35 lines
1016 B
PHP
35 lines
1016 B
PHP
<?php
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use Illuminate\Database\Migrations\Migration;
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use Illuminate\Database\Schema\Blueprint;
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use Illuminate\Support\Facades\Schema;
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return new class extends Migration
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{
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/**
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* Run the migrations.
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*/
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public function up(): void
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{
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Schema::table('articles', function (Blueprint $table) {
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// 阿诺提醒：morphs('oSubject') 会生成 oSubject_id 和 oSubject_type
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// 并且会自动建立复合索引，非常扎实！
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$table->morphs('oSubject');
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// 如果你之前已经有数据了，建议给这两个字段允许 null，防止迁移报错
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// $table->morphs('oSubject')->nullable();
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});
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}
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/**
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* Reverse the migrations.
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*/
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public function down(): void
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{
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Schema::table('articles', function (Blueprint $table) {
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// 降级操作：把这两个字段和索引一并撤销，保持数据库清爽
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$table->dropMorphs('oSubject');
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});
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}
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};
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