Troubleshooting “Related Field has invalid lookup: icontains”

Question

I have the following models in models.py:

class ListinoTraduttore(models.Model):
        traduttore = models.ForeignKey(\'Traduttore\', related_name=         


        

Answer 1

This error, mostly occurs when you try to filter using a ForeignKey. I think the error is in the search_filelds. Check it. search_fields = ['traduttore__nome", "linguaDa", "linguaA"]. This two ForeignKey ("linguaDa", "linguaA") are the problem. Remove them. I think this helps.

Answer 2

Have you tried adding the __fieldname on those Lingua references in the ListinoTraduttoreAdmin search_fields, like:

class ListinoTraduttoreAdmin(admin.ModelAdmin):        
    list_display = ("traduttore", "linguaDa", "linguaA", "prezzoParola", "prezzoRiga", "scontoCat", "scontoFuzzy", "scontoRipetizioni")
    search_fields = ['traduttore__nome", "linguaDa__field1", "linguaA_field2"]