pwfoo / db

Database Library providing a PDO factory and CRUD operations

DealNews Datbase Library

Factory

The factory creates PDO objects using \DealNews\GetConfigto read database settings and create a PDO database connection.

Supported Settings

Setting	Description
type	This may be one of pdo, mysql, or pgsql. All types return PDO connections.
dsn	A valid PDO DSN. See each driver for specifics
db	The name of the database. For PDO, this is usually in the DSN.
server	One of more comma separated servers names. Not used by the pdo type.
port	Server port. Not used by the pdo type.
user	Database user name. Not all PDO drivers require one.
pass	Database password. Not all PDO drivers require one.
charset	Character set to use for mysql connections. The default is utf8mb4.
options	A JSON encoded array of options to pass to the PDO constructor. These vary by driver

Usage

Example:

$mydb = \DealNews\DB\Factory::init("mydb");

CRUD

The CRUD class is a helper that wraps up common PDO logic for CRUD operations.

Basic Usage

$mydb = \DealNews\DB\Factory::init("mydb");
$crud = new \DealNews\DB\CRUD($mydb);

// Create
$result = $crud->create(
    // table name
    "test",
    // data to add
    [
        "name"        => $name,
        "description" => $description,
    ]
);

// Read
$rows = $crud->read(
    // table name
    "test",
    // where clause data
    ["id" => $id]
);

// Update
$result = $crud->update(
    // table name
    "test",
    // data to update
    ["name" => "Test"],
    // where clause data
    ["id" => $id]
);

// Delete
$result = $crud->delete(
    // table name
    "test",
    // where clause data
    ["id" => $row["id"]]
);

Advanced Usage

The class also exposes a run method which is used internally by the other methods. Complex queries can be run using this method by providing an SQL query and a parameter array which will be mapped to the prepared query. It returns a PDOStatement object.

// Run a select with no parameters
$stmt = $crud->run("select * from table limit 10");

// Run a select query with paramters
$stmt = $crud->run(
    "select * from table where foo = :foo"
    [
        ":foo" => $foo
    ]
);

Testing

By default, only unit tests are run. To run the functional tests the host machine will need to be a docker host. Also, the pdo_pgsql, pdo_mysql, and pdo_sqlite extensions must be installed on the host machine. PHPUnit will start and stop docker containers to test the MySQL and Postgres connections. Use --group functional when running PHPUnit to run these tests.