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Extract VirtualColumn package

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This commit is contained in:
Samuel Štancl 2020-07-06 14:44:49 +02:00
parent b362c16f89
commit f483d0b8cf
3 changed files with 6 additions and 164 deletions
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123
src/Database/Concerns/HasDataColumn.php
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@ -4,127 +4,12 @@ declare(strict_types=1);
namespace Stancl\Tenancy\Database\Concerns;
use Stancl\VirtualColumn\VirtualColumn;
/**
* This trait lets you add a "data" column functionality to any Eloquent model.
* It serializes attributes which don't exist as columns on the model's table
* into a JSON column named data (customizable by overriding getDataColumn).
* Extends VirtualColumn for backwards compatibility. This trait will be removed in v4.
*/
trait HasDataColumn
{
public static $priorityListeners = [];
/**
* We need this property, because both created & saved event listeners
* decode the data (to take precedence before other created & saved)
* listeners, but we don't want the dadta to be decoded twice.
*
* @var string
*/
public $dataEncodingStatus = 'decoded';
public static function bootHasDataColumn()
{
$encode = function (self $model) {
if ($model->dataEncodingStatus === 'encoded') {
return;
}
foreach ($model->getAttributes() as $key => $value) {
if (! in_array($key, static::getCustomColumns())) {
$current = $model->getAttribute(static::getDataColumn()) ?? [];
$model->setAttribute(static::getDataColumn(), array_merge($current, [
$key => $value,
]));
unset($model->attributes[$key]);
}
}
$model->dataEncodingStatus = 'encoded';
};
$decode = function (self $model) {
if ($model->dataEncodingStatus === 'decoded') {
return;
}
foreach ($model->getAttribute(static::getDataColumn()) ?? [] as $key => $value) {
$model->setAttribute($key, $value);
}
$model->setAttribute(static::getDataColumn(), null);
$model->dataEncodingStatus = 'decoded';
};
static::registerPriorityListener('retrieved', function ($model) use ($decode) {
// We always decode after model retrieval.
$model->dataEncodingStatus = 'encoded';
$decode($model);
});
static::registerPriorityListener('saving', $encode);
static::registerPriorityListener('creating', $encode);
static::registerPriorityListener('updating', $encode);
static::registerPriorityListener('saved', $decode);
static::registerPriorityListener('created', $decode);
static::registerPriorityListener('updated', $decode);
}
protected function fireModelEvent($event, $halt = true)
{
$this->runPriorityListeners($event, $halt);
return parent::fireModelEvent($event, $halt);
}
public function runPriorityListeners($event, $halt = true)
{
$listeners = static::$priorityListeners[$event] ?? [];
if (! $event) {
return;
}
foreach ($listeners as $listener) {
if (is_string($listener)) {
$listener = app($listener);
$handle = [$listener, 'handle'];
} else {
$handle = $listener;
}
$handle($this);
}
}
public static function registerPriorityListener(string $event, callable $callback)
{
static::$priorityListeners[$event][] = $callback;
}
public function getCasts()
{
return array_merge(parent::getCasts(), [
static::getDataColumn() => 'array',
]);
}
/**
* Get the name of the column that stores additional data.
*/
public static function getDataColumn(): string
{
return 'data';
}
public static function getCustomColumns(): array
{
return [
'id',
];
}
use VirtualColumn;
}