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<?php |
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namespace HexMakina\TightORM; |
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use HexMakina\BlackBox\Database\SelectInterface; |
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use HexMakina\BlackBox\ORM\ModelInterface; |
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use HexMakina\Traitor\Traitor; |
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abstract class TightModel extends TableModel implements ModelInterface |
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{ |
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use Traitor; |
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public function __toString() |
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{ |
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return static::class_short_name() . ' #' . $this->id(); |
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} |
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public function nid(): string |
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{ |
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return static::class_short_name(); |
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} |
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public function urn(): string |
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{ |
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return $this->nid() . ':' . $this->id(); |
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} |
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public function immortal(): bool |
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{ |
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return self::IMMORTAL_BY_DEFAULT; |
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} |
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// creates new instance, copy data from $this |
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// does not copy fields with default and AI field |
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public function copy() |
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{ |
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$class = get_called_class(); |
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$clone = new $class(); |
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foreach ($class::table()->columns() as $column_name => $column) { |
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if (!is_null($column->default())) { |
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continue; |
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} |
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if ($column->isAutoIncremented()) { |
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continue; |
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} |
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$clone->set($column_name, $this->get($column_name)); |
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} |
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// TODO: assuming created_by, must be a function that returns the creation tracking field, make an interface for heaven's sake |
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unset($clone->created_by); |
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return $clone; |
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} |
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public function validate(): array |
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{ |
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return []; // no errors |
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} |
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public function before_save(): array |
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{ |
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return []; |
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} |
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public function after_save() |
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{ |
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return true; |
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} |
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// return array of errors on failure |
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// updates the model on success |
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public function save($operator_id) |
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{ |
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try { |
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// errors detection befire saving |
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$errors = []; |
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if (empty($errors = $this->traitor('before_save'))) { |
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if (empty($errors = $this->before_save())) { |
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$errors = $this->validate(); |
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} |
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} |
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if (!empty($errors)) { |
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return $errors; |
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} |
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// a tight model *always* match a single table row |
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$table_row = $this->to_table_row($operator_id); |
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if ($table_row->isAltered()) { // someting to save ? |
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$errors = $table_row->persist(); |
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if (!empty($errors)) { |
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return $errors; |
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} |
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$refreshed_row = static::table()->restore($table_row->export()); |
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$this->import($refreshed_row->export()); |
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} |
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$this->traitor('after_save'); |
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$this->after_save(); |
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} catch (\Exception $e) { |
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return [$e->getMessage()]; |
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} |
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return []; |
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} |
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// returns false on failure or last executed delete query |
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public function before_destroy(): bool |
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{ |
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if ($this->isNew() || $this->immortal()) { |
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return false; |
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} |
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$this->traitor(__FUNCTION__); |
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return true; |
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} |
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public function after_destroy() |
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{ |
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$this->traitor(__FUNCTION__); |
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} |
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public function destroy($operator_id): bool |
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{ |
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if ($this->before_destroy() === false) { |
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return false; |
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} |
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$table_row = static::table()->restore(get_object_vars($this)); |
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if ($table_row->wipe() === false) { |
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return false; |
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} |
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$this->after_destroy(); |
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return true; |
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} |
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//------------------------------------------------------------ Data Retrieval |
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public static function filter($filters = [], $options = []): SelectInterface |
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{ |
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$class = static::class; |
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$query = (new TightModelSelector(new $class()))->select($filters, $options); |
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return $query; |
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} |
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//------------------------------------------------------------ Introspection & Data Validation |
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/** |
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* Cascade of table name guessing goes: |
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* 1. Constant 'TABLE_ALIAS' defined in class |
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* 2. lower-case class name |
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* |
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*/ |
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public static function tableAlias(): string |
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{ |
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if (defined(get_called_class() . '::TABLE_ALIAS')) { |
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return get_called_class()::TABLE_ALIAS; |
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} |
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return static::model_type(); |
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} |
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public static function model_type(): string |
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{ |
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if (defined(get_called_class() . '::MODEL_TYPE')) { |
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return get_called_class()::MODEL_TYPE; |
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} |
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return strtolower(self::class_short_name()); |
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} |
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public static function class_short_name(): string |
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{ |
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return (new \ReflectionClass(get_called_class()))->getShortName(); |
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} |
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public static function selectAlso() |
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{ |
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return ['*']; |
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} |
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} |
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