152 lines
3.4 KiB
PHP
152 lines
3.4 KiB
PHP
<?php
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/**
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* @file src/Model/Attach.php
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* @brief This file contains the Attach class for database interface
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*/
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namespace Friendica\Model;
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use Friendica\BaseObject;
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use Friendica\Core\StorageManager;
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use Friendica\Database\DBA;
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use Friendica\Database\DBStructure;
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use Friendica\Util\Security;
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/**
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* Class to handle attach dabatase table
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*/
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class Attach extends BaseObject
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{
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/**
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* @brief Return a list of fields that are associated with the attach table
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*
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* @return array field list
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*/
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private static function getFields()
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{
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$allfields = DBStructure::definition(false);
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$fields = array_keys($allfields['attach']['fields']);
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array_splice($fields, array_search('data', $fields), 1);
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return $fields;
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}
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/**
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* @brief Select rows from the attach table
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*
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* @param array $fields Array of selected fields, empty for all
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* @param array $conditions Array of fields for conditions
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* @param array $params Array of several parameters
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*
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* @return boolean|array
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*
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* @see \Friendica\Database\DBA::select
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*/
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public static function select(array $fields = [], array $conditions = [], array $params = [])
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{
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if (empty($fields)) {
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$selected = self::getFields();
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}
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$r = DBA::select('attach', $fields, $conditions, $params);
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return DBA::toArray($r);
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}
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/**
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* @brief Retrieve a single record from the attach table
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*
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* @param array $fields Array of selected fields, empty for all
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* @param array $conditions Array of fields for conditions
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* @param array $params Array of several parameters
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*
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* @return bool|array
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*
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* @see \Friendica\Database\DBA::select
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*/
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public static function selectFirst(array $fields = [], array $conditions = [], array $params = [])
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{
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if (empty($fields)) {
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$fields = self::getFields();
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}
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return DBA::selectFirst('attach', $fields, $conditions, $params);
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}
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/**
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* @brief Check if attachment with given conditions exists
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*
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* @param array $conditions Array of extra conditions
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*
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* @return boolean
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*/
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public static function exists(array $conditions)
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{
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return DBA::exists('attach', $conditions);
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}
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/**
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* @brief Retrive a single record given the ID
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*
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* @param int $id Row id of the record
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*
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* @return bool|array
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*
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* @see \Friendica\Database\DBA::select
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*/
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public static function getById($id)
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{
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return self::selectFirst([], ['id' => $id]);
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}
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/**
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* @brief Retrive a single record given the ID
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*
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* @param int $id Row id of the record
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*
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* @return bool|array
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*
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* @see \Friendica\Database\DBA::select
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*/
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public static function getByIdWithPermission($id)
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{
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$r = self::selectFirst(['uid'], ['id' => $id]);
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if ($r === false) {
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return false;
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}
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$sql_acl = Security::getPermissionsSQLByUserId($r['uid']);
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$conditions = [
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'`id` = ?' . $sql_acl,
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$id
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];
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$item = self::selectFirst([], $conditions);
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return $item;
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}
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/**
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* @brief Get file data for given row id. null if row id does not exist
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*
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* @param array $item Attachment data. Needs at least 'id', 'backend-class', 'backend-ref'
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*
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* @return string file data
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*/
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public static function getData($item)
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{
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if ($item['backend-class'] == '') {
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// legacy data storage in 'data' column
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$i = self::selectFirst(['data'], ['id' => $item['id']]);
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if ($i === false) {
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return null;
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}
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return $i['data'];
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} else {
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$backendClass = $item['backend-class'];
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$backendRef = $item['backend-ref'];
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return $backendClass::get($backendRef);
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}
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}
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} |