Question

在我对AdminModel进行了一些更改之后，我的一个查询突然开始失败。

搜索了一下后，我发现在我的admin_model中添加一个list_filter正在创建FieldError，这对我来说真的很奇怪......

我的模特：

class PiafInfo( models.Model ):
    no = models.IntegerField( u'No du Piaf', unique=True )
    origin_city = models.ForeignKey( City )
    ...

class PiafInfoAdmin( admin.ModelAdmin ):
    list_display = ('no', 'origin_city', 'group', 'fleet')
    list_filter = ['origin_city', ]
    ordering = ('no',)
    search_fields = ('no', 'group', 'fleet') 
admin.site.register( PiafInfo, PiafInfoAdmin )

class PiafTrans( models.Model ):
    ttype         = models.IntegerField( choices=TTYPE_CHOICES, default=TTYPE_RELOAD)
    date          = models.DateTimeField()
    piafSerial    = models.ForeignKey( PiafInfo )
    ...

class PiafTransAdmin( admin.ModelAdmin):
    list_display = ('date', 'piafSerial', 'city', 'ttype', 'amount', 'subscrName' )
    date_hierarchy = 'date'
    list_filter = ('city', 'ttype')
    search_fields = ('piafSerial', 'group', 'fleet', 'subscrName' ) 
admin.site.register( PiafTrans, PiafTransAdmin )

查询提出问题（第二行）：

piafInfos = models.PiafInfo.objects.all().distinct()
piafInfos = piafInfos.filter( piaftrans__date__range=(startDate,endDate) ).distinct()

就像那样，我收到以下错误：

FieldError: Cannot resolve keyword 'piaftrans' into field. Choices are: fleet, group, id, no, origin_city

它试图将piaftrans解释为字段名称而不是模型。

如果我在PiafInfoAdmin评论一行：

class PiafInfoAdmin( admin.ModelAdmin ):
    list_display = ('no', 'origin_city', 'group', 'fleet')
    # list_filter = ['origin_city', ]
    ordering = ('no',)
    search_fields = ('no', 'group', 'fleet') 

admin.site.register( PiafInfo, PiafInfoAdmin )

错误消失。我没有看到错误与我所做的更改之间存在任何关联！

这适用于Windows上的django 1.3和Python 2.7。

Answer 1

无法在这里重现。运用 models.py：

class City( models.Model ):
    name = models.CharField(max_length=110)

class PiafInfo( models.Model ):
    no = models.IntegerField( u'No du Piaf', unique=True )
    origin_city = models.ForeignKey( City )

class PiafTrans( models.Model ):
    ttype         = models.IntegerField()
    date          = models.DateTimeField()
    piafSerial    = models.ForeignKey( PiafInfo )

admin.py：

class PiafInfoAdmin( admin.ModelAdmin ):
    list_display = ('no', 'origin_city',)
    list_filter = ['origin_city', ]
    ordering = ('no',)
    search_fields = ('no',) 
admin.site.register( PiafInfo, PiafInfoAdmin )

class PiafTransAdmin( admin.ModelAdmin):
    list_display = ('date', 'piafSerial', 'ttype', )
    date_hierarchy = 'date'
    list_filter = ('ttype')
    search_fields = ('piafSerial', )
admin.site.register( PiafTrans, PiafTransAdmin )

django 1.3.8 pre-alfa（最新的1.3分支）

和以下代码：

startDate = datetime.today()
endDate = datetime.today()
piafInfos = PiafInfo.objects.all().distinct()
piafInfos = piafInfos.filter( piaftrans__date__range=(startDate,endDate) ).distinct()

list_filter触发FieldError

1 个答案: