feat: update admin

backend/app/models/medias.go

@@ -257,3 +257,21 @@ func (m *mediasModel) GetRelations(ctx context.Context, hash string) ([]*model.M
 		return &media
 	}), nil
 }
+
+// Count
+func (m *mediasModel) Count(ctx context.Context) (int64, error) {
+	tbl := table.Medias
+	stmt := tbl.SELECT(COUNT(tbl.ID).AS("count"))
+	m.log.Infof("sql: %s", stmt.DebugSql())
+
+	var count struct {
+		Count int64
+	}
+
+	if err := stmt.QueryContext(ctx, db, &count); err != nil {
+		m.log.Errorf("error counting media items: %v", err)
+		return 0, err
+	}
+
+	return count.Count, nil
+}

backend/app/models/orders.go

@@ -203,3 +203,43 @@ func (m *ordersModel) SetStatus(ctx context.Context, orderNo string, status fiel
 	}
 	return nil
 }
+
+// Count
+func (m *ordersModel) Count(ctx context.Context, cond BoolExpression) (int64, error) {
+	tbl := table.Orders
+	stmt := SELECT(COUNT(tbl.ID).AS("cnt")).FROM(tbl).WHERE(cond)
+	m.log.Infof("sql: %s", stmt.DebugSql())
+
+	var cnt struct {
+		Cnt int64
+	}
+
+	err := stmt.QueryContext(ctx, db, &cnt)
+	if err != nil {
+		m.log.Errorf("error counting orders: %v", err)
+		return 0, err
+	}
+
+	return cnt.Cnt, nil
+}
+
+// SumAmount
+func (m *ordersModel) SumAmount(ctx context.Context) (int64, error) {
+	tbl := table.Orders
+	stmt := SELECT(SUM(tbl.Price).AS("cnt")).FROM(tbl).WHERE(
+		tbl.Status.EQ(Int(int64(fields.OrderStatusPaid))),
+	)
+	m.log.Infof("sql: %s", stmt.DebugSql())
+
+	var cnt struct {
+		Cnt int64
+	}
+
+	err := stmt.QueryContext(ctx, db, &cnt)
+	if err != nil {
+		m.log.Errorf("error summing order amount: %v", err)
+		return 0, err
+	}
+
+	return cnt.Cnt, nil
+}

backend/app/models/posts.go

@@ -395,3 +395,21 @@ func (m *postsModel) GetMediaByIds(ctx context.Context, ids []int64) ([]model.Me
 
 	return medias, nil
 }
+
+// Count
+func (m *postsModel) Count(ctx context.Context, cond BoolExpression) (int64, error) {
+	tbl := table.Posts
+	stmt := tbl.
+		SELECT(COUNT(tbl.ID).AS("count")).
+		WHERE(cond)
+
+	var count struct {
+		Count int64
+	}
+	if err := stmt.QueryContext(ctx, db, &count); err != nil {
+		m.log.Errorf("error counting posts: %v", err)
+		return 0, err
+	}
+
+	return count.Count, nil
+}

backend/app/models/users.go

@@ -310,3 +310,24 @@ func (m *usersModel) HasBought(ctx context.Context, userID, postID int64) (bool,
 
 	return userPost.ID > 0, nil
 }
+
+// Count
+func (m *usersModel) Count(ctx context.Context, cond BoolExpression) (int64, error) {
+	tbl := table.Users
+	stmt := tbl.
+		SELECT(COUNT(tbl.ID).AS("cnt")).
+		WHERE(cond)
+
+	m.log.Infof("sql: %s", stmt.DebugSql())
+
+	var cnt struct {
+		Cnt int64
+	}
+
+	if err := stmt.QueryContext(ctx, db, &cnt); err != nil {
+		m.log.Errorf("error counting users: %v", err)
+		return 0, err
+	}
+
+	return cnt.Cnt, nil
+}