Refactor ReactionHandler

wcfsetup/install/files/acp/database/update_com.woltlab.wcf_6.3_step1.php

@@ -9,8 +9,11 @@
  */
 
 use wcf\system\database\table\column\DefaultFalseBooleanDatabaseTableColumn;
+use wcf\system\database\table\column\JsonDatabaseTableColumn;
+use wcf\system\database\table\column\MediumintDatabaseTableColumn;
 use wcf\system\database\table\column\NotNullVarchar255DatabaseTableColumn;
 use wcf\system\database\table\column\SmallintDatabaseTableColumn;
+use wcf\system\database\table\column\TextDatabaseTableColumn;
 use wcf\system\database\table\PartialDatabaseTable;
 
 return [
@@ -25,4 +28,14 @@
                 ->notNull()
                 ->defaultValue(1),
         ]),
+    PartialDatabaseTable::create('wcf1_like_object')
+        ->columns([
+            TextDatabaseTableColumn::create('cachedUsers')
+                ->drop(),
+            MediumintDatabaseTableColumn::create('dislikes')
+                ->notNull()
+                ->defaultValue(0)
+                ->drop(),
+            JsonDatabaseTableColumn::create('cachedReactions'),
+        ])
 ];

wcfsetup/install/files/acp/update_com.woltlab.wcf_6.3_likeObject.php

@@ -0,0 +1,9 @@
+<?php
+
+use wcf\system\WCF;
+
+// set `cachedReactions` to `NULL` so that it is possible to change the column type to `JSON`
+$sql = "UPDATE  wcf1_like_object
+        SET     cachedReactions = NULL";
+$statement = WCF::getDB()->prepare($sql);
+$statement->execute();