我有两个表,第一个是主题表,第二个是 subjects_doctors表。这里的关系是一对多。
更新方法代码:
public function update(Request $request, $id)
{
$this -> validate($request, [
'name' => 'required',
'max_students' => 'required',
'doctors' => 'required',
'description' => 'required'
]);
$subject = Subject::find($id);
$subject -> name = $request -> name;
$subject -> description = $request -> description;
$subject -> max_students = $request -> max_students;
$subject -> save();
//PROBLEM
$y = Subject::where('id', $subject -> id) -> doctors() -> update(['doctor_id' => $request -> doctors]);
Session::flash('success', 'Subject has been updated successfully!');
return redirect() -> route('subjects.index');
}
$request
变量包含一个包含所有已更新医生 id 的数组。
例如
我在主题表中subject 1 HAVE 1 DOCTOR
,我已将其更新为SUBJECT 1 HAVE 2 DOCTORS
..我是怎么做到的?
我拥有变量中的所有内容,但我无法在subjects_doctors
表中更新它们。
答案 0 :(得分:2)
使用Laravel中的 sync()功能解决了该问题。感谢。
这是它可能提供帮助的代码
x = ["pink-one", "pink-two", "pink-three", "pink-four"]
y = ["pink", "one"] # For a search to be successful, all of these
# strings should be present in `x`.
find_multiple_substring(x, y) # returns 0