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<?php |
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/** |
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* This file is part of FacturaScripts |
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* Copyright (C) 2017-2024 Carlos Garcia Gomez <[email protected]> |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* 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 Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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namespace FacturaScripts\Core\Model\Base; |
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use FacturaScripts\Core\Base\DataBase; |
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use FacturaScripts\Core\Base\DataBase\DataBaseWhere; |
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use FacturaScripts\Core\Base\ToolBox; |
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use FacturaScripts\Core\Cache; |
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/** |
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* The class from which all views of the model are inherited. |
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* It allows the visualization of data of several tables of the database. |
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* This type of model is only for reading data, it does not allow modification |
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* or deletion of data directly. |
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* |
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* A main model ("master") must be indicated, which will be responsible for executing |
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* the data modification actions. This means that when inserting, modifying or deleting, |
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* only the operation on the indicated master model is performed. |
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* |
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* @author Jose Antonio Cuello Principal <[email protected]> |
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* @author Carlos García Gómez <[email protected]> |
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*/ |
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abstract class JoinModel |
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{ |
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/** |
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* It provides direct access to the database. |
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* |
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* @var DataBase |
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*/ |
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protected static $dataBase; |
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/** |
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* Master model |
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* |
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* @var ModelClass |
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*/ |
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protected $masterModel; |
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/** |
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* List of values for record view |
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* |
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* @var array |
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*/ |
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private $values = []; |
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/** |
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* List of tables required for the execution of the view. |
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*/ |
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abstract protected function getTables(): array; |
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/** |
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* List of fields or columns to select clausule |
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*/ |
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abstract protected function getFields(): array; |
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/** |
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* List of tables related to from clausule |
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*/ |
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abstract protected function getSQLFrom(): string; |
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/** |
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* Constructor and class initializer. |
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* |
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* @param array $data |
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*/ |
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public function __construct(array $data = []) |
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{ |
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if (self::$dataBase === null) { |
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self::$dataBase = new DataBase(); |
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} |
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if (empty($data)) { |
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$this->clear(); |
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} else { |
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$this->loadFromData($data); |
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} |
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} |
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/** |
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* Return model view field value |
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* |
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* @param string $name |
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* |
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* @return mixed |
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*/ |
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public function __get($name) |
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{ |
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if (!isset($this->values[$name])) { |
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$this->values[$name] = null; |
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} |
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return $this->values[$name]; |
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} |
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/** |
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* Check if exits value to property |
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* |
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* @param string $name |
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* |
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* @return bool |
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*/ |
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public function __isset($name) |
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{ |
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return array_key_exists($name, $this->values); |
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} |
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/** |
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* Set value to model view field |
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* |
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* @param string $name |
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* @param mixed $value |
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*/ |
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public function __set($name, $value) |
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{ |
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$this->values[$name] = $value; |
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} |
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/** |
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* Load data for the indicated where. |
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* |
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* @param DataBaseWhere[] $where filters to apply to model records. |
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* @param array $order fields to use in the sorting. For example ['code' => 'ASC'] |
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* @param int $offset |
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* @param int $limit |
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* |
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* @return static[] |
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*/ |
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public function all(array $where, array $order = [], int $offset = 0, int $limit = 0): array |
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{ |
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$result = []; |
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if ($this->checkTables()) { |
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$sql = 'SELECT ' . $this->fieldsList() . ' FROM ' . $this->getSQLFrom() |
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. DataBaseWhere::getSQLWhere($where) . $this->getGroupBy() . $this->getOrderBy($order); |
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foreach (self::$dataBase->selectLimit($sql, $limit, $offset) as $row) { |
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$result[] = new static($row); |
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} |
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} |
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return $result; |
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} |
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/** |
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* Reset the values of all model properties. |
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*/ |
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public function clear() |
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{ |
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foreach (array_keys($this->getFields()) as $field) { |
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$this->values[$field] = null; |
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} |
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} |
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/** |
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* Returns the number of records that meet the condition. |
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* |
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* @param DataBaseWhere[] $where filters to apply to records. |
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* |
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* @return int |
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*/ |
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public function count(array $where = []): int |
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{ |
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$groupFields = $this->getGroupFields(); |
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if (!empty($groupFields)) { |
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$groupFields .= ', '; |
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} |
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// buscamos en caché |
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$cacheKey = 'join-model-' . md5($this->getSQLFrom()) . '-count'; |
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if (empty($where)) { |
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$count = Cache::get($cacheKey); |
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if (is_numeric($count)) { |
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return $count; |
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} |
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} |
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$sql = 'SELECT ' . $groupFields . 'COUNT(*) count_total' |
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. ' FROM ' . $this->getSQLFrom() |
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. DataBaseWhere::getSQLWhere($where) |
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. $this->getGroupBy(); |
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$data = self::$dataBase->select($sql); |
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$count = count($data); |
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$final = $count == 1 ? (int)$data[0]['count_total'] : $count; |
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// guardamos en caché |
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if (empty($where)) { |
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Cache::set($cacheKey, $final); |
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} |
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return $final; |
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} |
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/** |
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* Remove the model master data from the database. |
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* |
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* @return bool |
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*/ |
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public function delete(): bool |
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{ |
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if (isset($this->masterModel)) { |
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$primaryColumn = $this->masterModel->primaryColumn(); |
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$this->masterModel->{$primaryColumn} = $this->primaryColumnValue(); |
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return $this->masterModel->delete(); |
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} |
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return false; |
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} |
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/** |
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* Returns true if the model data is stored in the database. |
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* |
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* @return bool |
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*/ |
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public function exists(): bool |
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{ |
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return isset($this->masterModel) ? $this->masterModel->exists() : $this->count() > 0; |
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} |
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public function getModelFields(): array |
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{ |
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$fields = []; |
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foreach ($this->getFields() as $key => $field) { |
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$fields[$key] = [ |
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'name' => $field, |
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'type' => '' |
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]; |
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// si contiene paréntesis, saltamos |
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if (false !== strpos($field, '(')) { |
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continue; |
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} |
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// extraemos el nombre de la tabla |
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$arrayField = explode('.', $field); |
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if (false === is_array($arrayField) && false === isset($arrayField[0])) { |
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continue; |
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} |
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// comprobamos si existe la tabla |
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if (false === in_array($arrayField[0], $this->getTables())) { |
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continue; |
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} |
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// consultamos la información de la tabla para obtener el tipo |
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$columns = self::$dataBase->getColumns($arrayField[0]); |
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if (isset($columns[$arrayField[1]])) { |
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$fields[$key]['type'] = $columns[$arrayField[1]]['type']; |
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} |
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} |
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return $fields; |
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} |
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/** |
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* Fill the class with the registry values |
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* whose primary column corresponds to the value $cod, or according to the condition |
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* where indicated, if value is not reported in $cod. |
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* Initializes the values of the class if there is no record that |
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* meet the above conditions. |
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* Returns True if the record exists and False otherwise. |
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* |
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* @param string $cod |
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* @param array $where |
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* @param array $orderby |
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* |
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* @return bool |
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*/ |
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public function loadFromCode($cod, array $where = [], array $orderby = []): bool |
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{ |
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if (!$this->loadFilterWhere($cod, $where)) { |
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$this->clear(); |
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return false; |
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} |
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$sql = 'SELECT ' . $this->fieldsList() |
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. ' FROM ' . $this->getSQLFrom() |
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. DataBaseWhere::getSQLWhere($where) |
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. $this->getGroupBy() |
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. $this->getOrderBy($orderby); |
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$data = self::$dataBase->selectLimit($sql, 1); |
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if (empty($data)) { |
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$this->clear(); |
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return false; |
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} |
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$this->loadFromData($data[0]); |
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return true; |
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} |
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/** |
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* Gets the value from model view cursor of the master model primary key. |
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* |
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* @return mixed |
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*/ |
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public function primaryColumnValue() |
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{ |
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if (isset($this->masterModel)) { |
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$primaryColumn = $this->masterModel->primaryColumn(); |
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return $this->{$primaryColumn}; |
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} |
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return null; |
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} |
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public function totalSum(string $field, array $where = []): float |
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{ |
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// buscamos en caché |
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$cacheKey = 'join-model-' . md5($this->getSQLFrom()) . '-' . $field . '-total-sum'; |
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if (empty($where)) { |
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$count = Cache::get($cacheKey); |
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if (is_numeric($count)) { |
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return $count; |
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} |
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} |
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// obtenemos el nombre completo del campo |
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$fields = $this->getFields(); |
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$field = $fields[$field] ?? $field; |
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$sql = false !== strpos($field, '(') ? |
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'SELECT ' . $field . ' AS total_sum' . ' FROM ' . $this->getSQLFrom() . DataBaseWhere::getSQLWhere($where) : |
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'SELECT SUM(' . $field . ') AS total_sum' . ' FROM ' . $this->getSQLFrom() . DataBaseWhere::getSQLWhere($where); |
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$data = self::$dataBase->select($sql); |
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$sum = count($data) == 1 ? (float)$data[0]['total_sum'] : 0.0; |
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// guardamos en caché |
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if (empty($where)) { |
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Cache::set($cacheKey, $sum); |
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} |
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return $sum; |
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} |
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/** |
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* Returns the url where to see / modify the data. |
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* |
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* @param string $type |
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* @param string $list |
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* |
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* @return string |
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*/ |
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public function url(string $type = 'auto', string $list = 'List'): string |
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{ |
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if (isset($this->masterModel)) { |
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$primaryColumn = $this->masterModel->primaryColumn(); |
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$this->masterModel->{$primaryColumn} = $this->primaryColumnValue(); |
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return $this->masterModel->url($type, $list); |
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} |
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return ''; |
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} |
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/** |
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* Check list of tables required. |
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* |
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* @return bool |
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*/ |
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private function checkTables(): bool |
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{ |
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foreach ($this->getTables() as $tableName) { |
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if (!self::$dataBase->tableExists($tableName)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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|
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/** |
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* Convert the list of fields into a string to use as a select clause |
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* |
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|
|
* @return string |
391
|
|
|
*/ |
392
|
|
|
private function fieldsList(): string |
393
|
|
|
{ |
394
|
|
|
$result = ''; |
395
|
|
|
$comma = ''; |
396
|
|
|
foreach ($this->getFields() as $key => $value) { |
397
|
|
|
$result = $result . $comma . $value . ' ' . $key; |
398
|
|
|
$comma = ','; |
399
|
|
|
} |
400
|
|
|
return $result; |
401
|
|
|
} |
402
|
|
|
|
403
|
|
|
/** |
404
|
|
|
* Return Group By clausule |
405
|
|
|
* |
406
|
|
|
* @return string |
407
|
|
|
*/ |
408
|
|
|
private function getGroupBy(): string |
409
|
|
|
{ |
410
|
|
|
$fields = $this->getGroupFields(); |
411
|
|
|
return empty($fields) ? '' : ' GROUP BY ' . $fields; |
412
|
|
|
} |
413
|
|
|
|
414
|
|
|
/** |
415
|
|
|
* Return Group By fields |
416
|
|
|
* |
417
|
|
|
* @return string |
418
|
|
|
*/ |
419
|
|
|
protected function getGroupFields(): string |
420
|
|
|
{ |
421
|
|
|
return ''; |
422
|
|
|
} |
423
|
|
|
|
424
|
|
|
/** |
425
|
|
|
* Convert an array of filters order by in string. |
426
|
|
|
* |
427
|
|
|
* @param array $order |
428
|
|
|
* |
429
|
|
|
* @return string |
430
|
|
|
*/ |
431
|
|
|
private function getOrderBy(array $order): string |
432
|
|
|
{ |
433
|
|
|
$result = ''; |
434
|
|
|
$coma = ' ORDER BY '; |
435
|
|
|
foreach ($order as $key => $value) { |
436
|
|
|
$result .= $coma . $key . ' ' . $value; |
437
|
|
|
$coma = ', '; |
438
|
|
|
} |
439
|
|
|
return $result; |
440
|
|
|
} |
441
|
|
|
|
442
|
|
|
/** |
443
|
|
|
* If a value is reported for the PK create a database where for |
444
|
|
|
* the master key of the master model. |
445
|
|
|
* |
446
|
|
|
* @param string $cod |
447
|
|
|
* @param array $where |
448
|
|
|
* |
449
|
|
|
* @return bool |
450
|
|
|
*/ |
451
|
|
|
private function loadFilterWhere($cod, array &$where): bool |
452
|
|
|
{ |
453
|
|
|
// If there is no search by code we use the where informed |
454
|
|
|
if (empty($cod)) { |
455
|
|
|
return true; |
456
|
|
|
} |
457
|
|
|
|
458
|
|
|
// If dont define master model cant load from code |
459
|
|
|
if (!isset($this->masterModel)) { |
460
|
|
|
return false; |
461
|
|
|
} |
462
|
|
|
|
463
|
|
|
// Search primary key from field list |
464
|
|
|
$primaryColumn = $this->masterModel->primaryColumn(); |
465
|
|
|
foreach ($this->getFields() as $field => $sqlField) { |
466
|
|
|
if ($field == $primaryColumn) { |
467
|
|
|
$where = [new DataBaseWhere($sqlField, $cod)]; |
468
|
|
|
return true; |
469
|
|
|
} |
470
|
|
|
} |
471
|
|
|
|
472
|
|
|
// The PK field is not defined in the field list. No posible search by PK |
473
|
|
|
return false; |
474
|
|
|
} |
475
|
|
|
|
476
|
|
|
/** |
477
|
|
|
* Assign the values of the $data array to the model view properties. |
478
|
|
|
* |
479
|
|
|
* @param array $data |
480
|
|
|
*/ |
481
|
|
|
protected function loadFromData(array $data) |
482
|
|
|
{ |
483
|
|
|
foreach ($data as $field => $value) { |
484
|
|
|
$this->values[$field] = $value; |
485
|
|
|
} |
486
|
|
|
} |
487
|
|
|
|
488
|
|
|
/** |
489
|
|
|
* Sets the master model for data operations |
490
|
|
|
* |
491
|
|
|
* @param ModelClass $model |
492
|
|
|
*/ |
493
|
|
|
protected function setMasterModel($model) |
494
|
|
|
{ |
495
|
|
|
$this->masterModel = $model; |
496
|
|
|
} |
497
|
|
|
|
498
|
|
|
/** |
499
|
|
|
* @return ToolBox |
500
|
|
|
* @deprecated since version 2023.1 |
501
|
|
|
*/ |
502
|
|
|
protected function toolBox(): ToolBox |
503
|
|
|
{ |
504
|
|
|
return new ToolBox(); |
|
|
|
|
505
|
|
|
} |
506
|
|
|
} |
507
|
|
|
|