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<?php |
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namespace CoffeeCode\DataLayer; |
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use PDO; |
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use PDOException; |
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use stdClass; |
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class DataLayer |
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{ |
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private $entity; |
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private $primary; |
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private $required; |
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protected $statement; |
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protected $params; |
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protected $order; |
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protected $limit; |
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protected $offset; |
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protected $fail; |
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protected $data; |
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public function __construct(string $entity, array $requiredFileds, string $primaryKey = 'id') |
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{ |
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$this->entity = $entity; |
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$this->primary = $primaryKey; |
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$this->required = $requiredFileds; |
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} |
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public function __set($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 = $value; |
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} |
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public function __isset($name) |
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{ |
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return isset($this->data->$name); |
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} |
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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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public function data(): ?object |
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{ |
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return $this->data; |
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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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public function find(?string $terms = null, ?string $params = null, string $columns = "*"): DataLayer |
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{ |
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if ($terms) { |
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$this->statement = "SELECT {$columns} FROM {$this->entity} WHERE {$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->statement = "SELECT {$columns} FROM {$this->entity}"; |
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return $this; |
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} |
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public function findById(int $id, string $columns = "*"): ?DataLayer |
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{ |
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$find = $this->find($this->primary . " = :id", "id={$id}", $columns); |
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return $find->fetch(); |
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} |
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public function order(string $columnOrder): ?DataLayer |
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{ |
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$this->order = " ORDER BY {$columnOrder}"; |
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return $this; |
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} |
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public function limit(int $limit): ?DataLayer |
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{ |
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$this->limit = " LIMIT {$limit}"; |
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return $this; |
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} |
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public function offset(int $offset): ?DataLayer |
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{ |
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$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->statement . $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 = $exception; |
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return null; |
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} |
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} |
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public function count(): int |
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{ |
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$stmt = Connect::getInstance()->prepare($this->statement); |
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$stmt->execute($this->params); |
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return $stmt->rowCount(); |
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} |
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} |
robsonvleite /
datalayer
