Increase config value length limit (#13178)

Up to 16MB of text now

database/migrations/2021_08_26_093522_config_value_to_medium_text.php

@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class ConfigValueToMediumText extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('config', function (Blueprint $table) {
+            $table->mediumText('config_value')->change();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('config', function (Blueprint $table) {
+            $table->string('config_value', 512)->change();
+        });
+    }
+}

misc/db_schema.yaml

@@ -439,7 +439,7 @@ config:
   Columns:
     - { Field: config_id, Type: 'int unsigned', 'Null': false, Extra: auto_increment }
     - { Field: config_name, Type: varchar(255), 'Null': false, Extra: '' }
-    - { Field: config_value, Type: varchar(512), 'Null': false, Extra: '' }
+    - { Field: config_value, Type: mediumtext, 'Null': false, Extra: '' }
   Indexes:
     PRIMARY: { Name: PRIMARY, Columns: [config_id], Unique: true, Type: BTREE }
     config_config_name_unique: { Name: config_config_name_unique, Columns: [config_name], Unique: true, Type: BTREE }