[SOLVED] Model object has no attribute

Model object has no attribute - Tortoise ORM

I am getting this error AttributeError: 'GuildCluster' object has no attribute 'guilds' when I try to get the guilds attribute (which is a ReverseRelation fields) from a GuildCluster object.

I already tried to check the relations, the foreign keys, to rename the attribute in case it was already used. I also tried to define the Guild class before GuildCluster, it returns the same error.

Here is the GuildCluster model (a part of it):

class GuildCluster(Model):
    class Meta:
        table = "guild_clusters"

    id = fields.IntField(pk=True)

    name = fields.CharField(max_length=255)

    infos: fields.ReverseRelation["ClusterInfo"]
    guilds: fields.ReverseRelation["Guild"]
    users: fields.ReverseRelation["User"]

And here is the Guild model (a part of it too):

class Guild(Model):
    class Meta:
        table = "guilds"

    id = fields.BigIntField(pk=True)
    cluster = fields.ForeignKeyField("main.GuildCluster", related_name="cluster_guilds")

    infos: fields.ReverseRelation["GuildInfo"]

You can note that the infos and users attribute are working fine.

Solution

The bug was caused by this line in Guild : cluster = fields.ForeignKeyField("main.GuildCluster", related_name="cluster_guilds").

If you want to access to the related fields of a Model, you have to use the name that you set in the ForeignKeyField.

So here, to make the previous code work you have to call <GuildCluster>.cluster_guilds or change related_name="cluster_guilds" to related_name="guilds"