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<?php |
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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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namespace App\Entity; |
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use Doctrine\ORM\Mapping as ORM; |
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use Webmozart\Assert\Assert; |
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/** |
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* This entity represents the permission fields a user or group can have. |
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* |
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* @ORM\Embeddable() |
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*/ |
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class PermissionsEmbed |
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{ |
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/** |
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* Permission values. |
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*/ |
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public const INHERIT = 0b00; |
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public const ALLOW = 0b01; |
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public const DISALLOW = 0b10; |
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/** |
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* Permission strings. |
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*/ |
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public const STORELOCATIONS = 'storelocations'; |
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public const FOOTRPINTS = 'footprints'; |
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public const CATEGORIES = 'categories'; |
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public const SUPPLIERS = 'suppliers'; |
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public const MANUFACTURERS = 'manufacturers'; |
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public const DEVICES = 'devices'; |
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public const ATTACHMENT_TYPES = 'attachment_types'; |
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public const TOOLS = 'tools'; |
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public const PARTS = 'parts'; |
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public const PARTS_NAME = 'parts_name'; |
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public const PARTS_DESCRIPTION = 'parts_description'; |
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public const PARTS_INSTOCK = 'parts_instock'; |
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public const PARTS_MININSTOCK = 'parts_mininstock'; |
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public const PARTS_FOOTPRINT = 'parts_footprint'; |
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public const PARTS_COMMENT = 'parts_comment'; |
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public const PARTS_STORELOCATION = 'parts_storelocation'; |
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public const PARTS_MANUFACTURER = 'parts_manufacturer'; |
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public const PARTS_ORDERDETAILS = 'parts_orderdetails'; |
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public const PARTS_PRICES = 'parts_prices'; |
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public const PARTS_ATTACHMENTS = 'parts_attachments'; |
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public const PARTS_ORDER = 'parts_order'; |
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public const GROUPS = 'groups'; |
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public const USERS = 'users'; |
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public const DATABASE = 'database'; |
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public const CONFIG = 'config'; |
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public const SYSTEM = 'system'; |
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public const DEVICE_PARTS = 'devices_parts'; |
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public const SELF = 'self'; |
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public const LABELS = 'labels'; |
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/** |
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* @var int |
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* @ORM\Column(type="integer") |
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*/ |
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protected $system = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer") |
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*/ |
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protected $groups = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer") |
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*/ |
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protected $users = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer") |
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*/ |
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protected $self = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer", name="system_config") |
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*/ |
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protected $config = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer", name="system_database") |
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*/ |
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protected $database = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="bigint") |
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*/ |
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protected $parts = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="smallint") |
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*/ |
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protected $parts_name = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="smallint") |
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*/ |
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protected $parts_description = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="smallint") |
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*/ |
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protected $parts_instock = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="smallint") |
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*/ |
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protected $parts_mininstock = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="smallint") |
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*/ |
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protected $parts_footprint = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="smallint") |
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*/ |
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protected $parts_storelocation = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="smallint") |
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*/ |
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protected $parts_manufacturer = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="smallint") |
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*/ |
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protected $parts_comment = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="smallint") |
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*/ |
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protected $parts_order = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="smallint") |
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*/ |
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protected $parts_orderdetails = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="smallint") |
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*/ |
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protected $parts_prices = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="smallint", name="parts_attachements") |
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*/ |
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protected $parts_attachments = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer") |
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*/ |
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protected $devices = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer") |
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*/ |
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protected $devices_parts = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer") |
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*/ |
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protected $storelocations = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer") |
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*/ |
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protected $footprints = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer") |
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*/ |
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protected $categories = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer") |
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*/ |
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protected $suppliers = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer") |
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*/ |
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protected $manufacturers = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer", name="attachement_types") |
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*/ |
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protected $attachment_types = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer") |
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*/ |
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protected $tools = 0; |
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/** |
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* @var int |
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* @ORM\Column(type="integer") |
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*/ |
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protected $labels = 0; |
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/** |
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* Checks whether a permission with the given name is valid for this object. |
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* @param string $permission_name The name of the permission which should be checked for. |
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* @return bool True if the permission is existing on this object. |
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*/ |
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public function isValidPermissionName(string $permission_name) : bool |
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{ |
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return isset($this->$permission_name); |
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} |
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/** |
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* Returns the bit pair value of the given permission. |
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* |
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* @param string $permission_name The name of the permission, for which the bit pair should be returned. |
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* @param int $bit_n The (lower) bit number of the bit pair, which should be read. |
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* |
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* @return int The value of the bit pair. Compare to the INHERIT, ALLOW, and DISALLOW consts in this class. |
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*/ |
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public function getBitValue(string $permission_name, int $bit_n): int |
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{ |
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if(!$this->isValidPermissionName($permission_name)) { |
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throw new \InvalidArgumentException('No permission with the given name is existing!'); |
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} |
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$perm_int = $this->$permission_name; |
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return static::readBitPair($perm_int, $bit_n); |
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} |
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/** |
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* Returns the value of the operation for the given permission. |
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* |
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* @param string $permission_name The name of the permission, for which the operation should be returned. |
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* @param int $bit_n The (lower) bit number of the bit pair for the operation. |
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* |
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* @return bool|null The value of the operation. True, if the given operation is allowed, false if disallowed |
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* and null if it should inherit from parent. |
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*/ |
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public function getPermissionValue(string $permission_name, int $bit_n): ?bool |
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{ |
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$value = $this->getBitValue($permission_name, $bit_n); |
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if (self::ALLOW === $value) { |
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return true; |
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} |
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if (self::DISALLOW === $value) { |
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return false; |
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} |
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return null; |
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} |
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/** |
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* Sets the value of the given permission and operation. |
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* @param string $permission_name The name of the permission, for which the bit pair should be written. |
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* @param int $bit_n The (lower) bit number of the bit pair, which should be written. |
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* @param bool|null $new_value The new value for the operation: |
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* True, if the given operation is allowed, false if disallowed |
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* and null if it should inherit from parent. |
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* @return PermissionsEmbed The instance itself. |
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*/ |
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public function setPermissionValue(string $permission_name, int $bit_n, ?bool $new_value) : self |
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{ |
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//Determine which bit value the given value is. |
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if($new_value === true) { |
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$bit_value = static::ALLOW; |
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} elseif($new_value === false) { |
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$bit_value = static::DISALLOW; |
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} else { |
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$bit_value = static::INHERIT; |
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} |
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$this->setBitValue($permission_name, $bit_n, $bit_value); |
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return $this; |
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} |
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/** |
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* Sets the bit value of the given permission and operation. |
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* @param string $permission_name The name of the permission, for which the bit pair should be written. |
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* @param int $bit_n The (lower) bit number of the bit pair, which should be written. |
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* @param int $new_value The new (bit) value of the bit pair, which should be written. |
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* @return PermissionsEmbed The instance itself. |
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*/ |
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public function setBitValue(string $permission_name, int $bit_n, int $new_value) : self |
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{ |
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if(!$this->isValidPermissionName($permission_name)) { |
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throw new \InvalidArgumentException('No permission with the given name is existing!'); |
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} |
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$this->$permission_name = static::writeBitPair($this->$permission_name, $bit_n, $new_value); |
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return $this; |
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} |
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/** |
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* Reads a bit pair from $data. |
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* |
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* @param $data int The data from where the bits should be extracted from. |
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* @param $n int The number of the lower bit (of the pair) that should be read. Starting from zero. |
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* |
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* @return int The value of the bit pair. |
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*/ |
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final protected static function readBitPair(int $data, int $n): int |
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{ |
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Assert::lessThanEq($n, 31, '$n must be smaller than 32, because only a 32bit int is used! Got %s.'); |
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if (0 !== $n % 2) { |
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throw new \InvalidArgumentException('$n must be dividable by 2, because we address bit pairs here!'); |
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} |
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$mask = 0b11 << $n; //Create a mask for the data |
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return ($data & $mask) >> $n; //Apply mask and shift back |
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} |
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/** |
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* Writes a bit pair in the given $data and returns it. |
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* |
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* @param $data int The data which should be modified. |
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* @param $n int The number of the lower bit of the pair which should be written. |
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* @param $new int The new value of the pair. |
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* |
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* @return int The new data with the modified pair. |
378
|
|
|
*/ |
379
|
|
|
final protected static function writeBitPair(int $data, int $n, int $new): int |
380
|
|
|
{ |
381
|
|
|
Assert::lessThanEq($n, 31, '$n must be smaller than 32, because only a 32bit int is used! Got %s.'); |
382
|
|
|
Assert::lessThanEq($new, 3, '$new must be smaller than 3, because a bit pair is written! Got %s.'); |
383
|
|
|
Assert::greaterThanEq($new, 0, '$new must not be negative, because a bit pair is written! Got %s.'); |
384
|
|
|
|
385
|
|
|
if (0 !== $n % 2) { |
386
|
|
|
throw new \InvalidArgumentException('$n must be dividable by 2, because we address bit pairs here!'); |
387
|
|
|
} |
388
|
|
|
|
389
|
|
|
$mask = 0b11 << $n; //Mask all bits that should be writen |
390
|
|
|
$newval = $new << $n; //The new value. |
391
|
|
|
$data = ($data & ~$mask) | ($newval & $mask); |
392
|
|
|
|
393
|
|
|
return $data; |
394
|
|
|
} |
395
|
|
|
} |
396
|
|
|
|