Laravel：columnize() 必须是数组类型，给定字符串，调用
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Laravel: columnize() must be of the type array, string given, called in
提问by Virgil Cruz
I want to call this query instead of ID when updating a record, but im getting an error saying columnize() must be of the type array, string given, called in
我想在更新记录时调用这个查询而不是 ID，但我收到一个错误，说columnize() 必须是数组类型，给定字符串，调用
$user = Attendances::find(DB::raw('concat (firstname, " ",lastname)'), 'like', Input::get('student_name'))->where('section_name', 'like', Input::get('section_name'))->where('teacher_id', '=', Auth::user()->id)->where('subject_code', 'like', Input::get('subject_code'));
Pleae help :(
请帮忙:(
回答by lukasgeiter
The first method should be where()as well, because find()only works with primary keys. Also at the end should call get()or first()to execute the query:
第一种方法也应该如此where()，因为find()只适用于主键。最后还应该调用get()或first()执行查询：
$user = Attendances::where(DB::raw('concat (firstname, " ",lastname)'), 'like', Input::get('student_name'))
->where('section_name', 'like', Input::get('section_name'))
->where('teacher_id', '=', Auth::user()->id)
->where('subject_code', 'like', Input::get('subject_code'))
->first();
