将channel 的uid 改为 uuid类型

database/migrations/2022_05_25_054449_add_uuid_in_channels.php

@@ -0,0 +1,37 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class AddUuidInChannels extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('channels', function (Blueprint $table) {
+            //
+            $table->uuid('uuid')->default(DB::raw('uuid_generate_v1mc()'));
+            
+        });
+
+
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('channels', function (Blueprint $table) {
+            //
+            $table->dropColumn('uuid');
+        });
+    }
+}

database/migrations/2022_05_25_075215_rename_uuid_to_uid_in_channels.php

@@ -0,0 +1,59 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class RenameUuidToUidInChannels extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('channels', function (Blueprint $table) {
+            //
+        });
+
+        DB::transaction(function () {
+            $sql = 'UPDATE channels SET uuid = uuid(uid);';
+            DB::select($sql);
+            $sql = "ALTER TABLE channels DROP COLUMN uid;";
+            DB::select($sql);
+            $sql = "DROP INDEX IF EXISTS channels_uid_unique ;";
+            DB::select($sql);
+            $sql = "DROP INDEX IF EXISTS channels_uuid_unique ;";
+            DB::select($sql);
+            $sql = "ALTER TABLE channels RENAME COLUMN uuid TO uid;";
+            DB::select($sql);
+            $sql = "CREATE UNIQUE INDEX IF NOT EXISTS channels_uid_unique ON channels (uid);";
+            DB::select($sql);
+        });
+
+
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('channels', function (Blueprint $table) {
+            //
+            //$table->uuid('uuid')->default(DB::raw('uuid_generate_v1mc()'));
+
+        });
+        DB::transaction(function () {
+            $sql = "ALTER TABLE public.channels ADD uuid uuid NOT NULL DEFAULT uuid_generate_v1mc();";
+            DB::select($sql);
+            $sql = "CREATE UNIQUE INDEX IF NOT EXISTS channels_uuid_unique ON channels (uuid);";
+            DB::select($sql);
+            $sql = 'UPDATE channels SET uuid = uuid(uid);';
+            DB::select($sql);
+        });
+    }
+}