Django search_field

Question

如何解决这个错误？ 因为每当我搜索学生用户时，我都会收到错误消息，

错误

管理文件

@admin.register(StudentsEnrollmentRecord)
class StudentsEnrollmentRecordAdmin(admin.ModelAdmin):
    #inlines = [InLineSubject]
    list_display = ('lrn', 'Student_Users', 'Education_Levels', 'Courses', 'Section', 'Payment_Type', 'Discount_Type' ,'School_Year')
    #list_select_related = ('Student_Users')
    ordering = ('Education_Levels','Student_Users__lrn')
    list_filter = ('Student_Users','Education_Levels','Section','Payment_Type')
    search_fields = ('Student_Users',)


    def lrn(self, obj):
        return  obj.Student_Users.lrn

我的模型.py

class StudentsEnrollmentRecord(models.Model):
    Student_Users = models.ForeignKey(StudentProfile, related_name='students', on_delete=models.CASCADE,null=True)
    School_Year = models.ForeignKey(SchoolYear, related_name='+', on_delete=models.CASCADE, null=True, blank=True)
    Courses = models.ForeignKey(Course, related_name='+', on_delete=models.CASCADE, null=True, blank=True)
    Section = models.ForeignKey(Section, related_name='+', on_delete=models.CASCADE, null=True,blank=True)
    Payment_Type = models.ForeignKey(PaymentType, related_name='+', on_delete=models.CASCADE, null=True)
    Discount_Type = models.ForeignKey(Discount, related_name='+', on_delete=models.CASCADE, null=True,blank=True)
    Education_Levels = models.ForeignKey(EducationLevel, related_name='+', on_delete=models.CASCADE,blank=True,null=True)

更新模型

class StudentProfile(models.Model):
   lrn = models.CharField(max_length=500,null=True)
   Firstname = models.CharField(max_length=500,null=True,blank=True)
   Middle_Initial = models.CharField(max_length=500,null=True,blank=True)
   Lastname = models.CharField(max_length=500,null=True,blank=True)
   Education_Levels= models.ForeignKey(EducationLevel, on_delete=models.CASCADE,blank=True,null=True)

Answer 1

您需要提供StudentProfile的特定字段 - 目前您的搜索字段是

search_fields = ('Student_Users',)

这意味着只有模型本身。 你没有发表您的架构StudentProfile ，但例如如果它包含一个Lastname场，你应该使用这样的：

search_fields = ('Student_Users__Lastname',)

要包含多个字段，您可以执行

search_fields = ('Student_Users__Lastname', 'Student_Users__Firstname',)

你也可以这样做

search_fields = ('=Student_Users__Lastname',)

为了“完全”匹配姓氏，前面的示例检查该字段是否包含查询字符串