如果看起来我在解决问题时遇到一些麻烦,我道歉。基本上,我正在编写一个消息系统,用户可以在其中向其他用户发送消息并在收件箱中查看他们的消息。以下是我的数据库和GUI的截图: http://imgur.com/a/ra5Di
这是我在收件箱中显示消息的功能:
#DISPLAY MESSAGE IN INBOX FUNCTION
def displayMessageInbox(mf, c, vm):
recipient = config.nameInput
cursor.execute("""SELECT CONCAT('Title: ', m.title, '\n',
'From: ', s.sender, '\n',
'Sent: ', s.timeSent)
FROM Message m
INNER JOIN SentMessage s ON m.id = s.messageID
WHERE s.recipient = %s""", (recipient))
rows = cursor.fetchall()
i = 3
for message in rows:
messageInfo = tk.Label(mf, text=message, bg="white", anchor=tk.W,
justify=tk.LEFT, width=30)
messageInfo.grid(row=i, column=0, sticky=tk.W)
viewReply = tk.Button(mf, text="View/Reply", anchor=tk.W,
command=lambda:c.show_frame(vm))
viewReply.grid(row=i, column=1,padx=10, sticky=tk.W)
i+=1
这是我的功能,用于在用户点击"查看/回复后显示消息及其内容。"请注意,它正在选择特定的消息ID,而不是我实际想要显示的消息ID。换句话说,它只是占位符。
#READ MESSAGE CONTENT FUNCTION
def readMessage(mf):
mID = 'a6bb9c97-0f59-44ea-9f2b-759ffbac5031'
cursor.execute("""SELECT CONCAT('From: ', sm.sender, '\n',
'Title: ', m.title, '\n',
'Message: ', m.content)
FROM Message m
INNER JOIN SentMessage sm ON m.id = sm.messageID
WHERE m.id = %s""", (mID))
rows = cursor.fetchone()
message = rows[0]
readMessageLabel = tk.Label(mf, text=message, bg="white", anchor=tk.W,
justify=tk.LEFT, width=100)
readMessageLabel.grid(row=3, column=0, padx=10, sticky=tk.W)
所以我的问题是这个......我希望用户能够点击"查看/回复"并查看相应的消息,而不仅仅是占位符。我甚至不知道如何开始解决这个问题。我认为我想要做的是从displayMessageInfo中的特定行获取消息id for循环,但我并不完全确定。有什么想法吗?
答案 0 :(得分:0)
显然,mID
是一个静态值。在用户按下“查看/回复”后,您需要通过将其值传递到readMessage
函数以条件相应的消息来使该变量动态化。
虽然我不知道应用程序界面控件的设置,但考虑:1)查询消息ID,2)将其保存到变量,3)将其传递给函数。也许这可以让你开始:
def displayMessageInbox(mf, c, vm):
recipient = config.nameInput
cursor.execute("""SELECT m.id, CONCAT('Title: ', m.title, '\n',
'From: ', s.sender, '\n',
'Sent: ', s.timeSent) As messagetxt
FROM Message m
INNER JOIN SentMessage s ON m.id = s.messageID
WHERE s.recipient = %s""", (recipient))
i = 3
for message in cursor.fetchall():
mID = message[0]
messagetxt = message[1]
...
if (viewReply == somevalue): # ENTER LOGIC TO CAPTURE WHICH MESSAGE USER SELECTED
readMessage(mf, mID)
def readMessage(mf, mID):
cursor.execute("""SELECT CONCAT('From: ', sm.sender, '\n',
'Title: ', m.title, '\n',
'Message: ', m.content)
FROM Message m
INNER JOIN SentMessage sm ON m.id = sm.messageID
WHERE m.id = %s""", (mID))
rows = cursor.fetchone()
message = rows[0]
...