Lots more stuff

src/Nadeko.Bot.Db/Extensions/PollExtensions.cs

@@ -0,0 +1,36 @@
+#nullable disable
+using Microsoft.EntityFrameworkCore;
+using NadekoBot.Services.Database;
+using NadekoBot.Services.Database.Models;
+
+namespace NadekoBot.Db;
+
+public static class PollExtensions
+{
+    public static IEnumerable<Poll> GetAllPolls(this DbSet<Poll> polls)
+        => polls.Include(x => x.Answers)
+            .Include(x => x.Votes)
+            .ToArray();
+
+    public static void RemovePoll(this NadekoContext ctx, int id)
+    {
+        var p = ctx.Poll.Include(x => x.Answers).Include(x => x.Votes).FirstOrDefault(x => x.Id == id);
+
+        if (p is null)
+            return;
+
+        if (p.Votes is not null)
+        {
+            ctx.RemoveRange(p.Votes);
+            p.Votes.Clear();
+        }
+
+        if (p.Answers is not null)
+        {
+            ctx.RemoveRange(p.Answers);
+            p.Answers.Clear();
+        }
+
+        ctx.Poll.Remove(p);
+    }
+}