diff --git a/fs_class.py b/fs_class.py
index b30a09d..8ff1a89 100755
--- a/fs_class.py
+++ b/fs_class.py
@@ -67,13 +67,23 @@ class fs:
             self.id = id
 
     def write_to_db(self):
-        pass
+        '''stores self.hash_files in database, along with a backup id and hash_func parameters'''
+        for hash,files in self.hash_files.item()
+            for file in files:
+                self.cur.execue('INSERT INTO paths VALUES (?,?)',[hash,file])
+        self.con.commit()
 
     def morph(self,other):
+        '''renames/copies all files in self.top to match other'''
         pass
 
     def backup(self,other):
+        '''fills in self.hash_file {hash:[filepaths]}'''
+        paths = hashify(self.top,self.hashfunc)
+        for filepath,hash in paths:
+            self.hash_file.setdefault(hash,[]).append(filepath)
         
+
 if __name__ == "__main__":
     import os
     test = fs(os.getcwd())