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<?php |
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/** |
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* Author: Nil Portugués Calderó <[email protected]> |
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* Date: 6/4/14 |
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* Time: 12:02 AM. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace NilPortugues\Sql\QueryBuilder\Builder\Syntax; |
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/** |
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* Class PlaceholderWriter. |
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*/ |
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class PlaceholderWriter |
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{ |
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/** |
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* @var int |
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*/ |
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protected $counter = 1; |
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/** |
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* @var array |
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*/ |
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protected $placeholders = []; |
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/** |
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* @return array |
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*/ |
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public function get() |
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{ |
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return $this->placeholders; |
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} |
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/** |
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* @return $this |
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*/ |
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public function reset() |
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{ |
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$this->counter = 1; |
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$this->placeholders = []; |
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return $this; |
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} |
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/** |
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* @param $value |
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* |
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* @return string |
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*/ |
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public function add($value) |
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{ |
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$placeholderKey = ':v'.$this->counter; |
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$this->placeholders[$placeholderKey] = $this->setValidSqlValue($value); |
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++$this->counter; |
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return $placeholderKey; |
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} |
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/** |
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* @param $value |
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* |
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* @return string |
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*/ |
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protected function setValidSqlValue($value) |
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{ |
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$value = $this->writeNullSqlString($value); |
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$value = $this->writeStringAsSqlString($value); |
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$value = $this->writeBooleanSqlString($value); |
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return $value; |
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} |
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/** |
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* @param $value |
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* |
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* @return string |
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*/ |
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protected function writeNullSqlString($value) |
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{ |
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if (\is_null($value) || (\is_string($value) && empty($value))) { |
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$value = $this->writeNull(); |
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} |
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return $value; |
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} |
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/** |
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* @return string |
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*/ |
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protected function writeNull() |
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{ |
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return 'NULL'; |
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} |
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/** |
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* @param string $value |
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* |
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* @return string |
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*/ |
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protected function writeStringAsSqlString($value) |
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{ |
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if (\is_string($value)) { |
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$value = $this->writeString($value); |
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} |
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return $value; |
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} |
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/** |
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* @param string $value |
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* |
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* @return string |
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*/ |
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protected function writeString($value) |
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{ |
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return $value; |
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} |
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/** |
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* @param string $value |
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* |
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* @return string |
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*/ |
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protected function writeBooleanSqlString($value) |
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{ |
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if (\is_bool($value)) { |
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$value = $this->writeBoolean($value); |
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} |
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return $value; |
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} |
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/** |
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* @param bool $value |
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* |
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* @return string |
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*/ |
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protected function writeBoolean($value) |
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{ |
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$value = \filter_var($value, FILTER_VALIDATE_BOOLEAN); |
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return ($value) ? '1' : '0'; |
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} |
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} |
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nilportugues /
sql-query-builder
