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<?php |
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namespace alkemann\h2l\traits; |
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use alkemann\h2l\Connections; |
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use alkemann\h2l\exceptions; |
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use alkemann\h2l\exceptions\ConfigMissing; |
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use alkemann\h2l\interfaces\Source; |
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/** |
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* Class Model |
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* |
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* Use this for prototyping only, use a real ORM for production stud |
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* |
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* Depends on \alkemann\h2l\Entity trait |
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* |
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* @property string $pk |
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* @property string $connection |
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* @property array $fields |
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* @property array $table |
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* @property array $data |
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* @package alkemann\h2l |
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*/ |
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trait Model |
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{ |
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/** |
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* @throws ConfigMissing |
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*/ |
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public static function db(): Source |
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{ |
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$name = isset(static::$connection) ? static::$connection : 'default'; |
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return Connections::get($name); |
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} |
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private static function pk(): string |
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{ |
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return isset(static::$pk) ? static::$pk : 'id'; |
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} |
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public function exists(): bool |
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{ |
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// @TODO set a "read from db" property? |
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$pk = static::pk(); |
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return isset($this->$pk) && $this->$pk; |
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} |
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private static function table(): string |
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{ |
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if (!isset(static::$table)) { |
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throw new ConfigMissing( |
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get_called_class() . ' is missing static::$table', |
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ConfigMissing::MISSING_TABLE |
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); |
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} |
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return static::$table; |
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} |
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/** |
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* @TODO throw exception instead of returning null of insert failed? |
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* @return null|static |
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*/ |
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public static function get($id, array $conditions = [], array $options = []) //: ?Model |
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{ |
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if (empty($conditions) === false) { |
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throw new \InvalidArgumentException("Conditions is not implemented on get"); |
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} |
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$pk = static::pk(); |
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$conditions[$pk] = $id; |
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$result = static::db()->one(static::table(), $conditions, $options); |
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if ($result) { |
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return new static($result); |
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} |
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return null; |
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} |
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/** |
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* Find all records matching $conditions, returns a generator |
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* |
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* @throws ConfigMissing |
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*/ |
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public static function find(array $conditions = [], array $options = []): \Generator |
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{ |
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$conditions = self::filterByFields($conditions); |
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$with = array_key_exists('with', $options) ? (array)$options['with'] : false; |
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unset($options['with']); |
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$result = static::db()->find(static::table(), $conditions, $options); |
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$pk = static::pk(); |
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$gen = function () use ($result, $pk, $with) { |
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foreach ($result as $row) { |
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$model = new static($row); |
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if ($with) { |
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$model->with(...$with); |
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} |
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$id = $row[$pk]; |
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yield $id => $model; |
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} |
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}; |
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return $gen(); |
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} |
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/** |
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* The implementation of this method will come from the Entity trait. |
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* |
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* @param string[] ...$relation_names list of names of relationships |
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* @return object Instance of class that uses this trait |
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*/ |
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abstract public function with(string ...$relation_names); |
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abstract public function reset(): void; |
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abstract public function data(array $data = null): array; |
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/** |
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* Find all records matching `$conditions`, returns an array with key being the pk value |
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* |
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* @throws ConfigMissing |
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*/ |
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public static function findAsArray(array $conditions = [], array $options = []): array |
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{ |
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$generator = static::find($conditions, $options); |
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return iterator_to_array($generator); |
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} |
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public static function fields(): ?array |
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{ |
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return isset(static::$fields) ? static::$fields : null; |
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} |
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private static function filterByFields(array $data): array |
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{ |
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$fields = static::fields(); |
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if (empty($fields) === false) { |
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$data = array_filter( |
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$data, |
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function ($key) use ($fields) { |
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return in_array($key, $fields); |
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}, |
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ARRAY_FILTER_USE_KEY |
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); |
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} |
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return $data; |
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} |
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/** |
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* @throws ConfigMissing |
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*/ |
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public function save(array $data = [], array $options = []): bool |
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{ |
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$pk = static::pk(); |
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$db = static::db(); |
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$table = static::table(); |
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if ($this->exists()) { |
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$id = $this->$pk; |
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$data = self::filterByFields($data); |
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unset($data[$pk]); |
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$rows = $db->update($table, [$pk => $id], $data, $options); |
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if (!$rows) { |
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return false; |
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} |
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} else { |
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$data += $this->data; |
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$data = self::filterByFields($data); |
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$id = $db->insert($table, $data, $options); |
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if (!$id) { |
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return false; |
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} |
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} |
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$result = $db->one($table, [$pk => $id]); |
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$this->reset(); |
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$this->data($result); |
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return true; |
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} |
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/** |
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* @throws exceptions\ConfigMissing |
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*/ |
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public function delete(array $options = []): bool |
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{ |
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$pk = static::pk(); |
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return static::db()->delete(static::table(), [$pk => $this->$pk], $options); |
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} |
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} |
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alkemann /
h2l
Loading history...
This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.