remove description fields from semester_data and termine, closes #2483

Closes #2483

Merge request studip/studip!1675

1 files changed, 34 insertions, 0 deletions

diff --git a/db/migrations/5.4.2_remove_description_fields.php b/db/migrations/5.4.2_remove_description_fields.php
new file mode 100644
index 0000000..1723778
--- /dev/null
+++ b/db/migrations/5.4.2_remove_description_fields.php
@@ -0,0 +1,34 @@
+<?php
+final class RemoveDescriptionFields extends Migration
+{
+    public function description()
+    {
+        return 'Removes the unused database columns `termine`.`description`, `ex_termine`.`description` and `semester_data`.`description`';
+    }
+
+    protected function up()
+    {
+        $query = "ALTER TABLE `termine`
+                  DROP COLUMN `description`";
+        DBManager::get()->exec($query);
+        $query = "ALTER TABLE `ex_termine`
+                  DROP COLUMN `description`";
+        DBManager::get()->exec($query);
+        $query = "ALTER TABLE `semester_data`
+                  DROP COLUMN `description`";
+        DBManager::get()->exec($query);
+    }
+
+    protected function down()
+    {
+        $query = "ALTER TABLE `termine`
+                  ADD COLUMN `description` TEXT AFTER `content`";
+        DBManager::get()->exec($query);
+        $query = "ALTER TABLE `ex_termine`
+                  ADD COLUMN `description` TEXT AFTER `content`";
+        DBManager::get()->exec($query);
+        $query = "ALTER TABLE `semester_data`
+                  ADD COLUMN `description` TEXT NOT NULL AFTER `name`";
+        DBManager::get()->exec($query);
+    }
+}