diff --git a/base/res_condition.go b/base/res_condition.go
index 191714f..4b351d6 100644
--- a/base/res_condition.go
+++ b/base/res_condition.go
@@ -1,7 +1,5 @@
 package base
 
-import "git.fsdpf.net/go/contracts"
-
 type ResCondition struct {
 	Id                 int    `db:"id"`
 	Pid                int    `db:"pid"`
@@ -38,5 +36,3 @@ type ResWhereExpr struct {
 }
 
 type GetResConditions func(categoryUuid string) []ResCondition
-
-type GetOrmConditionByRes func(categoryUuid string, describe string) contracts.Condition
diff --git a/base/resource.go b/base/resource.go
index ee4e8ea..f942cad 100644
--- a/base/resource.go
+++ b/base/resource.go
@@ -11,7 +11,6 @@ import (
 	"github.com/samber/lo"
 
 	"git.fsdpf.net/go/contracts"
-	"git.fsdpf.net/go/contracts/helper"
 	"git.fsdpf.net/go/contracts/support"
 	"git.fsdpf.net/go/db"
 )
@@ -218,14 +217,14 @@ func (this Resource) WithRolesCondition(b *db.Builder, t string, u contracts.Use
 	isFullRight := false
 	isFullNot := false
 
-	NewOrm := do.MustInvoke[helper.NewOrm](this.container)
-	NewOrmModel := do.MustInvoke[helper.NewOrmModel](this.container)
-	NewOrmJoin := do.MustInvoke[helper.NewOrmJoin](this.container)
+	NewOrm := do.MustInvoke[contracts.NewOrm](this.container)
+	NewOrmModel := do.MustInvoke[contracts.NewOrmModel](this.container)
+	NewOrmJoin := do.MustInvoke[contracts.NewOrmJoin](this.container)
 
 	GetResRelationResource := do.MustInvoke[GetResRelationResource](this.container)
 	GetResRelations := do.MustInvoke[GetResRelations](this.container)
 	GetResource := do.MustInvoke[contracts.GetResource](this.container)
-	GetOrmConditionByRes := do.MustInvoke[GetOrmConditionByRes](this.container)
+	GetOrmConditionByRes := do.MustInvoke[contracts.GetOrmConditionByRes](this.container)
 
 	items := do.MustInvoke[GetResRoles](this.container)(this.GetUuid(), u.Roles()...)
 
diff --git a/helper/orm.go b/helper/orm.go
deleted file mode 100644
index 17a0524..0000000
--- a/helper/orm.go
+++ /dev/null
@@ -1,32 +0,0 @@
-package helper
-
-import (
-	"git.fsdpf.net/go/contracts"
-	"git.fsdpf.net/go/db"
-)
-
-// @title 创建关联模型
-// @param t              关联类型
-// @param m              关联模型
-// @param rResource      链接父模型
-// @param rField         连接父模型字段, 如 xx_id
-// @param rForeignKey    关联外键, 如 id
-type NewOrmRelation func(t contracts.RelationType, m contracts.Model, rResource, rField, rForeignKey string) contracts.Model
-
-type NewOrmJoin func(t contracts.RelationType, res contracts.Resource, alias, rResource, rField, rForeignKey string) contracts.Join
-
-type NewOrmCondition func(typ contracts.ConditionType, describe string) contracts.Condition
-
-type NewOrmConditionExpr func(rResource, rField, token string, operator contracts.ConditionOperator, tType contracts.ConditionTokenType, ignoreEmptyParma bool) contracts.ConditionExpr
-
-type NewOrmConditionFuncExpr func(rResource, rField, token string, operator contracts.ConditionOperator, tType contracts.ConditionTokenType, ignoreEmptyParma bool, fn, fnParam string) contracts.ConditionExpr
-
-type NewOrmQueryWithRecursive func(pField, cField string, root any, isWithoutCondition bool, depth int) contracts.QueryWithRecursive
-
-type NewOrmOrderBy func(sql string, direction contracts.OrderByDirection) contracts.OrderBy
-
-type NewOrmGroupBy func(sql string) contracts.GroupBy
-
-type NewOrmModel func(res contracts.Resource, code, name string) contracts.Model
-
-type NewOrm func(res contracts.Resource, tx *db.Transaction) contracts.Orm
diff --git a/orm.go b/orm.go
index f10a682..6ccc217 100644
--- a/orm.go
+++ b/orm.go
@@ -184,3 +184,31 @@ type QueryWithRecursive interface {
 	ToQueryBuilder(*db.Builder, Model) (*db.Builder, any)
 	ToTreeData(any) any
 }
+
+// @title 创建关联模型
+// @param t              关联类型
+// @param m              关联模型
+// @param rResource      链接父模型
+// @param rField         连接父模型字段, 如 xx_id
+// @param rForeignKey    关联外键, 如 id
+type NewOrmRelation func(t RelationType, m Model, rResource, rField, rForeignKey string) Model
+
+type NewOrmJoin func(t RelationType, res Resource, alias, rResource, rField, rForeignKey string) Join
+
+type NewOrmCondition func(typ ConditionType, describe string) Condition
+
+type NewOrmConditionExpr func(rResource, rField, token string, operator ConditionOperator, tType ConditionTokenType, ignoreEmptyParma bool) ConditionExpr
+
+type NewOrmConditionFuncExpr func(rResource, rField, token string, operator ConditionOperator, tType ConditionTokenType, ignoreEmptyParma bool, fn, fnParam string) ConditionExpr
+
+type NewOrmQueryWithRecursive func(pField, cField string, root any, isWithoutCondition bool, depth int) QueryWithRecursive
+
+type NewOrmOrderBy func(sql string, direction OrderByDirection) OrderBy
+
+type NewOrmGroupBy func(sql string) GroupBy
+
+type NewOrmModel func(res Resource, code, name string) Model
+
+type NewOrm func(res Resource, tx *db.Transaction) Orm
+
+type GetOrmConditionByRes func(categoryUuid string, describe string) Condition