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<?php |
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namespace Source\Core; |
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abstract class Model |
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{ |
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/** @var object|null */ |
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protected $data; |
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/** @var \PDOException|null */ |
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protected $fail; |
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/** @var string|null */ |
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protected $error; |
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/** @var string */ |
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protected $query; |
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/** @var string */ |
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protected $params; |
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/** @var string */ |
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/** @var string */ |
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protected $order; |
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/** @var int */ |
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protected $limit; |
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/** @var int */ |
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protected $offset; |
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/** @var string $entity database table */ |
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protected static $entity; |
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/** @var array $protected no update or create */ |
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protected static $protected; |
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/** @var array $entity database table */ |
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protected static $required; |
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/** |
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* Model constructor. |
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* @param string $entity database table name |
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* @param array $protected table protected columns |
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* @param array $required table required columns |
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*/ |
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public function __construct(string $entity, array $protected, array $required) |
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{ |
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self::$entity = $entity; |
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self::$protected = array_merge($protected, ['created_at', "updated_at"]); |
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self::$required = $required; |
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} |
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/** |
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* @param $name |
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* @param $value |
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*/ |
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public function __set($name, $value) |
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{ |
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if (empty($this->data)) { |
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$this->data = new \stdClass(); |
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} |
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$this->data->$name = $value; |
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} |
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/** |
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* @param $name |
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* @return bool |
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*/ |
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public function __isset($name) |
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{ |
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return isset($this->data->$name); |
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} |
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/** |
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* @param $name |
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* @return null |
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*/ |
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public function __get($name) |
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{ |
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return ($this->data->$name ?? null); |
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} |
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/** |
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* @return null|object |
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*/ |
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public function data(): ?object |
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{ |
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return $this->data; |
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} |
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/** |
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* @return \PDOException |
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*/ |
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public function fail(): ?\PDOException |
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{ |
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return $this->fail; |
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} |
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/** |
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* @return null|string |
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*/ |
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public function message(): ?string |
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{ |
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return $this->error; |
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} |
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/** |
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* @param |
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* @return Model|mixed |
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*/ |
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public function find(?string $terms = null, ?string $params = null, string $columns = "*") |
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{ |
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if ($terms) { |
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$this->query = "SELECT {$columns} FROM " . static::$entity . " WHERE {$terms}"; |
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parse_str($params, $this->params); |
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return $this; |
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} |
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$this->query = "SELECT {$columns} FROM " . static::$entity; |
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return $this; |
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} |
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/** |
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* @param int $id |
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* @param string $columns |
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* @return null|mixed|Model |
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*/ |
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public function findById(int $id, string $columns = "*"): ?Model |
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{ |
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$find = $this->find("id = :id", "id={$id}", $columns); |
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return $find->fetch(); |
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} |
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public function findAll(int $limit = null, int $offset = null): ?array |
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{ |
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$find = $this->find(); |
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if (!empty($limit)) { |
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$find = $find->limit($limit); |
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} |
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if (!empty($offset)) { |
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$find = $find->offset($offset); |
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} |
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$find = $find->fetch(true); |
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if (empty($find)) { |
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return null; |
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} |
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$return = []; |
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foreach ($find as $key => $value) { |
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$return[] = $value->data(); |
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} |
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return $return; |
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} |
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public function order(string $columnOrder): Model |
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{ |
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$this->order = " ORDER BY {$columnOrder}"; |
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return $this; |
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} |
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public function limit(int $limit): Model |
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{ |
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$this->limit = " LIMIT {$limit}"; |
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return $this; |
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} |
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public function offset(int $offset): Model |
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{ |
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$this->offset = " OFFSET {$offset}"; |
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return $this; |
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} |
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public function fetch(bool $all = false) |
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{ |
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try { |
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$stmt = Connect::getInstance()->prepare($this->query . $this->order . $this->limit . $this->offset); |
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$stmt->execute($this->params); |
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if (!$stmt->rowCount()) { |
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return null; |
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} |
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if ($all) { |
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return $stmt->fetchAll(\PDO::FETCH_CLASS, static::class); |
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} |
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return $stmt->fetchObject(static::class); |
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} catch (\PDOException $exception) { |
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$this->fail = $exception; |
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return null; |
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} |
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} |
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public function count(string $key = "id"): int |
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{ |
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$stmt = Connect::getInstance()->prepare($this->query); |
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$stmt->execute($this->params); |
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return $stmt->rowCount(); |
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} |
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public function rawQuery(string $query): self |
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{ |
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$this->query = $query; |
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return $this; |
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} |
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/** |
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* @param string $entity |
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* @param array $data |
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* @return int|null |
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*/ |
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protected function create(array $data): ?int |
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{ |
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try { |
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$columns = implode(", ", array_keys($data)); |
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$values = ":" . implode(", :", array_keys($data)); |
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$stmt = Connect::getInstance()->prepare("INSERT INTO " . static::$entity . " ({$columns}) VALUES ({$values})"); |
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$stmt->execute($this->filter($data)); |
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return Connect::getInstance()->lastInsertId(); |
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} catch (\PDOException $exception) { |
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$this->fail = $exception; |
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return null; |
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} |
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} |
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/** |
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* @param string $entity |
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* @param array $data |
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* @param string $terms |
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* @param string $params |
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* @return int|null |
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*/ |
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protected function update(array $data, string $terms, string $params): ?int |
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{ |
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try { |
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$dateSet = []; |
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foreach ($data as $bind => $value) { |
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$dateSet[] = "{$bind} = :{$bind}"; |
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} |
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$dateSet = implode(", ", $dateSet); |
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parse_str($params, $params); |
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$stmt = Connect::getInstance()->prepare("UPDATE " . static::$entity . " SET {$dateSet} WHERE {$terms}"); |
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$stmt->execute($this->filter(array_merge($data, $params))); |
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return ($stmt->rowCount() ?? 1); |
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} catch (\PDOException $exception) { |
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$this->fail = $exception; |
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return null; |
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} |
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} |
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public function delete(string $key, string $value): bool |
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{ |
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try { |
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$stmt = Connect::getInstance()->prepare("DELETE FROM " . static::$entity . " WHERE {$key} = :key"); |
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$stmt->bindValue("key", $value, \PDO::PARAM_STR); |
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$stmt->execute(); |
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return true; |
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} catch (\PDOException $exception) { |
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$this->fail = $exception; |
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return false; |
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} |
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} |
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/** |
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* @return array|null |
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*/ |
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protected function safe(): ?array |
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{ |
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$safe = (array) $this->data; |
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foreach (static::$protected as $unset) { |
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unset($safe[$unset]); |
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} |
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return $safe; |
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} |
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/** |
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* @param array $data |
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* @return array|null |
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*/ |
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private function filter(array $data): ?array |
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{ |
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$filter = []; |
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foreach ($data as $key => $value) { |
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$filter[$key] = (is_null($value) ? null : filter_var($value, FILTER_DEFAULT)); |
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} |
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return $filter; |
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} |
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/** |
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* @return bool |
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*/ |
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protected function required(): bool |
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{ |
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$data = (array) $this->data(); |
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foreach (static::$required as $field) { |
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if (empty($data[$field])) { |
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return false; |
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} |
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} |
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return true; |
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} |
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public function getRequired(): array |
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{ |
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$data = []; |
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foreach (static::$required as $field) { |
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$data[] = $field; |
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} |
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return $data; |
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} |
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} |
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