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<?php |
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namespace Backpack\CRUD\app\Library\CrudPanel\Traits; |
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use Backpack\CRUD\app\Exceptions\BackpackProRequiredException; |
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use Exception; |
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use Illuminate\Support\Str; |
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/** |
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* Properties and methods used by the List operation. |
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*/ |
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trait Read |
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{ |
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/** |
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* Find and retrieve the id of the current entry. |
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* |
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* @return int|bool The id in the db or false. |
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*/ |
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public function getCurrentEntryId() |
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{ |
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if ($this->entry) { |
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return $this->entry->getKey(); |
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} |
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$params = \Route::current()->parameters(); |
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return // use the entity name to get the current entry |
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// this makes sure the ID is corrent even for nested resources |
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$this->getRequest()->input($this->entity_name) ?? |
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// otherwise use the next to last parameter |
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array_values($params)[count($params) - 1] ?? |
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// otherwise return false |
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false; |
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} |
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/** |
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* Find and retrieve the current entry. |
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* |
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* @return \Illuminate\Database\Eloquent\Model|bool The row in the db or false. |
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*/ |
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public function getCurrentEntry() |
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{ |
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$id = $this->getCurrentEntryId(); |
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if ($id === false) { |
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return false; |
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} |
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return $this->getEntry($id); |
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} |
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/** |
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* Find and retrieve an entry in the database or fail. |
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* |
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* @param int The id of the row in the db to fetch. |
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* @return \Illuminate\Database\Eloquent\Model The row in the db. |
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*/ |
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public function getEntry($id) |
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{ |
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if (! $this->entry) { |
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$this->eagerLoadRelationships('fields'); |
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$this->entry = $this->query->findOrFail($id); |
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$this->entry = $this->entry->withFakes(); |
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} |
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return $this->entry; |
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} |
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/** |
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* Find and retrieve an entry in the database or fail. |
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* When found, make sure we set the Locale on it. |
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* |
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* @param int The id of the row in the db to fetch. |
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* @return \Illuminate\Database\Eloquent\Model The row in the db. |
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*/ |
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public function getEntryWithLocale($id) |
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{ |
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if (! $this->entry) { |
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$this->entry = $this->getEntry($id); |
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} |
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if ($this->entry->translationEnabled()) { |
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$locale = request('_locale', \App::getLocale()); |
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if (in_array($locale, array_keys($this->entry->getAvailableLocales()))) { |
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$this->entry->setLocale($locale); |
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} |
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} |
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return $this->entry; |
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} |
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/** |
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* Make the query JOIN all relationships used in the definitions (fields, columns). |
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* So there will be less database queries overall. |
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*/ |
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public function eagerLoadRelationships(string $definitions) |
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{ |
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$definitions = $this->{$definitions}(); |
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$relationStrings = []; |
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// dd($definitions); |
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foreach ($definitions as $definitionName => $definition) { |
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$relationString = isset($definition['entity']) && $definition['entity'] !== false ? $definition['entity'] : ''; |
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if (strpos($definition['entity'], '.') !== false) { |
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$definitionAttribute = $definition['attribute'] ?? null; |
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if ($definitionAttribute) { |
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$relationString = Str::endsWith($relationString, $definitionAttribute) ? Str::beforeLast($relationString, '.') : $relationString; |
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$relationStrings[] = $relationString; |
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continue; |
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} |
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$parts = explode('.', $relationString); |
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$model = $this->model; |
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// Iterate over each relation part to find the valid relations without attributes |
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// We should eager load the relation but not the attribute |
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foreach ($parts as $i => $part) { |
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try { |
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$model = $model->$part()->getRelated(); |
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} catch (Exception $e) { |
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$relationString = implode('.', array_slice($parts, 0, $i)); |
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} |
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} |
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$relationStrings[] = $relationString; |
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continue; |
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} |
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if ($relationString) { |
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$relationStrings[] = $relationString; |
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} |
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} |
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$this->with(array_unique($relationStrings)); |
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} |
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/** |
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* Return a Model builder instance with the current crud query applied. |
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* |
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* @return \Illuminate\Database\Eloquent\Builder |
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*/ |
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public function getModelWithCrudPanelQuery() |
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{ |
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return $this->model->setQuery($this->query->getQuery()); |
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} |
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/** |
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* Find and retrieve an entry in the database or fail. |
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* |
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* @param int The id of the row in the db to fetch. |
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* @return \Illuminate\Database\Eloquent\Model The row in the db. |
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*/ |
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public function getEntryWithoutFakes($id) |
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{ |
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return $this->getModelWithCrudPanelQuery()->findOrFail($id); |
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} |
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/** |
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* Make the query JOIN all relationships used in the columns, too, |
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* so there will be less database queries overall. |
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*/ |
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public function autoEagerLoadRelationshipColumns() |
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{ |
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$relationships = $this->getColumnsRelationships(); |
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foreach ($relationships as $relation) { |
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if (strpos($relation, '.') !== false) { |
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$parts = explode('.', $relation); |
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$model = $this->model; |
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// Iterate over each relation part to find the valid relations without attributes |
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// We should eager load the relation but not the attribute |
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foreach ($parts as $i => $part) { |
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try { |
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$model = $model->$part()->getRelated(); |
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} catch (Exception $e) { |
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$relation = implode('.', array_slice($parts, 0, $i)); |
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} |
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} |
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} |
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$this->with($relation); |
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} |
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} |
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/** |
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* Get all entries from the database. |
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* |
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* @return array|\Illuminate\Database\Eloquent\Collection |
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*/ |
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public function getEntries() |
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{ |
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$this->autoEagerLoadRelationshipColumns(); |
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$entries = $this->query->get(); |
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// add the fake columns for each entry |
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foreach ($entries as $key => $entry) { |
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$entry->addFakes($this->getFakeColumnsAsArray()); |
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} |
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return $entries; |
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} |
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/** |
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* Enable the DETAILS ROW functionality:. |
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* |
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* In the table view, show a plus sign next to each entry. |
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* When clicking that plus sign, an AJAX call will bring whatever content you want from the EntityCrudController::showDetailsRow($id) and show it to the user. |
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*/ |
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public function enableDetailsRow() |
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{ |
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if (! backpack_pro()) { |
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throw new BackpackProRequiredException('Details row'); |
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} |
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$this->setOperationSetting('detailsRow', true); |
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} |
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/** |
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* Disable the DETAILS ROW functionality:. |
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*/ |
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public function disableDetailsRow() |
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{ |
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$this->setOperationSetting('detailsRow', false); |
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} |
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/** |
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* Add two more columns at the beginning of the ListEntrie table: |
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* - one shows the checkboxes needed for bulk actions |
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* - one is blank, in order for evenual detailsRow or expand buttons |
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* to be in a separate column. |
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*/ |
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public function enableBulkActions() |
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{ |
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$this->setOperationSetting('bulkActions', true); |
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} |
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/** |
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* Remove the two columns needed for bulk actions. |
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*/ |
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public function disableBulkActions() |
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{ |
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$this->setOperationSetting('bulkActions', false); |
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$this->removeColumn('bulk_actions'); |
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} |
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/** |
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* Set the number of rows that should be show on the list view. |
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*/ |
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public function setDefaultPageLength($value) |
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{ |
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$this->abortIfInvalidPageLength($value); |
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$this->setOperationSetting('defaultPageLength', $value); |
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} |
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/** |
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* Get the number of rows that should be show on the list view. |
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* |
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* @return int |
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*/ |
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public function getDefaultPageLength() |
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{ |
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return $this->getOperationSetting('defaultPageLength') ?? config('backpack.crud.operations.list.defaultPageLength') ?? 25; |
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} |
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/** |
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* If a custom page length was specified as default, make sure it |
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* also show up in the page length menu. |
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*/ |
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public function addCustomPageLengthToPageLengthMenu() |
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{ |
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$values = $this->getOperationSetting('pageLengthMenu')[0]; |
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$labels = $this->getOperationSetting('pageLengthMenu')[1]; |
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if (array_search($this->getDefaultPageLength(), $values) === false) { |
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for ($i = 0; $i < count($values); $i++) { |
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if ($values[$i] > $this->getDefaultPageLength() || $values[$i] === -1) { |
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array_splice($values, $i, 0, $this->getDefaultPageLength()); |
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array_splice($labels, $i, 0, $this->getDefaultPageLength()); |
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break; |
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} |
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if ($i === count($values) - 1) { |
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$values[] = $this->getDefaultPageLength(); |
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$labels[] = $this->getDefaultPageLength(); |
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break; |
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} |
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} |
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} |
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$this->setOperationSetting('pageLengthMenu', [$values, $labels]); |
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} |
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/** |
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* Specify array of available page lengths on the list view. |
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* |
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* @param array|int $menu |
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* |
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* https://backpackforlaravel.com/docs/4.1/crud-cheat-sheet#page-length |
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*/ |
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public function setPageLengthMenu($menu) |
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{ |
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if (is_array($menu)) { |
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// start checking $menu integrity |
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if (count($menu) !== count($menu, COUNT_RECURSIVE)) { |
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// developer defined as setPageLengthMenu([[50, 100, 300]]) or setPageLengthMenu([[50, 100, 300],['f','h','t']]) |
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// we will apply the same labels as the values to the menu if developer didn't |
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$this->abortIfInvalidPageLength($menu[0]); |
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312
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if (! isset($menu[1]) || ! is_array($menu[1])) { |
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$menu[1] = $menu[0]; |
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} |
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} else { |
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// developer defined setPageLengthMenu([10 => 'f', 100 => 'h', 300 => 't']) OR setPageLengthMenu([50, 100, 300]) |
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$menu = $this->buildPageLengthMenuFromArray($menu); |
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} |
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} else { |
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// developer added only a single value setPageLengthMenu(10) |
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$this->abortIfInvalidPageLength($menu); |
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$menu = [[$menu], [$menu]]; |
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} |
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$this->setOperationSetting('pageLengthMenu', $menu); |
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} |
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/** |
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* Builds the menu from the given array. It works out with two different types of arrays: |
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* [1, 2, 3] AND [1 => 'one', 2 => 'two', 3 => 'three']. |
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* |
333
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* @param array $menu |
334
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* @return array |
335
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*/ |
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private function buildPageLengthMenuFromArray($menu) |
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{ |
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// check if the values of the array are strings, in case developer defined: |
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// setPageLengthMenu([0 => 'f', 100 => 'h', 300 => 't']) |
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if (count(array_filter(array_values($menu), 'is_string')) > 0) { |
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$values = array_keys($menu); |
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$labels = array_values($menu); |
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$this->abortIfInvalidPageLength($values); |
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return [$values, $labels]; |
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} else { |
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// developer defined length as setPageLengthMenu([50, 100, 300]) |
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// we will use the same values as labels |
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$this->abortIfInvalidPageLength($menu); |
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352
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return [$menu, $menu]; |
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} |
354
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} |
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356
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/** |
357
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* Get page length menu for the list view. |
358
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* |
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* @return array |
360
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*/ |
361
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public function getPageLengthMenu() |
362
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{ |
363
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// if we have a 2D array, update all the values in the right hand array to their translated values |
364
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if (isset($this->getOperationSetting('pageLengthMenu')[1]) && is_array($this->getOperationSetting('pageLengthMenu')[1])) { |
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$aux = $this->getOperationSetting('pageLengthMenu'); |
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foreach ($this->getOperationSetting('pageLengthMenu')[1] as $key => $val) { |
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|
|
$aux[1][$key] = trans($val); |
368
|
|
|
} |
369
|
|
|
$this->setOperationSetting('pageLengthMenu', $aux); |
370
|
|
|
} |
371
|
|
|
$this->addCustomPageLengthToPageLengthMenu(); |
372
|
|
|
|
373
|
|
|
return $this->getOperationSetting('pageLengthMenu'); |
374
|
|
|
} |
375
|
|
|
|
376
|
|
|
/** |
377
|
|
|
* Checks if the provided PageLength segment is valid. |
378
|
|
|
* |
379
|
|
|
* @param array|int $value |
380
|
|
|
* @return void |
381
|
|
|
*/ |
382
|
|
|
private function abortIfInvalidPageLength($value) |
383
|
|
|
{ |
384
|
|
|
if ($value === 0 || (is_array($value) && in_array(0, $value))) { |
385
|
|
|
abort(500, 'You should not use 0 as a key in paginator. If you are looking for "ALL" option, use -1 instead.'); |
386
|
|
|
} |
387
|
|
|
} |
388
|
|
|
|
389
|
|
|
/* |
390
|
|
|
|-------------------------------------------------------------------------- |
391
|
|
|
| EXPORT BUTTONS |
392
|
|
|
|-------------------------------------------------------------------------- |
393
|
|
|
*/ |
394
|
|
|
|
395
|
|
|
/** |
396
|
|
|
* Tell the list view to show the DataTables export buttons. |
397
|
|
|
*/ |
398
|
|
|
public function enableExportButtons() |
399
|
|
|
{ |
400
|
|
|
if (! backpack_pro()) { |
401
|
|
|
throw new BackpackProRequiredException('Export buttons'); |
402
|
|
|
} |
403
|
|
|
|
404
|
|
|
$this->setOperationSetting('exportButtons', true); |
405
|
|
|
$this->setOperationSetting('showTableColumnPicker', true); |
406
|
|
|
$this->setOperationSetting('showExportButton', true); |
407
|
|
|
} |
408
|
|
|
|
409
|
|
|
/** |
410
|
|
|
* Check if export buttons are enabled for the table view. |
411
|
|
|
* |
412
|
|
|
* @return bool |
413
|
|
|
*/ |
414
|
|
|
public function exportButtons() |
415
|
|
|
{ |
416
|
|
|
return $this->getOperationSetting('exportButtons') ?? false; |
417
|
|
|
} |
418
|
|
|
} |
419
|
|
|
|