laravel set table prefix

Laravel is a popular PHP framework that is widely used in the development of web applications. In Laravel, we can operate the database very conveniently. It not only supports multiple types of databases, but also provides rich ORM implementations, such as Eloquent ORM, which allows us to interact with the database very efficiently.

In some cases, we may need to add some prefixes to Laravel tables, which can facilitate us to distinguish different tables and help better manage the structure of the database. Next, this article will introduce several methods to set the Laravel table prefix.

Method 1: Set through the configuration file

In Laravel, we can set the table prefix by modifying the config/database.php file. Specifically, you can add a prefix attribute to the corresponding database configuration item to specify the prefix of the table. For example:

'mysql' => [
    'driver' => 'mysql',
    'url' => env('DATABASE_URL'),
    'host' => env('DB_HOST', '127.0.0.1'),
    'port' => env('DB_PORT', '3306'),
    'database' => env('DB_DATABASE', 'forge'),
    'username' => env('DB_USERNAME', 'forge'),
    'password' => env('DB_PASSWORD', ''),
    'unix_socket' => env('DB_SOCKET', ''),
    'charset' => 'utf8mb4',
    'collation' => 'utf8mb4_unicode_ci',
    'prefix' => 'my_',
    'prefix_indexes' => true,
    'strict' => true,
    'engine' => null,
    'options' => extension_loaded('pdo_mysql') ? array_filter([
        PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
    ]) : [],
],

In the above configuration, we specify the prefix of the table by adding a prefix attribute to the mysql configuration item. The prefix here is my_.

Method 2: Setting through the model

In addition to setting the table prefix through the configuration file, we can also set the table prefix by modifying the $table attribute in the Eloquent ORM model. Specifically, we can add the following line of code to the model:

protected $table = 'my_table';

In the above code, we set the $table attribute to my_table, where the my_ The prefix is ​​the specified table prefix.

However, this method requires modification of each model to avoid conflicts of table names in each model, and different prefixes need to be set.

Method 3: Setting through DB class

In addition to the above two methods, we can also use the DB class provided by Laravel to set the table prefix. Specifically, you can use the DB::table method in the SQL statement to specify the table name, for example:

DB::table('my_table')->insert(['name' => 'test']);

In the above code, we used DB::table Method to specify the table name my_table, where the my_ prefix is ​​the specified table prefix. We can use the DB::table method to specify the table prefix in SQL statements to flexibly and conveniently manage the database structure.

Summary

This article introduces three common methods of setting Laravel table prefix: setting through configuration files, setting through models, and setting through DB classes. Each of these three methods has its own advantages and disadvantages, and you need to choose the appropriate method according to actual needs. No matter which method you choose, you need to pay attention to the uniqueness of the table prefix to avoid naming conflicts. At the same time, the table prefix setting can also be used well in conjunction with database migration, data filling and other functions in Laravel. For example, the table prefix can be specified in the migration script to automatically create a prefixed table structure.

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