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294 lines
11 KiB
Python
294 lines
11 KiB
Python
#!/usr/bin/python
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# -*- coding:utf-8 -*-
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###
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# Copyright (c) 2002, Stéphan Kochen
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions, and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions, and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the author of this software nor the name of
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# contributors to this software may be used to endorse or promote products
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# derived from this software without specific prior written consent.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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###
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"""
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A module for managing and voting on polls.
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"""
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import plugins
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import utils
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import ircdb
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import ircutils
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import privmsgs
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import callbacks
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import conf
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import os.path
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import time
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import sqlite
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def configure(onStart, afterConnect, advanced):
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# This will be called by setup.py to configure this module. onStart and
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# afterConnect are both lists. Append to onStart the commands you would
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# like to be run when the bot is started; append to afterConnect the
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# commands you would like to be run when the bot has finished connecting.
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from questions import expect, anything, something, yn
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onStart.append('load Poll')
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dbFilename = os.path.join(conf.dataDir, 'Poll.db')
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def makeDb(dbfilename):
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if os.path.exists(dbfilename):
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db = sqlite.connect(dbfilename)
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else:
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db = sqlite.connect(dbfilename)
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cursor = db.cursor()
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try:
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cursor.execute("""SELECT * FROM polls LIMIT 1""")
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except sqlite.DatabaseError:
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cursor.execute("""CREATE TABLE polls (
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id INTEGER PRIMARY KEY,
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question TEXT,
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started_by INTEGER,
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yes INTEGER,
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no INTEGER,
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expires TIMESTAMP)""")
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try:
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cursor.execute("""SELECT * FROM votes LIMIT 1""")
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except sqlite.DatabaseError:
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cursor.execute("""CREATE TABLE votes (
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user_id INTEGER,
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poll_id INTEGER,
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vote BOOLEAN)""")
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db.commit()
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return db
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class Poll(callbacks.Privmsg):
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def __init__(self):
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callbacks.Privmsg.__init__(self)
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self.db = makeDb(dbFilename)
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def new(self, irc, msg, args):
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"""[<lifespan in seconds>] <question>
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Creates a new poll with the given question and optional lifespan.
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Without a lifespan the poll will never expire and accept voting
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until it is closed or removed.
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"""
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(lifespan, question) = privmsgs.getArgs(args, optional=1)
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try:
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lifespan = int(lifespan)
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except ValueError:
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if question:
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question = '%s %s' % (lifespan, question)
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else:
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question = lifespan
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lifespan = 0
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if lifespan:
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lifespan += time.time()
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if not question:
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raise callbacks.ArgumentError
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try:
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userId = ircdb.users.getUserId(msg.prefix)
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except KeyError:
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irc.error(msg, conf.replyNotRegistered)
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return
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cursor = self.db.cursor()
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cursor.execute("""INSERT INTO polls VALUES
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(NULL, %s, %s, 0, 0, %s)""", question,
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userId, lifespan)
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self.db.commit()
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cursor.execute("""SELECT id FROM polls WHERE question=%s""", question)
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id = cursor.fetchone()[0]
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irc.reply(msg, '%s (poll #%s)' % (conf.replySuccess, id))
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def open(self, irc, msg, args):
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"""[<lifespan in seconds>] <id>
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Reopens a closed poll with the given <id> and optional lifespan.
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Without a lifespan the poll will never expire and accept voting
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until it is closed or removed.
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"""
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(lifespan, id) = privmsgs.getArgs(args, optional=1)
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if not id:
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id = lifespan
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lifespan = 0
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else:
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try:
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lifespan = int(lifespan)
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except ValueError:
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irc.error(msg, 'The <lifespan> argument must be an integer.')
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return
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try:
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id = int(id)
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except ValueError:
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irc.error(msg, 'The <id> argument must be an integer.')
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return
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if lifespan:
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lifespan += time.time()
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cursor = self.db.cursor()
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cursor.execute("""UPDATE polls SET expires=%s WHERE id=%s""",
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lifespan, id)
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self.db.commit()
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irc.reply(msg, conf.replySuccess)
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def close(self, irc, msg, args):
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"""<id>
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Closes the poll with the given <id>; further votes will not be allowed.
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"""
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id = privmsgs.getArgs(args)
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try:
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id = int(id)
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except ValueError:
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irc.error(msg, 'The <id> argument must be an integer.')
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return
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cursor = self.db.cursor()
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cursor.execute("""UPDATE polls SET expires=%s WHERE id=%s""",
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int(time.time()), id)
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self.db.commit()
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irc.reply(msg, conf.replySuccess)
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def vote(self, irc, msg, args):
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"""<id> <Yes,No>
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Vote yes or no on an active poll with the given id. This command can
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also be used to override the previous vote.
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"""
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(id, vote) = privmsgs.getArgs(args, required=2)
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try:
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id = int(id)
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except ValueError:
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irc.error(msg, 'The <id> argument must be an integer.')
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return
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if vote.capitalize() == 'Yes':
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vote = 1
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elif vote.capitalize() == 'No':
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vote = 0
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else:
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raise callbacks.ArgumentError
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try:
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userId = ircdb.users.getUserId(msg.prefix)
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except KeyError:
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irc.error(msg, conf.replyNotRegistered)
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return
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cursor = self.db.cursor()
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cursor.execute("""SELECT yes, no, expires
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FROM polls WHERE id=%s""", id)
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if cursor.rowcount == 0:
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irc.error(msg, 'There is no such poll.')
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return
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(yVotes, nVotes, expires) = cursor.fetchone()
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expires = float(expires)
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if expires != 0 and time.time() >= expires:
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irc.error(msg, 'That poll is closed.')
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return
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cursor.execute("""SELECT vote FROM votes WHERE user_id=%s
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AND poll_id=%s""", userId, id)
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if cursor.rowcount == 0:
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cursor.execute("""INSERT INTO votes VALUES (%s, %s, %s)""",
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userId, id, vote)
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if vote:
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yVotes += 1
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sql = """UPDATE polls SET yes=%s WHERE id=%%s""" % yVotes
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else:
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nVotes += 1
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sql = """UPDATE polls SET no=%s WHERE id=%%s""" % nVotes
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cursor.execute(sql, id)
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self.db.commit()
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irc.reply(msg, 'You voted %s on poll #%s.'\
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% (ircutils.bold(args[1].capitalize()), id))
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else:
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oldVote = cursor.fetchone()[0]
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if vote == int(oldVote):
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irc.error(msg, 'You already voted %s on that poll.'\
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% ircutils.bold(args[1].capitalize()))
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return
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elif vote:
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yVotes += 1
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nVotes -= 1
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else:
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nVotes += 1
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yVotes -= 1
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cursor.execute("""UPDATE polls SET yes=%s, no=%s WHERE id=%s""",
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yVotes, nVotes, id)
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cursor.execute("""UPDATE votes SET vote=%s WHERE user_id=%s
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AND poll_id=%s""", vote, userId, id)
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self.db.commit()
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irc.reply(msg, 'Your vote on poll #%s has been updated to %s.'\
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% (id, ircutils.bold(args[1].capitalize())))
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def results(self, irc, msg, args):
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"""<id>
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Shows the (current) results for the poll with the given id.
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"""
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id = privmsgs.getArgs(args)
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try:
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id = int(id)
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except ValueError:
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irc.error(msg, 'The <id> argument must be an integer.')
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return
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cursor = self.db.cursor()
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cursor.execute("""SELECT * FROM polls WHERE id=%s""", id)
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if cursor.rowcount == 0:
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irc.error(msg, 'There is no such poll.')
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return
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(id, question, startedBy, yVotes, nVotes, expires) = cursor.fetchone()
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tVotes = yVotes + nVotes
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try:
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startedBy = ircdb.users.getUser(msg.prefix).name
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except KeyError:
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startedBy = 'an unknown user'
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return
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reply = 'Results for poll #%s: "%s" by %s' % (id, question, startedBy)
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if tVotes == 0:
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reply = '%s - There have been no votes on this poll yet.' % reply
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else:
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pc = lambda x: int(float(x) / float(tVotes) * 100.0)
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reply = '%s - %s %s (%s%%), %s %s (%s%%), %s %s.'\
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% (reply, ircutils.bold('Yes:'), yVotes, pc(yVotes),
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ircutils.bold('No:'), nVotes, pc(nVotes),
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ircutils.bold('Total votes:'), tVotes)
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expires = float(expires)
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if expires != 0:
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if time.time() >= expires:
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reply = '%s Poll is closed.' % reply
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else:
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expires -= time.time()
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reply = '%s Poll expires in %s' % (reply,
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utils.timeElapsed(expires))
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irc.reply(msg, reply)
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Class = Poll
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# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
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