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lib/Doctrine/Sequence/Pgsql.php

@@ -32,5 +32,57 @@ Doctrine::autoload('Doctrine_Sequence');
  */
 class Doctrine_Sequence_Pgsql extends Doctrine_Sequence
 {
-
+    /**
+     * Returns the next free id of a sequence
+     *
+     * @param string $seqName   name of the sequence
+     * @param bool              when true missing sequences are automatic created
+     *
+     * @return integer          next id in the given sequence
+     */
+    public function nextID($seqName, $ondemand = true)
+    {
+        $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true);
+        $query = "SELECT NEXTVAL('$sequence_name')";
+        $this->expectError(MDB2_ERROR_NOSUCHTABLE);
+        $result = $this->queryOne($query, 'integer');
+        $this->popExpect();
+        if (PEAR::isError($result)) {
+            if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) {
+                $this->loadModule('Manager', null, true);
+                $result = $this->manager->createSequence($seq_name);
+                if (PEAR::isError($result)) {
+                    return $this->raiseError($result, null, null,
+                        'on demand sequence could not be created', __FUNCTION__);
+                }
+                return $this->nextId($seq_name, false);
+            }
+        }
+        return $result;
+    }
+    /**
+     * Returns the autoincrement ID if supported or $id or fetches the current
+     * ID in a sequence called: $table.(empty($field) ? '' : '_'.$field)
+     *
+     * @param   string  name of the table into which a new row was inserted
+     * @param   string  name of the field into which a new row was inserted
+     */
+    public function lastInsertID($table = null, $field = null)
+    {
+        $seq = $table.(empty($field) ? '' : '_'.$field);
+        $sequence_name = $this->getSequenceName($seq);
+        return $this->queryOne("SELECT currval('$sequence_name')", 'integer');
+    }
+    /**
+     * Returns the current id of a sequence
+     *
+     * @param string $seqName   name of the sequence
+     *
+     * @return integer          current id in the given sequence
+     */
+    public function currID($seqName)
+    {
+        $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true);
+        return $this->queryOne("SELECT last_value FROM $sequence_name", 'integer');
+    }
 }

lib/Doctrine/Sequence/Sqlite.php

@@ -32,5 +32,81 @@ Doctrine::autoload('Doctrine_Sequence');
  */
 class Doctrine_Sequence_Sqlite extends Doctrine_Sequence
 {
-
+    /**
+     * Returns the next free id of a sequence
+     *
+     * @param string $seqName   name of the sequence
+     * @param bool              when true missing sequences are automatic created
+     *
+     * @return integer          next id in the given sequence
+     */
+    public function nextID($seqName, $ondemand = true)
+    {
+        $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true);
+        $seqcol_name = $this->options['seqcol_name'];
+        $query = "INSERT INTO $sequence_name ($seqcol_name) VALUES (NULL)";
+        $this->expectError(MDB2_ERROR_NOSUCHTABLE);
+        $result =& $this->_doQuery($query, true);
+        $this->popExpect();
+        if (PEAR::isError($result)) {
+            if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) {
+                $this->loadModule('Manager', null, true);
+                // Since we are creating the sequence on demand
+                // we know the first id = 1 so initialize the
+                // sequence at 2
+                $result = $this->manager->createSequence($seq_name, 2);
+                if (PEAR::isError($result)) {
+                    return $this->raiseError($result, null, null,
+                        'on demand sequence '.$seq_name.' could not be created', __FUNCTION__);
+                } else {
+                    // First ID of a newly created sequence is 1
+                    return 1;
+                }
+            }
+            return $result;
+        }
+        $value = $this->lastInsertID();
+        if (is_numeric($value)) {
+            $query = "DELETE FROM $sequence_name WHERE $seqcol_name < $value";
+            $result =& $this->_doQuery($query, true);
+            if (PEAR::isError($result)) {
+                $this->warnings[] = 'nextID: could not delete previous sequence table values from '.$seq_name;
+            }
+        }
+        return $value;
+    }
+    /**
+     * Returns the autoincrement ID if supported or $id or fetches the current
+     * ID in a sequence called: $table.(empty($field) ? '' : '_'.$field)
+     *
+     * @param   string  name of the table into which a new row was inserted
+     * @param   string  name of the field into which a new row was inserted
+     */
+    public function lastInsertID($table = null, $field = null)
+    {
+        $connection = $this->getConnection();
+        if (PEAR::isError($connection)) {
+            return $connection;
+        }
+        $value = @sqlite_last_insert_rowid($connection);
+        if (!$value) {
+            return $this->raiseError(null, null, null,
+                'Could not get last insert ID', __FUNCTION__);
+        }
+        return $value;
+    }
+    /**
+     * Returns the current id of a sequence
+     *
+     * @param string $seqName   name of the sequence
+     *
+     * @return integer          current id in the given sequence
+     */
+    public function currID($seqName)
+    {
+        $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true);
+        $seqcol_name = $this->quoteIdentifier($this->options['seqcol_name'], true);
+        $query = "SELECT MAX($seqcol_name) FROM $sequence_name";
+        return $this->queryOne($query, 'integer');
+    }
 }