reduce number of sql queries on shift calendar

db/update.sql

@@ -19,3 +19,7 @@ ALTER TABLE `AngelTypes`
 
   
 INSERT INTO `Privileges` (`id`, `name`, `desc`) VALUES (NULL, 'shiftentry_edit_angeltype_supporter', 'If user with this privilege is angeltype supporter, he can put users in shifts for their angeltype');
+
+
+-- DB Performance
+ALTER TABLE `Shifts` ADD INDEX(`start`);

includes/model/NeededAngelTypes_model.php

@@ -84,13 +84,12 @@ function NeededAngelTypes_by_shift($shiftId) {
     }
   }
   
+  $shift_entries = ShiftEntries_by_shift($shiftId);
   $needed_angeltypes = [];
   foreach ($needed_angeltypes_source as $angeltype) {
-    $shift_entries = ShiftEntries_by_shift_and_angeltype($shiftId, $angeltype['angel_type_id']);
-    
     $angeltype['taken'] = 0;
     foreach($shift_entries as $shift_entry) {
-      if($shift_entry['freeloaded'] == 0) {
+      if($shift_entry['TID']==$angeltype['id'] && $shift_entry['freeloaded'] == 0) {
         $angeltype['taken']++;
       }
     }

includes/model/ShiftEntry_model.php

@@ -28,7 +28,7 @@ function ShiftEntries_freeleaded_count() {
  */
 function ShiftEntries_by_shift($shift_id) {
   return sql_select("
-      SELECT `User`.`Nick`, `User`.`email`, `User`.`email_shiftinfo`, `User`.`Sprache`, `ShiftEntry`.`UID`, `ShiftEntry`.`TID`, `ShiftEntry`.`SID`, `AngelTypes`.`name` as `angel_type_name`, `ShiftEntry`.`Comment`, `ShiftEntry`.`freeloaded`
+      SELECT `User`.`Nick`, `User`.`email`, `User`.`email_shiftinfo`, `User`.`Sprache`, `User`.`Gekommen`, `ShiftEntry`.`UID`, `ShiftEntry`.`TID`, `ShiftEntry`.`SID`, `AngelTypes`.`name` as `angel_type_name`, `ShiftEntry`.`Comment`, `ShiftEntry`.`freeloaded`
       FROM `ShiftEntry`
       JOIN `User` ON `ShiftEntry`.`UID`=`User`.`UID`
       JOIN `AngelTypes` ON `ShiftEntry`.`TID`=`AngelTypes`.`id`

includes/mysqli_provider.php

@@ -131,6 +131,9 @@ function sql_select_db($db_name) {
 function sql_select($query) {
   global $sql_connection;
   
+  echo $query . ";\n";
+  echo debug_string_backtrace() . "\n";
+  
   $result = $sql_connection->query($query);
   if ($result) {
     $data = [];

includes/view/ShiftCalendarShiftRenderer.php

@@ -107,7 +107,7 @@ class ShiftCalendarShiftRenderer {
     $entry_list = [];
     foreach ($angeltype['shift_entries'] as $entry) {
       $style = $entry['freeloaded'] ? " text-decoration: line-through;" : '';
-      $entry_list[] = "<span style=\"$style\">" . User_Nick_render(User($entry['UID'])) . "</span>";
+      $entry_list[] = "<span style=\"$style\">" . User_Nick_render($entry) . "</span>";
     }
     $shift_signup_state = Shift_signup_allowed($user, $shift, $angeltype);
     $inner_text = sprintf(ngettext("%d helper needed", "%d helpers needed", $shift_signup_state->getFreeEntries()), $shift_signup_state->getFreeEntries());