diff --git a/wren-ui/src/apollo/server/resolvers/projectResolver.ts b/wren-ui/src/apollo/server/resolvers/projectResolver.ts
index 5f21c05dc..b81eca16e 100644
--- a/wren-ui/src/apollo/server/resolvers/projectResolver.ts
+++ b/wren-ui/src/apollo/server/resolvers/projectResolver.ts
@@ -6,7 +6,7 @@ import {
   SampleDatasetData,
 } from '../types';
 import { getLogger } from '@server/utils';
-import { Model, ModelColumn, Project, Relation } from '../repositories';
+import { Model, ModelColumn, Project } from '../repositories';
 import {
   SampleDatasetName,
   SampleDatasetRelationship,
diff --git a/wren-ui/src/apollo/server/services/modelService.ts b/wren-ui/src/apollo/server/services/modelService.ts
index 98b728848..7a6b4d595 100644
--- a/wren-ui/src/apollo/server/services/modelService.ts
+++ b/wren-ui/src/apollo/server/services/modelService.ts
@@ -1,4 +1,3 @@
-import { DataSourceStrategyFactory } from '../factories/onboardingFactory';
 import {
   IModelColumnRepository,
   IModelRepository,
@@ -51,18 +50,6 @@ export class ModelService implements IModelService {
     return `${sourceTableName}_${existedReferenceNames.length + 1}`;
   }
 
-  public async saveModels(strategy: DataSourceStrategyFactory, tables: any) {
-    const project = await this.projectService.getCurrentProject();
-    const projectId = project.id;
-
-    // delete existing models and columns
-    await this.resetCurrentProjectModel(projectId);
-
-    // create model and columns
-
-    const { models, columns } = await strategy.saveModels(tables);
-  }
-
   public async saveRelations(relations: RelationData[]) {
     const project = await this.projectService.getCurrentProject();