ClearAddresses();
 	return 1;
 }
+
+/**
+ * Returns the local time in a format given as an argument
+ * @param string The time to be converted
+ * @param string The format to be used. The default format is DATETIME
+ * @param string The timezone to be converted to. If null, the timezone will be determined based on user preference, or timezone chosen by the admin for the platform.
+ * @param string The timezone to be converted from. If null, UTC will be assumed.
+ * @return string The converted time
+ * 
+ * @author Guillaume Viguier <guillaume.viguier@beeznest.com>
+ */
+function api_get_local_time($time, $format=null, $to_timezone=null, $from_timezone=null) {
+	// Determining the timezone to be converted from
+	if ($from_timezone === null) {
+		$from_timezone = 'UTC';
+	}
+	// Determining the timezone to be converted to
+	if ($to_timezone === null) {
+		// First, get the default timezone of the server
+		$to_timezone = date_default_timezone_get();
+		// Second, see if a timezone has been chosen for the platform
+		$timezone_value = api_get_setting('timezone_value', 'timezones');
+		if ($timezone_value !== null) {
+			$to_timezone = $timezone_value;
+		}
+		// TODO: Get the timezone based on user preference
+	}
+	// Determine the format
+	if ($format === null) {
+		$format = 'Y-m-d H:i:s';
+	}
+	// If time is a timestamp, convert it to a string
+	if (is_int($time)) {
+		$time = date("Y-m-d H:i:s", $time);
+	}
+	try {
+		$date = new DateTime($time, new DateTimezone($from_timezone));
+		$date->setTimezone(new DateTimeZone($to_timezone));
+		// In the following case, the format is an internal Chamilo format, so we are using api_format_date
+		if (is_int($format) || strpos($format, '%') !== false) {
+			return api_format_date($format, strtotime($date->format("Y-m-d H:i:s")));
+		} else {	
+			return $date->format($format);
+		}
+	} catch (Exception $e) {
+		return null;
+	}
+}

main/mySpace/access_details.php

@@ -256,6 +256,9 @@ function get_connections_to_course($user_id, $course_code) {
         $login_date = $row['login_course_date'];
         $logout_date = $row['logout_course_date'];
         
+        $login_date = api_get_local_time($login_date, null, null, date_default_timezone_get());
+        $logout_date = api_get_local_time($logout_date, null, null, date_default_timezone_get());
+
         $timestamp_login_date = strtotime($login_date);
         $timestamp_logout_date = strtotime($logout_date);
 

main/work/work.php

@@ -1194,10 +1194,12 @@ if($is_special > 0):
 		if (!$not_ends_on) {
 			define('ASSIGNMENT_EXPIRES',$time_expires);
 		}
-		$ends_on = api_ucfirst(format_locale_date($dateFormatLong,strtotime($homework['ends_on']))).' ';
+		$ends_on_datetime = api_get_local_time($homework['ends_on'], null, null, date_default_timezone_get());
-		$ends_on .= ucfirst(strftime($timeNoSecFormat,strtotime($homework['ends_on'])));
+		$ends_on = api_ucfirst(format_locale_date($dateFormatLong,strtotime($ends_on_datetime))).' ';
-		$expires_on = api_ucfirst(format_locale_date($dateFormatLong,strtotime($homework['expires_on']))).' ';
+		$ends_on .= ucfirst(strftime($timeNoSecFormat,strtotime($ends_on_datetime)));
-		$expires_on .= ucfirst(strftime($timeNoSecFormat,strtotime($homework['expires_on'])));
+		$expires_on_datetime = api_get_local_time($homework['expires_on'], null, null, date_default_timezone_get());
+		$expires_on = api_ucfirst(format_locale_date($dateFormatLong,strtotime($expires_on_datetime))).' ';
+		$expires_on .= ucfirst(strftime($timeNoSecFormat,strtotime($expires_on_datetime)));
 		if($has_ended) {
 			display_action_links($cur_dir_path, $always_show_tool_options,true);
 			Display :: display_error_message(get_lang('EndDateAlreadyPassed').' '.$ends_on);