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<?php |
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namespace Encore\Admin\Grid; |
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use Encore\Admin\Middleware\Pjax; |
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use Illuminate\Database\Eloquent\Model as EloquentModel; |
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use Illuminate\Database\Eloquent\Relations\BelongsTo; |
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use Illuminate\Database\Eloquent\Relations\HasOne; |
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use Illuminate\Database\Eloquent\Relations\Relation; |
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use Illuminate\Pagination\LengthAwarePaginator; |
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use Illuminate\Support\Collection; |
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use Illuminate\Support\Facades\Input; |
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use Illuminate\Support\Facades\Request; |
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class Model |
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{ |
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/** |
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* Eloquent model instance of the grid model. |
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* |
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* @var EloquentModel |
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*/ |
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protected $model; |
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/** |
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* Array of queries of the eloquent model. |
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* |
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* @var \Illuminate\Support\Collection |
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*/ |
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protected $queries; |
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/** |
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* Sort parameters of the model. |
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* |
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* @var array |
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*/ |
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protected $sort; |
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/** |
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* @var array |
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*/ |
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protected $data = []; |
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/* |
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* 20 items per page as default. |
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* |
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* @var int |
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*/ |
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protected $perPage = 20; |
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/** |
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* If the model use pagination. |
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* |
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* @var bool |
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*/ |
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protected $usePaginate = true; |
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/** |
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* The query string variable used to store the per-page. |
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* |
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* @var string |
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*/ |
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protected $perPageName = 'per_page'; |
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/** |
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* The query string variable used to store the sort. |
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* |
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* @var string |
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*/ |
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protected $sortName = '_sort'; |
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/** |
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* Collection callback. |
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* |
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* @var \Closure |
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*/ |
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protected $collectionCallback; |
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/** |
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* Create a new grid model instance. |
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* |
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* @param EloquentModel $model |
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*/ |
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public function __construct(EloquentModel $model) |
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{ |
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$this->model = $model; |
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$this->queries = collect(); |
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// static::doNotSnakeAttributes($this->model); |
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} |
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/** |
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* Don't snake case attributes. |
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* |
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* @param EloquentModel $model |
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* |
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* @return void |
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*/ |
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protected static function doNotSnakeAttributes(EloquentModel $model) |
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{ |
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$class = get_class($model); |
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$class::$snakeAttributes = false; |
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} |
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/** |
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* Get the eloquent model of the grid model. |
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* |
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* @return EloquentModel |
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*/ |
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public function eloquent() |
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{ |
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return $this->model; |
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} |
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/** |
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* Enable or disable pagination. |
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* |
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* @param bool $use |
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*/ |
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public function usePaginate($use = true) |
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{ |
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$this->usePaginate = $use; |
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} |
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/** |
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* Get the query string variable used to store the per-page. |
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* |
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* @return string |
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*/ |
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public function getPerPageName() |
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{ |
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return $this->perPageName; |
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} |
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/** |
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* Set the query string variable used to store the per-page. |
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* |
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* @param string $name |
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* |
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* @return $this |
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*/ |
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public function setPerPageName($name) |
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{ |
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$this->perPageName = $name; |
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return $this; |
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} |
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/** |
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* Get the query string variable used to store the sort. |
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* |
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* @return string |
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*/ |
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public function getSortName() |
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{ |
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return $this->sortName; |
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} |
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/** |
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* Set the query string variable used to store the sort. |
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* |
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* @param string $name |
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* |
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* @return $this |
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*/ |
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public function setSortName($name) |
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{ |
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$this->sortName = $name; |
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return $this; |
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} |
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/** |
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* Set collection callback. |
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* |
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* @param \Closure $callback |
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* |
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* @return $this |
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*/ |
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public function collection(\Closure $callback = null) |
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{ |
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$this->collectionCallback = $callback; |
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return $this; |
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} |
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/** |
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* Build. |
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* |
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* @param bool $toArray |
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* |
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* @return array|Collection|mixed |
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*/ |
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public function buildData($toArray = true) |
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{ |
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if (empty($this->data)) { |
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$collection = $this->get(); |
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if ($this->collectionCallback) { |
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$collection = call_user_func($this->collectionCallback, $collection); |
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} |
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if ($toArray) { |
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$this->data = $collection->toArray(); |
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} else { |
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$this->data = $collection; |
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} |
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} |
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return $this->data; |
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} |
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/** |
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* @param callable $callback |
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* @param int $count |
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* |
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* @return bool |
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*/ |
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public function chunk($callback, $count = 100) |
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{ |
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if ($this->usePaginate) { |
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return $this->buildData(false)->chunk($count)->each($callback); |
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} |
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$this->setSort(); |
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$this->queries->reject(function ($query) { |
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return $query['method'] == 'paginate'; |
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})->each(function ($query) { |
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$this->model = $this->model->{$query['method']}(...$query['arguments']); |
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}); |
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return $this->model->chunk($count, $callback); |
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} |
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/** |
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* Add conditions to grid model. |
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* |
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* @param array $conditions |
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* |
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* @return $this |
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*/ |
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public function addConditions(array $conditions) |
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{ |
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foreach ($conditions as $condition) { |
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call_user_func_array([$this, key($condition)], current($condition)); |
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} |
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return $this; |
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} |
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/** |
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* Get table of the model. |
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* |
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* @return string |
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*/ |
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public function getTable() |
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{ |
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return $this->model->getTable(); |
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} |
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/** |
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* @throws \Exception |
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* |
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* @return Collection |
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*/ |
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protected function get() |
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{ |
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if ($this->model instanceof LengthAwarePaginator) { |
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return $this->model; |
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} |
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$this->setSort(); |
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$this->setPaginate(); |
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$this->queries->unique()->each(function ($query) { |
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$this->model = call_user_func_array([$this->model, $query['method']], $query['arguments']); |
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}); |
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if ($this->model instanceof Collection) { |
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return $this->model; |
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} |
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if ($this->model instanceof LengthAwarePaginator) { |
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$this->handleInvalidPage($this->model); |
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return $this->model->getCollection(); |
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} |
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throw new \Exception('Grid query error'); |
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} |
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/** |
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* If current page is greater than last page, then redirect to last page. |
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* |
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* @param LengthAwarePaginator $paginator |
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* |
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* @return void |
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*/ |
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protected function handleInvalidPage(LengthAwarePaginator $paginator) |
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{ |
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if ($paginator->lastPage() && $paginator->currentPage() > $paginator->lastPage()) { |
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$lastPageUrl = Request::fullUrlWithQuery([ |
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$paginator->getPageName() => $paginator->lastPage(), |
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]); |
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Pjax::respond(redirect($lastPageUrl)); |
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} |
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} |
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/** |
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* Set the grid paginate. |
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* |
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* @return void |
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*/ |
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protected function setPaginate() |
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{ |
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$paginate = $this->findQueryByMethod('paginate'); |
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$this->queries = $this->queries->reject(function ($query) { |
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return $query['method'] == 'paginate'; |
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}); |
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if (!$this->usePaginate) { |
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$query = [ |
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'method' => 'get', |
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'arguments' => [], |
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]; |
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} else { |
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$query = [ |
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'method' => 'paginate', |
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'arguments' => $this->resolvePerPage($paginate), |
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]; |
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} |
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$this->queries->push($query); |
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} |
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/** |
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* Resolve perPage for pagination. |
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* |
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* @param array|null $paginate |
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* |
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* @return array |
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*/ |
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protected function resolvePerPage($paginate) |
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{ |
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if ($perPage = app('request')->input($this->perPageName)) { |
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if (is_array($paginate)) { |
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$paginate['arguments'][0] = (int) $perPage; |
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return $paginate['arguments']; |
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} |
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$this->perPage = (int) $perPage; |
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} |
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if (isset($paginate['arguments'][0])) { |
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return $paginate['arguments']; |
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} |
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return [$this->perPage]; |
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} |
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/** |
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* Find query by method name. |
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* |
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* @param $method |
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* |
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* @return static |
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*/ |
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protected function findQueryByMethod($method) |
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{ |
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return $this->queries->first(function ($query) use ($method) { |
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return $query['method'] == $method; |
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}); |
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} |
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/** |
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* Set the grid sort. |
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* |
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* @return void |
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*/ |
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protected function setSort() |
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{ |
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$this->sort = Input::get($this->sortName, []); |
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if (!is_array($this->sort)) { |
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return; |
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} |
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if (empty($this->sort['column']) || empty($this->sort['type'])) { |
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return; |
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} |
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if (str_contains($this->sort['column'], '.')) { |
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$this->setRelationSort($this->sort['column']); |
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} else { |
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$this->resetOrderBy(); |
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|
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$this->queries->push([ |
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'method' => 'orderBy', |
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'arguments' => [$this->sort['column'], $this->sort['type']], |
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]); |
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} |
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} |
407
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|
408
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/** |
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* Set relation sort. |
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* |
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* @param string $column |
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* |
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* @return void |
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*/ |
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protected function setRelationSort($column) |
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{ |
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|
|
|
list($relationName, $relationColumn) = explode('.', $column); |
418
|
|
|
|
419
|
|
|
if ($this->queries->contains(function ($query) use ($relationName) { |
420
|
|
|
return $query['method'] == 'with' && in_array($relationName, $query['arguments']); |
421
|
|
|
})) { |
422
|
|
|
$relation = $this->model->$relationName(); |
423
|
|
|
|
424
|
|
|
$this->queries->push([ |
425
|
|
|
'method' => 'join', |
426
|
|
|
'arguments' => $this->joinParameters($relation), |
427
|
|
|
]); |
428
|
|
|
|
429
|
|
|
$this->resetOrderBy(); |
430
|
|
|
|
431
|
|
|
$this->queries->push([ |
432
|
|
|
'method' => 'orderBy', |
433
|
|
|
'arguments' => [ |
434
|
|
|
$relation->getRelated()->getTable().'.'.$relationColumn, |
435
|
|
|
$this->sort['type'], |
436
|
|
|
], |
437
|
|
|
]); |
438
|
|
|
} |
439
|
|
|
} |
440
|
|
|
|
441
|
|
|
/** |
442
|
|
|
* Reset orderBy query. |
443
|
|
|
* |
444
|
|
|
* @return void |
445
|
|
|
*/ |
446
|
|
|
public function resetOrderBy() |
447
|
|
|
{ |
448
|
|
|
$this->queries = $this->queries->reject(function ($query) { |
449
|
|
|
return $query['method'] == 'orderBy' || $query['method'] == 'orderByDesc'; |
450
|
|
|
}); |
451
|
|
|
} |
452
|
|
|
|
453
|
|
|
/** |
454
|
|
|
* Build join parameters for related model. |
455
|
|
|
* |
456
|
|
|
* `HasOne` and `BelongsTo` relation has different join parameters. |
457
|
|
|
* |
458
|
|
|
* @param Relation $relation |
459
|
|
|
* |
460
|
|
|
* @throws \Exception |
461
|
|
|
* |
462
|
|
|
* @return array |
463
|
|
|
*/ |
464
|
|
|
protected function joinParameters(Relation $relation) |
465
|
|
|
{ |
466
|
|
|
$relatedTable = $relation->getRelated()->getTable(); |
467
|
|
|
|
468
|
|
|
if ($relation instanceof BelongsTo) { |
469
|
|
|
return [ |
470
|
|
|
$relatedTable, |
471
|
|
|
$relation->getForeignKey(), |
472
|
|
|
'=', |
473
|
|
|
$relatedTable.'.'.$relation->getRelated()->getKeyName(), |
474
|
|
|
]; |
475
|
|
|
} |
476
|
|
|
|
477
|
|
|
if ($relation instanceof HasOne) { |
478
|
|
|
return [ |
479
|
|
|
$relatedTable, |
480
|
|
|
$relation->getQualifiedParentKeyName(), |
481
|
|
|
'=', |
482
|
|
|
$relation->getQualifiedForeignKeyName(), |
483
|
|
|
]; |
484
|
|
|
} |
485
|
|
|
|
486
|
|
|
throw new \Exception('Related sortable only support `HasOne` and `BelongsTo` relation.'); |
487
|
|
|
} |
488
|
|
|
|
489
|
|
|
/** |
490
|
|
|
* @param string $method |
491
|
|
|
* @param array $arguments |
492
|
|
|
* |
493
|
|
|
* @return $this |
494
|
|
|
*/ |
495
|
|
|
public function __call($method, $arguments) |
496
|
|
|
{ |
497
|
|
|
$this->queries->push([ |
498
|
|
|
'method' => $method, |
499
|
|
|
'arguments' => $arguments, |
500
|
|
|
]); |
501
|
|
|
|
502
|
|
|
return $this; |
503
|
|
|
} |
504
|
|
|
|
505
|
|
|
/** |
506
|
|
|
* @param $key |
507
|
|
|
* |
508
|
|
|
* @return mixed |
509
|
|
|
*/ |
510
|
|
|
public function __get($key) |
511
|
|
|
{ |
512
|
|
|
$data = $this->buildData(); |
513
|
|
|
|
514
|
|
|
if (array_key_exists($key, $data)) { |
515
|
|
|
return $data[$key]; |
516
|
|
|
} |
517
|
|
|
} |
518
|
|
|
} |
519
|
|
|
|
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..