feat: support admin order query

backend_v1/app/services/posts.go

@@ -5,6 +5,7 @@ import (
 	"time"
 
 	"quyun/v2/app/requests"
+	"quyun/v2/database"
 	"quyun/v2/database/models"
 
 	"github.com/pkg/errors"
@@ -167,3 +168,9 @@ func (m *posts) Count(ctx context.Context, conds ...gen.Condition) (int64, error
 	}
 	return query.Count()
 }
+
+// FilterIdsByKeyword filter posts ids by title keywords
+func (m *posts) FilterIdsByKeyword(ctx context.Context, keyword string) ([]int64, error) {
+	tbl, query := models.PostQuery.QueryContext(ctx)
+	return query.Select(tbl.ID).Where(tbl.Title.Like(database.WrapLike(keyword))).PluckIDs()
+}