Nette
Database

database layer
for PHP

Database Core

Nette Database Core je is database abstraction layer and provides core functionality. It is a wrapper around the PDO and provides core functionality.

Database Explorer

Nette Database Explorer significantly simplifies retrieving data from the database without writing SQL queries. It uses efficient queries and does not transmit unnecessary data.

Over 10 Years

We have been developing Latte for over 10 years- and counting! Libraries we provide are therefore highly mature, stable and widely used. They are trusted by a number of global corporations and many significant websites rely on us. Who uses and trusts Latte?

Database

Nette Framework provides a powerful layer for accessing your database easily.

  • composes SQL queries with ease
  • easily fetches data
  • uses efficient queries and does not transmit unnecessary data

The Nette Database Core is a wrapper around the PDO and provides core functionality.

The Nette Database Explorer layer helps you to fetch database data more easily and in a more optimized way.

Creating a connection

To create a new database connection just create a new instance of Nette\Database\Connection class:

$connection = new Nette\Database\Connection($dsn, $user, $password);
Database server DSN name Core support Explorer support
MySQL mysql YES YES
PostgreSQL pgsql YES YES
Sqlite 3 sqlite YES YES
Sqlite 2 sqlite2 YES
Oracle oci YES
MS SQL (PDO_SQLSRV) sqlsrv YES YES
MS SQL (PDO_DBLIB) mssql YES
ODBC odbc YES

The 4th optional parameter of the connection constructor allows you to specify some options. These options are passed to the PDO constructor and the internal driver constructor, so they can contain a configuration for both the PDO instance and the driver instance.

If you want that connection with the database server is not created immediately after an instance of Connection is created but only when the database is used, you can do so by setting the configuration to 'lazy' => TRUE.

The internal driver class name is detected by provided DSN. However, you can provide you own implementation of an internal driver. To do this, pass your driver name as an option with the driverClass key.

$connection = new Connection($dsn, $user, $password, array(
    'lazy' => FALSE,
    'driverClass' => 'App\YourSpecificDriverImplementationName'
));

The easiest way to create a connection is to configure one in your application config, which allows you create multiple connections and helps you to add database panel to Tracy debug bar.

database:
    default:
        dsn:          "mysql:host=127.0.0.1;dbname=test"
        user:         "root"
        password:     "password"
        options:      [PDO::MYSQL_ATTR_COMPRESS = true]
        debugger:     true        # debugger bar panel
        explain:      true        # explain queries in debugger bar
        conventions:  discovered  # or static or name of your class, default is discovered
        autowired:    true
    anotherConnection:
        dsn: ...
        autowired: false

Queries

Database\Connection allows you to easily query your database by calling query method, which returns ResultSet.

$connection->query('INSERT INTO users', array( // an array can be a parameter
    'name' => 'Jim',
    'created' => new DateTime, // or a DateTime object
    'avatar' => fopen('image.gif', 'r'), // or a file
), ...); // it is even possible to use multiple inserts

$connection->query('UPDATE users SET ? WHERE id=?', $data, $id);
$connection->query('SELECT * FROM categories WHERE id=?', 123)->dump();