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https://github.com/josegonzalez/cakephp-version
CakePHP3: plugin that facilitates versioned database entities
https://github.com/josegonzalez/cakephp-version
Last synced: 28 days ago
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CakePHP3: plugin that facilitates versioned database entities
- Host: GitHub
- URL: https://github.com/josegonzalez/cakephp-version
- Owner: josegonzalez
- License: mit
- Created: 2014-11-03T00:41:17.000Z (about 10 years ago)
- Default Branch: master
- Last Pushed: 2024-01-09T14:57:21.000Z (11 months ago)
- Last Synced: 2024-11-07T07:11:56.398Z (about 1 month ago)
- Language: PHP
- Homepage:
- Size: 150 KB
- Stars: 51
- Watchers: 6
- Forks: 22
- Open Issues: 8
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE.txt
Awesome Lists containing this project
- awesome-cakephp - Version plugin - A plugin that facilitates versioned database entities. (Auditing / Logging)
README
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[](https://readthedocs.org/projects/cakephp-version/?badge=latest)
[](https://gratipay.com/~josegonzalez/)
# Version
A CakePHP 4.x plugin that facilitates versioned database entities
## Installation
Add the following lines to your application's `composer.json`:
```json
"require": {
"josegonzalez/cakephp-version": "dev-master"
}
```
followed by the command:
`composer update`
Or run the following command directly without changing your `composer.json`:
`composer require josegonzalez/cakephp-version:dev-master`
## Usage
In your app's `config/bootstrap.php` add:
```php
Plugin::load('Josegonzalez/Version', ['bootstrap' => true]);
```
## Usage
Run the following schema migration:
```sql
CREATE TABLE `version` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`version_id` int(11) DEFAULT NULL,
`model` varchar(255) NOT NULL,
`foreign_key` int(10) NOT NULL,
`field` varchar(255) NOT NULL,
`content` text NULL,
`created` datetime NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
```
> Note that the `content` field must be nullable if you want to be able to version any nullable fields in your application.
> You may optionally add a `version_id` field of type `integer` to the table which is being versioned. This will store the latest version number of a given page.
If you wish to create the table using `cakephp/migrations` then you will need to use a migration that looks something like this:
```php
table('version')
->addColumn('version_id', 'integer', ['null' => true])
->addColumn('model', 'string')
->addColumn('foreign_key', 'integer')
->addColumn('field', 'string')
->addColumn('content', 'text', ['null' => true])
->addColumn('created', 'datetime')
->create();
}
}
```
Add the following line to your entities:
```php
use \Josegonzalez\Version\Model\Behavior\Version\VersionTrait;
```
And then include the trait in the entity class:
```php
class PostEntity extends Entity {
use VersionTrait;
}
```
Attach the behavior in the models you want with:
```php
public function initialize(array $config) {
$this->addBehavior('Josegonzalez/Version.Version');
}
```
Whenever an entity is persisted - whether via insert or update - that entity is also persisted to the `version` table. You can access a given revision by executing the following code:
```php
// Will contain a generic `Entity` populated with data from the specified version.
$version = $entity->version(1);
```
You can optionally retrieve all the versions:
```php
$versions = $entity->versions();
```
### Storing Additional Meta Data
`cakephp-version` dispatches an event `Model.Version.beforeSave` which you can optionally handle to attach additional meta-data about the version.
Add the necessary additional fields to your migration, for example:
```sql
CREATE TABLE `version` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`version_id` int(11) DEFAULT NULL,
`model` varchar(255) NOT NULL,
`foreign_key` int(10) NOT NULL,
`field` varchar(255) NOT NULL,
`content` text,
`created` datetime NOT NULL,
`custom_field1` varchar(255) NOT NULL, /* column to store our metadata */
`custom_field2` varchar(255) NOT NULL, /* column to store our metadata */
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
```
Then define an event listener to handle the event and pass in additional metadata, for example:
```php
use Cake\Event\Event;
use Cake\Event\EventListenerInterface;
class VersionListener implements EventListenerInterface {
public function implementedEvents() {
return array(
'Model.Version.beforeSave' => 'insertAdditionalData',
);
}
public function insertAdditionalData(Event $event) {
return [
'custom_field1' => 'foo',
'custom_field2' => 'bar'
];
}
}
```
Your event listener can then be attached in your project, for example:
```php
use App\Event\VersionListener;
use Cake\Event\EventManager;
$VersionListener = new VersionListener();
EventManager::instance()->on($VersionListener);
```
Note that handling this event also allows you to modify/overwrite values generated by the plugin.
This can provide useful functionality, but ensure that if your event listener returns array keys called
`version_id`, `model`, `foreign_key`, `field`, `content` or `created` that this is the intended behavior.
#### Storing user_id as Meta Data
To store the `user_id` as additional meta data is easiest in combination with [Muffin/Footprint](https://github.com/UseMuffin/Footprint).
The above `insertAdditionalData()` method could then look like this:
```php
/**
* @param \Cake\Event\Event $event
*
* @return array
*/
public function insertAdditionalData(Event $event)
{
$data = [
...
];
if ($event->data('_footprint')) {
$user = $event->data('_footprint');
$data += [
'user_id' => $user->id,
];
}
return $data;
}
```
Any controller with the `FootprintAwareTrait` used will then provide the `_footprint` data into the model layer for this event callback to use.
### Bake Integration
If you load the plugin using `'bootstrap' => true`, this plugin can be used to autodetect usage via the properly named database table. To do so, simply create a table with the `version` schema above named after the table you'd like to revision plus the suffix `_versions`. For instance, to version the following table:
```sql
CREATE TABLE `posts` (
`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
`category_id` int(11) DEFAULT NULL,
`user_id` int(11) DEFAULT NULL,
`status` varchar(255) NOT NULL DEFAULT 'published',
`visibility` varchar(255) NOT NULL DEFAULT 'public',
`title` varchar(255) NOT NULL DEFAULT '',
`route` varchar(255) DEFAULT NULL,
`content` text,
`published_date` datetime DEFAULT NULL,
`created` datetime NOT NULL,
`modified` datetime NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
```
Create the following table:
```sql
CREATE TABLE `posts_versions` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`version_id` int(11) NOT NULL,
`model` varchar(255) NOT NULL,
`foreign_key` int(11) NOT NULL,
`field` varchar(255) NOT NULL,
`content` text,
`created` datetime NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
```
You can create a migration for this with the following bake command:
```shell
bin/cake bake migration create_posts_versions version_id:integer model foreign_key:integer field content:text created
```
> You'll also want to set the `content` field in this migration to nullable, otherwise you won't be able to version fields that can be nulled.
To track the current version in the `posts` table, you can create a migration to add the `version_id` field to the table:
```shell
bin/cake bake migration add_version_id_to_posts version_id:integer
```
### Configuration
There are five behavior configurations that may be used:
- `versionTable`: (Default: `version`) The name of the table to be used to store versioned data. It may be useful to use a different table when versioning multiple types of entities.
- `versionField`: (Default: `version_id`) The name of the field in the versioned table that will store the current version. If missing, the plugin will continue to work as normal.
- `additionalVersionFields`: (Default `['created']`) The additional or custom fields of the versioned table to be exposed as well. By default prefixed with `version_`, e.g. `'version_user_id'` for `'user_id'`.
- `referenceName`: (Default: db table name) Discriminator used to identify records in the version table.
- `onlyDirty`: (Default: false) Set to true to version only dirty properties.