ActiveRedis is a PHP 5.3+ library that brings relational model abstraction to Redis.
- Simple
- Lightweight
- Extendable
ActiveRedis synthesizes a new, unorthodox implementation of the Active record pattern, borrowing good features from other libraries, but incorporating the simplicity of Redis.
ActiveRedis is free to use under the MIT License.
- Clone activeredis into your project, or add it as a submodule.
- Add the following code to run once in your project:
<?php
// Initialize
include 'activeredis/ActiveRedis.php';
// Connect to Redis
ActiveRedis\Database::connect('127.0.0.1:6379');The model classes can be quite simple.
<?php class Human extends ActiveRedis\Model {} ?><?php
// Create
$human = Human::create(array(
'name' => 'Wes',
'age' => 25,
));
// Retrieve
$human = Human::find(1);
// Update
$human->name = 'Wesley';
$human->save();
// Delete
$human->delete();Since Redis is NoSQL, you cannot use a WHERE clause to query for data. Instead, ActiveRedis provides Indexes which automatically index data in a customizable way.
<?php
class User extends ActiveRedis\Model {
static $indexes = array('name');
}
// Once the user is created...
$user = User::create(array('name' => 'Wesley Roberts'));
// It is possible to find the user by name
$user = User::find(array('name' => 'Wesley Roberts'));Associations are a very powerful addition to ActiveRedis that allows you to easily create meaningful relationships between your models. Below is a simple example where a User class is associated with potentially many Project objects. The format is simple, elastic, and easily configured. ActiveRedis is smart about namespaces and will usually guess the correct namespace for both your model & association classes.
<?php
class User extends ActiveRedis\Model {
static $associations = array(
'HasMany Projects',
);
}
class Project extends ActiveRedis\Model {
static $associations = array(
array('BelongsTo User', 'name' => 'owner'),
)
}
// Instantiate models
$user = new User(array('username' => 'test_user', 'password' => 'test'));
$project = new Project(array('name' => 'ActiveRedis'));
// Associate models
$user->projects[] = $project;
$project->owner = $user;
// The "DeepSave" behavior will auto-save associated models if necessary
// The "AutoAssociate" behavior will associate these models if necessary
$user->save();It's easy to build your own types of associations. Most of the association classes are only about 20 lines of PHP. See for yourself in lib/Associations.php.
Behaviors allow you to easily inject functionality into models by attaching custom callbacks to model events. Below is a simple example that sets a custom value before a model is saved.
<?php
class CustomModel extends ActiveRedis\Model {
static $behaviors = array('CustomBehavior');
}
class CustomBehavior extends ActiveRedis\Behavior {
function attach($table) {
$table->bind('beforeSave', 'CustomBehavior::beforeSave');
}
function beforeSave($model) {
$model->customValue = true;
}
}If you create your own Model class that extends ActiveRedis\Model, it's easy to trigger your own custom events via $this->trigger('eventName', $arguments');.
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