Ich verwende eine Schleife, um den Inhalt von fetchone(), jedes Mal, wenn Code fetchone() liest der Cursor bewegt sich in die nächste Zeile. Ich verstehe, dass ich vorsichtig sein muss. Ich bin mit dem Beispiel hier https://dev.mysql.com/doc/connector-python/en/connector-python-api-mysqlcursor-fetchone.html dies funktioniert, wenn ich mehr als eine Zeile haben, aber wenn es eine einzige Zeile bekomme ich einen FehlerLesen erste Zeile in Schleife mit sqlite Fetchone()
for k, v in cur.fetchone().items():
AttributeError: 'NoneType' object has no attribute 'items'
Die beiden relevanten Funktionen
def dict_factory(cursor, row):
d = {}
for idx, col in enumerate(cursor.description):
d[col[0]] = row[idx]
return d
def open_sql(sql_folder, sql_name, sql_table):
# databases are located at /work/jmjohnso1/db_project
path_name = os.path.join(sql_folder,sql_name).strip()
con = lite.connect(path_name)
con.row_factory = dict_factory
cur = con.cursor()
cur.execute('SELECT * FROM ' + sql_table)
dict_contents = defaultdict(list)
for row in cur:
for k, v in cur.fetchone().items():
dict_contents[k].append(v)
con.close()
print(dict_contents)
return dict_contents
Falls Sie wollen der gesamte Code:
# python3.5
# pymongo version 3.2.2
# MongoDB shell version: 3.0.11
import os
import pymongo
from pymongo import MongoClient
import sqlite3 as lite
import pyewf
import hashlib
from itertools import chain
from collections import defaultdict
import pprint
def list_sql_db(folder):
# need a list for multiprocessing so I made a file.
file_name = os.path.join(folder, 'sql_db')
if not os.path.isfile(file_name):
with open (file_name, 'w') as line:
for (dirpath, dirs, files) in os.walk(folder):
for name in files:
line.write(name + '\n')
return file_name
def dict_factory(cursor, row):
d = {}
for idx, col in enumerate(cursor.description):
d[col[0]] = row[idx]
return d
def open_sql(sql_folder, sql_name, sql_table):
# databases are located at /work/jmjohnso1/db_project
path_name = os.path.join(sql_folder,sql_name).strip()
con = lite.connect(path_name)
con.row_factory = dict_factory
cur = con.cursor()
cur.execute('SELECT * FROM ' + sql_table)
dict_contents = defaultdict(list)
for row in cur:
for k, v in cur.fetchone().items():
dict_contents[k].append(v)
con.close()
print(dict_contents)
return dict_contents
def insert_tsk_mongo(sql_folder, sql_name, sql_table):
client = MongoClient() # connect to mongodb
db = client.nus # make or use a db called nus
contents = open_sql(sql_folder, sql_name, sql_table)
collection = sql_name.strip().replace('-','_') # because mongo will write but not read a collection with -
# document_id = db[collection].insert({ # sql_name is the hard drive name
# sql_table:
# contents
# })
###############################################################################
sql_folder = '/work/jmjohnso1/db_project'
# sql_tables = ['tsk_fs_info', 'tsk_image_info',
# 'tsk_db_info ', 'tsk_image_names',
# 'tsk_file_layout', 'tsk_objects',
# 'tsk_files', 'tsk_vs_info', 'tsk_vs_parts']
sql_tables = ['tsk_fs_info']
sql_folder_name = list_sql_db(sql_folder)
with open (sql_folder_name, 'r') as read:
sql_names = read.readlines()
for sql_name in sql_names:
for sql_table in sql_tables:
insert_tsk_mongo(sql_folder, sql_name, sql_table)
break