Merge branch 'master' of github.com:doctrine/doctrine2

lib/Doctrine/ORM/Mapping/Driver/AnnotationDriver.php

@@ -495,18 +495,20 @@ public function getAllClassNames()
                 throw MappingException::fileMappingDriversRequireConfiguredDirectoryPath($path);
             }
 
-            $iterator = new \RecursiveIteratorIterator(
-                new \RecursiveDirectoryIterator($path),
-                \RecursiveIteratorIterator::LEAVES_ONLY
+            $iterator = new \RegexIterator(
+                new \RecursiveIteratorIterator(
+                    new \RecursiveDirectoryIterator($path, \FilesystemIterator::SKIP_DOTS),
+                    \RecursiveIteratorIterator::LEAVES_ONLY
+                ),
+                '/^.+\\' . $this->_fileExtension . '$/i', 
+                \RecursiveRegexIterator::GET_MATCH
             );
-
+            
             foreach ($iterator as $file) {
-                if (($fileName = $file->getBasename($this->_fileExtension)) == $file->getBasename()) {
-                    continue;
-                }
-
-                $sourceFile = realpath($file->getPathName());
+                $sourceFile = realpath($file[0]);
+
                 require_once $sourceFile;
+
                 $includedFiles[] = $sourceFile;
             }
         }

lib/Doctrine/ORM/Query/AST/CoalesceExpression.php

@@ -0,0 +1,47 @@
+<?php
+/*
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\ORM\Query\AST;
+
+/**
+ * CoalesceExpression ::= "COALESCE" "(" ScalarExpression {"," ScalarExpression}* ")"
+ *
+ * @since   2.1
+ * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @link    www.doctrine-project.org
+ * @author  Benjamin Eberlei <kontakt@beberlei.de>
+ * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
+ * @author  Jonathan Wage <jonwage@gmail.com>
+ * @author  Roman Borschel <roman@code-factory.org>
+ */
+class CoalesceExpression extends Node
+{
+    public $scalarExpressions = array();
+
+
+    public function __construct(array $scalarExpressions)
+    {
+        $this->scalarExpressions  = $scalarExpressions;
+    }    
+
+    public function dispatch($sqlWalker)
+    {
+        return $sqlWalker->walkCoalesceExpression($this);
+    }
+}

lib/Doctrine/ORM/Query/AST/FromClause.php

@@ -1,7 +1,5 @@
 <?php
 /*
- *  $Id$
- *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
@@ -27,7 +25,6 @@
  * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
  * @link    www.doctrine-project.org
  * @since   2.0
- * @version $Revision: 3938 $
  * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
  * @author  Jonathan Wage <jonwage@gmail.com>
  * @author  Roman Borschel <roman@code-factory.org>

lib/Doctrine/ORM/Query/AST/NullIfExpression.php

@@ -0,0 +1,49 @@
+<?php
+/*
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\ORM\Query\AST;
+
+/**
+ * NullIfExpression ::= "NULLIF" "(" ScalarExpression "," ScalarExpression ")"
+ *
+ * @since   2.1
+ * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @link    www.doctrine-project.org
+ * @author  Benjamin Eberlei <kontakt@beberlei.de>
+ * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
+ * @author  Jonathan Wage <jonwage@gmail.com>
+ * @author  Roman Borschel <roman@code-factory.org>
+ */
+class NullIfExpression extends Node
+{
+    public $firstExpression;
+
+    public $secondExpression;
+
+    public function __construct($firstExpression, $secondExpression)
+    {
+        $this->firstExpression  = $firstExpression;
+        $this->secondExpression = $secondExpression;
+    }    
+
+    public function dispatch($sqlWalker)
+    {
+        return $sqlWalker->walkNullIfExpression($this);
+    }
+}

lib/Doctrine/ORM/Query/Parser.php

@@ -1644,6 +1644,10 @@ public function ScalarExpression()
             return $this->StateFieldPathExpression();
         } else if ($lookahead == Lexer::T_INTEGER || $lookahead == Lexer::T_FLOAT) {
             return $this->SimpleArithmeticExpression();
+        } else if ($lookahead == Lexer::T_CASE || $lookahead == Lexer::T_COALESCE || $lookahead == Lexer::T_NULLIF) {
+            // Since NULLIF and COALESCE can be identified as a function, 
+            // we need to check if before check for FunctionDeclaration
+            return $this->CaseExpression();
         } else if ($this->_isFunction() || $this->_isAggregateFunction($this->_lexer->lookahead['type'])) {
             // We may be in an ArithmeticExpression (find the matching ")" and inspect for Math operator)
             $this->_lexer->peek(); // "("
@@ -1665,20 +1669,73 @@ public function ScalarExpression()
         } else if ($lookahead == Lexer::T_TRUE || $lookahead == Lexer::T_FALSE) {
             $this->match($lookahead);
             return new AST\Literal(AST\Literal::BOOLEAN, $this->_lexer->token['value']);
-        } else if ($lookahead == Lexer::T_CASE || $lookahead == Lexer::T_COALESCE || $lookahead == Lexer::T_NULLIF) {
-            return $this->CaseExpression();
         } else {
             $this->syntaxError();
         }
     }
 
     public function CaseExpression()
     {
+        $lookahead = $this->_lexer->lookahead['type'];
+
         // if "CASE" "WHEN" => GeneralCaseExpression
         // else if "CASE" => SimpleCaseExpression
-        // else if "COALESCE" => CoalesceExpression
-        // else if "NULLIF" => NullifExpression
-        $this->semanticalError('CaseExpression not yet supported.');
+        // [DONE] else if "COALESCE" => CoalesceExpression
+        // [DONE] else if "NULLIF" => NullifExpression
+        switch ($lookahead) {
+            case Lexer::T_NULLIF:
+                return $this->NullIfExpression();
+
+            case Lexer::T_COALESCE:
+                return $this->CoalesceExpression();
+
+            default:
+                $this->semanticalError('CaseExpression not yet supported.');
+                return null;
+        }
+    }
+
+    /**
+     * CoalesceExpression ::= "COALESCE" "(" ScalarExpression {"," ScalarExpression}* ")"
+     * 
+     * @return Doctrine\ORM\Query\AST\CoalesceExpression 
+     */
+    public function CoalesceExpression()
+    {
+        $this->match(Lexer::T_COALESCE);
+        $this->match(Lexer::T_OPEN_PARENTHESIS);
+
+        // Process ScalarExpressions (1..N)
+        $scalarExpressions = array();
+        $scalarExpressions[] = $this->ScalarExpression();
+
+        while ($this->_lexer->isNextToken(Lexer::T_COMMA)) {
+            $this->match(Lexer::T_COMMA);
+            $scalarExpressions[] = $this->ScalarExpression();
+        }
+
+        $this->match(Lexer::T_CLOSE_PARENTHESIS);
+
+        return new AST\CoalesceExpression($scalarExpressions);
+    }
+
+    /**
+     * NullIfExpression ::= "NULLIF" "(" ScalarExpression "," ScalarExpression ")"
+     * 
+     * @return Doctrine\ORM\Query\AST\ExistsExpression 
+     */
+    public function NullIfExpression()
+    {
+        $this->match(Lexer::T_NULLIF);
+        $this->match(Lexer::T_OPEN_PARENTHESIS);
+
+        $firstExpression = $this->ScalarExpression();
+        $this->match(Lexer::T_COMMA);
+        $secondExpression = $this->ScalarExpression();
+
+        $this->match(Lexer::T_CLOSE_PARENTHESIS);
+
+        return new AST\NullIfExpression($firstExpression, $secondExpression);
     }
 
     /**
@@ -1717,12 +1774,16 @@ public function SelectExpression()
             }
         } else if ($this->_isFunction()) {
             $this->_lexer->peek(); // "("
-            $beyond = $this->_peekBeyondClosingParenthesis();
-
+
+            $lookaheadType = $this->_lexer->lookahead['type'];
+            $beyond        = $this->_peekBeyondClosingParenthesis();
+
             if ($this->_isMathOperator($beyond)) {
                 $expression = $this->ScalarExpression();
             } else if ($this->_isAggregateFunction($this->_lexer->lookahead['type'])) {
                 $expression = $this->AggregateExpression();
+            } else if (in_array ($lookaheadType, array(Lexer::T_CASE, Lexer::T_COALESCE, Lexer::T_NULLIF))) {
+                $expression = $this->CaseExpression();
             } else {
                 // Shortcut: ScalarExpression => Function
                 $expression = $this->FunctionDeclaration();

lib/Doctrine/ORM/Query/SqlWalker.php

@@ -873,6 +873,60 @@ public function walkJoinVariableDeclaration($joinVarDecl)
 
         return $sql;
     }
+
+    /**
+     * Walks down a CoalesceExpression AST node and generates the corresponding SQL.
+     *
+     * @param CoalesceExpression $coalesceExpression
+     * @return string The SQL.
+     */
+    public function walkCoalesceExpression($coalesceExpression)
+    {
+        $sql = 'COALESCE(';
+
+        $scalarExpressions = array();
+
+        foreach ($coalesceExpression->scalarExpressions as $scalarExpression) {
+            $scalarExpressions[] = $this->walkSimpleArithmeticExpression($scalarExpression);
+        }
+
+        $sql .= implode(', ', $scalarExpressions) . ')';
+
+        return $sql;
+    }
+
+    public function walkCaseExpression($expression)
+    {
+        switch (true) {
+            case ($expression instanceof AST\CoalesceExpression):
+                return $this->walkCoalesceExpression($expression);
+
+            case ($expression instanceof AST\NullIfExpression):
+                return $this->walkNullIfExpression($expression);
+
+            default:
+                return '';
+        }
+    }
+
+    /**
+     * Walks down a NullIfExpression AST node and generates the corresponding SQL.
+     *
+     * @param NullIfExpression $nullIfExpression
+     * @return string The SQL.
+     */
+    public function walkNullIfExpression($nullIfExpression)
+    {
+        $firstExpression = is_string($nullIfExpression->firstExpression) 
+            ? $this->_conn->quote($nullIfExpression->firstExpression)
+            : $this->walkSimpleArithmeticExpression($nullIfExpression->firstExpression);
+
+        $secondExpression = is_string($nullIfExpression->secondExpression) 
+            ? $this->_conn->quote($nullIfExpression->secondExpression)
+            : $this->walkSimpleArithmeticExpression($nullIfExpression->secondExpression);
+
+        return 'NULLIF(' . $firstExpression . ', ' . $secondExpression . ')';
+    }
 
     /**
      * Walks down a SelectExpression AST node and generates the corresponding SQL.
@@ -956,8 +1010,7 @@ public function walkSelectExpression($selectExpression)
 
             $columnAlias = $this->_platform->getSQLResultCasing($columnAlias);
             $this->_rsm->addScalarResult($columnAlias, $resultAlias);
-        }
-        else if (
+        } else if (
             $expr instanceof AST\SimpleArithmeticExpression ||
             $expr instanceof AST\ArithmeticTerm ||
             $expr instanceof AST\ArithmeticFactor ||
@@ -971,11 +1024,32 @@ public function walkSelectExpression($selectExpression)
             }
 
             $columnAlias = 'sclr' . $this->_aliasCounter++;
+
             if ($expr instanceof AST\Literal) {
                 $sql .= $this->walkLiteral($expr) . ' AS ' .$columnAlias;
             } else {
                 $sql .= $this->walkSimpleArithmeticExpression($expr) . ' AS ' . $columnAlias;
             }
+
+            $this->_scalarResultAliasMap[$resultAlias] = $columnAlias;
+
+            $columnAlias = $this->_platform->getSQLResultCasing($columnAlias);
+            $this->_rsm->addScalarResult($columnAlias, $resultAlias);
+        } else if (
+            $expr instanceof AST\NullIfExpression ||
+            $expr instanceof AST\CoalesceExpression ||
+            $expr instanceof AST\CaseExpression
+        ) {
+            if ( ! $selectExpression->fieldIdentificationVariable) {
+                $resultAlias = $this->_scalarResultCounter++;
+            } else {
+                $resultAlias = $selectExpression->fieldIdentificationVariable;
+            }
+
+            $columnAlias = 'sclr' . $this->_aliasCounter++;
+
+            $sql .= $this->walkCaseExpression($expr) . ' AS ' . $columnAlias;
+
             $this->_scalarResultAliasMap[$resultAlias] = $columnAlias;
 
             $columnAlias = $this->_platform->getSQLResultCasing($columnAlias);

tests/Doctrine/Tests/ORM/Query/LanguageRecognitionTest.php

@@ -570,6 +570,16 @@ public function testSizeOfForeignKeyManyToManyPrimaryKeyEntity()
     {
         $this->assertValidDQL("SELECT e, t FROM Doctrine\Tests\Models\DDC117\DDC117Editor e JOIN e.reviewingTranslations t WHERE SIZE(e.reviewingTranslations) > 0");
     }
+
+    public function testCaseSupportContainingNullIfExpression()
+    {
+        $this->assertValidDQL("SELECT u.id, NULLIF(u.name, u.name) AS shouldBeNull FROM Doctrine\Tests\Models\CMS\CmsUser u");
+    }
+
+    public function testCaseSupportContainingCoalesceExpression()
+    {
+        $this->assertValidDQL("select COALESCE(NULLIF(u.name, ''), u.username) as Display FROM Doctrine\Tests\Models\CMS\CmsUser u");
+    }
 }
 
 /** @Entity */

tests/Doctrine/Tests/ORM/Query/SelectSqlGenerationTest.php

@@ -906,6 +906,22 @@ public function testGroupByIdentificationVariable()
             'SELECT c0_.id AS id0, c0_.name AS name1, count(c1_.id) AS sclr2 FROM cms_groups c0_ INNER JOIN cms_users_groups c2_ ON c0_.id = c2_.group_id INNER JOIN cms_users c1_ ON c1_.id = c2_.user_id GROUP BY c0_.id'
         );
     }
+
+    public function testCaseContainingNullIf()
+    {
+        $this->assertSqlGeneration(
+            "SELECT NULLIF(g.id, g.name) AS NullIfEqual FROM Doctrine\Tests\Models\CMS\CmsGroup g",
+            'SELECT NULLIF(c0_.id, c0_.name) AS sclr0 FROM cms_groups c0_'
+        );
+    }
+
+    public function testCaseContainingCoalesce()
+    {
+        $this->assertSqlGeneration(
+            "SELECT COALESCE(NULLIF(u.name, ''), u.username) as Display FROM Doctrine\Tests\Models\CMS\CmsUser u",
+            "SELECT COALESCE(NULLIF(c0_.name, ''), c0_.username) AS sclr0 FROM cms_users c0_"
+        );
+    }
 }