TASK:design single中添加单件衣服画布保存

src/main/java/com/ai/da/service/DesignItemDetailService.java

@@ -1,6 +1,7 @@
 package com.ai.da.service;
 
 import com.ai.da.mapper.primary.entity.DesignItemDetail;
+import com.ai.da.mapper.primary.entity.DesignItemDetailCanvas;
 import com.baomidou.mybatisplus.extension.service.IService;
 
 import java.util.List;
@@ -20,4 +21,8 @@ public interface DesignItemDetailService extends IService<DesignItemDetail> {
     List<DesignItemDetail> selectByDesignItemId(Long designItemId);
 
     void setDesignItemDetailPriority(List<DesignItemDetail> designItemDetailList);
+
+    void saveDesignItemDetailCanvas(Long designItemDetailId, Long exportFileId);
+
+    DesignItemDetailCanvas getDIDCByDesignItemDetailId(Long designItemDetailId);
 }