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<?php |
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namespace LaravelFlare\Flare\Traits\ModelAdmin; |
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trait ModelQuerying |
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{ |
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/** |
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* Query |
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* |
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* @var string |
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*/ |
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public $query; |
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/** |
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* Allows filtering of the default query, for instance:. |
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* |
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* $queryFilter = [ |
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* 'whereNotNull' => ['parent_id'], |
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* 'where' => ['name', 'John'], |
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* ] |
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* |
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* Would result in an Eloquent query with the following scope: |
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* Model::whereNotNull('parent_id')->where('name', 'John')->get(); |
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* |
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* Note: This queryFilter is not used for custom filters and |
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* can also be overridden by setQueryFilter(); |
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* |
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* @var array |
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*/ |
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protected $queryFilter = []; |
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/** |
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* The number of models to return for pagination. |
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* |
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* @var int |
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*/ |
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protected $perPage = 15; |
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/** |
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* Order By - Column/Attribute to OrderBy. |
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* |
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* Primary Key of Model by default |
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* |
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* @var string |
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*/ |
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protected $orderBy; |
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/** |
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* Sort By - Either Desc or Asc. |
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* |
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* @var string |
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*/ |
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protected $sortBy; |
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/** |
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* Finds an existing Model entry and sets it to the current model. |
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* |
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* @param int $modelitemId |
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* |
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* @return |
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*/ |
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public function find($modelitemId) |
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{ |
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$this->model = $this->model->findOrFail($modelitemId); |
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return $this->model; |
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} |
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/** |
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* Returns Model Items, either all() or paginated(). |
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* |
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* Filtered by any defined query filters ($queryFilter) |
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* Ordered by Managed Model orderBy and sortBy methods |
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* |
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* @return |
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*/ |
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public function items() |
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{ |
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$this->query = $this->model->newQuery(); |
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return $this->query(); |
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} |
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/** |
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* Returns All Model Items, either all() or paginated(). |
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* |
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* Filtered by any defined query filters ($queryFilter) |
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* Ordered by Managed Model orderBy and sortBy methods |
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* |
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* @return |
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*/ |
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public function allItems() |
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{ |
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if (!$this->hasSoftDeleting()) { |
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throw new \Exception('Model does not have Soft Deleting'); |
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} |
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$this->query = $this->model->newQuery()->withTrashed(); |
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return $this->query(); |
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} |
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/** |
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* Returns Model Items, either all() or paginated(). |
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* |
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* Filtered by any defined query filters ($queryFilter) |
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* Ordered by Managed Model orderBy and sortBy methods |
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* |
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* @return |
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*/ |
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public function onlyTrashedItems() |
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{ |
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if (!$this->hasSoftDeleting()) { |
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throw new \Exception('Model does not have Soft Deleting'); |
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} |
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$this->query = $this->model->newQuery()->onlyTrashed(); |
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return $this->query(); |
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} |
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/** |
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* Performs the Model Query |
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* |
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* @return \Illuminate\Database\Eloquent\Collection |
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*/ |
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private function query() |
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{ |
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$this->applyQueryFilters(); |
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if ($this->orderBy()) { |
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$this->query = $this->query->orderBy( |
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$this->orderBy(), |
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$this->sortBy() |
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); |
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} |
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if ($this->perPage > 0) { |
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return $this->query->paginate($this->perPage); |
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} |
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return $this->query->get(); |
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} |
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/** |
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* Return Totals of All, With Trashed and Only Trashed |
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* |
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* @return array |
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*/ |
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public function totals() |
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{ |
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if ($this->hasSoftDeleting()) { |
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return [ |
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'all' => $this->model->count(), |
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'with_trashed' => $this->model->withTrashed()->count(), |
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'only_trashed' => $this->model->onlyTrashed()->count(), |
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]; |
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} |
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return ['all' => $this->model->count()]; |
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} |
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/** |
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* Return Managed Model OrderBy. |
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* |
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* Primary key is default. |
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* |
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* @return string |
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*/ |
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public function orderBy() |
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{ |
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if (\Request::input('order')) { |
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return \Request::input('order'); |
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} |
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if ($this->orderBy) { |
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return $this->orderBy; |
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} |
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} |
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/** |
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* Return Managed Model SortBy (Asc or Desc). |
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* |
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* Descending is default. |
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* |
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* @return string |
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*/ |
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public function sortBy() |
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{ |
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if (\Request::input('sort')) { |
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return \Request::input('sort'); |
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} |
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if ($this->sortBy == 'asc') { |
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return 'asc'; |
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} |
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return 'desc'; |
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} |
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/** |
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* Get the number of models to return per page. |
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* |
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* @return int |
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*/ |
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public function getPerPage() |
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{ |
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return $this->perPage; |
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} |
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/** |
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* Set the number of models to return per page. |
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* |
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* @param int $perPage |
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*/ |
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public function setPerPage($perPage) |
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{ |
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$this->perPage = $perPage; |
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} |
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/** |
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* Apply the Query Filters |
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* |
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* @return |
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*/ |
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private function applyQueryFilters() |
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{ |
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if (is_array($this->getQueryFilter())) { |
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return $this->createQueryFilter(); |
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} |
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return $this->getQueryFilter(); |
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} |
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/** |
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* Create the Query Filter from Array |
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* |
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* @return |
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*/ |
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private function createQueryFilter() |
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{ |
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if (count($this->getQueryFilter()) > 0) { |
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foreach ($this->getQueryFilter() as $filter => $parameters) { |
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if (!is_array($parameters)) { |
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$parameters = [$parameters]; |
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} |
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$this->query = call_user_func_array([$this->query, $filter], $parameters); |
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} |
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} |
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} |
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/** |
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* Access the Query Filter |
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* |
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* @return |
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*/ |
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public function getQueryFilter() |
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{ |
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return $this->queryFilter; |
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} |
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/** |
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* Set the Query Filter |
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* |
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* @param array $filter |
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* |
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* @return void |
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*/ |
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public function setQueryFilter($filter = []) |
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{ |
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$this->queryFilter = $filter; |
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} |
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} |
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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
Idable
provides a methodequalsId
that 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.