/**
* Import a schema using JSON
*
* @todo sanity checking of the input data should be added
*
* @param string $table
* @param string $json
* @param bool $islookup
*/
public function __construct($table, $json, $islookup = false)
{
parent::__construct($table, array('islookup' => $islookup));
// number of existing columns
$existing = count($this->oldschema->getColumns());
$input = json_decode($json, true);
if ($input === null) {
switch (json_last_error()) {
case JSON_ERROR_NONE:
$error = 'No errors';
break;
case JSON_ERROR_DEPTH:
$error = 'Maximum stack depth exceeded';
break;
case JSON_ERROR_STATE_MISMATCH:
$error = 'Underflow or the modes mismatch';
break;
case JSON_ERROR_CTRL_CHAR:
$error = 'Unexpected control character found';
break;
case JSON_ERROR_SYNTAX:
$error = 'Syntax error, malformed JSON';
break;
case JSON_ERROR_UTF8:
$error = 'Malformed UTF-8 characters, possibly incorrectly encoded';
break;
default:
$error = 'Unknown error';
break;
}
throw new StructException('JSON couldn\'t be decoded: ' . $error);
}
$data = array('cols' => array(), 'new' => array());
foreach ($input['columns'] as $column) {
// config has to stay json
$column['config'] = json_encode($column['config'], JSON_PRETTY_PRINT);
if (!empty($column['colref']) && $column['colref'] <= $existing) {
// update existing column
$data['cols'][$column['colref']] = $column;
} else {
// add new column
$data['new'][] = $column;
}
}
$this->data = $data;
}
