reduce complexity of shifts controller

includes/controller/angeltypes_controller.php

@@ -50,9 +50,6 @@ function angeltypes_about_controller() {
   } else {
     $angeltypes = AngelTypes();
   }
-  if ($angeltypes === false) {
-    engelsystem_error("Unable to load angeltypes.");
-  }
   
   return [
       _("Teams/Job description"),
@@ -223,9 +220,6 @@ function angeltypes_list_controller() {
   }
   
   $angeltypes = AngelTypes_with_user($user);
-  if ($angeltypes === false) {
-    engelsystem_error("Unable to load angeltypes.");
-  }
   
   foreach ($angeltypes as &$angeltype) {
     $actions = [

includes/controller/shift_entries_controller.php

@@ -21,9 +21,6 @@ function shift_entry_add_controller() {
   
   $shift = Shift($shift_id);
   $shift['Name'] = $room_array[$shift['RID']];
-  if ($shift === false) {
-    engelsystem_error('Unable to load shift.');
-  }
   if ($shift == null) {
     redirect(page_link_to('user_shifts'));
   }

includes/controller/shifts_controller.php

@@ -159,19 +159,13 @@ function shift_delete_controller() {
   $shift_id = $_REQUEST['delete_shift'];
   
   $shift = Shift($shift_id);
-  if ($shift === false) {
-    engelsystem_error('Unable to load shift.');
-  }
   if ($shift == null) {
     redirect(page_link_to('user_shifts'));
   }
   
   // Schicht löschen bestätigt
   if (isset($_REQUEST['delete'])) {
-    $result = Shift_delete($shift_id);
-    if ($result === false) {
-      engelsystem_error('Unable to delete shift.');
-    }
+    Shift_delete($shift_id);
     
     engelsystem_log("Deleted shift " . $shift['name'] . " from " . date("Y-m-d H:i", $shift['start']) . " to " . date("Y-m-d H:i", $shift['end']));
     success(_("Shift deleted."));
@@ -196,33 +190,15 @@ function shift_controller() {
   }
   
   $shift = Shift($_REQUEST['shift_id']);
-  if ($shift === false) {
-    engelsystem_error('Unable to load shift.');
-  }
   if ($shift == null) {
-    error(_('Shift could not be found.'));
+    error(_("Shift could not be found."));
     redirect(page_link_to('user_shifts'));
   }
   
   $shifttype = ShiftType($shift['shifttype_id']);
-  if ($shifttype === false || $shifttype == null) {
-    engelsystem_error('Unable to load shift type.');
-  }
-  
   $room = Room($shift['RID']);
-  if ($room === false || $room == null) {
-    engelsystem_error('Unable to load room.');
-  }
-  
   $angeltypes = AngelTypes();
-  if ($angeltypes === false) {
-    engelsystem_error('Unable to load angeltypes.');
-  }
-  
   $user_shifts = Shifts_by_user($user);
-  if ($user_shifts === false) {
-    engelsystem_error('Unable to load users shifts.');
-  }
   
   $signed_up = false;
   foreach ($user_shifts as $user_shift) {

includes/controller/shifttypes_controller.php

@@ -48,9 +48,6 @@ function shifttype_edit_controller() {
   $description = "";
   
   $angeltypes = AngelTypes();
-  if ($angeltypes === false) {
-    engelsystem_error("Unable to load angel types.");
-  }
   
   if (isset($_REQUEST['shifttype_id'])) {
     $shifttype = ShiftType($_REQUEST['shifttype_id']);

includes/model/AngelType_model.php

@@ -91,7 +91,7 @@ function AngelType_validate_name($name, $angeltype) {
  * @param User $user          
  */
 function AngelTypes_with_user($user) {
-  return sql_select("
+  $result = sql_select("
       SELECT `AngelTypes`.*, 
       `UserAngelTypes`.`id` as `user_angeltype_id`,
       `UserAngelTypes`.`confirm_user_id`,
@@ -100,16 +100,24 @@ function AngelTypes_with_user($user) {
       LEFT JOIN `UserAngelTypes` ON `AngelTypes`.`id`=`UserAngelTypes`.`angeltype_id` 
       AND `UserAngelTypes`.`user_id`=" . $user['UID'] . "
       ORDER BY `name`");
+  if ($result === false) {
+    engelsystem_error("Unable to load angeltypes.");
+  }
+  return $result;
 }
 
 /**
  * Returns all angeltypes.
  */
 function AngelTypes() {
-  return sql_select("
+  $result = sql_select("
       SELECT * 
       FROM `AngelTypes` 
       ORDER BY `name`");
+  if ($result === false) {
+    engelsystem_error("Unable to load angeltypes.");
+  }
+  return $result;
 }
 
 /**

includes/model/ShiftTypes_model.php

@@ -51,7 +51,7 @@ function ShiftType_create($name, $angeltype_id, $description) {
 function ShiftType($shifttype_id) {
   $shifttype = sql_select("SELECT * FROM `ShiftTypes` WHERE `id`='" . sql_escape($shifttype_id) . "'");
   if ($shifttype === false) {
-    return false;
+    engelsystem_error('Unable to load shift type.');
   }
   if ($shifttype == null) {
     return null;

includes/model/Shifts_model.php

@@ -93,9 +93,6 @@ function Shift_signup_allowed($shift, $angeltype, $user_angeltype = null, $user_
   
   if ($user_shifts == null) {
     $user_shifts = Shifts_by_user($user);
-    if ($user_shifts === false) {
-      engelsystem_error('Unable to load users shifts.');
-    }
   }
   
   $collides = Shift_collides($shift, $user_shifts);
@@ -166,7 +163,11 @@ function Shift_delete_by_psid($shift_psid) {
 function Shift_delete($shift_id) {
   mail_shift_delete(Shift($shift_id));
   
-  return sql_query("DELETE FROM `Shifts` WHERE `SID`='" . sql_escape($shift_id) . "'");
+  $result = sql_query("DELETE FROM `Shifts` WHERE `SID`='" . sql_escape($shift_id) . "'");
+  if ($result === false) {
+    engelsystem_error('Unable to delete shift.');
+  }
+  return $result;
 }
 
 /**
@@ -232,7 +233,7 @@ function Shift_create($shift) {
  * Return users shifts.
  */
 function Shifts_by_user($user) {
-  return sql_select("
+  $result = sql_select("
       SELECT `ShiftTypes`.`id` as `shifttype_id`, `ShiftTypes`.`name`, `ShiftEntry`.*, `Shifts`.*, `Room`.* 
       FROM `ShiftEntry` 
       JOIN `Shifts` ON (`ShiftEntry`.`SID` = `Shifts`.`SID`) 
@@ -241,6 +242,10 @@ function Shifts_by_user($user) {
       WHERE `UID`='" . sql_escape($user['UID']) . "' 
       ORDER BY `start`
       ");
+  if ($result === false) {
+    engelsystem_error('Unable to load users shifts.');
+  }
+  return $result;
 }
 
 /**
@@ -304,9 +309,13 @@ function Shift($shift_id) {
   $shiftsEntry_source = sql_select("SELECT `id`, `TID` , `UID` , `freeloaded` FROM `ShiftEntry` WHERE `SID`='" . sql_escape($shift_id) . "'");
   
   if ($shifts_source === false) {
-    return false;
+    engelsystem_error('Unable to load shift.');
   }
-  if (count($shifts_source) > 0) {
+  
+  if (empty($shifts_source)) {
+    return null;
+  }
+  
   $result = $shifts_source[0];
   
   $result['ShiftEntry'] = $shiftsEntry_source;
@@ -323,8 +332,6 @@ function Shift($shift_id) {
   }
   
   return $result;
-  }
-  return null;
 }
 
 /**