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<?php |
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namespace Germania\Salesmen; |
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use Psr\Container\ContainerInterface; |
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use Germania\Salesmen\Exceptions\SalesmanNotFoundException; |
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use Germania\Salesmen\Exceptions\SalesmanDatabaseException; |
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class PdoAllSalesmen implements ContainerInterface, \IteratorAggregate, \Countable |
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{ |
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/** |
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* @var \PDO |
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*/ |
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public $pdo; |
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/** |
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* @var string |
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*/ |
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public $php_salesman_class; |
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/** |
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* @var string |
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*/ |
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public $table = "salesmen"; |
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/** |
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* Holds all retrieved SalesmenInterface instances |
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* @var SalesmanInterface[] |
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*/ |
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public $salesmen = array(); |
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/** |
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* @param \PDO $pdo PDO handler |
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* @param string $table The table name to use |
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* @param SalesmanInterface|null $salesman Class or object template to work with |
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*/ |
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public function __construct (\PDO $pdo, $table, SalesmanInterface $salesman = null) |
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{ |
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$this->table = $table; |
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$this->pdo = $pdo; |
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$this->php_salesman_class = $salesman ? get_class($salesman) : Salesman::class; |
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// aussendienst_nummer ID is listed twice here in order to use it with FETCH_UNIQUE as array key |
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$sql = "SELECT |
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aussendienst_nummer, |
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aussendienst_nummer AS salesman_id, |
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aussendienst_vorname AS first_name, |
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aussendienst_nachname AS last_name, |
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aussendienst_retailer_number AS retailer_number, |
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aussendienst_email AS email, |
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user_id, |
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is_active |
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FROM {$this->table} |
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WHERE 1 |
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ORDER BY |
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aussendienst_nachname ASC, |
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aussendienst_vorname ASC, |
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aussendienst_nummer ASC"; |
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$this->stmt = $pdo->prepare( $sql ); |
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$this->stmt->setFetchMode( \PDO::FETCH_CLASS, $this->php_salesman_class ); |
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if (!$this->stmt->execute()): |
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throw new SalesmanDatabaseException("PdoAllSalesmen: Could not execute SQL query"); |
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endif; |
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$this->salesmen = $this->stmt->fetchAll( \PDO::FETCH_UNIQUE); |
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} |
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/** |
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* @return array |
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*/ |
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public function __debugInfo() { |
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return [ |
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'DatabaseTable' => $this->table, |
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'NumberOfSalesmen' => $this->count(), |
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'SalesmanClass' => $this->php_salesman_class |
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]; |
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} |
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/** |
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* @implements ContainerInterface |
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*/ |
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public function has ($aussendienst_nummer) { |
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if ($aussendienst_nummer instanceOf SalesmanIdProviderInterface) { |
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$aussendienst_nummer = $aussendienst_nummer->getSalesmanId(); |
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} |
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return array_key_exists($aussendienst_nummer, $this->salesmen); |
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} |
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/** |
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* @implements ContainerInterface |
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*/ |
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public function get ($aussendienst_nummer) { |
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if ($aussendienst_nummer instanceOf SalesmanIdProviderInterface) { |
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$aussendienst_nummer = $aussendienst_nummer->getSalesmanId(); |
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} |
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if (!$this->has($aussendienst_nummer)) { |
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$msg = sprintf("Could not find Salesman with ADM-Nummer '%s'", $aussendienst_nummer); |
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throw new SalesmanNotFoundException( $msg ); |
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} |
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return $this->salesmen[$aussendienst_nummer]; |
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} |
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/** |
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* @return Iterator |
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*/ |
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public function getIterator() |
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{ |
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return new \ArrayIterator( $this->salesmen ); |
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} |
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/** |
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* @return int |
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*/ |
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public function count() |
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{ |
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return count( $this->salesmen ); |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: