Fix migration 'signer_registration' table

Author: jpraynaud

mithril-aggregator/src/database/migration.rs

@@ -151,6 +151,7 @@ create table open_message (
         // Migration 6
         // Add the `signer_registration` table and migration data from the previous
         // `verification_key` JSON format.
+        // TODO: activate FK w/ signer table exists `foreign key (signer_id) references signer(signer_id)`
         SqlMigration::new(
             6,
             r#"
@@ -164,9 +165,7 @@ create table signer_registration (
     stake                       integer,
     created_at                  text        not null default current_timestamp,
     primary key (epoch_setting_id, signer_id)
-    -- TODO: activate FK w/ signer table exists
-    -- foreign key (signer_id) references signer(signer_id)
-    foreign key (epoch_setting_id) references epoch_settings(epoch_setting_id)
+    foreign key (epoch_setting_id) references epoch_setting(epoch_setting_id)
 );
 create table if not exists verification_key (key_hash text primary key, key json not null, value json not null);
 insert into signer_registration (signer_id, 

mithril-aggregator/src/database/provider/signer_registration.rs

@@ -653,22 +653,16 @@ mod tests {
     }
 
     #[test]
-    fn get_signer_registration_record_by_signer_id_and_epoch() {
+    fn get_signer_registration_record_by_signer_id() {
         let connection = Connection::open(":memory:").unwrap();
         let provider = SignerRegistrationRecordProvider::new(&connection);
         let condition = provider
-            .condition_by_signer_id_and_epoch("signer-123".to_string(), &Epoch(1))
+            .condition_by_signer_id("signer-123".to_string())
             .unwrap();
         let (filter, values) = condition.expand();
 
-        assert_eq!(
-            "signer_id = ?1 and epoch_setting_id = ?2".to_string(),
-            filter
-        );
-        assert_eq!(
-            vec![Value::String("signer-123".to_string()), Value::Integer(1)],
-            values
-        );
+        assert_eq!("signer_id = ?1".to_string(), filter);
+        assert_eq!(vec![Value::String("signer-123".to_string())], values);
     }
 
     #[test]