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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\Clause; |
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use Phossa2\Query\Interfaces\RawInterface; |
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use Phossa2\Query\Interfaces\ClauseInterface; |
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use Phossa2\Query\Interfaces\TemplateInterface; |
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use Phossa2\Query\Interfaces\StatementInterface; |
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/** |
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* ClauseTrait |
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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 ClauseInterface |
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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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trait ClauseTrait |
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{ |
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use QuoteTrait; |
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/** |
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* storage for clauses |
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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 $clause = []; |
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/** |
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* Is $str a raw sql string ? |
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* |
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* @param mixed $str |
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* @param bool $rawMode |
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* @access protected |
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*/ |
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protected function isRaw($str, /*# bool */ $rawMode)/*# : bool */ |
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{ |
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if ($rawMode) { |
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return true; |
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} |
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if (is_string($str)) { |
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return (bool) preg_match('/[^0-9a-zA-Z\$_.]/', $str); |
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} |
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return is_object($str) && $str instanceof RawInterface; |
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} |
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/** |
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* Quote an alias if not an int |
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* |
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* @param int|string $alias |
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* @param array $settings |
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* @return string |
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* @access protected |
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*/ |
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protected function quoteAlias($alias, array $settings)/*# : string */ |
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{ |
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$prefix = $settings['quotePrefix']; |
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$suffix = $settings['quoteSuffix']; |
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return is_int($alias) ? |
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'' : (' AS ' . $this->quoteSpace($alias, $prefix, $suffix)); |
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} |
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/** |
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* Quote an item if it is a field/column |
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* |
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* @param string|StatementInterface $item |
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* @param array $settings |
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* @param bool $rawMode |
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* @access protected |
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*/ |
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protected function quoteItem( |
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$item, |
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array $settings, |
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/*# bool */ $rawMode = false |
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)/*# : string */ { |
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// object |
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if (is_object($item)) { |
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return $this->quoteObject($item, $settings); |
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} |
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// string |
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return $rawMode ? (string) $item : |
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$this->quote($item, $settings['quotePrefix'], $settings['quoteSuffix']); |
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} |
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/** |
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* Quote object |
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* |
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* @param object $object |
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* @param array $settings |
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* @return string |
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* @access protected |
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*/ |
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protected function quoteObject($object, $settings)/*# : string */ |
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{ |
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if ($object instanceof StatementInterface) { |
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$settings = array_merge( |
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$settings, |
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['seperator' => ' ', 'indent' => ''] |
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); |
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return '(' . $object->getStatement($settings) . ')'; |
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} |
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if ($object instanceof TemplateInterface) { |
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return $object->getOutput($settings); |
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} |
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return (string) $object; |
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} |
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/** |
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* Return specific clause part |
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* |
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* @param string $clauseName |
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* @param array |
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* @access protected |
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*/ |
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protected function &getClause(/*# string */ $clauseName)/*# : array */ |
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{ |
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if (empty($clauseName)) { |
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return $this->clause; |
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} else { |
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if (!isset($this->clause[$clauseName])) { |
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$this->clause[$clauseName] = []; |
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} |
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return $this->clause[$clauseName]; |
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} |
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} |
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/** |
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* Quote string even space found |
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* |
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* @param string $str |
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* @param string $prefix |
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* @param string $suffix |
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* @return string |
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* @access protected |
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*/ |
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protected function quoteSpace( |
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/*# string */ $str, |
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/*# string */ $prefix, |
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/*# string */ $suffix |
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)/*# : string */ { |
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return sprintf('%s%s%s', $prefix, $str, $suffix); |
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} |
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/** |
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* Process value |
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* |
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* @param mixed $value |
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* @return string |
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* @access protected |
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*/ |
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protected function processValue($value)/*# : string */ |
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{ |
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// @TODO processValue |
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return (string) $value; |
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} |
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/** |
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* Join each clause |
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* |
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* @param string $prefix |
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* @param string $seperator |
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* @param array $clause |
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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 joinClause( |
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/*# : string */ $prefix, |
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/*# : string */ $seperator, |
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array $clause, |
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array $settings |
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)/*# : string */ { |
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if (empty($clause)) { |
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return ''; |
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} else { |
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$join = $settings['seperator'] . $settings['indent']; |
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$pref = empty($prefix) ? '' : ($prefix . $join); |
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return $settings['seperator'] . $pref . join($seperator . $join, $clause); |
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} |
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} |
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} |
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phossa2 /
query
