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<?php |
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/* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* This software consists of voluntary contributions made by many individuals |
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* and is licensed under the MIT license. For more information, see |
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* <http://www.doctrine-project.org>. |
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*/ |
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namespace Doctrine\ORM\Query\AST\Functions; |
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use Doctrine\ORM\Query\Lexer; |
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use Doctrine\ORM\Query\Parser; |
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use Doctrine\ORM\Query\SqlWalker; |
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use Doctrine\ORM\Query\AST\Functions\FunctionNode; |
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/** |
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* "ABS" "(" SimpleArithmeticExpression ")" |
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* |
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* |
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* @link www.doctrine-project.org |
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* @since 2.7 |
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* @author Mihail Kurshin <[email protected]> |
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*/ |
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class IsNullFunction extends FunctionNode |
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{ |
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/** |
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* @var Doctrine\ORM\Query\AST\Literal |
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*/ |
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private $isnull; |
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/** |
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* @override |
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* @inheritdoc |
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*/ |
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public function parse(Parser $parser) { |
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$parser->match(Lexer::T_IDENTIFIER); |
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$parser->match(Lexer::T_OPEN_PARENTHESIS); |
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$this->isnull = $parser->ArithmeticPrimary(); |
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$parser->match(Lexer::T_CLOSE_PARENTHESIS); |
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} |
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/** |
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* @override |
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* @inheritdoc |
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*/ |
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public function getSql(SqlWalker $sqlWalker) { |
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return 'ISNULL(' . $this->isnull->dispatch($sqlWalker) . ')'; |
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} |
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} |
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doctrine /
orm
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