python - Multiple foreign key fields in abstract Django class -

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i have abstract base class declares 2 foreign key fields user model:

class basemodel(models.model):     updated = models.datetimefield(null=true)     updated_by = models.foreignkey(settings.auth_user_model, null=true, related_name="updated_by")     created = models.datetimefield(null=true)     created_by = models.foreignkey(settings.auth_user_model, null=true, related_name="created_by")      class meta:         abstract=true

i have multiple classes inherit class. when run makemigrations, following error each possible class-pair , both created_by , updated_by:

myapp.classa.updated_by: (fields.e305) reverse query name 'classb.updated_by' clashes reverse query name 'classb.updated_by'.

hint: add or change related_name argument definition 'classa.updated_by' or 'classb.updated_by'.

even though have related_name set. works fine 1 of 2 foreign key fields declared.

is possible have 2 foreign key fields same model in abstract class, , if so, how set up?

this expected behavior mentioned in documentation.

to work around problem, when using related_name in abstract base class (only), part of name should contain '%(app_label)s' , '%(class)s'.

class basemodel(models.model):     updated = models.datetimefield(null=true)     updated_by = models.foreignkey(settings.auth_user_model, null=true, related_name="updated%(app_label)s_%(class)s_related")     created = models.datetimefield(null=true)     created_by = models.foreignkey(settings.auth_user_model, null=true, related_name="created%(app_label)s_%(class)s_related")      class meta:         abstract=true

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