0
我想寫一個函數來做一個簡單的插入。 這是我迄今Python3和Sqlite3不能插入
#! /usr/bin/env python3
#import
import sqlite3 as lite
#trying an insert version 1 (does nothing)
def createTableTask():
"""
Create a new table with the name Task
"""
#Connnection to the database and cursor creation
con = lite.connect('./exemple.sqlite')
con.row_factory = lite.Row
cur = con.cursor()
#that does nothing
try:
cur.execute('''CREATE TABLE Tasks (\
Name TEXT PRIMARY KEY, \
Description TEXT, \
Priority TEXT);''')
except lite.IntegrityError as error_SQLite:
print("error: "+ str(error_SQLite))
else:
print("No error has occured.")
con.close();
def insert1():
"""
insert a new task
"""
#Allocating variables data
taskName = 'finish code'
taskDescription = 'debug'
taskPriority = 'normal'
#Connnection to the database and cursor creation
con = lite.connect('./exemple.sqlite')
con.row_factory = lite.Row
cur = con.cursor()
#that does nothing
try:
with con:
cur.execute('''INSERT INTO Tasks (Name, Description, Priority) \
VALUES (?, ?, ?)''', (taskName, taskDescription, taskPriority))
except lite.IntegrityError as error_SQLite:
print("error: "+ str(error_SQLite))
else:
print("No error has occured. but no insert happend ?")
con.close();
def showResult():
"""
Show the result of the insert
"""
con = lite.connect('./exemple.sqlite')
con.row_factory = lite.Row
cur = con.cursor()
cur.execute\
('''SELECT * FROM Tasks ;''')
row = cur.fetchone()
while row:
print(row["Name"], ' | ', row["Description"], ' | ', \
row["Priority"])
row = cur.fetchone()
con.close();
#trying an insert version 2 (this one crash giving :Value error)
def insert2():
"""
insert a new task
"""
#Allocating variables data
taskName = 'finish code'
taskDescription = 'debug'
taskPriority = 'normal'
#Connnection to the database and cursor creation
con = lite.connect('./exemple.sqlite')
con.row_factory = lite.Row
cur = con.cursor()
queryInsert = ('''INSERT INTO Tasks (Name, Description, Priority) \
VALUES (?, ?, ?)''', (taskName, taskDescription, taskPriority))
try:
with con:
cur.execute(queryInsert)
except lite.IntegrityError as error_SQLite:
print("error: "+ str(error_SQLite))
else:
print("No error has occured.")
con.close();
def run():
createTableTask()
insert1()
showResult()
insert2()
showResult()
#calling section
run()
的問題是，沒有任何插件的，我迄今取得的工作嘗試。 第一個沒有什麼，但有一個正確的語法
第二個，它崩潰了。
這裏是輸出：
[email protected]:~/Documents/testing$ ./exemp.py
No error has occured.
No error has occured. but no insert happend ?
Traceback (most recent call last):
File "./exemp.py", line 98, in
run()
File "./exemp.py", line 94, in run
insert2()
File "./exemp.py", line 83, in insert2
cur.execute(queryInsert)
ValueError: operation parameter must be str
[email protected]:~/Documents/testing$ sqlite3 exemple.sqlite
SQLite version 3.8.2 2013-12-06 14:53:30
Enter ".help" for instructions
Enter SQL statements terminated with a ";"
sqlite> SELECT * FROM Tasks;
sqlite>
我正在尋找最簡單的解決，也許知道什麼是錯我的代碼。因爲現在我不知道沒有插入的是怎麼回事。通常它應該，還是我錯過了什麼？