[Fixed]-Issues migrating project from django 1.5 to django 1.8

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The traceback is telling you that the problem is this line in your UnidadesForm model form.

ciudad = forms.ModelChoiceField(widget=forms.Select(attrs={'size':'13', 'onchange':'this.form.action=this.form.submit()'}), choices= RefCiudades.objects.filter(provincia__contains = RefProvincia.objects.filter(descripcion__contains = "CHUBUT").values("id"))  )

As it’s a model choice field, it would be better to use the queryset argument rather than choices.

ciudad = forms.ModelChoiceField(widget=forms.Select(attrs={'size':'13', 'onchange':'this.form.action=this.form.submit()'}), queryset= RefCiudades.objects.filter(provincia__contains = RefProvincia.objects.filter(descripcion__contains = "CHUBUT").values("id"))  )

I think that might stop the error, but I’m not sure that your queryset makes sense. The filter argument provincia__contains should take a string, but RefProvincia(...).values("id") will return a values queryset.

👤Alasdair

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