Migrate GetSystemById

PluralKit.Core/Models/ModelQueryExt.cs

@@ -1,5 +1,4 @@
 #nullable enable
-using System.Data;
 using System.Threading.Tasks;
 
 using Dapper;
@@ -8,6 +7,9 @@ namespace PluralKit.Core
 {
     public static class ModelQueryExt
     {
+        public static Task<PKSystem?> QuerySystem(this IPKConnection conn, int id) =>
+            conn.QueryFirstOrDefaultAsync<PKSystem?>("select * from systems where id = @id", new {id});
+        
         public static Task<PKMember?> QueryMember(this IPKConnection conn, int id) =>
             conn.QueryFirstOrDefaultAsync<PKMember?>("select * from members where id = @id", new {id});
         

PluralKit.Core/Services/IDataStore.cs

@@ -51,12 +51,6 @@ namespace PluralKit.Core {
 
     public interface IDataStore
     {
-        /// <summary>
-        /// Gets a system by its internal system ID.
-        /// </summary>
-        /// <returns>The <see cref="PKSystem"/> with the given internal ID, or null if no system was found.</returns>
-        Task<PKSystem> GetSystemById(int systemId);
-        
         /// <summary>
         /// Gets a system by its user-facing human ID.
         /// </summary>