From e97d0a3ca1e3b4c5d8c386fd7939e9b23d7bbbd4 Mon Sep 17 00:00:00 2001
From: Oleg Broytman <phd@phdru.name>
Date: Fri, 24 Jul 2015 00:50:07 +0300
Subject: [PATCH] Update data

Reload dump without trashing existing data in the table.
---
 reload_db.py | 18 ++++++++++++------
 xsetbg_db.py | 23 ++---------------------
 2 files changed, 14 insertions(+), 27 deletions(-)

diff --git a/reload_db.py b/reload_db.py
index 41a3c94..93eeac9 100755
--- a/reload_db.py
+++ b/reload_db.py
@@ -10,7 +10,7 @@ __copyright__ = "Copyright (C) 2007-2015 PhiloSoft Design"
 __license__ = "GNU GPL"
 
 import sys
-from sqlobject import sqlhub
+from sqlobject import sqlhub, SQLObjectNotFound
 from sqlobject.sqlbuilder import Insert
 from xsetbg_conf import xsetbg_conf
 from xsetbg_db import recreate_db
@@ -41,11 +41,17 @@ for line in dump_file:
     timestamp = convert_str(timestamp)
     if fs_encoding != 'utf-8':
         filename = filename.decode(fs_encoding).encode('utf-8')
-    values = {'last_shown': timestamp, 'full_name': filename}
-    if id:
-        values['id'] = id
-    query = txn.sqlrepr(Insert(xsetbg_db.sqlmeta.table, values=values))
-    txn.query(query)
+    try:
+        row = xsetbg_db.byFull_name(filename)
+    except SQLObjectNotFound:
+        values = {'last_shown': timestamp, 'full_name': filename}
+        if id:
+            values['id'] = id
+        query = txn.sqlrepr(Insert(xsetbg_db.sqlmeta.table, values=values))
+        txn.query(query)
+    else:
+        assert row.id == id
+        assert row.last_shown == timestamp
 
 txn.commit()
 sqlhub.processConnection = connection
diff --git a/xsetbg_db.py b/xsetbg_db.py
index 54d174b..e5fe5d0 100755
--- a/xsetbg_db.py
+++ b/xsetbg_db.py
@@ -11,18 +11,10 @@ __all__ = ['xsetbg_db_path', 'xsetbg_db']
 
 import os
 from sqlobject import SQLObject, connectionForURI, sqlhub, \
-    StringCol, UnicodeCol, IntCol, BoolCol, DatabaseIndex, dberrors, \
-    SQLObjectNotFound
+    UnicodeCol, IntCol, BoolCol, DatabaseIndex, dberrors
 from xsetbg_conf import xsetbg_conf
 
 
-class SqliteSequence(SQLObject):
-    class sqlmeta:
-        idName = 'rowid'
-    name = StringCol(unique=True)
-    seq = IntCol()
-
-
 class XSetBg(SQLObject):
     full_name = UnicodeCol(alternateID=True)
     last_shown = IntCol(default=None)  # timestamp
@@ -31,21 +23,10 @@ class XSetBg(SQLObject):
     last_shown_idx = DatabaseIndex('last_shown')
     flag_idx = DatabaseIndex('flag')
 
-    def clearTable(self):
-        super.clearTable(XSetBg, self)
-        try:
-            seq = SqliteSequence.byName(XSetBg.sqlmeta.table)
-        except SQLObjectNotFound:
-            SqliteSequence(name=XSetBg.sqlmeta.table, seq=0)
-        else:
-            seq.seq = 0  # Reset autoincrement counter
-
 
 def recreate_db():
     global xsetbg_db
-    if xsetbg_db:
-        xsetbg_db.clearTable()
-    else:
+    if not xsetbg_db:
         xsetbg_db = XSetBg
         xsetbg_db.createTable()
     return xsetbg_db
-- 
2.39.2