feat: query set circle detect

@@ -116,10 +116,17 @@ func (querySetService *QuerySetService) DependencyGraph(ctx *domain.Context, dep
 	defer func() {
 	defer func() {
 		transactionContext.RollbackTransaction()
 		transactionContext.RollbackTransaction()
 	}()
 	}()
+
+	svr, _ := factory.FastQuerySetServices(transactionContext)
+	data, err := svr.DependencyGraph(ctx, dependencyGraphQuery.QuerySetId)
+	if err != nil {
+		return nil, factory.FastError(err)
+	}
+
 	if err := transactionContext.CommitTransaction(); err != nil {
 	if err := transactionContext.CommitTransaction(); err != nil {
 		return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
 		return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
 	}
 	}
-	return nil, nil
+	return data, nil
 }
 }
 
 
 // 返回查询集合服务
 // 返回查询集合服务

@@ -27,6 +27,18 @@ type QueryComponent struct {
 	SelectFromTables []QueryComponentTable `json:"-"` //selectTables
 	SelectFromTables []QueryComponentTable `json:"-"` //selectTables
 	Description      string                `json:"description"`
 	Description      string                `json:"description"`
 }
 }
+
+func (qc QueryComponent) AllSelectExpr() []SelectExpr {
+	var res = make([]SelectExpr, 0)
+	for _, s := range qc.Selects {
+		res = append(res, s.SelectExpr)
+		if len(s.SubSelects) > 0 {
+			res = append(res, s.SubSelects...)
+		}
+	}
+	return res
+}
+
 type ConditionExpr struct { // 条件表达式
 type ConditionExpr struct { // 条件表达式
 	Id             string    `json:"id"`
 	Id             string    `json:"id"`
 	FieldLeft      FieldExpr `json:"fieldLeft"`
 	FieldLeft      FieldExpr `json:"fieldLeft"`
@@ -35,6 +47,16 @@ type ConditionExpr struct { // 条件表达式
 	AndOr          string    `json:"andOr"` // and or
 	AndOr          string    `json:"andOr"` // and or
 }
 }
 
 
+func (c ConditionExpr) Equal(compare ConditionExpr) bool {
+	return c.OperatorSymbol == compare.OperatorSymbol &&
+		c.FieldLeft.ExprSql == compare.FieldLeft.ExprSql &&
+		c.FieldRight.ExprSql == compare.FieldRight.ExprSql
+}
+
+func (c ConditionExpr) ExprHuman() string {
+	return c.FieldLeft.ExprHuman + c.OperatorSymbol + c.FieldRight.ExprHuman
+}
+
 type SelectExpr struct { // 查询表达式
 type SelectExpr struct { // 查询表达式
 	Id         string    `json:"id"`
 	Id         string    `json:"id"`
 	FieldLeft  FieldExpr `json:"fieldLeft"`
 	FieldLeft  FieldExpr `json:"fieldLeft"`
@@ -42,6 +64,16 @@ type SelectExpr struct { // 查询表达式
 	Type       string    `json:"type"`       // 1.拆分 2.拆方赋值 3.正常赋值
 	Type       string    `json:"type"`       // 1.拆分 2.拆方赋值 3.正常赋值
 	//SubGroup    []SelectExpr `json:"subGroup,omitempty"`
 	//SubGroup    []SelectExpr `json:"subGroup,omitempty"`
 }
 }
+
+func (s SelectExpr) Equal(compare SelectExpr) bool {
+	return s.FieldLeft.ExprSql == compare.FieldLeft.ExprSql &&
+		s.FieldRight.ExprSql == compare.FieldRight.ExprSql
+}
+
+func (c SelectExpr) ExprHuman() string {
+	return c.FieldLeft.ExprHuman + "=" + c.FieldRight.ExprHuman
+}
+
 type SelectExprGroup struct { // 查询表达式
 type SelectExprGroup struct { // 查询表达式
 	SelectExpr
 	SelectExpr
 	SubSelects []SelectExpr `json:"subSelects,omitempty"`
 	SubSelects []SelectExpr `json:"subSelects,omitempty"`
@@ -50,8 +82,8 @@ type SelectExprGroup struct { // 查询表达式
 type FieldExpr struct {
 type FieldExpr struct {
 	//LabelColumns []LabelColumn `json:"labelColumns"`
 	//LabelColumns []LabelColumn `json:"labelColumns"`
 	TableFields []TableField `json:"tableFields"`
 	TableFields []TableField `json:"tableFields"`
-	//ExprHuman    string        `json:"exprHuman"`
-	ExprSql string `json:"exprSql"`
+	ExprHuman   string       `json:"exprHuman"`
+	ExprSql     string       `json:"exprSql"`
 }
 }
 
 
 type LabelColumn struct {
 type LabelColumn struct {
@@ -101,16 +133,32 @@ func NewQueryComponentTable(t *Table) QueryComponentTable {
 	}
 	}
 }
 }
 
 
-func ConditionsToMapById(items []*ConditionExpr) map[string]*ConditionExpr {
-	var res = make(map[string]*ConditionExpr)
+func QueryComponentsToMapById(items []*QueryComponent) map[string]*QueryComponent {
+	var res = make(map[string]*QueryComponent)
+	for i := range items {
+		res[items[i].Id] = items[i]
+	}
+	return res
+}
+
+func ConditionsToMapById(items []ConditionExpr) map[string]ConditionExpr {
+	var res = make(map[string]ConditionExpr)
+	for i := range items {
+		res[items[i].Id] = items[i]
+	}
+	return res
+}
+
+func SelectsToMapById(items []SelectExprGroup) map[string]SelectExprGroup {
+	var res = make(map[string]SelectExprGroup)
 	for i := range items {
 	for i := range items {
 		res[items[i].Id] = items[i]
 		res[items[i].Id] = items[i]
 	}
 	}
 	return res
 	return res
 }
 }
 
 
-func SelectsToMapById(items []*SelectExprGroup) map[string]*SelectExprGroup {
-	var res = make(map[string]*SelectExprGroup)
+func SelectsExprToMapById(items []SelectExpr) map[string]SelectExpr {
+	var res = make(map[string]SelectExpr)
 	for i := range items {
 	for i := range items {
 		res[items[i].Id] = items[i]
 		res[items[i].Id] = items[i]
 	}
 	}

@@ -113,3 +113,10 @@ func (t *Table) MatchField(field *Field) (*Field, bool) {
 	}
 	}
 	return nil, false
 	return nil, false
 }
 }
+
+func (t *Table) DependencyTables() []int {
+	if t.TableInfo == nil {
+		return []int{}
+	}
+	return t.TableInfo.DependencyTables
+}

@@ -3,6 +3,7 @@ package dao
 import (
 import (
 	pgTransaction "github.com/linmadan/egglib-go/transaction/pg"
 	pgTransaction "github.com/linmadan/egglib-go/transaction/pg"
 	"gitlab.fjmaimaimai.com/allied-creation/character-library-metadata-bastion/pkg/domain"
 	"gitlab.fjmaimaimai.com/allied-creation/character-library-metadata-bastion/pkg/domain"
+	"time"
 )
 )
 
 
 func TableDelete(ptr *pgTransaction.TransactionContext, tableId int, tableType domain.TableType) error {
 func TableDelete(ptr *pgTransaction.TransactionContext, tableId int, tableType domain.TableType) error {
@@ -10,3 +11,9 @@ func TableDelete(ptr *pgTransaction.TransactionContext, tableId int, tableType d
 	_, err := ptr.PgTx.Exec(sql, tableId, tableType.ToString())
 	_, err := ptr.PgTx.Exec(sql, tableId, tableType.ToString())
 	return err
 	return err
 }
 }
+
+func TableSoftDelete(ptr *pgTransaction.TransactionContext, tableId int, tableType domain.TableType) error {
+	sql := "update metadata.tables set deleted_at=? where table_id = ? and table_type = ?"
+	_, err := ptr.PgTx.Exec(sql, time.Now(), tableId, tableType.ToString())
+	return err
+}

@@ -60,6 +60,20 @@ func (ptr *PGLogService) Log(logType domain.LogType, sourceId int, logEntry Log)
 	return err
 	return err
 }
 }
 
 
+type FastSourceLog struct {
+	LogType  domain.LogType
+	SourceId int
+	LogEntry Log
+}
+
+func NewFastSourceLog(logType domain.LogType, sourceId int, logEntry Log) FastSourceLog {
+	return FastSourceLog{
+		LogType:  logType,
+		SourceId: sourceId,
+		LogEntry: logEntry,
+	}
+}
+
 func (ptr *PGLogService) NewLogEntry() domain.LogEntry {
 func (ptr *PGLogService) NewLogEntry() domain.LogEntry {
 	return domain.LogEntry{}
 	return domain.LogEntry{}
 }
 }
@@ -396,3 +410,53 @@ func (l *CopyQuerySetLog) Content() string {
 	return fmt.Sprintf(`%s"%s"复制为%s"%s""`, domain.EnumsDescription(domain.ObjectTypeMap, l.From.Type), l.From.Name,
 	return fmt.Sprintf(`%s"%s"复制为%s"%s""`, domain.EnumsDescription(domain.ObjectTypeMap, l.From.Type), l.From.Name,
 		domain.EnumsDescription(domain.ObjectTypeMap, l.To.Type), l.To.Name)
 		domain.EnumsDescription(domain.ObjectTypeMap, l.To.Type), l.To.Name)
 }
 }
+
+type EditQuerySetConditionLog struct {
+	domain.LogEntry
+	OperationType domain.OperationType
+	Sources       []string
+	SourceTargets [][]string
+}
+
+func (l *EditQuerySetConditionLog) OperateType() string {
+	return l.OperationType.ToString()
+}
+
+func (l *EditQuerySetConditionLog) Content() string {
+	if l.OperationType == domain.AddSetCondition {
+		return fmt.Sprintf("新增条件：%v", strings.Join(l.Sources, ";"))
+	}
+	if l.OperationType == domain.EditSetCondition {
+		items := make([]string, 0)
+		for _, sourceTarget := range l.SourceTargets {
+			items = append(items, fmt.Sprintf("%v 修改为 %v", sourceTarget[0], sourceTarget[1]))
+		}
+		return fmt.Sprintf("编辑条件：%v", strings.Join(items, ";"))
+	}
+	return "删除条件：" + strings.Join(l.Sources, ";")
+}
+
+type EditSelectConditionLog struct {
+	domain.LogEntry
+	OperationType domain.OperationType // 编辑类型 1:add 2.edit 3.delete
+	Sources       []string
+	SourceTargets [][]string
+}
+
+func (l *EditSelectConditionLog) OperateType() string {
+	return l.OperationType.ToString()
+}
+
+func (l *EditSelectConditionLog) Content() string {
+	if l.OperationType == domain.AddSelectCondition {
+		return fmt.Sprintf("新增拆分规则：%v", strings.Join(l.Sources, ";"))
+	}
+	if l.OperationType == domain.EditSelectCondition {
+		items := make([]string, 0)
+		for _, sourceTarget := range l.SourceTargets {
+			items = append(items, fmt.Sprintf("%v 修改为 %v", sourceTarget[0], sourceTarget[1]))
+		}
+		return fmt.Sprintf("编辑拆分规则：%v", strings.Join(items, ";"))
+	}
+	return "删除拆分规则：" + strings.Join(l.Sources, ";")
+}

@@ -91,14 +91,16 @@ func (ptr *QuerySetService) Update(ctx *domain.Context, querySetId int, queryCom
 	if err != nil {
 	if err != nil {
 		return err
 		return err
 	}
 	}
-	// 调用底层的组装sql
 
 
 	// 生成Table
 	// 生成Table
 	masterTable := queryComponents[0].MasterTable
 	masterTable := queryComponents[0].MasterTable
-	table, err := ptr.CreateOrReFreshQuerySetTable(ctx, qs, masterTable, queryComponents)
+	table, err := ptr.CreateOrUpdateQuerySetTable(ctx, qs, masterTable, queryComponents)
 	if err != nil {
 	if err != nil {
 		return err
 		return err
 	}
 	}
+
+	// 调用底层的组装sql
+
 	// 生成日志
 	// 生成日志
 	if err = ptr.UpdateQuerySetLog(ctx, qs, queryComponents); err != nil {
 	if err = ptr.UpdateQuerySetLog(ctx, qs, queryComponents); err != nil {
 		return err
 		return err
@@ -113,14 +115,196 @@ func (ptr *QuerySetService) Update(ctx *domain.Context, querySetId int, queryCom
 }
 }
 
 
 func (ptr *QuerySetService) UpdateQuerySetLog(ctx *domain.Context, querySet *domain.QuerySet, queryComponents []*domain.QueryComponent) error {
 func (ptr *QuerySetService) UpdateQuerySetLog(ctx *domain.Context, querySet *domain.QuerySet, queryComponents []*domain.QueryComponent) error {
+	var res = make([]FastSourceLog, 0)
+	if logs := conditionsEditLog(ctx, querySet, queryComponents); len(logs) > 0 {
+		res = append(res, logs...)
+	}
+	if logs := selectsEditLog(ctx, querySet, queryComponents); len(logs) > 0 {
+		res = append(res, logs...)
+	}
+
+	for _, l := range res {
+		FastLog(ptr.transactionContext, l.LogType, l.SourceId, l.LogEntry)
+	}
 	return nil
 	return nil
 }
 }
 
 
-func (ptr *QuerySetService) CreateOrReFreshQuerySetTable(ctx *domain.Context, querySet *domain.QuerySet, masterTable domain.QueryComponentTable, queryComponents []*domain.QueryComponent) (*domain.Table, error) {
+func conditionsEditLog(ctx *domain.Context, querySet *domain.QuerySet, queryComponents []*domain.QueryComponent) []FastSourceLog {
+	var res = make([]FastSourceLog, 0)
+	oldQCs := domain.QueryComponentsToMapById(querySet.QueryComponents)
+	sourceId := querySet.QuerySetId
+	entry := domain.NewLogEntry(querySet.Name, querySet.Type, domain.UnKnown, ctx)
+
+	// 新增条件判断
+	addExprList := make([]string, 0)
+	editExprList := make([][]string, 0)
+	deleteExprList := make([]string, 0)
+
+	for _, item := range queryComponents {
+		if len(item.Id) == 0 {
+			continue
+		}
+		oldItem, ok := oldQCs[item.Id]
+		if !ok {
+			continue
+		}
+
+		// 条件判断编辑情况
+		mapOldItems := domain.ConditionsToMapById(oldItem.Conditions)
+		mapNewItems := domain.ConditionsToMapById(item.Conditions)
+		for _, add := range item.Conditions {
+			if len(add.Id) != 0 {
+				continue
+			}
+			addExprList = append(addExprList, add.ExprHuman())
+		}
+
+		// 编辑
+		for _, add := range item.Conditions {
+			if len(add.Id) == 0 {
+				continue
+			}
+			v, ok := mapOldItems[add.Id]
+			if !ok {
+				continue
+			}
+			if add.Equal(v) {
+				continue
+			}
+			editExprList = append(editExprList, []string{v.ExprHuman(), add.ExprHuman()})
+		}
+
+		// 删除
+		for _, item := range oldItem.Conditions {
+			if len(item.Id) == 0 {
+				continue
+			}
+			_, ok := mapNewItems[item.Id]
+			if ok {
+				continue
+			}
+			deleteExprList = append(deleteExprList, item.ExprHuman())
+		}
+
+	}
+
+	if len(addExprList) > 0 {
+		res = append(res, NewFastSourceLog(domain.QuerySetLog, sourceId, &EditQuerySetConditionLog{
+			LogEntry:      entry,
+			OperationType: domain.AddSetCondition,
+			Sources:       addExprList,
+		}))
+	}
+
+	if len(editExprList) > 0 {
+		res = append(res, NewFastSourceLog(domain.QuerySetLog, sourceId, &EditQuerySetConditionLog{
+			LogEntry:      entry,
+			OperationType: domain.EditSetCondition,
+			SourceTargets: editExprList,
+		}))
+	}
+
+	if len(deleteExprList) > 0 {
+		res = append(res, NewFastSourceLog(domain.QuerySetLog, sourceId, &EditQuerySetConditionLog{
+			LogEntry:      entry,
+			OperationType: domain.AddSetCondition,
+			Sources:       deleteExprList,
+		}))
+	}
+	return res
+}
+
+func selectsEditLog(ctx *domain.Context, querySet *domain.QuerySet, queryComponents []*domain.QueryComponent) []FastSourceLog {
+	var res = make([]FastSourceLog, 0)
+	oldQCs := domain.QueryComponentsToMapById(querySet.QueryComponents)
+	//newQCs := domain.QueryComponentsToMapById(queryComponents)
+	sourceId := querySet.QuerySetId
+	entry := domain.NewLogEntry(querySet.Name, querySet.Type, domain.UnKnown, ctx)
+
+	addExprList := make([]string, 0)
+	editExprList := make([][]string, 0)
+	deleteExprList := make([]string, 0)
+	for _, item := range queryComponents {
+		if len(item.Id) == 0 {
+			continue
+		}
+		oldItem, ok := oldQCs[item.Id]
+		if !ok {
+			continue
+		}
+
+		// 条件判断编辑情况
+		allOldSelectExpr := oldItem.AllSelectExpr()
+		mapOldConditions := domain.SelectsExprToMapById(allOldSelectExpr)
+		allNewSelectExpr := item.AllSelectExpr()
+		mapNewConditions := domain.SelectsExprToMapById(allNewSelectExpr)
+		// 新增条件判断
+		for _, item := range allNewSelectExpr {
+			if len(item.Id) != 0 {
+				continue
+			}
+			addExprList = append(addExprList, item.ExprHuman())
+		}
+		// 编辑
+		for _, item := range allNewSelectExpr {
+			if len(item.Id) == 0 {
+				continue
+			}
+			v, ok := mapOldConditions[item.Id]
+			if !ok {
+				continue
+			}
+			if item.Equal(v) {
+				continue
+			}
+			editExprList = append(editExprList, []string{v.ExprHuman(), item.ExprHuman()})
+		}
+
+		// 删除
+		for _, item := range allOldSelectExpr {
+			if len(item.Id) == 0 {
+				continue
+			}
+			_, ok := mapNewConditions[item.Id]
+			if ok {
+				continue
+			}
+			deleteExprList = append(deleteExprList, item.ExprHuman())
+		}
+	}
+
+	if len(addExprList) > 0 {
+		res = append(res, NewFastSourceLog(domain.QuerySetLog, sourceId, &EditSelectConditionLog{
+			LogEntry:      entry,
+			OperationType: domain.AddSelectCondition,
+			Sources:       addExprList,
+		}))
+	}
+
+	if len(editExprList) > 0 {
+		res = append(res, NewFastSourceLog(domain.QuerySetLog, sourceId, &EditSelectConditionLog{
+			LogEntry:      entry,
+			OperationType: domain.EditSelectCondition,
+			SourceTargets: editExprList,
+		}))
+	}
+
+	if len(deleteExprList) > 0 {
+		res = append(res, NewFastSourceLog(domain.QuerySetLog, sourceId, &EditSelectConditionLog{
+			LogEntry:      entry,
+			OperationType: domain.DeleteSelectCondition,
+			Sources:       deleteExprList,
+		}))
+	}
+	return res
+}
+
+func (ptr *QuerySetService) CreateOrUpdateQuerySetTable(ctx *domain.Context, querySet *domain.QuerySet, masterTable domain.QueryComponentTable, queryComponents []*domain.QueryComponent) (*domain.Table, error) {
 	var (
 	var (
 		err              error
 		err              error
 		foundMasterTable *domain.Table
 		foundMasterTable *domain.Table
 	)
 	)
+	dependencyTables := querySet.GetDependencyTables(queryComponents)
 	tableRepository, _ := repository.NewTableRepository(ptr.transactionContext)
 	tableRepository, _ := repository.NewTableRepository(ptr.transactionContext)
 	foundMasterTable, err = tableRepository.FindOne(map[string]interface{}{"context": ctx, "tableId": masterTable.TableId})
 	foundMasterTable, err = tableRepository.FindOne(map[string]interface{}{"context": ctx, "tableId": masterTable.TableId})
 	if err != nil {
 	if err != nil {
@@ -136,8 +320,24 @@ func (ptr *QuerySetService) CreateOrReFreshQuerySetTable(ctx *domain.Context, qu
 		table.DataFields = masterTable.Fields
 		table.DataFields = masterTable.Fields
 		table.UpdatedAt = time.Now()
 		table.UpdatedAt = time.Now()
 	}
 	}
+
+	// 循环依赖判断
+	tableDependencyService, _ := NewTableDependencyService(ptr.transactionContext)
+	if len(dependencyTables) > 0 {
+		_, tables, err := tableRepository.Find(map[string]interface{}{"context": ctx, "tableIds": dependencyTables, "tableTypes": []string{domain.SchemaTable.ToString(), domain.SubProcessTable.ToString()}})
+		if err != nil {
+			return nil, err
+		}
+		if len(tables) > 0 {
+			tree := tableDependencyService.TableDependTree(tables, querySet.QuerySetInfo.BindTableId)
+			if tableDependencyService.Detect(ctx, tree.EdgesArray()) {
+				return nil, NewCircleDependError(tableDependencyService.CircleTable(), querySet)
+			}
+		}
+	}
+
 	table.TableInfo.ApplyOnModule = domain.ModuleAll
 	table.TableInfo.ApplyOnModule = domain.ModuleAll
-	table.TableInfo.DependencyTables = querySet.GetDependencyTables(queryComponents)
+	table.TableInfo.DependencyTables = dependencyTables
 	table, err = tableRepository.Save(table)
 	table, err = tableRepository.Save(table)
 	if err != nil {
 	if err != nil {
 		return nil, err
 		return nil, err
@@ -257,10 +457,19 @@ func (ptr *QuerySetService) Delete(ctx *domain.Context, querySetId int) error {
 		return err
 		return err
 	}
 	}
 	querySetRepository, _ := repository.NewQuerySetRepository(ptr.transactionContext)
 	querySetRepository, _ := repository.NewQuerySetRepository(ptr.transactionContext)
+	tableDependencyService, _ := NewTableDependencyService(ptr.transactionContext)
 	for i := range querySets {
 	for i := range querySets {
 		if _, err := querySetRepository.Remove(querySets[i]); err != nil {
 		if _, err := querySetRepository.Remove(querySets[i]); err != nil {
 			return err
 			return err
 		}
 		}
+		if querySets[i].QuerySetInfo.BindTableId > 0 {
+			if err := tableDependencyService.HasDependencyError(ctx, querySets[i].QuerySetInfo.BindTableId); err != nil {
+				return err
+			}
+			if err := dao.TableSoftDelete(ptr.transactionContext, querySets[i].QuerySetInfo.BindTableId, domain.TableType(querySets[i].Type)); err != nil {
+				return err
+			}
+		}
 	}
 	}
 	// 日志
 	// 日志
 	if len(querySets) > 0 {
 	if len(querySets) > 0 {
@@ -353,7 +562,7 @@ func insertQuerySetsByIndex(list []*domain.QuerySet, item *domain.QuerySet, inde
 func (ptr *QuerySetService) DependencyGraph(ctx *domain.Context, querySetId int) (interface{}, error) {
 func (ptr *QuerySetService) DependencyGraph(ctx *domain.Context, querySetId int) (interface{}, error) {
 	tableRepository, _ := repository.NewTableRepository(ptr.transactionContext)
 	tableRepository, _ := repository.NewTableRepository(ptr.transactionContext)
 	_, tables, err := tableRepository.Find(map[string]interface{}{"context": ctx, "tableTypes": []string{domain.SchemaTable.ToString(), domain.SubProcessTable.ToString()}})
 	_, tables, err := tableRepository.Find(map[string]interface{}{"context": ctx, "tableTypes": []string{domain.SchemaTable.ToString(), domain.SubProcessTable.ToString()}})
-	dependencies := make([]dependency, 0)
+	var dependencies TableDependTree = NewTableDependTree(nil, nil)
 	if err != nil {
 	if err != nil {
 		return dependencies, err
 		return dependencies, err
 	}
 	}
@@ -368,89 +577,10 @@ func (ptr *QuerySetService) DependencyGraph(ctx *domain.Context, querySetId int)
 	if querySet.QuerySetInfo.BindTableId == 0 {
 	if querySet.QuerySetInfo.BindTableId == 0 {
 		return dependencies, nil
 		return dependencies, nil
 	}
 	}
-	dependencies = makeDependencyGraph(querySet.QuerySetInfo.BindTableId, tables)
-	return dependencies, nil
-}
-
-func makeDependencyGraph(bindTableId int, tables []*domain.Table) []dependency {
-	dependencies := make([]dependency, 0)
-	tableMap := make(map[int]*domain.Table)
-	graph := make(map[int][]int, 0)
-	for i := range tables {
-		tableMap[tables[i].TableId] = tables[i]
-		graph[tables[i].TableId] = tables[i].TableInfo.DependencyTables
-	}
-	// parent depend
-	dependTables := []int{bindTableId}
 
 
-	foundDependency := make(map[string]bool, 0)
-	for {
-		if len(dependTables) == 0 {
-			break
-		}
-		parent := dependTables[0]
-		parentTable, ok := tableMap[parent]
-		if !ok {
-			continue
-		}
-		for _, dependChildId := range parentTable.TableInfo.DependencyTables {
-			dependChild, ok := tableMap[dependChildId]
-			if !ok {
-				continue
-			}
-			depend := NewDependency(parentTable.TableId, dependChild)
-			if _, ok := foundDependency[depend.String()]; !ok {
-				dependencies = append(dependencies, depend)
-			}
-		}
-		dependTables = dependTables[1:]
-	}
-
-	// dependToChild
-	return dependencies
-}
-
-func dependParents(tables []*domain.Table, tableMap map[int]*domain.Table, bindTableId int) []int {
-	foundDependTable := make(map[int]bool)
-	traceStack := []int{bindTableId}
-	res := []int{bindTableId}
-	for {
-		if len(traceStack) == 0 {
-			break
-		}
-		last := traceStack[0]
-		traceStack = traceStack[1:]
-		table := tableMap[last]
-		if table == nil {
-			continue
-		}
-		// for
-		if _, ok := foundDependTable[last]; !ok {
-			foundDependTable[last] = true
-		}
-	}
-	return res
-}
-
-func NewDependency(parentId int, child *domain.Table) dependency {
-	return dependency{
-		Id: parentId,
-	}
-}
-
-type dependency struct {
-	// 标识
-	Id int `json:"id"`
-	// 表类型 MainTable:主表 SideTable:副表 SubTable:分表  ExcelTable:Excel表
-	Type string `json:"type"`
-	// 名称
-	Name string `json:"name"`
-	// 依赖的表
-	DependChildId int `json:"dependChildId"`
-}
-
-func (d dependency) String() string {
-	return fmt.Sprintf("%d-%d", d.Id, d.DependChildId)
+	tableDependencyService, _ := NewTableDependencyService(ptr.transactionContext)
+	dependencies = tableDependencyService.TableDependTree(tables, querySet.QuerySetInfo.BindTableId)
+	return dependencies, nil
 }
 }
 
 
 func (ptr *QuerySetService) GetAllChild(ctx *domain.Context, querySetId int, includeSelf bool, onlyNextLevel bool) ([]*domain.QuerySet, error) {
 func (ptr *QuerySetService) GetAllChild(ctx *domain.Context, querySetId int, includeSelf bool, onlyNextLevel bool) ([]*domain.QuerySet, error) {

+package domainService
+
+import (
+	"github.com/stretchr/testify/assert"
+	"gitlab.fjmaimaimai.com/allied-creation/character-library-metadata-bastion/pkg/domain"
+	"testing"
+)
+
+func TestSelectsEditLog(t *testing.T) {
+	oldQueryComponents := []*domain.QueryComponent{
+		&domain.QueryComponent{
+			Id: "1",
+			Selects: []domain.SelectExprGroup{
+				{
+					SelectExpr: domain.SelectExpr{
+						Id: "c_1",
+						FieldLeft: domain.FieldExpr{
+							ExprSql:   "t.a",
+							ExprHuman: "T.a",
+						},
+						FieldRight: domain.FieldExpr{
+							ExprSql:   "t.b",
+							ExprHuman: "T.b",
+						},
+					},
+					SubSelects: []domain.SelectExpr{
+						{
+							Id: "c_s_1",
+							FieldLeft: domain.FieldExpr{
+								ExprSql:   "t.a",
+								ExprHuman: "T.a",
+							},
+							FieldRight: domain.FieldExpr{
+								ExprSql:   "t.b",
+								ExprHuman: "T.b",
+							},
+						},
+					},
+				},
+				{
+					SelectExpr: domain.SelectExpr{
+						Id: "c_2",
+						FieldLeft: domain.FieldExpr{
+							ExprSql:   "t.c",
+							ExprHuman: "T.c",
+						},
+						FieldRight: domain.FieldExpr{
+							ExprSql:   "t.d",
+							ExprHuman: "T.d",
+						},
+					},
+				},
+			},
+		},
+	}
+	newQueryComponents := []*domain.QueryComponent{
+		&domain.QueryComponent{
+			Id: "1",
+			Selects: []domain.SelectExprGroup{
+				{
+					SelectExpr: domain.SelectExpr{
+						Id: "c_1",
+						FieldLeft: domain.FieldExpr{
+							ExprSql:   "t.a",
+							ExprHuman: "T.a",
+						},
+						FieldRight: domain.FieldExpr{
+							ExprSql:   "t.c",
+							ExprHuman: "T.c",
+						},
+					},
+				},
+			},
+		},
+	}
+	querySet := &domain.QuerySet{
+		QuerySetId:      1,
+		Type:            domain.SchemaTable.ToString(),
+		Flag:            domain.FlagSet,
+		Name:            "测试集合",
+		QueryComponents: oldQueryComponents,
+	}
+	ctx := &domain.Context{CompanyId: 1, OperatorId: 1, OperatorName: "test"}
+	logs := selectsEditLog(ctx, querySet, newQueryComponents)
+	assert.Equal(t, len(logs), 3)
+}
+
+func TestConditionsEditLog(t *testing.T) {
+	oldQueryComponents := []*domain.QueryComponent{
+		&domain.QueryComponent{
+			Id: "1",
+			Conditions: []domain.ConditionExpr{
+				{
+					Id: "c_1",
+					FieldLeft: domain.FieldExpr{
+						ExprSql:   "t.a",
+						ExprHuman: "T.a",
+					},
+					FieldRight: domain.FieldExpr{
+						ExprSql:   "t.b",
+						ExprHuman: "T.b",
+					},
+					OperatorSymbol: "=",
+				},
+				{
+					Id: "c_2",
+					FieldLeft: domain.FieldExpr{
+						ExprSql:   "t.c",
+						ExprHuman: "T.c",
+					},
+					FieldRight: domain.FieldExpr{
+						ExprSql:   "t.d",
+						ExprHuman: "T.d",
+					},
+					OperatorSymbol: "=",
+				},
+			},
+		},
+	}
+	newQueryComponents := []*domain.QueryComponent{
+		&domain.QueryComponent{
+			Id: "1",
+			Conditions: []domain.ConditionExpr{
+				{
+					Id: "c_1",
+					FieldLeft: domain.FieldExpr{
+						ExprSql:   "t.a",
+						ExprHuman: "T.a",
+					},
+					FieldRight: domain.FieldExpr{
+						ExprSql:   "t.c",
+						ExprHuman: "T.c",
+					},
+					OperatorSymbol: "=",
+				},
+			},
+		},
+	}
+	querySet := &domain.QuerySet{
+		QuerySetId:      1,
+		Type:            domain.SchemaTable.ToString(),
+		Flag:            domain.FlagSet,
+		Name:            "测试集合",
+		QueryComponents: oldQueryComponents,
+	}
+	ctx := &domain.Context{CompanyId: 1, OperatorId: 1, OperatorName: "test"}
+	logs := conditionsEditLog(ctx, querySet, newQueryComponents)
+	assert.Equal(t, len(logs), 2)
+}

@@ -64,8 +64,12 @@ func (ptr *DeleteDataTableService) DeleteTables(ctx *domain.Context, tables ...*
 		return nil
 		return nil
 	}
 	}
 	tableRepository, _ := repository.NewTableRepository(ptr.transactionContext)
 	tableRepository, _ := repository.NewTableRepository(ptr.transactionContext)
+	tableDependencyService, _ := NewTableDependencyService(ptr.transactionContext)
 	var tableIds []int
 	var tableIds []int
 	for _, t := range tables {
 	for _, t := range tables {
+		if err := tableDependencyService.HasDependencyError(ctx, t.TableId); err != nil {
+			return err
+		}
 		if _, err := tableRepository.Remove(t); err != nil {
 		if _, err := tableRepository.Remove(t); err != nil {
 			return err
 			return err
 		}
 		}

+package domainService
+
+import (
+	"errors"
+	"fmt"
+	pgTransaction "github.com/linmadan/egglib-go/transaction/pg"
+	"github.com/zeromicro/go-zero/core/collection"
+	"gitlab.fjmaimaimai.com/allied-creation/character-library-metadata-bastion/pkg/domain"
+	"gitlab.fjmaimaimai.com/allied-creation/character-library-metadata-bastion/pkg/infrastructure/repository"
+	"gitlab.fjmaimaimai.com/allied-creation/character-library-metadata-bastion/pkg/infrastructure/utils"
+)
+
+type DependencyError struct {
+	t *domain.Table
+}
+
+func (d DependencyError) Error() string {
+	return fmt.Sprintf("已关联%v:%v", domain.EnumsDescription(domain.ObjectTypeMap, d.t.TableType), d.t.Name)
+}
+
+type CircleDependError struct {
+	circleTable *domain.Table
+	querySet    *domain.QuerySet
+}
+
+func (d CircleDependError) Error() string {
+	circleTableName := ""
+	if d.circleTable != nil {
+		circleTableName = d.circleTable.Name
+	}
+	return fmt.Sprintf("循环引用%s(%s)", domain.EnumsDescription(domain.ObjectTypeMap, d.querySet.Type), circleTableName)
+}
+
+func NewCircleDependError(t *domain.Table, qs *domain.QuerySet) CircleDependError {
+	return CircleDependError{
+		circleTable: t,
+		querySet:    qs,
+	}
+}
+
+type TableDependencyService struct {
+	transactionContext    *pgTransaction.TransactionContext
+	DetectedCycleCallBack func()
+	DebugLog              func(string)
+	CircleNode            int
+	TableMap              map[int]*domain.Table
+}
+
+func NewTableDependencyService(transactionContext *pgTransaction.TransactionContext) (*TableDependencyService, error) {
+	if transactionContext == nil {
+		return nil, fmt.Errorf("transactionContext参数不能为nil")
+	} else {
+		return &TableDependencyService{
+			transactionContext: transactionContext,
+		}, nil
+	}
+}
+
+func (ptr *TableDependencyService) CircleTable() *domain.Table {
+	if ptr.TableMap == nil {
+		return nil
+	}
+	return ptr.TableMap[ptr.CircleNode]
+}
+
+func (ptr *TableDependencyService) HasDependencyError(ctx *domain.Context, dependencyTable int) error {
+	table, ok := TableHasDependency(ptr.transactionContext, ctx, dependencyTable)
+	if !ok {
+		return nil
+	}
+	return DependencyError{table}
+}
+
+func (ptr *TableDependencyService) Detect(ctx *domain.Context, edges [][]int) bool {
+	graph, nodes := ptr.BuildGraph(edges)
+
+	visiting := map[int]bool{}
+	visited := map[int]bool{}
+
+	for _, node := range nodes {
+		ptr.log("------------------------------------------\n")
+		ptr.log(fmt.Sprintf("dfs node %v \n", node))
+		if ptr.DetectCycle(graph, node, visiting, visited) {
+			return true
+		}
+	}
+	return false
+}
+
+func (ptr *TableDependencyService) BuildGraph(edges [][]int) (map[int][]int, []int) {
+	var graph = make(map[int][]int)
+	var nodes []int
+	for _, edge := range edges {
+		a, b := edge[0], edge[1]
+		if _, ok := graph[a]; !ok {
+			nodes = append(nodes, a)
+			graph[a] = make([]int, 0)
+		}
+		graph[a] = append(graph[a], b)
+	}
+	return graph, nodes
+}
+
+func (ptr *TableDependencyService) DetectCycle(graph map[int][]int, node int, visiting, visited map[int]bool) bool {
+	if _, found := visited[node]; found {
+		ptr.log(fmt.Sprintf("node %d is already visited(black) -> skip\n", node))
+		return false
+	}
+
+	if _, found := visiting[node]; found {
+		ptr.log(fmt.Sprintf("node %d is in visiting(gray) -> a cycle is detected\n\n", node))
+		ptr.CircleNode = node
+		return true
+	}
+	visiting[node] = true
+	ptr.log(fmt.Sprintf("nodes in visiting(gray): %+v\n", visiting))
+	ptr.log(fmt.Sprintf("nodes in visited(black): %+v\n\n", visited))
+
+	for _, descendant := range graph[node] {
+		ptr.log(fmt.Sprintf("current node: node %d\n", node))
+		ptr.log(fmt.Sprintf("visit descendant: node %d\n", descendant))
+		if ptr.DetectCycle(graph, descendant, visiting, visited) {
+			return true
+		}
+	}
+
+	delete(visiting, node)
+	visited[node] = true
+	ptr.log(fmt.Sprintf("finish explore node %d\n", node))
+	ptr.log(fmt.Sprintf("nodes in visiting(gray): %+v\n", visiting))
+	ptr.log(fmt.Sprintf("nodes in visited(black): %+v\n\n", visited))
+	return false
+}
+
+func (ptr *TableDependencyService) log(text string) {
+	if ptr.DebugLog == nil {
+		return
+	}
+	ptr.DebugLog(text)
+}
+
+func (ptr *TableDependencyService) TableDependTree(tables []*domain.Table, bindTableId int) TableDependTree {
+	var (
+		parentMap = ptr.makeParentMap(tables)
+		childMap  = ptr.makeChildMap(tables)
+		rootNodes = ptr.findRootNodes(parentMap, bindTableId)
+		tree      = ptr.makeTrees(childMap, rootNodes)
+	)
+
+	tableMap := make(map[int]*domain.Table)
+	for i := range tables {
+		tableMap[tables[i].TableId] = tables[i]
+	}
+	ptr.TableMap = tableMap
+	tableDependTree := NewTableDependTree(tree, tableMap)
+	tableDependTree.NodeSelected = NewTableNode(tableMap[bindTableId])
+	return tableDependTree
+}
+func (ptr *TableDependencyService) makeParentMap(tables []*domain.Table) map[int][]int {
+	res := make(map[int][]int)
+	for i := range tables {
+		if _, ok := res[tables[i].TableId]; !ok {
+			res[tables[i].TableId] = make([]int, 0)
+		}
+		for _, t := range tables[i].TableInfo.DependencyTables {
+			if _, ok := res[t]; !ok {
+				res[t] = make([]int, 0)
+			}
+			res[t] = append(res[t], tables[i].TableId)
+		}
+	}
+	return res
+}
+func (ptr *TableDependencyService) makeChildMap(tables []*domain.Table) map[int][]int {
+	res := make(map[int][]int)
+	for i := range tables {
+		id := tables[i].TableId
+		if _, ok := res[id]; !ok {
+			res[id] = make([]int, 0)
+		}
+
+		res[id] = append(res[id], tables[i].TableInfo.DependencyTables...)
+	}
+	return res
+}
+func (ptr *TableDependencyService) findRootNodes(parentsMap map[int][]int, nodeId int) []int {
+	var rootNodes []int
+	set := collection.NewSet()
+	stack := utils.NewEmptyStack()
+	stack.Push(nodeId)
+	for {
+		if stack.Size() == 0 {
+			break
+		}
+		t := stack.Pop().(int)
+		if set.Contains(t) {
+			continue
+		}
+		set.Add(t)
+		parents, ok := parentsMap[t]
+		if !ok {
+			continue
+		}
+		if len(parents) == 0 {
+			rootNodes = append(rootNodes, t)
+		}
+		for _, item := range parents {
+			stack.Push(item)
+		}
+	}
+	return rootNodes
+}
+func (ptr *TableDependencyService) makeTrees(childMap map[int][]int, rootNodes []int) []int {
+	set := collection.NewSet()
+	stack := utils.NewEmptyStack()
+	for _, node := range rootNodes {
+		stack.Push(node)
+	}
+
+	for {
+		if stack.Size() == 0 {
+			break
+		}
+		t := stack.Pop().(int)
+		if set.Contains(t) {
+			continue
+		}
+		set.Add(t)
+		parents, ok := childMap[t]
+		if !ok {
+			continue
+		}
+		if len(parents) == 0 {
+			rootNodes = append(rootNodes, t)
+		}
+		for _, item := range parents {
+			stack.Push(item)
+		}
+	}
+	return set.KeysInt()
+}
+
+func TableHasDependency(transactionContext *pgTransaction.TransactionContext, ctx *domain.Context, dependencyTable int) (*domain.Table, bool) {
+	tableRepository, _ := repository.NewTableRepository(transactionContext)
+	table, err := tableRepository.FindOne(map[string]interface{}{"context": ctx, "dependencyTable": dependencyTable})
+	if errors.Is(err, domain.ErrorNotFound) {
+		return nil, false
+	}
+	if table == nil && err != nil {
+		return nil, false
+	}
+	return table, true
+}
+
+type TableDependTree struct {
+	Tree         []int       `json:"-"`
+	Nodes        []TableNode `json:"nodes"`
+	Edges        []TableEdge `json:"edges"`
+	NodeSelected TableNode   `json:"nodeSelected"`
+}
+
+func (td TableDependTree) EdgesArray() [][]int {
+	var res = make([][]int, 0)
+	for _, edge := range td.Edges {
+		res = append(res, []int{edge.Id, edge.DependChildId})
+	}
+	return res
+}
+
+type TableNode struct {
+	TableId int `json:"tableId"`
+	// 表类型 MainTable:主表 SideTable:副表 SubTable:分表
+	Type string `json:"type"`
+	// 名称
+	Name string `json:"name"`
+	// 依赖关联的表
+	DependencyTables []int `json:"-"`
+}
+type TableEdge struct {
+	// 标识
+	Id int `json:"tableId"`
+	// 表类型 MainTable:主表 SideTable:副表 SubTable:分表
+	Type string `json:"type"`
+	// 名称
+	Name string `json:"name"`
+	// 依赖的表
+	DependChildId int `json:"dependTableId"`
+}
+
+func NewTableDependTree(tree []int, tableMap map[int]*domain.Table) TableDependTree {
+	dependTree := TableDependTree{
+		Nodes: make([]TableNode, 0),
+		Edges: make([]TableEdge, 0),
+		Tree:  tree,
+	}
+
+	for _, node := range tree {
+		t, ok := tableMap[node]
+		if !ok {
+			continue
+		}
+		dependTree.Nodes = append(dependTree.Nodes, NewTableNode(t))
+		for _, item := range t.DependencyTables() {
+			dependTable, ok := tableMap[item]
+			if !ok {
+				continue
+			}
+			dependTree.Edges = append(dependTree.Edges, NewTableEdge(t, dependTable))
+		}
+	}
+	return dependTree
+}
+func NewTableNode(table *domain.Table) TableNode {
+	return TableNode{
+		TableId:          table.TableId,
+		Type:             table.TableType,
+		Name:             table.Name,
+		DependencyTables: table.TableInfo.DependencyTables,
+	}
+}
+func NewTableEdge(table *domain.Table, dependTable *domain.Table) TableEdge {
+	return TableEdge{
+		Id:            table.TableId,
+		Type:          table.TableType,
+		Name:          table.Name,
+		DependChildId: dependTable.TableId,
+	}
+}

+package domainService
+
+import (
+	"fmt"
+	"github.com/stretchr/testify/assert"
+	"gitlab.fjmaimaimai.com/allied-creation/character-library-metadata-bastion/pkg/domain"
+	"sort"
+	"testing"
+)
+
+func TestTableDependTree(t *testing.T) {
+	/*
+					5                      8
+			       / \                    / \
+			      1   3                  9  10
+		 	     /   / \                / \
+			    4   6   2              11 12
+			            \
+			             7
+	*/
+	tables := []*domain.Table{
+		newTable(5, 1, 3),
+		newTable(1, 4),
+		newTable(4),
+		newTable(3, 6, 2),
+		newTable(6),
+		newTable(2, 7),
+		newTable(7),
+
+		newTable(8, 9, 10),
+		newTable(10),
+		newTable(9, 11, 12),
+		newTable(11),
+		newTable(12, 9),
+	}
+	tableDependencyService := &TableDependencyService{DebugLog: func(s string) {
+		//t.Log(s)
+	}}
+
+	inputs := []struct {
+		BindTableId int
+		Trees       []int
+		Circle      bool
+	}{
+		{
+			3,
+			[]int{1, 2, 3, 4, 5, 6, 7},
+			false,
+		},
+		{
+			4,
+			[]int{1, 2, 3, 4, 5, 6, 7},
+			false,
+		},
+
+		{
+			12,
+			[]int{8, 9, 10, 11, 12},
+			true,
+		},
+		{
+			8,
+			[]int{8, 9, 10, 11, 12},
+			true,
+		},
+		{
+			10,
+			[]int{8, 9, 10, 11, 12},
+			true,
+		},
+	}
+	for _, input := range inputs {
+		tree := tableDependencyService.TableDependTree(tables, input.BindTableId)
+		got := tree.Tree
+		sort.Ints(got)
+		assert.Equal(t, got, input.Trees)
+
+		assert.Equal(t, tableDependencyService.Detect(nil, tree.EdgesArray()), input.Circle)
+	}
+}
+
+func newTable(id int, dependTables ...int) *domain.Table {
+	return &domain.Table{
+		TableId: id,
+		Name:    fmt.Sprintf("t%d", id),
+		TableInfo: &domain.TableInfo{
+			DependencyTables: dependTables,
+		},
+	}
+}

@@ -55,6 +55,13 @@ func (ptr *UpdateTableStructService) UpdateTableStruct(ctx *domain.Context, tabl
 	if _, err = tableRepository.Save(mainTable); err != nil {
 	if _, err = tableRepository.Save(mainTable); err != nil {
 		return nil, err
 		return nil, err
 	}
 	}
+	// 字段被删除
+	if len(deletes) > 0 {
+		tableDependencyService, _ := NewTableDependencyService(ptr.transactionContext)
+		if err := tableDependencyService.HasDependencyError(ctx, tableId); err != nil {
+			return nil, err
+		}
+	}
 
 
 	// Log
 	// Log
 	// 日志
 	// 日志

@@ -144,6 +144,9 @@ func (repository *TableRepository) FindOne(queryOptions map[string]interface{})
 	if v, ok := queryOptions["tableTypes"]; ok && len(v.([]string)) > 0 {
 	if v, ok := queryOptions["tableTypes"]; ok && len(v.([]string)) > 0 {
 		query.Where(`table_type in (?)`, pg.In(v.([]string)))
 		query.Where(`table_type in (?)`, pg.In(v.([]string)))
 	}
 	}
+	if v, ok := queryOptions["dependencyTable"]; ok && v.(int) > 0 {
+		query.Where(`table_info->'dependencyTables' @> '[?]'`, v.(int))
+	}
 	if err := query.First(); err != nil {
 	if err := query.First(); err != nil {
 		if err.Error() == "pg: no rows in result set" {
 		if err.Error() == "pg: no rows in result set" {
 			return nil, domain.ErrorNotFound
 			return nil, domain.ErrorNotFound
@@ -166,6 +169,9 @@ func (repository *TableRepository) Find(queryOptions map[string]interface{}) (in
 	query.SetWhereByQueryOption(fmt.Sprintf("name like '%%%v%%'", queryOptions["name"]), "name")
 	query.SetWhereByQueryOption(fmt.Sprintf("name like '%%%v%%'", queryOptions["name"]), "name")
 
 
 	query.SetWhereByQueryOption("parent_id = ?", "parentId")
 	query.SetWhereByQueryOption("parent_id = ?", "parentId")
+	if v, ok := queryOptions["tableIds"]; ok && len(v.([]int)) > 0 {
+		query.Where(`table_id in (?)`, pg.In(v.([]int)))
+	}
 	if v, ok := queryOptions["tableTypes"]; ok && len(v.([]string)) > 0 {
 	if v, ok := queryOptions["tableTypes"]; ok && len(v.([]string)) > 0 {
 		query.Where(`table_type in (?)`, pg.In(v.([]string)))
 		query.Where(`table_type in (?)`, pg.In(v.([]string)))
 	}
 	}

+package utils
+
+import "sync"
+
+// Item interface to store any data type in stack
+type Item interface{}
+
+// Stack struct which contains a list of Items
+type Stack struct {
+	items []Item
+	mutex sync.Mutex
+}
+
+// NewEmptyStack() returns a new instance of Stack with zero elements
+func NewEmptyStack() *Stack {
+	return &Stack{
+		items: nil,
+	}
+}
+
+// NewStack() returns a new instance of Stack with list of specified elements
+func NewStack(items []Item) *Stack {
+	return &Stack{
+		items: items,
+	}
+}
+
+// Push() adds new item to top of existing/empty stack
+func (stack *Stack) Push(item Item) {
+	stack.mutex.Lock()
+	defer stack.mutex.Unlock()
+
+	stack.items = append(stack.items, item)
+}
+
+// Pop() removes most recent item(top) from stack
+func (stack *Stack) Pop() Item {
+	stack.mutex.Lock()
+	defer stack.mutex.Unlock()
+
+	if len(stack.items) == 0 {
+		return nil
+	}
+
+	lastItem := stack.items[len(stack.items)-1]
+	stack.items = stack.items[:len(stack.items)-1]
+
+	return lastItem
+}
+
+// IsEmpty() returns whether the stack is empty or not (boolean result)
+func (stack *Stack) IsEmpty() bool {
+	stack.mutex.Lock()
+	defer stack.mutex.Unlock()
+
+	return len(stack.items) == 0
+}
+
+// Top() returns the last inserted item in stack without removing it.
+func (stack *Stack) Top() Item {
+	stack.mutex.Lock()
+	defer stack.mutex.Unlock()
+
+	if len(stack.items) == 0 {
+		return nil
+	}
+
+	return stack.items[len(stack.items)-1]
+}
+
+// Size() returns the number of items currently in the stack
+func (stack *Stack) Size() int {
+	stack.mutex.Lock()
+	defer stack.mutex.Unlock()
+
+	return len(stack.items)
+}
+
+// Clear() removes all items from the stack
+func (stack *Stack) Clear() {
+	stack.mutex.Lock()
+	defer stack.mutex.Unlock()
+
+	stack.items = nil
+}

@@ -22,7 +22,7 @@ func (controller *QuerySetController) CreateQuerySet() {
 func (controller *QuerySetController) UpdateQuerySet() {
 func (controller *QuerySetController) UpdateQuerySet() {
 	querySetService := service.NewQuerySetService(nil)
 	querySetService := service.NewQuerySetService(nil)
 	updateQuerySetCommand := &command.UpdateQuerySetCommand{}
 	updateQuerySetCommand := &command.UpdateQuerySetCommand{}
-	controller.Unmarshal(updateQuerySetCommand)
+	Must(controller.Unmarshal(updateQuerySetCommand))
 	Id, _ := controller.GetInt(":querySetId")
 	Id, _ := controller.GetInt(":querySetId")
 	updateQuerySetCommand.QuerySetId = Id
 	updateQuerySetCommand.QuerySetId = Id
 	data, err := querySetService.UpdateQuerySet(ParseContext(controller.BaseController), updateQuerySetCommand)
 	data, err := querySetService.UpdateQuerySet(ParseContext(controller.BaseController), updateQuerySetCommand)