Searching related fields

[pljspahn]

I have the following models:

class Product(models.Model):
    name = models.CharField('Name', max_length=50)
    description = models.TextField('Description', max_length=1000)

    def __str__(self):
        return self.name

class PlantProduct(Product):
    genus = models.ForeignKey(Genus, on_delete=models.SET_NULL, null=True, blank=True)        

class Genus(models.Model):
    common = models.CharField('Common Genus', max_length=100)
    latin = models.CharField('Latin Genus', max_length=100)

    def __str__(self):
        return self.common

I have registered PlantProduct with watson without any additional options:

class CatalogConfig(AppConfig):
    name = 'catalog'

    def ready(self):
        PlantProduct = self.get_model('PlantProduct')
        watson.register(PlantProduct)

I am able to search and it's fine. I would like to add the genus foreign key to the search, specifically the latin name, so I changed the model registration to:

watson.register(PlantProduct, fields=("genus__latin"))

After making this change, I now run manage.py buildwatson which fails with the error: watson.search.SearchAdapterError: Could not find a property called 'g' on either <PlantProduct: Mission Arborvitae> or <watson.search.CustomSearchAdapter object at 0x7f7ea2ceb610>

I am using Django 3.0.5 with PostgreSQL - Am I trying to do something that's not supported?

[pljspahn]

=/

It never fails that after I post an issue or question, I find out the problem immediately after.

watson.register(PlantProduct, fields=("genus__latin"))

was missing the trailing comma

watson.register(PlantProduct, fields=("genus__latin",))

Fixed it.

[etianen]

Yup, that's the way it always goes!

Thanks for posting the solution. Means the next person with the problem might avoid the next pitfall, and keeps the open issue list small.