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<?php |
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/** |
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* Phossa Project |
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* |
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* PHP version 5.4 |
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* |
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* @category Library |
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* @package Phossa2\Query |
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* @copyright Copyright (c) 2016 phossa.com |
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* @license http://mit-license.org/ MIT License |
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* @link http://www.phossa.com/ |
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*/ |
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/*# declare(strict_types=1); */ |
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namespace Phossa2\Query\Traits; |
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use Phossa2\Shared\Base\ObjectAbstract; |
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use Phossa2\Query\Interfaces\BuilderInterface; |
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use Phossa2\Query\Interfaces\StatementInterface; |
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/** |
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* StatementAbstract |
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* |
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* @package Phossa2\Query |
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* @author Hong Zhang <[email protected]> |
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* @see ObjectAbstract |
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* @see StatementInterface |
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* @version 2.0.0 |
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* @since 2.0.0 added |
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*/ |
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abstract class StatementAbstract extends ObjectAbstract implements StatementInterface |
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{ |
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use SettingsTrait, BuilderAwareTrait, PreviousTrait; |
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/** |
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* value bindings |
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* |
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* @var array |
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* @access protected |
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*/ |
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protected $bindings; |
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/** |
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* Statement type, 'SELECT' etc. |
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* |
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* @var string |
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* @access protected |
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*/ |
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protected $type = ''; |
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/** |
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* clause configs,[name => prefix] |
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* |
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* @var array |
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* @access protected |
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*/ |
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protected $configs = []; |
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/** |
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* Constructor |
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* |
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* @param BuilderInterface $builder |
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* @access public |
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*/ |
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public function __construct(BuilderInterface $builder) |
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{ |
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$this->setBuilder($builder); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getStatement(array $settings = [])/*# : string */ |
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{ |
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// combine settings |
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$settings = $this->combineSettings($settings); |
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// statements |
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$sql = []; |
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// build previous statement |
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if ($this->hasPrevious()) { |
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$sql[] = $this->getPrevious()->getStatement($settings); |
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} |
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// build current sql |
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$sql[] = $this->buildSql($settings); |
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// replace with ?, :name or real values |
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return $this->bindValues(join($settings['seperator'], $sql), $settings); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getBindings()/*# : array */ |
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{ |
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return $this->bindings; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function __toString()/*# : string */ |
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{ |
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return $this->getStatement([ |
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'positionedParam' => false, |
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'namedParam' => false, |
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]); |
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} |
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/** |
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* Combine builder/statement and provided settings |
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* |
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* @param array $settings statement specific settings |
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* @return array |
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* @access protected |
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*/ |
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protected function combineSettings(array $settings)/*# : array */ |
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{ |
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return array_replace( |
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$this->getBuilder()->getSettings(), // builder settings |
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$this->getBuilder()->getDialect()->dialectSettings(), // dialect |
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$settings, // user settings |
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$this->getSettings() // statement settings |
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); |
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} |
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/** |
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* Build SQL statement clauses |
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* |
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* @param array $settings |
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* @param string |
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* @access protected |
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*/ |
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protected function buildSql(array $settings)/*# : string */ |
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{ |
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$result = $this->type; |
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$settings['join'] = $settings['seperator'] . $settings['indent']; |
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foreach ($this->configs as $clause => $prefix) { |
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$method = 'build' . ucfirst(strtolower($clause)); |
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$result .= $this->{$method}($prefix, $settings); |
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} |
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return $result; |
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} |
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/** |
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* Replace placeholders in the sql with '?', ':named' or real value |
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* |
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* @param string $sql |
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* @param array $settings |
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* @return string |
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* @access protected |
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*/ |
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protected function bindValues(/*# string */ $sql, array $settings) |
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{ |
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// init bindings |
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$this->bindings = []; |
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// bind values |
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return $this->getBuilder()->getParameter() |
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->bindValues($sql, $this->bindings, $settings); |
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} |
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/** |
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* Set previous statement |
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* |
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* @param StatementInterface $stmt |
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* @return $this |
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* @access protected |
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*/ |
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protected function setPrevous(StatementInterface $stmt) |
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{ |
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$this->previous = $stmt; |
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return $this; |
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} |
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} |
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phossa2 /
query
