Laravel migrations: dropping a specific table

℡╲_俬逩灬. 提交于 2020-01-23 08:39:06

问题


Is there any way/laravel-command to drop a specific table from the production server?


回答1:


Set up a migration.

Run this command to set up a migration:

php artisan make:migration drop_my_table

Then you can structure your migration like this:

<?php

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class DropMyTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        // drop the table
        Schema::dropIfExists('my_table');
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        // create the table
        Schema::create('my_table', function (Blueprint $table) {
            $table->increments('id');
            // .. other columns
            $table->timestamps();
        });
    }
}

You can of course just drop and not check for existence:

Schema::drop('my_table');

Read further in the docs here:

https://laravel.com/docs/5.2/migrations#writing-migrations

You may also have to consider dropping any existing foreign keys/indexes, for example if you wanted to drop a primary key:

public function up()
{
    Schema::table('my_table', function ($table) {
        $table->dropPrimary('my_table_id_primary');
    });

    Schema::dropIfExists('my_table');
}

More in the docs in dropping indexes etc here:

https://laravel.com/docs/5.2/migrations#dropping-indexes




回答2:


you can use php artisan migrate:rollback --help to see if there are a command for drop the scpecific table.

here is my output :

as you can see there are no option in laravel to drop specific table. not yet. CMIW. as another way out is to delete them manually or using phpmyadmin. Hope it helps



来源:https://stackoverflow.com/questions/37249235/laravel-migrations-dropping-a-specific-table

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