我可以用谷歌课堂API给“以学生身份登录”的作业打分吗？

Question

当（以学生身份登录）我交作业，但我想包括一个初稿成绩。

对于如何自动设置投稿的等级有什么想法吗？

Answer 1

我认为这是不可能的：您不能以学生权限更新draftGrade。

您可以做的：

1. 从“学生”会话中，在应用程序数据库中保存与提交ID关联的草稿成绩。
2. 从“teacher”会话以及“teacher”权限中，您可以从应用程序数据库中获取等级，然后我调用路径查询来设置draftgrade。

    func executeQuery_GradeSubmission(studentSubmission: GTLRClassroom_StudentSubmission) -> GTLRServiceTicket? {
        guard let courseID = self.myClassroom?.courseID,
              let courseWorkID = self.selectedCourseWorkID else { return nil }

        if let grade = self.gradesForSelectedWorkID?[studentSubmission.identifier!] {
            studentSubmission.draftGrade = NSNumber(floatLiteral: Double(grade))
        }
        
        let query = GTLRClassroomQuery_CoursesCourseWorkStudentSubmissionsPatch.query(withObject: studentSubmission,
                                                                                      courseId: courseID,
                                                                                      courseWorkId: courseWorkID,
                                                                                      identifier: studentSubmission.identifier!)
        query.updateMask = "draftGrade"
        return self.myClassroom?.service.executeQuery(query,
                                                      delegate: self,
                                                      didFinish: #selector(displayGradeSubmissionResult(ticket:finishedWithObject:error:)))
    }
    
    @objc func displayGradeSubmissionResult(ticket: GTLRServiceTicket, finishedWithObject: GTLRObject, error: Any?){
        let classroomSubmissionResponse = finishedWithObject as? GTLRClassroom_StudentSubmission
        
        if let classroomError = error as? NSError {
            print("displayGradeSubmissionResult. ERROR: \(classroomError.description)")
            // TODO: inform something went wrong
        } else {
            if let submissionItems = self.classroomSubmissionsResponse?.studentSubmissions {
                for submissionItem in submissionItems {
                    if submissionItem.identifier == classroomSubmissionResponse?.identifier {
                        submissionItem.draftGrade = classroomSubmissionResponse?.draftGrade
                    }
                }
            }
        }
    }