文件关联书籍功能完成

bookshelfplus/src/main/java/plus/bookshelf/Service/Impl/FileServiceImpl.java

@@ -164,6 +164,22 @@ public class FileServiceImpl implements FileService {
         return fileDO;
     }
 
+    /**
+     * 更新文件
+     *
+     * @return
+     */
+    @Override
+    public Integer updateSelective(FileModel fileModel) {
+        FileDO fileDO = convertFromFileModel(fileModel);
+
+        // 如果文件 id 不对，那么不能更新
+        if (fileDO.getId() == 0 || fileDO.getId() == null) {
+            return 0;
+        }
+        return fileDOMapper.updateByPrimaryKeySelective(fileDO);
+    }
+
     /**
      * 取消文件和书籍的关联
      *

bookshelfplus/src/main/java/plus/bookshelf/Service/Service/FileService.java

@@ -60,6 +60,14 @@ public interface FileService {
      */
     Boolean addFile(FileModel fileModel) throws InvocationTargetException, IllegalAccessException;
 
+    /**
+     * 更新文件对象
+     *
+     * @param fileModel
+     * @return
+     */
+    Integer updateSelective(FileModel fileModel);
+
     /**
      * 取消文件和书籍的关联
      *