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annotate pylons_app/lib/db_manage.py @ 243:9d64df490248

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fixed bug when there was no dbfile, and dbmanage raise an exception
author Marcin Kuzminski <marcin@python-works.com>
date Tue, 01 Jun 2010 22:06:48 +0200
parents 7c4fa2a66195
children bad9ccac26b7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 from os.path import dirname as dn, join as jn
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2 from pylons_app.lib.auth import get_crypt_password
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3 from pylons_app.model import init_model
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4 from pylons_app.model.db import User, Permission
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5 from pylons_app.model.meta import Session, Base
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6 from sqlalchemy.engine import create_engine
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7 import logging
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8 import os
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9 import sys
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10 ROOT = dn(dn(dn(os.path.realpath(__file__))))
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11 sys.path.append(ROOT)
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15 log = logging.getLogger('db manage')
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16 log.setLevel(logging.DEBUG)
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17 console_handler = logging.StreamHandler()
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18 console_handler.setFormatter(logging.Formatter("%(asctime)s.%(msecs)03d"
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19 " %(levelname)-5.5s [%(name)s] %(message)s"))
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20 log.addHandler(console_handler)
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22 class DbManage(object):
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23 def __init__(self, log_sql):
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24 self.dbname = 'hg_app.db'
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25 dburi = 'sqlite:////%s' % jn(ROOT, self.dbname)
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26 engine = create_engine(dburi, echo=log_sql)
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27 init_model(engine)
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28 self.sa = Session()
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29 self.db_exists = False
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31 def check_for_db(self, override):
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32 log.info('checking for exisiting db')
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33 if os.path.isfile(jn(ROOT, self.dbname)):
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34 self.db_exists = True
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35 log.info('database exisist')
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36 if not override:
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37 raise Exception('database already exists')
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38
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39 def create_tables(self, override=False):
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40 """
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41 Create a auth database
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42 """
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43 self.check_for_db(override)
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44 if override:
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45 log.info("database exisist and it's going to be destroyed")
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46 if self.db_exists:
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47 os.remove(jn(ROOT, self.dbname))
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48 Base.metadata.create_all(checkfirst=override)
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49 log.info('Created tables for %s', self.dbname)
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51 def admin_prompt(self):
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52 import getpass
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53 username = raw_input('Specify admin username:')
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54 password = getpass.getpass('Specify admin password:')
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55 self.create_user(username, password, True)
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57 def create_user(self, username, password, admin=False):
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58 log.info('creating administrator user %s', username)
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60 new_user = User()
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61 new_user.username = username
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62 new_user.password = get_crypt_password(password)
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63 new_user.admin = admin
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64 new_user.active = True
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66 try:
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67 self.sa.add(new_user)
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68 self.sa.commit()
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69 except:
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70 self.sa.rollback()
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71 raise
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72
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73 def create_permissions(self):
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74 #module.(access|create|change|delete)_[name]
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75 perms = [('admin.access_home', 'Access to admin user view'),
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77 ]
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79 for p in perms:
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80 new_perm = Permission()
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81 new_perm.permission_name = p[0]
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82 new_perm.permission_longname = p[1]
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83 try:
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84 self.sa.add(new_perm)
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85 self.sa.commit()
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86 except:
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87 self.sa.rollback()
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88 raise
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91
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92 if __name__ == '__main__':
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93 dbmanage = DbManage(log_sql=True)
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94 dbmanage.create_tables(override=True)
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95 dbmanage.admin_prompt()
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96 dbmanage.create_permissions()
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98