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<?php namespace Sofa\Revisionable\Laravel; |
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use App; |
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use DateTime; |
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/** |
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* @property int revisionsCount |
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* @property array relations |
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* @property array original |
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* @property array attributes |
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* @property array attributes |
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* @property array revisionableConnection |
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* |
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* @method void created(\Closure|string $callback) |
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* @method void updated(\Closure|string $callback) |
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* @method void deleted(\Closure|string $callback) |
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* @method void restored(\Closure|string $callback) |
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* @method string getTable() |
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* @method void load() |
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* @method mixed getRelation($relation) |
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* @method \Illuminate\Database\Eloquent\Relations\HasOne hasOne($related, $foreignKey = null, $localKey = null) |
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* @method \Illuminate\Database\Eloquent\Relations\HasMany hasMany($related, $foreignKey = null, $localKey = null) |
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*/ |
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trait RevisionableTrait |
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{ |
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/** |
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* Revisionable Logger instance. |
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* |
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* @var \Sofa\Revisionable\Logger |
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*/ |
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protected static $revisionableLogger; |
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/** |
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* Revisioning switch. |
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* |
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* @var boolean |
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*/ |
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protected $revisioned = true; |
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/** |
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* Boot revisionable trait for the model. |
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* |
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* @return void |
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*/ |
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public static function bootRevisionableTrait() |
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{ |
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static::bootLogger(); |
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static::registerListeners(); |
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} |
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/** |
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* Register event listeners. |
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* |
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* @return void |
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*/ |
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public static function registerListeners() |
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{ |
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foreach (static::getRevisionableEvents() as $event) { |
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static::{"register{$event}Listener"}(); |
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} |
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} |
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/** |
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* Register listener for created event. |
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* |
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* @return void |
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*/ |
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protected static function registerCreatedListener() |
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{ |
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static::created('Sofa\Revisionable\Listener@onCreated'); |
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} |
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/** |
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* Register listener for updated event. |
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* |
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* @return void |
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*/ |
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protected static function registerUpdatedListener() |
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{ |
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static::updated('Sofa\Revisionable\Listener@onUpdated'); |
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} |
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/** |
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* Register listener for deleted event. |
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* |
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* @return void |
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*/ |
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protected static function registerDeletedListener() |
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{ |
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static::deleted('Sofa\Revisionable\Listener@onDeleted'); |
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} |
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/** |
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* Register listener for restored event. |
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* |
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* @return void |
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*/ |
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protected static function registerRestoredListener() |
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{ |
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if (method_exists(get_called_class(), 'restored')) { |
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static::restored('Sofa\Revisionable\Listener@onRestored'); |
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} |
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} |
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/** |
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* Boot Revisionable Logger. |
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* |
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* @return void |
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*/ |
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public static function bootLogger() |
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{ |
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if (!static::$revisionableLogger) { |
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static::setRevisionableLogger(App::make('revisionable.logger')); |
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} |
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} |
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/** |
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* Set logger instance. |
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* |
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* @param mixed $logger |
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*/ |
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public static function setRevisionableLogger($logger) |
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{ |
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static::$revisionableLogger = $logger; |
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} |
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/** |
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* Get logger instance. |
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* |
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* @return \Sofa\Revisionable\Logger |
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*/ |
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public static function getRevisionableLogger() |
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{ |
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return static::$revisionableLogger; |
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} |
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/** |
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* Get the connection for revision logs. |
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* |
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* @return \Illuminate\Database\ConnectionInterface |
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*/ |
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public function getRevisionableConnection() |
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{ |
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$connection = (isset($this->revisionableConnection)) ? $this->revisionableConnection : null; |
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return static::resolveConnection($connection); |
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} |
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/** |
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* Get an array of updated revisionable attributes. |
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* |
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* @return array |
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*/ |
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public function getDiff() |
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{ |
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$old = $this->getOldAttributes(); |
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$new = $this->getNewAttributes(); |
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return array_diff_assoc($new, $old); |
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} |
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/** |
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* Get an array of original revisionable attributes. |
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* |
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* @return array |
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*/ |
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public function getOldAttributes() |
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{ |
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$attributes = $this->getRevisionableItems($this->original); |
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return $this->prepareAttributes($attributes); |
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} |
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/** |
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* Get an array of current revisionable attributes. |
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* |
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* @return array |
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*/ |
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public function getNewAttributes() |
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{ |
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$attributes = $this->getRevisionableItems($this->attributes); |
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return $this->prepareAttributes($attributes); |
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} |
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/** |
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* Stringify revisionable attributes. |
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* |
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* @param array $attributes |
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* @return array |
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*/ |
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protected function prepareAttributes(array $attributes) |
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{ |
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return array_map(function ($attribute) { |
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return ($attribute instanceof DateTime) |
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? $this->fromDateTime($attribute) |
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: (string) $attribute; |
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}, $attributes); |
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} |
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/** |
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* Get an array of revisionable attributes. |
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* |
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* @param array $values |
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* @return array |
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*/ |
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public function getRevisionableItems(array $values) |
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{ |
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if (count($this->getRevisionable()) > 0) { |
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return array_intersect_key($values, array_flip($this->getRevisionable())); |
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} |
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return array_diff_key($values, array_flip($this->getNonRevisionable())); |
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} |
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/** |
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* Events being tracked. |
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* |
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* @var array |
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*/ |
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protected static function getRevisionableEvents() |
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{ |
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return (isset(static::$revisionableEvents)) |
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? (array) static::$revisionableEvents |
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: ['Created', 'Updated', 'Deleted', 'Restored']; |
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} |
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/** |
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* Attributes being revisioned. |
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* |
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* @var array |
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*/ |
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public function getRevisionable() |
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{ |
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return (isset($this->revisionable)) |
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? (array) $this->revisionable |
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: []; |
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} |
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/** |
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* Attributes hidden from revisioning if revisionable are not provided. |
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* |
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* @var array |
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*/ |
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public function getNonRevisionable() |
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{ |
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return (isset($this->nonRevisionable)) |
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? (array) $this->nonRevisionable |
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: ['created_at', 'updated_at', 'deleted_at']; |
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} |
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/** |
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* Determine if model should be revisioned. |
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* |
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* @return boolean |
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*/ |
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public function isRevisioned() |
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{ |
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return $this->revisioned; |
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} |
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/** |
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* Disable revisioning for current instance. |
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* |
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* @return void |
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*/ |
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public function disableRevisioning() |
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{ |
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$this->revisioned = false; |
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} |
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/** |
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* Enable revisioning for current instance. |
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* |
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* @return void |
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*/ |
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public function enableRevisioning() |
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{ |
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$this->revisioned = true; |
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} |
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/** |
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* Model has many Revision |
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* |
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* @return \Illuminate\Database\Eloquent\Relations\HasMany |
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*/ |
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public function revisions() |
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{ |
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return $this->hasMany('Sofa\Revisionable\Laravel\Revision', 'row_id') |
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->latest() |
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->where('table_name', $this->getTable()); |
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} |
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/** |
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* Accessor for revisions property |
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* |
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* @return \Illuminate\Database\Eloquent\Collection |
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*/ |
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public function getRevisionsAttribute() |
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{ |
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$this->loadRelationIfNecessary('revisions'); |
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$collection = $this->getRelation('revisions'); |
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$presenter = $this->getRevisionPresenter(); |
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$default = $this->getDefaultRevisionPresenter(); |
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if (is_subclass_of($presenter, $default) || $presenter == $default) { |
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return $presenter::make($collection, $this); |
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} |
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return $collection; |
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} |
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/** |
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* Get record version at given timestamp. |
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* |
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* @param \Carbon\Carbon|string $timestamp |
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* |
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* @return \Sofa\Revisionable\Laravel\Revision|\Sofa\Revisionable\laravel\Presenter|null |
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*/ |
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public function revisionSnapshot($timestamp) |
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{ |
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$revision = $this->revisions()->where('created_at', '<=', $timestamp)->first(); |
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return ($revision) ? $this->wrapRevision($revision) : null; |
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} |
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/** |
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* Get record version at given step in history. |
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* |
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* @param integer $step |
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* |
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* @return \Sofa\Revisionable\Laravel\Revision|\Sofa\Revisionable\laravel\Presenter|null |
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*/ |
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public function revisionStep($step) |
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{ |
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$revision = $this->revisions()->skip($step)->first(); |
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return ($revision) ? $this->wrapRevision($revision) : null; |
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} |
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/** |
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* Wrap revision model with the presenter if provided. |
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348
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* |
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* @param \Sofa\Revisionable\Laravel\Revision $revision |
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* @return \Sofa\Revisionable\Laravel\Presenter|\Sofa\Revisionable\Laravel\Revision |
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351
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*/ |
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352
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public function wrapRevision(Revision $revision) |
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353
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{ |
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$presenter = $this->getRevisionPresenter(); |
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356
|
|
|
return (is_subclass_of($presenter, $this->getDefaultRevisionPresenter()) |
|
357
|
|
|
|| $presenter == $this->getDefaultRevisionPresenter()) |
|
358
|
|
|
? $presenter::make($revision, $this) |
|
359
|
|
|
: $revision; |
|
360
|
|
|
} |
|
361
|
|
|
|
|
362
|
|
|
/** |
|
363
|
|
|
* Load revisions relation if not loaded. |
|
364
|
|
|
* |
|
365
|
|
|
* @param string $relation |
|
366
|
|
|
* |
|
367
|
|
|
* @return void |
|
368
|
|
|
*/ |
|
369
|
|
|
protected function loadRelationIfNecessary($relation) |
|
370
|
|
|
{ |
|
371
|
|
|
if (!array_key_exists($relation, $this->relations)) { |
|
372
|
|
|
$this->load($relation); |
|
|
|
|
|
|
373
|
|
|
} |
|
374
|
|
|
} |
|
375
|
|
|
|
|
376
|
|
|
/** |
|
377
|
|
|
* Revisionable has one Revision count. |
|
378
|
|
|
* |
|
379
|
|
|
* @return \Illuminate\Database\Eloquent\Relations\HasOne |
|
380
|
|
|
*/ |
|
381
|
|
|
public function revisionsCount() |
|
382
|
|
|
{ |
|
383
|
|
|
return $this->hasOne('Sofa\Revisionable\Laravel\Revision', 'row_id') |
|
384
|
|
|
->where('table_name', $this->getTable()) |
|
385
|
|
|
->selectRaw('count(*) as aggregate, row_id') |
|
386
|
|
|
->groupBy('row_id'); |
|
387
|
|
|
} |
|
388
|
|
|
|
|
389
|
|
|
/** |
|
390
|
|
|
* Convenient accessor for revisionsCount relation. |
|
391
|
|
|
* |
|
392
|
|
|
* @return integer |
|
393
|
|
|
*/ |
|
394
|
|
|
public function getRevisionsCountAttribute() |
|
395
|
|
|
{ |
|
396
|
|
|
if (!array_key_exists('revisionsCount', $this->relations)) { |
|
397
|
|
|
$this->load('revisionsCount'); |
|
|
|
|
|
|
398
|
|
|
} |
|
399
|
|
|
|
|
400
|
|
|
$relation = $this->getRelation('revisionsCount'); |
|
401
|
|
|
|
|
402
|
|
|
return ($relation) ? (int) $relation->aggregate : 0; |
|
403
|
|
|
} |
|
404
|
|
|
|
|
405
|
|
|
/** |
|
406
|
|
|
* Determine if model has any revisions history. |
|
407
|
|
|
* |
|
408
|
|
|
* @return boolean |
|
409
|
|
|
*/ |
|
410
|
|
|
public function hasRevisions() |
|
411
|
|
|
{ |
|
412
|
|
|
return (bool) $this->revisionsCount; |
|
413
|
|
|
} |
|
414
|
|
|
|
|
415
|
|
|
/** |
|
416
|
|
|
* Determine if model has any revisions history. |
|
417
|
|
|
* |
|
418
|
|
|
* @return boolean |
|
419
|
|
|
*/ |
|
420
|
|
|
public function hasHistory() |
|
421
|
|
|
{ |
|
422
|
|
|
return $this->hasRevisions(); |
|
423
|
|
|
} |
|
424
|
|
|
|
|
425
|
|
|
/** |
|
426
|
|
|
* User has one oldestRevision |
|
427
|
|
|
* |
|
428
|
|
|
* @return \Illuminate\Database\Eloquent\Relations\HasOne |
|
429
|
|
|
*/ |
|
430
|
|
|
public function oldestRevision() |
|
431
|
|
|
{ |
|
432
|
|
|
return $this->hasOne('Sofa\Revisionable\Laravel\Revision', 'row_id') |
|
433
|
|
|
->where('table_name', $this->getTable()) |
|
434
|
|
|
->oldest(); |
|
435
|
|
|
} |
|
436
|
|
|
|
|
437
|
|
|
/** |
|
438
|
|
|
* Accessor for oldestRevision property |
|
439
|
|
|
* |
|
440
|
|
|
* @return \Sofa\Revisionable\Laravel\Revision|\Sofa\Revisionable\Laravel\Presenter|null |
|
441
|
|
|
*/ |
|
442
|
|
View Code Duplication |
public function getOldestRevisionAttribute() |
|
|
|
|
|
|
443
|
|
|
{ |
|
444
|
|
|
$this->loadRelationIfNecessary('oldestRevision'); |
|
445
|
|
|
|
|
446
|
|
|
$revision = $this->getRelation('oldestRevision'); |
|
447
|
|
|
|
|
448
|
|
|
return ($revision) ? $this->wrapRevision($revision) : null; |
|
449
|
|
|
} |
|
450
|
|
|
|
|
451
|
|
|
/** |
|
452
|
|
|
* User has one latestRevision |
|
453
|
|
|
* |
|
454
|
|
|
* @return \Illuminate\Database\Eloquent\Relations\HasOne |
|
455
|
|
|
*/ |
|
456
|
|
|
public function latestRevision() |
|
457
|
|
|
{ |
|
458
|
|
|
return $this->hasOne('Sofa\Revisionable\Laravel\Revision', 'row_id') |
|
459
|
|
|
->where('table_name', $this->getTable()) |
|
460
|
|
|
->latest(); |
|
461
|
|
|
} |
|
462
|
|
|
|
|
463
|
|
|
/** |
|
464
|
|
|
* Accessor for latestRevision property |
|
465
|
|
|
* |
|
466
|
|
|
* @return \Sofa\Revisionable\Laravel\Revision|\Sofa\Revisionable\Laravel\Presenter|null |
|
467
|
|
|
*/ |
|
468
|
|
View Code Duplication |
public function getLatestRevisionAttribute() |
|
|
|
|
|
|
469
|
|
|
{ |
|
470
|
|
|
$this->loadRelationIfNecessary('latestRevision'); |
|
471
|
|
|
|
|
472
|
|
|
$revision = $this->getRelation('latestRevision'); |
|
473
|
|
|
|
|
474
|
|
|
return ($revision) ? $this->wrapRevision($revision) : null; |
|
475
|
|
|
} |
|
476
|
|
|
|
|
477
|
|
|
/** |
|
478
|
|
|
* Set revision presenter class or true for default. |
|
479
|
|
|
* |
|
480
|
|
|
* @param string|true $class |
|
481
|
|
|
*/ |
|
482
|
|
|
public function setRevisionPresenter($class) |
|
483
|
|
|
{ |
|
484
|
|
|
$this->revisionPresenter = $class; |
|
|
|
|
|
|
485
|
|
|
} |
|
486
|
|
|
|
|
487
|
|
|
/** |
|
488
|
|
|
* Get revision presenter class for the model. |
|
489
|
|
|
* |
|
490
|
|
|
* @return string|null |
|
491
|
|
|
*/ |
|
492
|
|
|
public function getRevisionPresenter() |
|
493
|
|
|
{ |
|
494
|
|
|
if (!isset($this->revisionPresenter)) { |
|
495
|
|
|
return null; |
|
496
|
|
|
} |
|
497
|
|
|
|
|
498
|
|
|
// Use default or custom presenter class if provided. |
|
499
|
|
|
return ($this->revisionPresenter === true) |
|
500
|
|
|
? $this->getDefaultRevisionPresenter() |
|
501
|
|
|
: $this->revisionPresenter; |
|
502
|
|
|
} |
|
503
|
|
|
|
|
504
|
|
|
/** |
|
505
|
|
|
* Get default revision presenter from the package. |
|
506
|
|
|
* |
|
507
|
|
|
* @return string |
|
508
|
|
|
*/ |
|
509
|
|
|
public function getDefaultRevisionPresenter() |
|
510
|
|
|
{ |
|
511
|
|
|
return 'Sofa\Revisionable\Laravel\Presenter'; |
|
512
|
|
|
} |
|
513
|
|
|
} |
|
514
|
|
|
|
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.