SeaORM error on Composite Primary Key Enum with #[derive(DerivePrimaryKey)] in a model with #[derive(DeriveEntityModel)] errors:

error[E0599]: no variant or associated item named `Google` found for enum `user_idp::Column` in the current scope
  --> workspace/entity/src/user_idp.rs:10:5
   |
10 |     Google,
   |     ^^^^^^ variant or associated item not found in `Column`
...
13 | #[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq, Serialize, Deserialize)]
   |                                   ----------------- variant or associated item `Google` not found for this enum

The fix: Remove the DerivePrimaryKey on the enum.

Here’s the patch:

#[derive(Debug, Clone, Copy, PartialEq, Eq, EnumIter, DeriveActiveEnum, DerivePrimaryKey, Serialize, Deserialize)]
//                                                                      ^^^^^^^^^^^^^^^^
#[sea_orm(rs_type = "String", db_type = "Enum", enum_name = "provider")]
pub enum Provider {
    #[sea_orm(string_value = "google")]
    Google,
}

#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq, Serialize, Deserialize)]
#[sea_orm(table_name = "user_idp")]
pub struct Model {
    #[sea_orm(primary_key, auto_increment = false)]
    pub user_id: String,

    #[sea_orm(primary_key, auto_increment = false)]
    pub provider: Provider,

    #[sea_orm(column_type = "Text")]
    pub uid: String,

    pub created_at: DateTimeUtc,

    pub updated_at: DateTimeUtc,
}