diff --git a/backend/app/model/medias.go b/backend/app/model/medias.go
index 5bb4f21..e6c2531 100644
--- a/backend/app/model/medias.go
+++ b/backend/app/model/medias.go
@@ -67,14 +67,10 @@ func (m *Medias) GetByIds(ctx context.Context, ids []int64) ([]*Medias, error) {
 		return nil, nil
 	}
 
-	condIds := lo.Map(ids, func(id int64, _ int) Expression {
-		return Int64(id)
-	})
-
 	tbl := tblMedias
 	stmt := tbl.
 		SELECT(tbl.AllColumns).
-		WHERE(tbl.ID.IN(condIds...))
+		WHERE(tbl.ID.IN(IntExprSlice(ids)...))
 	m.log().Infof("sql: %s", stmt.DebugSql())
 
 	var medias []Medias
diff --git a/backend/app/model/orders.go b/backend/app/model/orders.go
index 9467e2e..c8243a1 100644
--- a/backend/app/model/orders.go
+++ b/backend/app/model/orders.go
@@ -84,9 +84,7 @@ func (m *Orders) List(
 		return nil, err
 	}
 
-	postsMap, err := PostsModel().GetPostsMapByIDs(ctx, lo.Map(orders, func(order Orders, _ int) int64 {
-		return order.PostID
-	}))
+	postsMap, err := PostsModel().GetPostsMapByIDs(ctx, lo.Map(orders, func(order Orders, _ int) int64 { return order.PostID }))
 	if err != nil {
 		m.log().Errorf("error getting posts map: %v", err)
 		return nil, err
diff --git a/backend/app/model/posts.go b/backend/app/model/posts.go
index da29809..1ac935b 100644
--- a/backend/app/model/posts.go
+++ b/backend/app/model/posts.go
@@ -125,7 +125,7 @@ func (m *Posts) BoughtStatistics(ctx context.Context, postIds []int64) (map[int6
 			tbl.PostID.AS("post_id"),
 		).
 		WHERE(
-			tbl.PostID.IN(lo.Map(postIds, func(id int64, _ int) Expression { return Int64(id) })...),
+			tbl.PostID.IN(IntExprSlice(postIds)...),
 		).
 		GROUP_BY(
 			tbl.PostID,
@@ -218,7 +218,7 @@ func (m *Posts) GetPostsMapByIDs(ctx context.Context, ids []int64) (map[int64]Po
 	stmt := tbl.
 		SELECT(tbl.AllColumns).
 		WHERE(
-			tbl.ID.IN(lo.Map(ids, func(id int64, _ int) Expression { return Int64(id) })...),
+			tbl.ID.IN(IntExprSlice(ids)...),
 		)
 
 	m.log().Infof("sql: %s", stmt.DebugSql())
@@ -245,7 +245,7 @@ func (m *Posts) GetMediaByIds(ctx context.Context, ids []int64) ([]Medias, error
 	stmt := tbl.
 		SELECT(tbl.AllColumns).
 		WHERE(
-			tbl.ID.IN(lo.Map(ids, func(id int64, _ int) Expression { return Int64(id) })...),
+			tbl.ID.IN(IntExprSlice(ids)...),
 		)
 
 	m.log().Infof("sql: %s", stmt.DebugSql())
diff --git a/backend/app/model/provider.gen.go b/backend/app/model/provider.gen.go
index 6027682..a6f7f8e 100644
--- a/backend/app/model/provider.gen.go
+++ b/backend/app/model/provider.gen.go
@@ -10,10 +10,12 @@ import (
 	"quyun/database/table"
 
 	. "github.com/go-jet/jet/v2/postgres"
+	"github.com/samber/lo"
 	"go.ipao.vip/atom"
 	"go.ipao.vip/atom/container"
 	"go.ipao.vip/atom/contracts"
 	"go.ipao.vip/atom/opt"
+	"golang.org/x/exp/constraints"
 )
 
 type Cond func(BoolExpression) BoolExpression
@@ -36,6 +38,36 @@ func CondJoin(cond Cond, conds ...Cond) []Cond {
 	return append([]Cond{cond}, conds...)
 }
 
+// converts
+func IntExprSlice[T constraints.Integer](slice []T) []Expression {
+	if len(slice) == 0 {
+		return nil
+	}
+
+	return lo.Map(slice, func(item T, _ int) Expression {
+		switch any(item).(type) {
+		case int8:
+			return Int8(int8(item))
+		case int16:
+			return Int16(int16(item))
+		case int32:
+			return Int32(int32(item))
+		case int64:
+			return Int64(int64(item))
+		case uint8:
+			return Uint8(uint8(item))
+		case uint16:
+			return Uint16(uint16(item))
+		case uint32:
+			return Uint32(uint32(item))
+		case uint64:
+			return Uint64(uint64(item))
+		default:
+			return nil
+		}
+	})
+}
+
 // tables
 var tblMedias = table.Medias
 var tblOrders = table.Orders
diff --git a/backend/app/model/users.go b/backend/app/model/users.go
index 0daece3..abb2ec4 100644
--- a/backend/app/model/users.go
+++ b/backend/app/model/users.go
@@ -210,7 +210,7 @@ func (m *Users) GetUsersMapByIDs(ctx context.Context, ids []int64) (map[int64]Us
 	stmt := tbl.
 		SELECT(tbl.AllColumns).
 		WHERE(
-			tbl.ID.IN(lo.Map(ids, func(id int64, _ int) Expression { return Int64(id) })...),
+			tbl.ID.IN(IntExprSlice(ids)...),
 		)
 
 	m.log().Infof("sql: %s", stmt.DebugSql())
@@ -231,7 +231,7 @@ func (m *Users) BatchCheckHasBought(ctx context.Context, postIDs []int64) (map[i
 	tbl := tblUserPosts
 	stmt := tbl.SELECT(tbl.PostID.AS("post_id")).WHERE(
 		tbl.UserID.EQ(Int64(m.ID)).AND(
-			tbl.PostID.IN(lo.Map(postIDs, func(id int64, _ int) Expression { return Int64(id) })...),
+			tbl.PostID.IN(IntExprSlice(postIDs)...),
 		),
 	)