/**
* handle a spatial call
*
* the form is taken from: http://www.mongodb.org/display/DOCS/Geospatial+Indexing
*
* @since 10-18-10
* @param string $name the field name
* @param array $point a latitude and longitude point
* @param integer $distance the radius around the point
* @return MingoCriteria
*/
public function nearField($name, $point, $distance)
{
// canary, make sure the point is valid...
$field = new MingoField();
$field->setType(MingoField::TYPE_POINT);
$point = $field->normalizeInVal($point);
$near_command = $this->normalizeCommand('near');
$val = array($near_command => $point, $this->normalizeCommand('maxDistance') => (int) $distance);
return $this->setWhereVal($name, '', $val, array($near_command));
}
/**
* get a field instance for the given name
*
* this will return any previously set field instance if it exists, if it doesn't
* then it will create a new one so it guarrantees to always return an mingo_field
* instance
*
* @param string|array $name the field's name
* @return mingo_field
*/
public function getField($name, $default_val = null)
{
$ret_instance = parent::getField($name, null);
if ($ret_instance === null) {
$ret_instance = new MingoField($name);
$ret_instance->setDefaultVal($default_val);
}
//if
return $ret_instance;
}