add insert query

lib/Doctrine/DBAL/Query/QueryBuilder.php

@@ -45,6 +45,7 @@ class QueryBuilder
     const SELECT = 0;
     const DELETE = 1;
     const UPDATE = 2;
+    const INSERT = 3;
 
     /*
      * The builder states.
@@ -70,7 +71,8 @@ class QueryBuilder
         'where'   => null,
         'groupBy' => array(),
         'having'  => null,
-        'orderBy' => array()
+        'orderBy' => array(),
+        'values'  => array(),
     );
 
     /**
@@ -226,6 +228,9 @@ class QueryBuilder
         }
 
         switch ($this->type) {
+            case self::INSERT:
+                $sql = $this->getSQLForInsert();
+                break;
             case self::DELETE:
                 $sql = $this->getSQLForDelete();
                 break;
@@ -536,6 +541,38 @@ class QueryBuilder
         ));
     }
 
+    /**
+     * Turns the query being built into an insert query that inserts into
+     * a certain table
+     *
+     * <code>
+     *     $qb = $conn->createQueryBuilder()
+     *         ->insert('users')
+     *         ->values(
+     *             array(
+     *                 'name' => 'username',
+     *                 'password' => md5('password')
+     *             )
+     *         );
+     * </code>
+     *
+     * @param string $insert The table into which the rows should be inserted.
+     *
+     * @return QueryBuilder This QueryBuilder instance.
+     */
+    public function insert($insert = null)
+    {
+        $this->type = self::INSERT;
+
+        if ( ! $insert) {
+            return $this;
+        }
+
+        return $this->add('from', array(
+            'table' => $insert
+        ));
+    }
+
     /**
      * Creates and adds a query root corresponding to the table identified by the
      * given alias, forming a cartesian product with any existing query roots.
@@ -842,6 +879,56 @@ class QueryBuilder
         return $this->add('groupBy', $groupBy, true);
     }
 
+    /**
+     * Sets a value for a column in an insert query.
+     *
+     * <code>
+     *     $qb = $conn->createQueryBuilder()
+     *         ->insert('users')
+     *         ->values(
+     *             array(
+     *                 'name' => 'username'
+     *             )
+     *         )
+     *         ->setValue('password', md5('password'));
+     * </code>
+     *
+     * @param string $column The column into which the value should be inserted.
+     * @param string $value  The value that should be inserted into the column.
+     *
+     * @return QueryBuilder This QueryBuilder instance.
+     */
+    public function setValue($column, $value)
+    {
+        $this->sqlParts['values'][$column] = $value;
+
+        return $this;
+    }
+
+    /**
+     * Specifies values for an insert query indexed by column names.
+     * Replaces any previous values, if any.
+     *
+     * <code>
+     *     $qb = $conn->createQueryBuilder()
+     *         ->insert('users')
+     *         ->values(
+     *             array(
+     *                 'name' => 'username',
+     *                 'password' => md5('password')
+     *             )
+     *         );
+     * </code>
+     *
+     * @param array $values The values to specify for the insert query indexed by column names.
+     *
+     * @return QueryBuilder This QueryBuilder instance.
+     */
+    public function values(array $values)
+    {
+        return $this->add('values', $values);
+    }
+
     /**
      * Specifies a restriction over the groups of the query.
      * Replaces any previous having restrictions, if any.
@@ -1029,6 +1116,18 @@ class QueryBuilder
             : $this->connection->getDatabasePlatform()->modifyLimitQuery($query, $this->maxResults, $this->firstResult);
     }
 
+    /**
+     * Converts this instance into an INSERT string in SQL.
+     *
+     * @return string
+     */
+    private function getSQLForInsert()
+    {
+        return 'INSERT INTO ' . $this->sqlParts['from']['table'] .
+        ' (' . implode(', ', array_keys($this->sqlParts['values'])) . ')' .
+        ' VALUES(' . implode(', ', $this->sqlParts['values']) . ')';
+    }
+
     /**
      * Converts this instance into an UPDATE string in SQL.
      *

tests/Doctrine/Tests/DBAL/Query/QueryBuilderTest.php

@@ -451,6 +451,78 @@ class QueryBuilderTest extends \Doctrine\Tests\DbalTestCase
         $this->assertSame($qb2, $qb);
     }
 
+    public function testInsertValues()
+    {
+        $qb = new QueryBuilder($this->conn);
+        $qb->insert('users')
+            ->values(
+                array(
+                    'foo' => '?',
+                    'bar' => '?'
+                )
+            );
+
+        $this->assertEquals(QueryBuilder::INSERT, $qb->getType());
+        $this->assertEquals('INSERT INTO users (foo, bar) VALUES(?, ?)', (string) $qb);
+    }
+
+    public function testInsertReplaceValues()
+    {
+        $qb = new QueryBuilder($this->conn);
+        $qb->insert('users')
+            ->values(
+                array(
+                    'foo' => '?',
+                    'bar' => '?'
+                )
+            )
+            ->values(
+                array(
+                    'bar' => '?',
+                    'foo' => '?'
+                )
+            );
+
+        $this->assertEquals(QueryBuilder::INSERT, $qb->getType());
+        $this->assertEquals('INSERT INTO users (bar, foo) VALUES(?, ?)', (string) $qb);
+    }
+
+    public function testInsertSetValue()
+    {
+        $qb = new QueryBuilder($this->conn);
+        $qb->insert('users')
+            ->setValue('foo', 'bar')
+            ->setValue('bar', '?')
+            ->setValue('foo', '?');
+
+        $this->assertEquals(QueryBuilder::INSERT, $qb->getType());
+        $this->assertEquals('INSERT INTO users (foo, bar) VALUES(?, ?)', (string) $qb);
+    }
+
+    public function testInsertValuesSetValue()
+    {
+        $qb = new QueryBuilder($this->conn);
+        $qb->insert('users')
+            ->values(
+                array(
+                    'foo' => '?'
+                )
+            )
+            ->setValue('bar', '?');
+
+        $this->assertEquals(QueryBuilder::INSERT, $qb->getType());
+        $this->assertEquals('INSERT INTO users (foo, bar) VALUES(?, ?)', (string) $qb);
+    }
+
+    public function testEmptyInsert()
+    {
+        $qb = new QueryBuilder($this->conn);
+        $qb2 = $qb->insert();
+
+        $this->assertEquals(QueryBuilder::INSERT, $qb->getType());
+        $this->assertSame($qb2, $qb);
+    }
+
     public function testGetConnection()
     {
         $qb   = new QueryBuilder($this->conn);