我想更新记录并检查表中是否不存在,但问题是如果我检查存在,它可以工作,但我什至无法更新我选择的一条记录,因为它已经存在。
这是我的代码
$app->post('/update_function', function($request, $response, $args) {
$exists = $this->db->table('functions')->where('project_id', '=', $request->getParam('project_id'))
->where('function_number', '=', $request->getParam('function_number'))
->exists();
if(!$exists) {
$query = $this->db->table('functions')
->where('function_id', '=', $request->getParam('function_id'))
->update([
'project_id' => $request->getParam('project_id'),
'function_number' => $request->getParam('function_number'),
'function_text' => $request->getParam('function_text')
]);
if($query) {
echo "Function was updated";
}
}else {
echo "Can not update duplicate function number";
}
});