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