fix: save draft schedule with negative IDs from auto-arrange

- Handle negative groupId by creating new schedule groups
- Extract projectId from code format C{competitionId}-P{projectId}
- Save project type, participant count, and team count
- Query participants by participant_id instead of primary key
- Create new participant records if not exists

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

src/main/java/org/springblade/modules/martial/service/impl/MartialScheduleServiceImpl.java

@@ -409,16 +409,75 @@ public class MartialScheduleServiceImpl extends ServiceImpl<MartialScheduleMappe
 
 		for (CompetitionGroupDTO groupDTO : dto.getCompetitionGroups()) {
 			// 1. 更新或创建编排明细
+			Long groupId = groupDTO.getId();
+			Long realGroupId = groupId;
+
+			// Handle negative ID (draft data from auto-arrange)
+			if (groupId != null && groupId < 0) {
+				Long projectId = null;
+				if (groupDTO.getCode() != null && groupDTO.getCode().contains("-P")) {
+					try {
+						String suffix = groupDTO.getCode().substring(groupDTO.getCode().lastIndexOf("-P") + 2);
+						projectId = Long.parseLong(suffix);
+					} catch (Exception e) {
+						log.warn("Failed to parse projectId from code: {}", groupDTO.getCode());
+					}
+				}
+
+				MartialScheduleGroup existingGroup = null;
+				if (projectId != null) {
+					existingGroup = scheduleGroupMapper.selectOne(
+						new QueryWrapper<MartialScheduleGroup>()
+							.eq("competition_id", dto.getCompetitionId())
+							.eq("project_id", projectId)
+							.eq("is_deleted", 0)
+							.last("LIMIT 1")
+					);
+				}
+
+				// Determine project type from DTO
+				Integer projectType = null;
+				if ("集体".equals(groupDTO.getType())) {
+					projectType = 2;
+				} else if ("单人".equals(groupDTO.getType())) {
+					projectType = 1;
+				}
+				
+				// Calculate participant/team counts
+				int participantCount = groupDTO.getParticipants() != null ? groupDTO.getParticipants().size() : 0;
+				
+				if (existingGroup != null) {
+					realGroupId = existingGroup.getId();
+					existingGroup.setGroupName(groupDTO.getTitle());
+					existingGroup.setProjectType(projectType);
+					existingGroup.setTotalParticipants(participantCount);
+					existingGroup.setTotalTeams(participantCount);
+					existingGroup.setCategory(groupDTO.getCode());
+					scheduleGroupMapper.updateById(existingGroup);
+				} else {
+					MartialScheduleGroup newGroup = new MartialScheduleGroup();
+					newGroup.setCompetitionId(Long.valueOf(dto.getCompetitionId()));
+					newGroup.setProjectId(projectId);
+					newGroup.setGroupName(groupDTO.getTitle());
+					newGroup.setProjectType(projectType);
+					newGroup.setTotalParticipants(participantCount);
+					newGroup.setTotalTeams(participantCount);
+					newGroup.setCategory(groupDTO.getCode());
+					scheduleGroupMapper.insert(newGroup);
+					realGroupId = newGroup.getId();
+				}
+			}
+
 			MartialScheduleDetail detail = scheduleDetailMapper.selectOne(
 				new QueryWrapper<MartialScheduleDetail>()
-					.eq("schedule_group_id", groupDTO.getId())
+					.eq("schedule_group_id", realGroupId)
 					.eq("is_deleted", 0)
 					.last("LIMIT 1")
 			);
 
 			if (detail == null) {
 				detail = new MartialScheduleDetail();
-				detail.setScheduleGroupId(groupDTO.getId());
+				detail.setScheduleGroupId(realGroupId);
 				detail.setCompetitionId(dto.getCompetitionId());
 			}
 
@@ -460,7 +519,7 @@ public class MartialScheduleServiceImpl extends ServiceImpl<MartialScheduleMappe
 
 			// 1.5 同步更新项目的venue_id，保持数据一致性
 			if (groupDTO.getVenueId() != null) {
-				MartialScheduleGroup group = scheduleGroupMapper.selectById(groupDTO.getId());
+				MartialScheduleGroup group = scheduleGroupMapper.selectById(realGroupId);
 				if (group != null && group.getProjectId() != null) {
 					MartialProject project = projectService.getById(group.getProjectId());
 					if (project != null) {
@@ -473,12 +532,30 @@ public class MartialScheduleServiceImpl extends ServiceImpl<MartialScheduleMappe
 			// 2. 更新参赛者信息
 			if (groupDTO.getParticipants() != null) {
 				for (ParticipantDTO participantDTO : groupDTO.getParticipants()) {
-					MartialScheduleParticipant participant = scheduleParticipantMapper.selectById(participantDTO.getId());
+					// Query by participant_id (registration ID) and schedule_group_id, not by primary key
+					MartialScheduleParticipant participant = scheduleParticipantMapper.selectOne(
+						new QueryWrapper<MartialScheduleParticipant>()
+							.eq("participant_id", participantDTO.getId())
+							.eq("schedule_group_id", realGroupId)
+							.eq("is_deleted", 0)
+							.last("LIMIT 1")
+					);
 					if (participant != null) {
 						participant.setCheckInStatus(participantDTO.getStatus());
 						participant.setPerformanceOrder(participantDTO.getSortOrder());
 						participant.setScheduleStatus("draft");
 						scheduleParticipantMapper.updateById(participant);
+					} else {
+						// Create new participant record if not exists
+						MartialScheduleParticipant newParticipant = new MartialScheduleParticipant();
+						newParticipant.setScheduleGroupId(realGroupId);
+						newParticipant.setScheduleDetailId(detail.getId()); // Set schedule_detail_id
+						newParticipant.setParticipantId(Long.valueOf(participantDTO.getId()));
+						newParticipant.setOrganization(participantDTO.getSchoolUnit());
+						newParticipant.setCheckInStatus(participantDTO.getStatus());
+						newParticipant.setPerformanceOrder(participantDTO.getSortOrder());
+						newParticipant.setScheduleStatus("draft");
+						scheduleParticipantMapper.insert(newParticipant);
 					}
 				}
 			}