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<?php |
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namespace Backpack\CRUD\app\Library\Uploaders; |
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use Backpack\CRUD\app\Library\Uploaders\Support\Interfaces\UploaderInterface; |
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use Backpack\CRUD\app\Library\Uploaders\Support\Traits\HandleFileNaming; |
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use Backpack\CRUD\app\Library\Uploaders\Support\Traits\HandleRepeatableUploads; |
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use Illuminate\Database\Eloquent\Model; |
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use Illuminate\Database\Eloquent\SoftDeletes; |
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use Illuminate\Support\Facades\Storage; |
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use Illuminate\Support\Str; |
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abstract class Uploader implements UploaderInterface |
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{ |
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use HandleFileNaming; |
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use HandleRepeatableUploads; |
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private string $name; |
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private string $disk = 'public'; |
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private string $path = ''; |
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private bool $handleMultipleFiles = false; |
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private bool $deleteWhenEntryIsDeleted = true; |
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private bool|string $attachedToFakeField = false; |
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/** |
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* Cloud disks have the ability to generate temporary URLs to files, should we do it? |
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*/ |
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private bool $useTemporaryUrl = false; |
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/** |
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* When using temporary urls, define the time that the url will be valid. |
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*/ |
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private int $temporaryUrlExpirationTimeInMinutes = 1; |
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/** |
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* Indicates if the upload is relative to a relationship field/column. |
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*/ |
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private bool $isRelationship = false; |
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/** |
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* When previous files are updated, we need to keep track of them so that we don't add deleted files to the new list. |
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*/ |
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private $updatedPreviousFiles = null; |
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public function __construct(array $crudObject, array $configuration) |
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{ |
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$this->name = $crudObject['name']; |
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$this->disk = $configuration['disk'] ?? $crudObject['disk'] ?? $this->disk; |
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$this->path = $this->getPathFromConfiguration($crudObject, $configuration); |
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$this->attachedToFakeField = isset($crudObject['fake']) && $crudObject['fake'] ? ($crudObject['store_in'] ?? 'extras') : ($crudObject['store_in'] ?? false); |
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$this->useTemporaryUrl = $configuration['temporaryUrl'] ?? $this->useTemporaryUrl; |
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$this->temporaryUrlExpirationTimeInMinutes = $configuration['temporaryUrlExpirationTime'] ?? $this->temporaryUrlExpirationTimeInMinutes; |
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$this->deleteWhenEntryIsDeleted = $configuration['deleteWhenEntryIsDeleted'] ?? $this->deleteWhenEntryIsDeleted; |
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$this->fileNamer = is_callable($configuration['fileNamer'] ?? null) ? $configuration['fileNamer'] : $this->getFileNameGeneratorInstance($configuration['fileNamer'] ?? null); |
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} |
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/******************************* |
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* Static methods |
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*******************************/ |
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public static function for(array $crudObject, array $definition): UploaderInterface |
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{ |
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return new static($crudObject, $definition); |
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} |
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/******************************* |
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* public methods - event handler methods |
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*******************************/ |
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public function storeUploadedFiles(Model $entry): Model |
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{ |
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if ($this->handleRepeatableFiles) { |
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return $this->handleRepeatableFiles($entry); |
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} |
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if ($this->attachedToFakeField) { |
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$fakeFieldValue = $entry->{$this->attachedToFakeField}; |
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$fakeFieldValue = is_string($fakeFieldValue) ? json_decode($fakeFieldValue, true) : (array) $fakeFieldValue; |
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$fakeFieldValue[$this->getAttributeName()] = $this->uploadFiles($entry); |
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$entry->{$this->attachedToFakeField} = isset($entry->getCasts()[$this->attachedToFakeField]) ? $fakeFieldValue : json_encode($fakeFieldValue); |
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return $entry; |
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} |
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$entry->{$this->getAttributeName()} = $this->uploadFiles($entry); |
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return $entry; |
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} |
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public function retrieveUploadedFiles(Model $entry): Model |
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{ |
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if ($this->handleRepeatableFiles) { |
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return $this->retrieveRepeatableFiles($entry); |
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} |
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return $this->retrieveFiles($entry); |
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} |
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public function deleteUploadedFiles(Model $entry): void |
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{ |
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if ($this->deleteWhenEntryIsDeleted) { |
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if (! in_array(SoftDeletes::class, class_uses_recursive($entry), true)) { |
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$this->performFileDeletion($entry); |
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return; |
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} |
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if ($entry->isForceDeleting() === true) { |
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$this->performFileDeletion($entry); |
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} |
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} |
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} |
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/******************************* |
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* Getters |
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*******************************/ |
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public function getName(): string |
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{ |
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return $this->name; |
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} |
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public function getAttributeName(): string |
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{ |
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return Str::afterLast($this->name, '.'); |
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} |
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public function getDisk(): string |
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{ |
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return $this->disk; |
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} |
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public function getPath(): string |
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{ |
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return $this->path; |
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} |
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public function useTemporaryUrl(): bool |
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{ |
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return $this->useTemporaryUrl; |
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} |
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public function getExpirationTimeInMinutes(): int |
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{ |
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return $this->temporaryUrlExpirationTimeInMinutes; |
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} |
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public function getExpirationTimeInSeconds(): int |
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{ |
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return $this->getExpirationTimeInMinutes() * 60; |
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} |
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public function shouldDeleteFiles(): bool |
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{ |
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return $this->deleteWhenEntryIsDeleted; |
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} |
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public function getIdentifier(): string |
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{ |
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if ($this->handleRepeatableFiles) { |
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return $this->repeatableContainerName.'_'.$this->name; |
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} |
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return $this->name; |
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} |
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public function getNameForRequest(): string |
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{ |
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return $this->repeatableContainerName ?? $this->name; |
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} |
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public function canHandleMultipleFiles(): bool |
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{ |
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return $this->handleMultipleFiles; |
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} |
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public function isRelationship(): bool |
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{ |
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return $this->isRelationship; |
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} |
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public function getPreviousFiles(Model $entry): mixed |
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{ |
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if (! $this->attachedToFakeField) { |
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return $this->getOriginalValue($entry); |
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} |
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$value = $this->getOriginalValue($entry, $this->attachedToFakeField); |
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$value = is_string($value) ? json_decode($value, true) : (array) $value; |
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return $value[$this->getAttributeName()] ?? null; |
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} |
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/******************************* |
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* Setters - fluently configure the uploader |
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*******************************/ |
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public function multiple(): self |
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{ |
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$this->handleMultipleFiles = true; |
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return $this; |
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} |
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public function relationship(bool $isRelationship): self |
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{ |
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$this->isRelationship = $isRelationship; |
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return $this; |
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} |
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/******************************* |
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* Default implementation functions |
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*******************************/ |
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public function uploadFiles(Model $entry, $values = null) |
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{ |
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} |
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private function retrieveFiles(Model $entry): Model |
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{ |
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$value = $entry->{$this->getAttributeName()}; |
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if ($this->handleMultipleFiles) { |
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if (! isset($entry->getCasts()[$this->getName()]) && is_string($value)) { |
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$entry->{$this->getAttributeName()} = json_decode($value, true); |
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} |
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return $entry; |
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} |
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if ($this->attachedToFakeField) { |
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$values = $entry->{$this->attachedToFakeField}; |
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$values = is_string($values) ? json_decode($values, true) : (array) $values; |
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$values[$this->getAttributeName()] = isset($values[$this->getAttributeName()]) ? Str::after($values[$this->getAttributeName()], $this->path) : null; |
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$entry->{$this->attachedToFakeField} = json_encode($values); |
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return $entry; |
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} |
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$entry->{$this->getAttributeName()} = Str::after($value, $this->path); |
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return $entry; |
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} |
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private function deleteFiles(Model $entry) |
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{ |
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$values = $entry->{$this->getAttributeName()}; |
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if ($values === null) { |
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return; |
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} |
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if ($this->handleMultipleFiles) { |
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// ensure we have an array of values when field is not casted in model. |
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if (! isset($entry->getCasts()[$this->name]) && is_string($values)) { |
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$values = json_decode($values, true); |
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} |
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foreach ($values ?? [] as $value) { |
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$value = Str::start($value, $this->path); |
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Storage::disk($this->disk)->delete($value); |
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} |
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return; |
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} |
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$values = Str::start($values, $this->path); |
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Storage::disk($this->disk)->delete($values); |
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} |
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private function performFileDeletion(Model $entry) |
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{ |
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if (! $this->handleRepeatableFiles) { |
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$this->deleteFiles($entry); |
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return; |
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} |
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$this->deleteRepeatableFiles($entry); |
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} |
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/******************************* |
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* Private helper methods |
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*******************************/ |
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private function getPathFromConfiguration(array $crudObject, array $configuration): string |
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{ |
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$this->path = $configuration['path'] ?? $crudObject['prefix'] ?? $this->path; |
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return empty($this->path) ? $this->path : Str::of($this->path)->finish('/')->value(); |
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} |
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private function getOriginalValue(Model $entry, $field = null) |
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{ |
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if ($this->updatedPreviousFiles !== null) { |
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return $this->updatedPreviousFiles; |
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} |
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$previousValue = $entry->getOriginal($field ?? $this->getAttributeName()); |
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if (! $previousValue) { |
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return $previousValue; |
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} |
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if (method_exists($entry, 'translationEnabled') && $entry->translationEnabled()) { |
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return $previousValue[$entry->getLocale()] ?? null; |
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} |
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return $previousValue; |
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} |
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} |
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