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# -*- coding: utf-8 -*-
from storageBase import storageBase
from itemList import itemList
from item import item
from pysqlite2 import dbapi2 as sqliteBackend
class sqlite(storageBase):
dbVersion = '0.2'
def __init__(self):
self.con = sqliteBackend.connect(self.getConfigDir() + '/data.sqlite')
self.cur = self.con.cursor()
# wenn todo tabelle noch nicht exsistiert, dann sollten wir sie anlegen
cur = self.cur.execute("select name from sqlite_master where type='table';")
tables = cur.fetchall()
if ('todo',) not in tables or ('control',) not in tables:
self.init_db()
# überprüfung ob die db-version identisch ist
version = self.cur.execute("select value from control where setting='db-version'").fetchone()
if (sqlite.dbVersion,) != version:
# TODO: update not init
self.update_db(version)
def init_db(self):
print '(re)create todo table...'
self.cur.execute('drop table if exists todo')
self.cur.execute('''create table todo (
id INTEGER PRIMARY KEY AUTOINCREMENT,
title TEXT(255),
createdAt INTEGER,
priority INTEGER,
desc BLOB
)''')
self.cur.execute('drop table if exists control')
self.cur.execute('''create table control (
id INTEGER PRIMARY KEY AUTOINCREMENT,
setting TEXT,
value TEXT
)''')
self.cur.execute("insert into control (setting, value) VALUES ('db-version', ?)", (sqlite.dbVersion,))
self.con.commit()
def update_db(self, updateFrom):
print 'updating todo table...'
if updateFrom == '0.1':
self.cur.execute('''alter table todo
add desc BLOB''')
self.con.commit()
updateFrom = '0.2'
self.cur.execute("update control set value = ? where setting = 'db-version'", (sqlite.dbVersion,))
self.con.commit()
def __del__(self):
self.con.close()
def load(self):
items = itemList(self)
todos = self.cur.execute('select * from todo').fetchall()
for todo in todos:
items += item(row=todo)
return items
def notifyChange(self, sender):
if sender.getId() >= 0:
self.cur.execute('update todo set title=?, createdAt=?, priority=?, desc=? where id=?',
(sender.getTitle(), sender.getCreatedAt(), sender.getPriority(), sender.getId(), sender.getDescription()))
self.con.commit()
else:
self.cur.execute('insert into todo (title, createdAt, priority, desc) VALUES (?, ?, ?, ?)',
(sender.getTitle(), sender.getCreatedAt(), sender.getPriority(), sender.getDescription()))
self.con.commit()
sender.setId(self.cur.execute('select last_insert_rowid()').fetchone()[0])
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