Question

Possible Duplicate:
Django “Enter a list of values” form error when rendering a ManyToManyField as a Textarea

I have python,django,ajax these data in artist input field. I am getting Enter a list of values.error. Will you please help me to save these data? thanks

Model

artist = models.ManyToManyField(ApiArtist, blank=True)

Form and Validation

class ApiSongForm(ModelForm):
    class Meta:
        model = ApiSong
        widgets = {
            'artist': forms.TextInput(),
        }

    def clean_artist(self):
        data = self.cleaned_data
        artist_list = data.get('artist', None)
        if artist_list is not None:
            for artist_name in artist_list.split(','):
                artist = ApiArtist(name=artist_name).save()
        return artist_list

EDIT

Now I’ve changed the code copy/paste from provided link. But and I am getting Cannot resolve keyword 'artist' into field. Choices are: apisong, id, name. error message.
Here is my ApiArtist and SongModel. thanks

class ModelCommaSeparatedChoiceField(ModelMultipleChoiceField):
    widget = forms.TextInput
    def clean(self, value):
        if value is not None:
            print value
            value = [item.strip() for item in value.split(",")]  # remove padding
        return super(ModelCommaSeparatedChoiceField, self).clean(value)

class ApiSongForm(ModelForm):
    artist = ModelCommaSeparatedChoiceField(
               required=False, queryset=ApiArtist.objects.filter(), to_field_name='artist')
    class Meta:
        model = ApiSong

Answer 1

Now my following code is working. Thanks anyways

class ApiSongForm(ModelForm):
    artist = forms.CharField()

    def save(self, commit=True):
        instance = super(ApiSongForm, self).save(commit=commit)
        artists = self.cleaned_data.get('artist', None)
        if artists is not None:
            for artist_name in artists.split(","):
                artist = ApiArtist.objects.create(name=artist_name)
                instance.artist.add(artist)

        instance.save()
        return instance