Question

我在model.py中创建fllowing多继承，同时运行python manage.py makemigrations获取错误错误： - 错误： polls.VideoWithThumbnail :( models.E005）字段＆＃39; media_ptr＆＃39;来自父母模特＆＃39; polls.video＆＃39;与该领域的冲突＆＃39; media_ptr＆＃39;来自父母模特＆＃39; polls.photo＆＃39;。

job_descr                                                              house_num        address
To construct 6 Unit Dwellings of Row Housings (Units 1-6; Building 10)  1   1, 14751 - 125 STREET NW
To construct 7 Dwellings of Row Housings (Units 7-13 - Building 16)     7   7, 14751 - 125 STREET NW
To construct 6 Dwellings of Row Housings (Units 14-19 - Building 4).    19  19, 14751 - 125 STREET NW
To construct 8 Dwellings of Row Housings (UNITS 20-27 - Building 3).    27  27, 14751 - 125 STREET NW
To construct 7 Dwellings of Row Housings (Units 58-64 - Building 8).    58  58, 14751 - 125 STREET NW
To construct 4 Dwellings of Row Housings (Units 65-68 - Building 9)     65  65, 14751 - 125 STREET NW
To construct 7 Dwellings of Row Housings (Units 69-75 - Buiding 15).    69  69, 14751 - 125 STREET NW
To construct 8 Dwellings of Row Housings (Units 76-83 - Building 14)    76  76, 14751 - 125 STREET NW

Answer 1

您可以尝试以下代码

class Media(models.Model):    
    title=models.CharField(max_length=255)
    pub_date=models.DateTimeField()

class Photo(Media):
    photo_to_media = models.OneToOneField(Media, parent_link=True)
    is_faculty = models.BooleanField(default=False)


class Video(Media):
    video_to_media = models.OneToOneField(Media, parent_link=True)
    is_student = models.BooleanField(default=False)


class VideoWithThumbnail(Video,Photo):    
    pass

在django中实现多标签继承时出错

1 个答案: