pixie

This project is Not Actively Maintained but most of the features are fully working and there are no major security issues, I'm just not giving it much time.

Pixie Query Builder

A lightweight, expressive, framework agnostic query builder for PHP it can also be referred as a Database Abstraction Layer. Pixie supports MySQL, SQLite and PostgreSQL and it takes care of query sanitization, table prefixing and many other things with a unified API.

It has some advanced features like:

• Query Events
• Nested Criteria
• Sub Queries
• Nested Queries
• Multiple Database Connections.

The syntax is quite similar to Laravel's query builder.

Example

…

Simple Query:

The query below returns the row where id = 3, null if no rows.

$row = QB::table('my_table')->find(3);

Full Queries:

$query = QB::table('my_table')->where('name', '=', 'Sana');

// Get result
$query->get();

Query Events:

After the code below, every time a select query occurs on users table, it will add this where criteria, so banned users don't get access.

QB::registerEvent('before-select', 'users', function($qb)
{
    $qb->where('status', '!=', 'banned');
});

There are many advanced options which are documented below. Sold? Let's install.

Installation

Pixie uses Composer to make things easy.

Learn to use composer and add this to require section (in your composer.json):

"usmanhalalit/pixie": "2.*@dev"

And run:

composer update

Library on Packagist.

Full Usage API

Table of Contents

• Connection
  • Alias
  • Multiple Connection
  • SQLite and PostgreSQL Config Sample
• Query
• Select
  • Get Easily
  • Multiple Selects
  • Select Distinct
  • Get All
  • Get First Row
  • Get Rows Count
• Where
  • Where In
  • Where Between
  • Where Null
  • Grouped Where
• Group By and Order By
• Having
• Limit and Offset
• Join
  • Multiple Join Criteria
• Raw Query
  • Raw Expressions
• Insert
  • Batch Insert
  • Insert with ON DUPLICATE KEY statement
• Update
• Delete
• Transactions
• Get Built Query
• Sub Queries and Nested Queries
• Get PDO Instance
• Fetch results as objects of specified class
• Query Events
  • Available Events
  • Registering Events
  • Removing Events
  • Some Use Cases
  • Notes

Connection

Pixie supports three database drivers, MySQL, SQLite and PostgreSQL. You can specify the driver during connection and the associated configuration when creating a new connection. You can also create multiple connections, but you can use alias for only one connection at a time.;

…

Alias

When you create a connection:

new \Pixie\Connection('mysql', $config, 'MyAlias');

MyAlias is the name for the class alias you want to use (like MyAlias::table(...)), you can use whatever name (with Namespace also, MyNamespace\\MyClass) you like or you may skip it if you don't need an alias. Alias gives you the ability to easily access the QueryBuilder class across your application.

When not using an alias you can instantiate the QueryBuilder handler separately, helpful for Dependency Injection and Testing.

$connection = new \Pixie\Connection('mysql', $config);
$qb = new \Pixie\QueryBuilder\QueryBuilderHandler($connection);

$query = $qb->table('my_table')->where('name', '=', 'Sana');

var_dump($query->get());

$connection here is optional, if not given it will always associate itself to the first connection, but it can be useful when you have multiple database connections.

SQLite and PostgreSQL Config Sample

new \Pixie\Connection('sqlite', array(
                'driver'   => 'sqlite',
			    'database' => 'your-file.sqlite',
			    'prefix'   => 'cb_',
		    ), 'QB');

new \Pixie\Connection('pgsql', array(
                    'driver'   => 'pgsql',
                    'host'     => 'localhost',
                    'database' => 'your-database',
                    'username' => 'postgres',
                    'password' => 'your-password',
                    'charset'  => 'utf8',
                    'prefix'   => 'cb_',
                    'schema'   => 'public',
                ), 'QB');

Query

You must use table() method before every query, except raw query(). To select from multiple tables just pass an array.

QB::table(array('mytable1', 'mytable2'));

Get Easily

The query below returns the (first) row where id = 3, null if no rows.

$row = QB::table('my_table')->find(3);

Access your row like, echo $row->name. If your field name is not id then pass the field name as second parameter QB::table('my_table')->find(3, 'person_id');.

The query below returns the all rows where name = 'Sana', null if no rows.

$result = QB::table('my_table')->findAll('name', 'Sana');

Select

$query = QB::table('my_table')->select('*');

Multiple Selects

->select(array('mytable.myfield1', 'mytable.myfield2', 'another_table.myfield3'));

Using select method multiple times select('a')->select('b') will also select a and b. Can be useful if you want to do conditional selects (within a PHP if).

Select Distinct

->selectDistinct(array('mytable.myfield1', 'mytable.myfield2'));

Get All

Return an array.

$query = QB::table('my_table')->where('name', '=', 'Sana');
$result = $query->get();

You can loop through it like:

foreach ($result as $row) {
    echo $row->name;
}

Get First Row

$query = QB::table('my_table')->where('name', '=', 'Sana');
$row = $query->first();

Returns the first row, or null if there is no record. Using this method you can also make sure if a record exists. Access these like echo $row->name.

Get Rows Count

$query = QB::table('my_table')->where('name', '=', 'Sana');
$query->count();

Where

Basic syntax is (fieldname, operator, value), if you give two parameters then = operator is assumed. So where('name', 'usman') and where('name', '=', 'usman') is the same.

QB::table('my_table')
    ->where('name', '=', 'usman')
    ->whereNot('age', '>', 25)
    ->orWhere('type', '=', 'admin')
    ->orWhereNot('description', 'LIKE', '%query%')
    ;

Where In

QB::table('my_table')
    ->whereIn('name', array('usman', 'sana'))
    ->orWhereIn('name', array('heera', 'dalim'))
    ;

QB::table('my_table')
    ->whereNotIn('name', array('heera', 'dalim'))
    ->orWhereNotIn('name', array('usman', 'sana'))
    ;

Where Between

QB::table('my_table')
    ->whereBetween('id', 10, 100)
    ->orWhereBetween('status', 5, 8);

Where Null

QB::table('my_table')
    ->whereNull('modified')
    ->orWhereNull('field2')
    ->whereNotNull('field3')
    ->orWhereNotNull('field4');

Grouped Where

Sometimes queries get complex, where you need grouped criteria, for example WHERE age = 10 and (name like '%usman%' or description LIKE '%usman%').

Pixie allows you to do so, you can nest as many closures as you need, like below.

QB::table('my_table')
            ->where('my_table.age', 10)
            ->where(function($q)
                {
                    $q->where('name', 'LIKE', '%usman%');
                    // You can provide a closure on these wheres too, to nest further.
                    $q->orWhere('description', 'LIKE', '%usman%');
                });

Group By and Order By

$query = QB::table('my_table')->groupBy('age')->orderBy('created_at', 'ASC');

Multiple Group By

->groupBy(array('mytable.myfield1', 'mytable.myfield2', 'another_table.myfield3'));

->orderBy(array('mytable.myfield1', 'mytable.myfield2', 'another_table.myfield3'));

Using groupBy() or orderBy() methods multiple times groupBy('a')->groupBy('b') will also group by first a and than b. Can be useful if you want to do conditional grouping (within a PHP if). Same applies to orderBy().

Having

->having('total_count', '>', 2)
->orHaving('type', '=', 'admin');

Limit and Offset

->limit(30);

->offset(10);

Join

QB::table('my_table')
    ->join('another_table', 'another_table.person_id', '=', 'my_table.id')

Available methods,

• join() or innerJoin
• leftJoin()
• rightJoin()

If you need FULL OUTER join or any other join, just pass it as 5th parameter of join method.

->join('another_table', 'another_table.person_id', '=', 'my_table.id', 'FULL OUTER')

Multiple Join Criteria

If you need more than one criterion to join a table then pass a closure as second parameter.

->join('another_table', function($table)
    {
        $table->on('another_table.person_id', '=', 'my_table.id');
        $table->on('another_table.person_id2', '=', 'my_table.id2');
        $table->orOn('another_table.age', '>', QB::raw(1));
    })

Raw Query

You can always use raw queries if you need,

$query = QB::query('select * from cb_my_table where age = 12');

var_dump($query->get());

You can also pass your bindings

QB::query('select * from cb_my_table where age = ? and name = ?', array(10, 'usman'));

Raw Expressions

When you wrap an expression with raw() method, Pixie doesn't try to sanitize these.

QB::table('my_table')
            ->select(QB::raw('count(cb_my_table.id) as tot'))
            ->where('value', '=', 'Ifrah')
            ->where(QB::raw('DATE(?)', 'now'))

NOTE: Queries that run through query() method are not sanitized until you pass all values through bindings. Queries that run through raw() method are not sanitized either, you have to do it yourself. And of course these don't add table prefix too, but you can use the addTablePrefix() method.

Insert

$data = array(
    'name' => 'Sana',
    'description' => 'Blah'
);
$insertId = QB::table('my_table')->insert($data);

insert() method returns the insert id.

Batch Insert

$data = array(
    array(
        'name'        => 'Sana',
        'description' => 'Blah'
    ),
    array(
        'name'        => 'Usman',
        'description' => 'Blah'
    ),
);
$insertIds = QB::table('my_table')->insert($data);

In case of batch insert, it will return an array of insert ids.

Insert with ON DUPLICATE KEY statement

$data = array(
    'name'    => 'Sana',
    'counter' => 1
);
$dataUpdate = array(
    'name'    => 'Sana',
    'counter' => 2
);
$insertId = QB::table('my_table')->onDuplicateKeyUpdate($dataUpdate)->insert($data);

Update

$data = array(
    'name'        => 'Sana',
    'description' => 'Blah'
);

QB::table('my_table')->where('id', 5)->update($data);

Will update the name field to Sana and description field to Blah where id = 5.

Delete

QB::table('my_table')->where('id', '>', 5)->delete();

Will delete all the rows where id is greater than 5.

Transactions

Pixie has the ability to run database "transactions", in which all database changes are not saved unti