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<?php
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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 CreateTableCommentsTable 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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Schema::create('table_comments', function (Blueprint $table) {
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$table->increments('id');
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$table->timestamps();
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$table->unsignedInteger('ancestor_id')->index()->nullable();
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$table->unsignedInteger('author_id')->index();
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$table->unsignedInteger('table_id')->index();
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$table->text('message');
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$table->foreign('table_id')->references('id')->on('tables')
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->onDelete('cascade');
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$table->foreign('author_id')->references('id')->on('users')
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->onDelete('cascade');
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$table->foreign('ancestor_id')->references('id')->on('table_comments')
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->onDelete('set null');
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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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Schema::dropIfExists('table_comments');
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}
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}
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