Django-filter: TypeError: __init__() got an unexpected keyword argument 'name'

Hi @zhangqunshi, it sounds like you're using the 2.0.0.dev1 pre release. You are correct, name has become field_name. The docs have not been updated to reflect this (which is part of the reason why it's a pre release).

It's not easy to debug FileEvent without seeing the actual model. What happens when you execute the following query?

FileEvent.objects.filter(file_name__icontains='foo')

FileEvent is simple, only has report_id, file_name and event_time. when i use:

FileEvent.objects.filter(file_name__icontains='foo')

It will become the sql:

select * from file_event where file_name like '%foo%'

For the code:

class MyFilter(django_filters.FilterSet):
    class Meta:
        model = FileEvent
        fields = ['file_name', ]

it will become the sql:

select * from file_event where file_name ='foo'

For the code:

class MyFilter(django_filters.FilterSet):
    class Meta:
        model = FileEvent
        fields = {'file_name' : ['icontains'] }

it will become the sql:

select * from file_event

BTW the code to get queryset is:

    filter = MyFilter(request.GET,
                               queryset=FileEvent.objects.values().filter(report_id=1).order_by(
                                   '-event_time'))
   print(filter.qs)

And I cannot find any help from doc, that how to get result from filter in a common view, so I lookup the code, and find the field 'qs'in BaseFilterSet, and it works.

Now i change the code to:

class MyFilter(django_filters.FilterSet):
    file_name = django_filters.CharFilter(lookup_expr='icontains')

    class Meta:
        model = FileEvent
        fields = ['file_name',]

and it works, the sql is like '%foo%'

@zhangqunshi, my guess would be that you're filtering with an incorrect querystring. It should be:

/file-events?file_name__icontains=foo

You are right, i use the url: /file-events?file_name=foo
Because i think the code is already define the file_name field should use the icontains.

Yep. It's counterintuitive at first, but the change is necessary because you can use the dictionary syntax to define multiple filters. For example,

class MyFilter(django_filters.FilterSet):
    class Meta:
        model = FileEvent
        fields = {'file_name': ['icontains', 'istartswith', 'iendswith',]}

This enables you to run queries like /file-events?file_name__istarswith=foo&file_name__iendswith=log

ok, i got it, and the code ['icontains', 'istartswith', 'iendswith',] is just a supported query type list. If the query not use any item of the list, django-filter will ignore it.

Thanks a lot :-)