friendica-github/src/Model/Storage/IStorage.php
2020-02-09 15:45:36 +01:00

120 lines
3.2 KiB
PHP

<?php
/**
* @copyright Copyright (C) 2020, Friendica
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Model\Storage;
/**
* Interface for storage backends
*/
interface IStorage
{
/**
* Get data from backend
*
* @param string $reference Data reference
*
* @return string
*/
public function get(string $reference);
/**
* Put data in backend as $ref. If $ref is not defined a new reference is created.
*
* @param string $data Data to save
* @param string $reference Data reference. Optional.
*
* @return string Saved data reference
*/
public function put(string $data, string $reference = "");
/**
* Remove data from backend
*
* @param string $reference Data reference
*
* @return boolean True on success
*/
public function delete(string $reference);
/**
* Get info about storage options
*
* @return array
*
* This method return an array with informations about storage options
* from which the form presented to the user is build.
*
* The returned array is:
*
* [
* 'option1name' => [ ..info.. ],
* 'option2name' => [ ..info.. ],
* ...
* ]
*
* An empty array can be returned if backend doesn't have any options
*
* The info array for each option MUST be as follows:
*
* [
* 'type', // define the field used in form, and the type of data.
* // one of 'checkbox', 'combobox', 'custom', 'datetime',
* // 'input', 'intcheckbox', 'password', 'radio', 'richtext'
* // 'select', 'select_raw', 'textarea'
*
* 'label', // Translatable label of the field
* 'value', // Current value
* 'help text', // Translatable description for the field
* extra data // Optional. Depends on 'type':
* // select: array [ value => label ] of choices
* // intcheckbox: value of input element
* // select_raw: prebuild html string of < option > tags
* ]
*
* See https://github.com/friendica/friendica/wiki/Quick-Template-Guide
*/
public function getOptions();
/**
* Validate and save options
*
* @param array $data Array [optionname => value] to be saved
*
* @return array Validation errors: [optionname => error message]
*
* Return array must be empty if no error.
*/
public function saveOptions(array $data);
/**
* The name of the backend
*
* @return string
*/
public function __toString();
/**
* The name of the backend
*
* @return string
*/
public static function getName();
}