DialectORM

Tiny, fast, super-simple but versatile Object-Relational-Mapper (ORM) with Relationships for PHP, Python, JavaScript

see also:

• Importer simple class & dependency manager and loader for PHP, Python, Browser / Node.js / XPCOM JavaScript
• Contemplate a light-weight template engine for PHP, Python, Browser / Node.js / XPCOM JavaScript
• HtmlWidget html widgets used as (template) plugins and/or standalone for PHP, Python, Browser / Node.js / XPCOM JavaScript (can be used as plugins for Contemplate engine as well)
• PublishSubscribe a simple and flexible publish-subscribe pattern implementation for PHP, Python, Browser / Node.js / XPCOM JavaScript
• Dromeo a flexible, agnostic router for PHP, Python, Browser / Node.js / XPCOM JavaScript
• Dialect flexible cross-vendor & cross-platform SQL Query Builder for PHP, Python, JavaScript
• StringTemplate simple and flexible string templates for PHP, Python, Browser / Node.js / XPCOM JavaScript
• GrammarTemplate versatile and intuitive grammar-based templating for PHP, Python, Browser / Node.js / XPCOM JavaScript
• Xpresion a simple and flexible eXpression parser engine (with custom functions and variables support) for PHP, Python, Browser / Node.js / XPCOM JavaScript
• Regex Analyzer/Composer Regular Expression Analyzer and Composer for PHP, Python, Browser / Node.js / XPCOM JavaScript
• RT client-side real-time communication for Node/XPCOM/JS with support for Poll / BOSH / WebSockets
• Asynchronous a simple manager for async, linearised, parallelised, interleaved and sequential tasks for JavaScript
• ModelView a light-weight and flexible MVVM framework for JavaScript/HTML5
• ModelView MVC jQueryUI Widgets plug-n-play, state-full, full-MVC widgets for jQueryUI using modelview.js (e.g calendars, datepickers, colorpickers, tables/grids, etc..) (in progress)

Dependencies:

• Dialect
• PHP: 5.3+
• Python: 3+
• JavaScript: ES7+

example (see /test folder)

define('DIR', dirname(__FILE__));
include(DIR.'/../../src/php/DialectORM.php');
include(DIR.'/PDODb.php');

DialectORM::dependencies([
    'Dialect' => DIR.'/Dialect.php',
]);
DialectORM::DBHandler(new PDODb([
    'dsn' => 'mysql:host=localhost;dbname=dialectorm',
    'user' => 'dialectorm',
    'password' => 'dialectorm'
], 'mysql'));

class Post extends DialectORM
{
    public static $table = 'posts';
    public static $pk = 'id';
    public static $fields = ['id', 'content'];
    public static $relationships = [
        'meta' => ['hasOne', 'PostMeta', 'post_id'],
        'comments' => ['hasMany', 'Comment', 'post_id'],
        'authors' => ['belongsToMany', 'User', 'user_id', 'post_id', 'user_post'],
    ];

    public function typeId($x)
    {
        return (int)$x;
    }

    public function typeContent($x)
    {
        return (string)$x;
    }

    public function validateContent($x)
    {
        return 0 < strlen($x);
    }
}

class PostMeta extends DialectORM
{
    public static $table = 'postmeta';
    public static $pk = 'id';
    public static $fields = ['id', 'status', 'type', 'post_id'];
    public static $relationships = [
        'post' => ['belongsTo', 'Post', 'post_id']
    ];

    public function typeId($x)
    {
        return (int)$x;
    }

    public function typePostId($x)
    {
        return (int)$x;
    }

    public function typeStatus($x)
    {
        return strtolower((string)$x);
    }

    public function typeType($x)
    {
        return strtolower((string)$x);
    }

    public function validateStatus($x)
    {
        return in_array($x, ['approved', 'published', 'suspended']);
    }

    public function validateType($x)
    {
        return in_array($x, ['article', 'tutorial', 'general']);
    }
}

class Comment extends DialectORM
{
    public static $table = 'comments';
    public static $pk = 'id';
    public static $fields = ['id', 'content', 'post_id'];
    public static $relationships = [
        'post' => ['belongsTo', 'Post', 'post_id'],
    ];

    public function typeId($x)
    {
        return (int)$x;
    }

    public function typeContent($x)
    {
        return (string)$x;
    }

    public function typePostId($x)
    {
        return (int)$x;
    }

    public function validateContent($x)
    {
        return 0 < strlen($x);
    }
}

class User extends DialectORM
{
    public static $table = 'users';
    public static $pk = 'id';
    public static $fields = ['id', 'name'];
    public static $relationships = [
        'posts' => ['belongsToMany', 'Post', 'post_id', 'user_id', 'user_post'],
    ];

    public function typeId($x)
    {
        return (int)$x;
    }

    public function typeName($x)
    {
        return (string)$x;
    }

    public function validateName($x)
    {
        return 0 < strlen($x);
    }
}

$post = new Post(['content'=>'another post..']);
// alternative
//$post = new Post(); $post->setContent('another post..');

$post->setComments([new Comment(['content'=>'another comment..'])]);
$post->setComments([new Comment(['content'=>'still another comment..'])], ['merge'=>true]);

$post->setAuthors([new User(['name'=>'bar'])], ['merge'=>true]);

// alternative
//$user = new User(['name'=>'bar']);
//$user->save();
//$post->assocAuthors([$user]);

// to simply dissociate from a many-to-many relationship
//$post->dissocAuthors([$user]);

$post->save(['withRelated'=>['comments','authors']]);

//$post->delete(['withRelated'=>true]);

$count = Post::count(['conditions'=>[/../]]);
$posts = Post::fetchAll(['withRelated'=>['comments','authors']]); // eager load of relationships, no N+1 problem

//foreach(Post::fetchAll() as $post) $post->getComments(); // lazy load of relationships, N+1 problem