public function commit(array $attributes)
{
//TODO: move all this logic to the query class
// Get the node type
$type = $this->getType();
// Determine the correct context
if (is_string($attributes['context']))
{
// Use the passed context
$attributes['context'] = MeshTools::GetContextPks($attributes['context']);
}
else if (!$attributes['context'])
{
if ($this->pk)
{
// Bypass context on existing nodes if not explicitly passed in
unset($attributes['context']);
}
else
{
// For new nodes use the default context
$attributes['context'] = (array)MeshTools::GetDefaultContextPk();
if (empty($attributes['context'])) // for non-context setups
{
unset($attributes['context']);
}
}
}
if (! isset($attributes['context']))
{
// Do nothing, bypass context updates
}
else if (1 == count($attributes['context']))
{
$attributes['context'] = $attributes['context'][0];
}
else // @todo New nodes can only have one context
{
throw new Exception('Cannot create node with ambiguous context');
}
// Separate the attirbutes from the links
foreach ($attributes as $key => $value)
{
// Link Nodes if not attributes
if (! $this->_isAttribute($key))
{
// Use only valid node types
if ($this->_isNodeType($key))
{
// Copy the attribute to the links array
$links[$key] = $attributes[$key];
}
else
{
throw new Exception('Cannot link '.$type.' with '.$key.' because type '.$key.' doesn\'t exist.');
}
// Remove all non-attirbutes from the attributes array
unset($attributes[$key]);
}
}
try
{
// First update/insert the attributes
// If the node exists then peform update, otherwise insert
if ($this->pk)
{
// cache the data for this node
$this->_cache->populate($attributes);
$dbc = new DatabaseConnection();
$sql = "UPDATE $type SET ";
foreach ($attributes as $key => $value)
{
$sql .= " $key = '".$dbc->escape($value)."', ";
}
$sql = rtrim($sql, ', ');
$sql .= " WHERE pk = $this->pk";
$dbc->query($sql);
}
else
{
// cache the data for this node
$this->_cache->populate($attributes);
$dbc = new DatabaseConnection();
// Clean the attributes
array_walk($attributes, array($this, '_escapeString'));
// Build the columns and values
$columns = implode(',', array_keys($attributes));
$values = "'".implode("','", $attributes)."'";
$sql = "INSERT INTO $type ($columns) VALUES ($values)";
$dbc->query($sql);
$this->_cache->populate(array('pk' => mysql_insert_id())); // @todo MySQL-dependant!
}
// Now link the nodes
if (count($links))
{
foreach ($links as $type => $nodes)
{
$this->_linkNodes($nodes, $type);
}
}
$node = new Node($this->_callChain);
return $node;
}
catch (Exception $e)
{
throw new Exception($e);
}
}
