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database/migrations/2025_08_19_180822_add_sort_field_to_project_users_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class AddSortFieldToProjectUsersTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('project_users', function (Blueprint $table) {
+            // 添加一个排序sort字段
+            if (!Schema::hasColumn('project_users', 'sort')) {
+                $table->integer('sort')->nullable()->default(0)->after('top_at')->comment('排序(ASC)');
+            }
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('project_users', function (Blueprint $table) {
+            // 删除排序sort字段
+            if (Schema::hasColumn('project_users', 'sort')) {
+                $table->dropColumn('sort');
+            }
+        });
+    }
+}