Add agenda service and submit api

Signed-off-by: Asai Neko <sugar@sne.moe>

data/event.go

@@ -110,3 +110,33 @@ func (self *Event) FastListEvents(ctx context.Context, limit, offset int64) (*[]
 
 	return &results, nil
 }
+
+func (self *Event) GetEventsByUserId(ctx context.Context, userId uuid.UUID, limit, offset int64) (*[]EventIndexDoc, error) {
+	var results []EventIndexDoc
+
+	err := Database.WithContext(ctx).
+		Table("events").
+		Select(`
+			events.event_id,
+			events.name,
+			events.type,
+			events.description,
+			events.start_time,
+			events.end_time,
+			events.thumbnail,
+			events.enable_kyc,
+			(SELECT COUNT(*) FROM attendances WHERE attendances.event_id = events.event_id) as join_count
+		`).
+		Joins("JOIN attendances ON attendances.event_id = events.event_id").
+		Where("attendances.user_id = ?", userId).
+		Order("events.start_time DESC").
+		Limit(int(limit)).
+		Offset(int(offset)).
+		Scan(&results).Error
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &results, nil
+}