def printMainPage(name, isPriv):
'''
Display the main menu interface along with the name of the user.
inputs:
name -- str
isPriv -- bool
'''
# underlined letter
u_O = bcolor.u_ualphas[14]
u_P = bcolor.u_ualphas[15]
u_Q = bcolor.u_ualphas[16]
u_S = bcolor.u_ualphas[18]
userType = bcolor.cyan('privileged') if isPriv else ''
print()
print('* * WELCOME {}! * * {}'.format(name, userType))
print()
print(bcolor.pink('[ M E N U ]'))
print()
print(' {}: {}ost a {}uestion'.format(bcolor.bold('pq'), u_P, u_Q))
print(' {}: {}earch for {}osts'.format(bcolor.bold('sp'), u_S, u_P))
print(' {}: {}ign {}ut'.format(bcolor.bold('so'), u_S, u_O))
print(' {}: {}uit'.format(bcolor.bold('q'), u_Q))
print()
def editPost(conn, curr, pid):
'''
Edit the title and body of the selected post.
inputs:
conn: sqlite3.Connection
curr: sqlite3.Cursor
pid: pid
'''
curr.execute("SELECT title, body FROM posts WHERE pid=?;", (pid, ))
currT, currB = curr.fetchone()
print(bcolor.pink("\n< Edit Post >"))
confirmed = False
while not confirmed:
nTitle, nBody = changeTitleAndBody(currT, currB)
confirmed = isChangeValid(nTitle, nBody)
curr.execute('''
UPDATE
posts
SET
title = ?,
body = ?
WHERE
pid = ?;''', (nTitle, nBody, pid))
conn.commit()
print(bcolor.green("\nPost Edited!"))
def castVote(conn, curr, pid, uid):
'''
Prompt the user to cast a vote to the selected post.
Inputs:
conn -- sqlite3.Connection
curr -- sqllite3.Connection
pid -- selected post (str)
uid -- uid of the current user (str)
'''
print('\n' + bcolor.pink('< Vote on the Post >'))
prompt = 'Do you want to vote on this post? [y/n] '
confirm = page.getValidInput(prompt, ['y', 'n'])
if confirm == 'y':
# checks if the user has already voted for the selected post
curr.execute('SELECT * FROM votes WHERE pid = ? and uid = ?;',
[pid, uid])
if curr.fetchone():
print(
bcolor.errmsg(
"action failed: you've already voted for this post."))
else:
vdate = str(date.today())
vno = getVno(curr)
curr.execute('INSERT INTO votes VALUES (?, ?, ?, ?);',
[pid, vno, vdate, uid])
conn.commit()
print()
print(bcolor.green('Voting Completed!'))
def postAns(conn, curr, poster, qid):
'''
Prompt the user to post an answer for the selected question.
This function assumes the type of the selected post is question.
Inputs:
conn -- sqlite3.Connection
curr -- sqllite3.Connection
poster -- uid of the current user (str)
qid -- selected post (str)
'''
print()
print(bcolor.pink('< Write an Answer >'))
infoList = getPInfo(curr)
if infoList:
infoList.append(poster) # infoList = [pid, pdate, title, body, poster]
curr.execute('INSERT INTO posts VALUES (?, ?, ?, ?, ?);', infoList)
curr.execute('INSERT INTO answers VALUES (?, ?);', [infoList[0], qid])
conn.commit()
print()
print(bcolor.green('Posting Completed!'))
def printFirstScreen():
'''
Display the interface of the first screen of the program.
'''
print()
print(bcolor.pink('Menu:'))
print()
print(' {}: {}ign {}n'.format(bcolor.bold('si'), bcolor.u_ualphas[18], bcolor.u_ualphas[8]))
print(' {}: {}ign {}p'.format(bcolor.bold('su'), bcolor.u_ualphas[18], bcolor.u_ualphas[20]))
print(' {}: {}uit'.format(bcolor.bold('q'), bcolor.u_ualphas[16]))
print()
def addTag(conn, curr, pid):
'''
Add tags to the selected post.
Inputs:
conn -- sqlite3.Connection
curr -- sqllite3.Cursor
pid -- pid of the selected post (str)
'''
print(bcolor.pink('\n< Add Tags >'))
currentTags = getCurrentTag(curr, pid)
displayCurrentTag(currentTags)
valid = False
while not valid:
newTags = getValidTag()
numNewTags = len(newTags)
duplicates, nonDuplicates = getDuplicateTag(currentTags, newTags)
numDups = len(duplicates)
dsuffix = genSuffix(duplicates)
tagsToAdd = True
if numDups > 0:
print(bcolor.errmsg('error: post already has the following tag{}: {}'.format(dsuffix, ', '.join(duplicates))))
if numNewTags == numDups: # user enters duplicates only
tagsToAdd = False
prompt = 'Do you want to add another tag to the post? [y/n] '
valid = not page.continueAction(prompt)
else:
newTags = nonDuplicates
nsuffix = genSuffix(newTags)
if tagsToAdd:
prompt = 'Do you want to add: "{}" ? [y/n] '.format('", "'.join(newTags))
uin = page.getValidInput(prompt, ['y','n'])
if uin == 'y':
valid = True
insertTag(conn, curr, pid, newTags)
print(bcolor.green("\nTag{} Added!".format(nsuffix)))
else:
prompt = 'Do you still want to add tags to the post? [y/n] '
valid = not page.continueAction(prompt)
def giveBadge(conn, curr, uid):
'''
Gives a badge to the poster of the selected post.
Inputs:
conn -- sqlite3.Connection
curr -- sqlite3.Cursor
uid -- poster of the selected post (str)
'''
bdate = str(date.today())
if not badgeAvailable(curr):
print(bcolor.errmsg("action failed: badge is not available now."))
elif isBadgeGivenTdy(curr, uid, bdate):
print(bcolor.errmsg("action failed: this poster has already received a badge today."))
else:
print(bcolor.pink('\n< Give a Badge >'))
displayAvailBadges(curr)
valid = False
while not valid:
bname = getBadge()
badgeRow = getBadgeRow(curr, bname)
if badgeRow: # badge already exists
prompt = 'Do you want to give badge: "{}" to the poster? [y/n] '.format(badgeRow['bname'])
uin = page.getValidInput(prompt, ['y','n'])
if uin == 'y':
curr.execute('INSERT INTO ubadges VALUES (?, ?, ?);',(uid, bdate, badgeRow['bname']))
conn.commit()
print(bcolor.green('\nBadge Awarded to the poster!'))
valid = True
else:
print(bcolor.errmsg('action failed: badge: "{}" is not available.'.format(bname)))
if not valid:
prompt = 'Do you still want to give a badge? [y/n] '
valid = not page.continueAction(prompt)
def postQ(conn, curr, poster):
'''
Prompt the user for a question post.
pid is generated by the system.
-- format: p'x', where x is an integer 0 <= x <= 999.
Inputs:
conn -- sqlite3.Connection
curr -- sqllite3.Cursor
poster -- uid of the signed in user (str)
'''
print('\n' + bcolor.pink('< Post a Question >'))
infoList = getPInfo(curr)
if infoList:
infoList.append(poster) # infoList = [pid, pdate, title, body, poster]
curr.execute('INSERT INTO posts VALUES (?, ?, ?, ?, ?);', infoList)
curr.execute('INSERT INTO questions VALUES (?, NULL);', [infoList[0]])
conn.commit()
print()
print(bcolor.green('Posting Completed!'))
def getKeywords():
'''
Prompt the user for search keywords and return them.
return:
keywords -- dict
'''
os.system('clear')
print(bcolor.pink('< Search Posts >'))
prompt = "Enter keywords to search, each separated by a comma: "
valid = False
while not valid:
keywords = input(prompt).lower().split(',')
keywords = filter(lambda kw: len(kw.strip()) > 0, keywords)
keywords = list(map(lambda kw: '%' + kw.strip() + '%', keywords))
keywords = {'kw{}'.format(i): kw for i, kw in enumerate(keywords)}
if len(keywords) > 0:
valid = True
else:
print(bcolor.errmsg('error: search keywords cannot be empty'))
return keywords
def markAnswer(conn, curr, aid):
'''
Mark the selected answer post as accepted and update it into the database.
Prompts the user whether to overwrite if an accepted answer already exists.
inputs:
conn -- sqlite3.Connection
curr -- sqlite3.Cursor
aid -- pid of answer post (str)
'''
print(bcolor.pink('\n< Mark as Accepted Answer >'))
curr.execute("SELECT * FROM answers where pid=?;", (aid, ))
qid = curr.fetchone()['qid']
prompt = 'Do you want to mark this post as an accepted answer? [y/n] '
uin = page.getValidInput(prompt, ['y','n'])
if uin == 'y':
curr.execute("SELECT * FROM questions where pid=? and theaid IS NOT NULL;", (qid, ))
aaExists = True if curr.fetchone() else False # aa: accepted answer
if aaExists:
prompt = bcolor.warning("Warning: Accepted answer already exists. Proceed to change? [y/n] ")
uin = page.getValidInput(prompt, ['y','n'])
if uin == 'y':
changeAA(conn, curr, qid, aid)
conn.commit()
else:
print('\nMarking answer is cancelled.')
else:
changeAA(conn, curr, qid, aid)
conn.commit()
