72 lines
2.8 KiB
PHP
72 lines
2.8 KiB
PHP
<?php
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use Illuminate\Support\Facades\DB;
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use Illuminate\Support\Facades\Schema;
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use Illuminate\Database\Schema\Blueprint;
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use Illuminate\Database\Migrations\Migration;
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class AddCascadeOnTags 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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* @return void
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*/
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public function up()
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{
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if (DB::getDriverName() !== 'sqlite') {
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Schema::table('posts_tags', function (Blueprint $table) {
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$table->dropForeign('post_id');
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$table->foreign('post_id')->references('id')->on('posts')->onDelete('cascade')->onUpdate('cascade');
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$table->dropForeign('tag_id');
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$table->foreign('tag_id')->references('id')->on('tags')->onDelete('cascade')->onUpdate('cascade');
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});
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} else {
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// SQLite doesn't support drop foreign key
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Schema::rename('posts_tags', 'post_tags_bu');
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Schema::create('posts_tags', function (Blueprint $table) {
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$table->bigIncrements('id');
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$table->timestamps();
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$table->bigInteger('post_id');
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$table->bigInteger('tag_id');
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$table->foreign('post_id')->references('id')->on('posts')->onDelete('cascade')->onUpdate('cascade');
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$table->foreign('tag_id')->references('id')->on('tags')->onDelete('cascade')->onUpdate('cascade');
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});
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DB::insert('insert into posts_tags (id, post_id, tag_id, created_at, updated_at)
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select id, post_id, tag_id, created_at, updated_at from post_tags_bu');
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Schema::drop('post_tags_bu');
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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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* @return void
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*/
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public function down()
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{
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if (DB::getDriverName() !== 'sqlite') {
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Schema::table('posts_tags', function (Blueprint $table) {
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$table->dropForeign('post_id');
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$table->foreign('post_id')->references('id')->on('posts');
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$table->dropForeign('tag_id');
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$table->foreign('tag_id')->references('id')->on('tags');
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});
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} else {
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// SQLite doesn't support drop foreign key
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Schema::rename('posts_tags', 'post_tags_bu');
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Schema::create('posts_tags', function (Blueprint $table) {
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$table->bigIncrements('id');
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$table->timestamps();
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$table->bigInteger('post_id');
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$table->bigInteger('tag_id');
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$table->foreign('post_id')->references('id')->on('posts');
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$table->foreign('tag_id')->references('id')->on('tags');
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});
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DB::insert('insert into posts_tags (id, post_id, tag_id, created_at, updated_at)
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select id, post_id, tag_id, created_at, updated_at from post_tags_bu');
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Schema::drop('post_tags_bu');
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}
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}
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}
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