我希望我的标题足以确定错误是什么。
我的<script src="https://code.jquery.com/jquery-3.4.1.js" integrity="sha256-WpOohJOqMqqyKL9FccASB9O0KwACQJpFTUBLTYOVvVU=" crossorigin="anonymous"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js" integrity="sha256-T0Vest3yCU7pafRw9r+settMBX6JkKN06dqBnpQ8d30=" crossorigin="anonymous"></script>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.10.20/css/dataTables.bootstrap4.min.css" />
<script type="text/javascript" src="https://cdn.datatables.net/1.10.20/js/dataTables.bootstrap4.js"></script>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<table class="table table-bordered table-hover order-list" id="tab_logic">
<tbody>
<tr id="fst_row">
<td style="display: none;">
<input type="number" id="staticLedger" placeholder='Ledger Number' for="staticLedger" name="ledgerno" class="form-control" />
</td>
<td style="display: none;">
<input type="text" id="tdsrow" placeholder='Ledger Number' name="tdsrow" value="Y" th:value="Y" class="form-control" />
</td>
<td>
<input type="number" id="payacc_code" placeholder='Enter A/c code' for="acctcode" name="acctcode" class="form-control sel_text" />
</td>
<td>
<select class="form-control sel_sel" id="payacc" name="actname" for="actname">
</select>
</td>
<td>
<textarea class="form-control pname required" id="pay_narrat" name="narr" for="narr" placeholder="Enter your text here"></textarea>
</td>
<td>
<input type="text" id="paydeb" name="debit" for="debit" placeholder='Debit Amount' data-action="sumDebit" class="form-control" readonly />
</td>
<td>
<input type="number" id="paycredit" name="credit" for="credit" placeholder='Credit Amount' data-action="sumCredit" class="form-control" tabindex="-1" readonly />
</td>
<td><button type="button" class="adRow" style="width:70%; cursor: not-allowed;">x</button></a>
</td>
</tr>
<input type="button" class="add_Row adRow" id="add_Row" value="Add Row">
</tbody>
</table>
</div>
</div>
</div>中有此代码（post_save）
models.py当我使用 class StudentsEnrolledSubject(models.Model):
Students_Enrollment_Records = models.ForeignKey(StudentsEnrollmentRecord,related_name='+',on_delete=models.CASCADE,null=True)
Subject_Section_Teacher = models.ForeignKey(SubjectSectionTeacher,null=True,blank=True)
@receiver(post_save,sender=StudentsEnrollmentRecord)
def create(sender,instance,created,*args,**kwargs):
teachers = SubjectSectionTeacher.objects.filter(Sections=instance.Section,Education_Levels=instance.Education_Levels,Courses=instance.Courses)
for each in teachers:
if created and teachers.exists():
StudentsEnrolledSubject.objects.update_or_create(
pk=each.id,Students_Enrollment_Records=instance,Subject_Section_Teacher=teachers.all()
)
class StudentsEnrollmentRecord(models.Model):
Student_Users = models.ForeignKey(StudentProfile,related_name='students',null=True)
class SubjectSectionTeacher(models.Model):
Education_Levels = models.ForeignKey(EducationLevel,blank=True)
Courses = models.ForeignKey(Course,blank=True)
Sections = models.ForeignKey(Section,null=True)
Subjects = models.ForeignKey(Subject,null=True)
Employee_Users = models.ForeignKey(EmployeeUser,null=True)
时，我没有收到任何错误，但是那不是我想要的结果，所以我决定将其更改为此Subject_Section_Teacher=teachers.first()
我只希望结果变成这个
不是这个
这是我获取/过滤数据的地方
