public function addKeyword()
{
@($keyword = \Input::get('keyword'));
$response = ['state' => 'error', 'message' => 'Something wrong.'];
if ($keyword != '' && $keyword != null) {
if (\DB::table('block_keyword')->insert(['keyword' => $keyword])) {
$response = ['state' => 'success', 'message' => 'Add success.'];
} else {
$response = ['state' => 'failed', 'message' => 'Add failed.'];
}
}
echo json_encode($response);
}