diff --git a/ext_open/config.ini b/ext_open/config.ini
index f9a5700..f3a8801 100644
--- a/ext_open/config.ini
+++ b/ext_open/config.ini
@@ -1,6 +1,9 @@
 [global]
-    no_admin = yes
+    no_admin = no
+    
 [exe]
     ; comma separated paths
     paths= %userprofile%,%programfiles%,%programfiles(x86)%,
+[py]
+    paths = %userprofile%\Documents\local_repo\windows\ext_open
     
\ No newline at end of file
diff --git a/ext_open/config.py b/ext_open/config.py
index 5972414..d13bdb2 100644
--- a/ext_open/config.py
+++ b/ext_open/config.py
@@ -12,5 +12,4 @@ class MyParser(configparser.ConfigParser):
             return data
         return list(filter(bool,re.split(' *, *',data)))
 config = MyParser()
-config.read(CONFIG_PATH)
-print(config.getlist('exe','paths'))
\ No newline at end of file
+config.read(CONFIG_PATH)
\ No newline at end of file
diff --git a/ext_open/searcher.py b/ext_open/searcher.py
index 3d32516..7b3d53d 100644
--- a/ext_open/searcher.py
+++ b/ext_open/searcher.py
@@ -1,14 +1,16 @@
 import sqlite3
 import os
 import re
-import update
+import update as _update
+from config import config
+import time
 # https://stackoverflow.com/a/5365533
 osp = os.path
 DB_PATH = osp.join(osp.dirname(__file__),'ext.db')
 ext_database = sqlite3.connect(DB_PATH)
 def init_db():
     cur = ext_database.cursor()
-    cur.execute('CREATE TABLE "updates" ( `ext` TEXT, `update_time` INTEGER, `file_count` INTEGER, PRIMARY KEY(`ext`) )')
+    cur.execute('CREATE TABLE IF NOT EXISTS updates ( `ext` TET, `update_time` INTEGER, `file_count` INTEGER);')
 def regexp(expr, item):
     return re.search(expr,item) is not None
 ext_database.create_function("REGEXP", 2, regexp)
@@ -19,17 +21,41 @@ class Searcher:
         self.index = '{}_index'.format(ext)
         self.__init_table__()
     def __init_table__(self):
-        self.cur.execute('CREATE TABLE IF NOT EXISTS ? (`name` TEXT,`fullpath` TEXT,UNIQUE(name,fullpath));',[self.ext])
-        self.cur.execute('CREATE INDEX IF NOT EXISTS ? ON ? ( `name`, `fullpath` )',[self.index,self.ext])
-    def _update_(self,update_mtimes):
-        # update logic
-        self.cur.executemany('INSERT OR IGNORE INTO ? VALUES (?,?)',params)
-        self.cur.execute('INSERT INTO updates VALUES (?, ?, ?)',[self.ext,time,count])
-    def _commit_(self):
+        self.cur.execute('CREATE TABLE IF NOT EXISTS {} (`name` TEXT,`fullpath` TEXT, `update_time` INTEGER,UNIQUE(name,fullpath));'.format(self.ext))
+        self.cur.execute('CREATE INDEX IF NOT EXISTS {} ON {} ( `name`, `fullpath` )'.format(self.index,self.ext))
+        self.cur.execute(
+            'INSERT INTO updates (ext,update_time,file_count) SELECT :ext, 0, 0 WHERE NOT EXISTS(SELECT 1 FROM updates WHERE ext = :ext AND update_time = 0 AND file_count = 0);',
+            {'ext':self.ext}
+            )
+        self.commit()
+    def update(self,update_mtimes):
+        self.cur.execute('SELECT update_time FROM updates WHERE ext=? ORDER BY update_time DESC LIMIT 1;',[self.ext])
+        last_update = self.cur.fetchone()[0]
+        # input(str(last_update))
+        _time = int(time.time())
+        files = _update.update(
+            self.ext,
+            config.getlist(self.ext,'paths'),
+            last_update,
+            update_mtimes
+            )
+        self.cur.executemany('INSERT OR IGNORE INTO {} VALUES (?,?,?)'.format(self.ext),(row + [_time] for row in files))
+        self.cur.execute('INSERT INTO updates VALUES (?, ?, ?)',[self.ext,_time,len(files)])
+        self.commit()
+    def commit(self):
         ext_database.commit()
+    def close(self):
+        ext_database.close()
     def search(query,regex=False):
         if regex:
-            self.cur.execute('SELECT * FROM ? WHERE name REGEXP ?',[self.ext,query])
+            self.cur.execute('SELECT * FROM ? WHERE name REGEXP ?;',[self.ext,query])
         else:
-            self.cur.execute('SELECT * FROM ? WHERE name LIKE ?',[self.ext,query])
-        return self.cur.fetchall()
\ No newline at end of file
+            self.cur.execute('SELECT * FROM ? WHERE name LIKE ?;',[self.ext,query])
+        return self.cur.fetchall()
+    def clean(self,backhistory):
+        pass
+        # TODO
+if __name__ == "__main__":
+    init_db()
+    s = Searcher('py')
+    s.update(True)
\ No newline at end of file
diff --git a/ext_open/update.py b/ext_open/update.py
index 51d57e0..d41ca1d 100644
--- a/ext_open/update.py
+++ b/ext_open/update.py
@@ -4,6 +4,7 @@ import os.path as osp
 import datetime
 from util import no_parents,get_drives
 from config import config
+import subprocess
 
 FORCE_ADMIN = not config.getboolean('global','no_admin',fallback=False)
 
@@ -20,7 +21,7 @@ def update_mtimes(starts):
     if not is_admin() and FORCE_ADMIN:
         raise Exception("Process must be admin")
     for start in starts:
-        subprocess.check_call([EXE_PATH,'/stext','null','/BaseFolder',start])
+        subprocess.check_call([EXE_PATH,'/stext','nul','/BaseFolder',start])
 
 def build(after,starts):
     if isinstance(after,datetime.datetime):
@@ -46,13 +47,11 @@ def build_ext(ext,paths):
     for path in paths:
         if path.endswith(ext):
             name = osp.basename(path)
-            try:
-                ret[name].append(path)
-            except KeyError:
-                ret.append([name,path])
+            ret.append([name,path])   
     return ret
 
-def update(after,*starts,update_mtimes = False):
-    if update_mtimes:
+def update(ext,starts,after,do_update_mtimes = False):
+    if do_update_mtimes:
         update_mtimes(starts)
-    return build(after,starts)
\ No newline at end of file
+    files = build(after,starts)
+    return build_ext(ext,files)
\ No newline at end of file