[6de8ee]: examples / sqlgen / driver.py Maximize Restore History

Download this file

driver.py    85 lines (75 with data), 3.1 kB

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
# $Id$
# coding=utf-8
#
# Copyright Š 2008 Bruce Frederiksen
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
from __future__ import with_statement
import contextlib
from pyke import test
import load_mysql_schema
class cursor(object):
rowcount = 1 # This is only check for unique queries...
def __init__(self, width):
self.width = width
def execute(self, str, parameters=None):
print "execute got:"
print str
if parameters: print "with:", parameters
def fetchone(self, base = 44):
return (base,) * self.width
def fetchall(self):
return tuple(self.fetchone(i) for i in range(1, 5))
def init():
global db
import MySQLdb as db
test.init()
with contextlib.closing(db.connect(user="movie_user", passwd="user_pw",
db="movie_db")) \
as conn:
load_mysql_schema.load_schema(test.Engine, db, conn)
def run_plan(globals, locals):
plan = locals['plan']
args = locals['args']
starting_keys = dict(zip(args[0], range(1, len(args[0]) + 1)))
print "executing the plan with debug database cursor"
ans = plan(cursor(len(args[1])), starting_keys)
print "plan returned:", ans
while True:
print
data_values = raw_input("%s: " % str(args[0])).split()
if not data_values: break
starting_keys = dict(zip(args[0], data_values))
print "executing the plan with real database cursor"
with contextlib.closing(db.connect(user="movie_user",
passwd="user_pw",
db="movie_db")) \
as conn:
with contextlib.closing(conn.cursor()) as cur:
ans = plan(cur, starting_keys)
print "plan returned:", ans
def run():
if not test.Did_init: init()
test.run('database', fn_to_run_plan = run_plan)
def doc_test():
import doctest
import sys
sys.exit(doctest.testmod()[0])
if __name__ == "__main__":
doc_test()