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fixed bug when there was no dbfile, and dbmanage raise an exception
fixed bug when there was no dbfile, and dbmanage raise an exception

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db_manage.py
98 lines | 3.0 KiB | text/x-python | PythonLexer
from os.path import dirname as dn, join as jn
from pylons_app.lib.auth import get_crypt_password
from pylons_app.model import init_model
from pylons_app.model.db import User, Permission
from pylons_app.model.meta import Session, Base
from sqlalchemy.engine import create_engine
import logging
import os
import sys
ROOT = dn(dn(dn(os.path.realpath(__file__))))
sys.path.append(ROOT)
log = logging.getLogger('db manage')
log.setLevel(logging.DEBUG)
console_handler = logging.StreamHandler()
console_handler.setFormatter(logging.Formatter("%(asctime)s.%(msecs)03d"
" %(levelname)-5.5s [%(name)s] %(message)s"))
log.addHandler(console_handler)
class DbManage(object):
def __init__(self, log_sql):
self.dbname = 'hg_app.db'
dburi = 'sqlite:////%s' % jn(ROOT, self.dbname)
engine = create_engine(dburi, echo=log_sql)
init_model(engine)
self.sa = Session()
self.db_exists = False
def check_for_db(self, override):
log.info('checking for exisiting db')
if os.path.isfile(jn(ROOT, self.dbname)):
self.db_exists = True
log.info('database exisist')
if not override:
raise Exception('database already exists')
def create_tables(self, override=False):
"""
Create a auth database
"""
self.check_for_db(override)
if override:
log.info("database exisist and it's going to be destroyed")
if self.db_exists:
os.remove(jn(ROOT, self.dbname))
Base.metadata.create_all(checkfirst=override)
log.info('Created tables for %s', self.dbname)
def admin_prompt(self):
import getpass
username = raw_input('Specify admin username:')
password = getpass.getpass('Specify admin password:')
self.create_user(username, password, True)
def create_user(self, username, password, admin=False):
log.info('creating administrator user %s', username)
new_user = User()
new_user.username = username
new_user.password = get_crypt_password(password)
new_user.admin = admin
new_user.active = True
try:
self.sa.add(new_user)
self.sa.commit()
except:
self.sa.rollback()
raise
def create_permissions(self):
#module.(access|create|change|delete)_[name]
perms = [('admin.access_home', 'Access to admin user view'),
]
for p in perms:
new_perm = Permission()
new_perm.permission_name = p[0]
new_perm.permission_longname = p[1]
try:
self.sa.add(new_perm)
self.sa.commit()
except:
self.sa.rollback()
raise
if __name__ == '__main__':
dbmanage = DbManage(log_sql=True)
dbmanage.create_tables(override=True)
dbmanage.admin_prompt()
dbmanage.create_permissions()