Laravel 迁移以更改表名

from the docs laravel.com/docs/5.1/migrations#renaming-and-dropping-tables

To change a table name, you can do this:

Schema::rename($currentTableName, $newTableName);

You can use the drop or dropIfExists methods to remove an existing table:

Schema::drop('users');


Schema::dropIfExists('users');

Just add that to a migration and it should work.

To rename an existing database table, use the rename method:

Schema::rename($from, $to);

To drop an existing table, you may use the drop or dropIfExists methods:

Schema::drop('users');


Schema::dropIfExists('users');

You can rename table like that

Schema::rename('old_table', 'new_table');

BUT be careful if you have foreign keys, indexes and unique-s.

you will not be able to deleted them after renaming, like thiat

Schema::table('new_table', function (Blueprint $table) {
$table->dropForeign(['transaction_id']);
});

because they will have old names and these names have table name in them.

Thus, I recommend deleting foreign keys and other stuff first

 Schema::table('old_table', function (Blueprint $table) {
$table->dropForeign(['transaction_id']);
});


Schema::rename('old_table', 'new_table');


Schema::table('new_table', function (Blueprint $table) {
$table->foreign('transaction_id')->references('id')->on('transactions');
});

Firstly, use CLI command to create a migration:

php artisan make:migration rename_table

Now, in the up method of the new migration class, use the rename method to change table name:

Schema::rename('old_table_name', 'new_table_name');

Next, execute the migration command:

php artisan migrate

Firstly, run this in your terminal to create a migration file to rename a table:

php artisan make:migration rename_old_name_to_new_name_table

Then in the up method, you should have this:

public function up()
{
Schema::rename('old_table_name', 'new_table_name');
}

Then in the down method, you should have this in case you want to revert previous changes made:

public function down()
{
Schema::rename('new_table_name', 'old_table_name');
}