You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

72 lines
2.2 KiB
Python

#!/usr/bin/env python3
import sqlite3
from sys import stderr as STDERR
# create dictionary out of sqlite results
def dict_factory(cursor, row):
d = {}
for idx, col in enumerate(cursor.description):
d[col[0]] = row[idx]
return d
class SQLitedb:
db = ""
cursor = None
connection = None
lastrow = None
def __init__(self, dbpath: str):
db = dbpath
try:
self.connection = sqlite3.connect(db)
self.cursor = self.connection.cursor()
except sqlite3.Error as e:
print("Connection error: %s" % e, file=STDERR)
self.cursor.row_factory = dict_factory # every result will be a dict now
def __del__(self):
try:
self.connection.close()
except sqlite3.Error as e:
print("Couldn't gracefully close db: %s" % e, file=STDERR)
def query(self, qq: str):
try:
self.cursor.execute(qq)
self.lastrow = self.cursor.fetchall()
except sqlite3.Error as e:
print("Couldn't execute query %s, exception: %s" % (qq, e), file=STDERR)
self.lastrow = []
return self.lastrow
# sometimes we need the cursor for safety reasons, for example does sqlite3 all the security related
# escaoing in supplied strings for us, when we deliver it to con.execute in the second argument as a tuple
def getCursor(self):
return self.cursor
# we could try to utilise that ourselfs in a function. Be c a r e f u l, these values in the tuple MUST HAVE
# THE RIGHT TYPE
def safequery(self, qq: str, deliver: tuple):
try:
self.cursor.execute(qq, deliver)
self.lastrow = self.cursor.fetchall()
except sqlite3.Error as e:
print("Couldn't execute query %s, exception: %s" % (qq, e), file=STDERR)
self.lastrow = []
except TypeError as e:
print("Types in given tuple doesnt match to execute query \"%s\": %s" % (qq, e), file=STDERR)
self.lastrow = []
return self.lastrow
if __name__ == "__main__":
try:
SQLitedb("bla.db")
print("hi")
exit(0)
except KeyboardInterrupt:
pass