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<?php |
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/** |
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* |
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* part-db version 0.1 |
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* Copyright (C) 2005 Christoph Lechner |
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* http://www.cl-projects.de/ |
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* |
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* part-db version 0.2+ |
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* Copyright (C) 2009 K. Jacobs and others (see authors.php) |
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* http://code.google.com/p/part-db/ |
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* |
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* Part-DB Version 0.4+ |
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* Copyright (C) 2016 - 2019 Jan Böhmer |
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* https://github.com/jbtronics |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA |
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* |
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*/ |
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namespace App\Services\Attachments; |
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use App\Entity\Attachments\Attachment; |
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use App\Entity\Parts\Part; |
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use App\Services\AttachmentHelper; |
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/** |
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* @package App\Services\Attachments |
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*/ |
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class PartPreviewGenerator |
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{ |
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protected $attachmentHelper; |
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public function __construct(AttachmentHelper $attachmentHelper) |
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{ |
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$this->attachmentHelper = $attachmentHelper; |
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} |
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/** |
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* Determines what attachment should be used for previewing a part (especially in part table). |
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* The returned attachment is guaranteed to be existing and be a picture. |
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* @param Part $part The part for which the attachment should be determined |
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* @return Attachment|null |
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*/ |
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public function previewAttachment(Part $part) : ?Attachment |
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{ |
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//First of all we check if the master attachment of the part is set (and a picture) |
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$attachment = $part->getMasterPictureAttachment(); |
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if ($this->isAttachmentValidPicture($attachment)) { |
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return $attachment; |
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} |
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//Otherwise check if the part has a footprint with a valid masterattachment |
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if ($part->getFootprint() !== null) { |
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$attachment = $part->getFootprint()->getMasterPictureAttachment(); |
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if ($this->isAttachmentValidPicture($attachment)) { |
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return $attachment; |
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} |
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} |
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//If nothing is available return null |
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return null; |
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} |
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/** |
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* Checks if a attachment is exising and a valid picture. |
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* @param Attachment|null $attachment The attachment that should be checked. |
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* @return bool True if the attachment is valid. |
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*/ |
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protected function isAttachmentValidPicture(?Attachment $attachment) : bool |
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{ |
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return $attachment !== null |
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&& $attachment->isPicture() |
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&& $this->attachmentHelper->isFileExisting($attachment); |
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} |
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} |
Part-DB /
Part-DB-symfony
