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309 lines
12 KiB
Python
309 lines
12 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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__revision__ = "$Id$"
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import plugins
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import os
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import time
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import conf
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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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try:
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import sqlite
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except ImportError:
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raise callbacks.Error, 'You need to have PySQLite installed to use this ' \
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'plugin. Download it at <http://pysqlite.sf.net/>'
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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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class Poll(callbacks.Privmsg, plugins.ChannelDBHandler):
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def __init__(self):
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callbacks.Privmsg.__init__(self)
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plugins.ChannelDBHandler.__init__(self)
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def makeDb(self, filename):
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if os.path.exists(filename):
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db = sqlite.connect(filename)
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else:
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db = sqlite.connect(filename)
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cursor = db.cursor()
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cursor.execute("""CREATE TABLE polls (
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id INTEGER PRIMARY KEY,
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question TEXT UNIQUE ON CONFLICT IGNORE,
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started_by INTEGER,
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open INTEGER)""")
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cursor.execute("""CREATE TABLE options (
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id INTEGER PRIMARY KEY,
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poll_id INTEGER,
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option TEXT,
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UNIQUE (poll_id, id) ON CONFLICT IGNORE)""")
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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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option_id INTEGER,
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UNIQUE (user_id, poll_id)
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ON CONFLICT IGNORE)""")
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db.commit()
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return db
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def open(self, irc, msg, args):
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"""[<channel>] <question>
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Creates a new poll with the given question.
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"""
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channel = privmsgs.getChannel(msg, args)
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question = privmsgs.getArgs(args)
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# Must be registered to create a poll
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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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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""INSERT INTO polls
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VALUES (NULL, %s, %s, 1)""",
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question, userId)
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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 close(self, irc, msg, args):
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"""[<channel>] <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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channel = privmsgs.getChannel(msg, args)
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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 must be an integer.')
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return
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db = self.getDb(channel)
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cursor = db.cursor()
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# Check to make sure that the poll exists
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cursor.execute("""SELECT id FROM polls WHERE id=%s""", id)
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if cursor.rowcount == 0:
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irc.error(msg, 'Id #%s is not an existing poll.')
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return
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cursor.execute("""UPDATE polls SET open=0 WHERE id=%s""", id)
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irc.reply(msg, conf.replySuccess)
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def add(self, irc, msg, args):
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"""[<channel>] <id> <option text>
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Add an option with the given text to the poll with the given id.
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"""
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channel = privmsgs.getChannel(msg, args)
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(poll_id, option) = privmsgs.getArgs(args, required=2)
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try:
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poll_id = int(poll_id)
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except ValueError:
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irc.error(msg, 'The id must be an integer.')
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return
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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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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""SELECT started_by FROM polls
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WHERE id=%s""",
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poll_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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if not ((userId == cursor.fetchone()[0]) or
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(ircdb.checkCapability(userId, 'admin'))):
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irc.error(msg, 'That poll isn\'t yours and you aren\'t an admin.')
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return
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cursor.execute("""INSERT INTO options VALUES
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(NULL, %s, %s)""",
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poll_id, option)
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irc.reply(msg, conf.replySuccess)
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def vote(self, irc, msg, args):
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"""[<channel>] <poll id> <option id>
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Vote for the option with the given id on the poll with the given poll
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id. This command can also be used to override any previous vote.
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"""
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channel = privmsgs.getChannel(msg, args)
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(poll_id, option_id) = privmsgs.getArgs(args, required=2)
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try:
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poll_id = int(poll_id)
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option_id = int(option_id)
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except ValueError:
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irc.error(msg, 'The poll id and option id '
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'arguments must be an integers.')
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return
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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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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""SELECT open
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FROM polls WHERE id=%s""",
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poll_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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elif cursor.fetchone()[0] == 0:
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irc.error(msg, 'That poll is closed.')
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return
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cursor.execute("""SELECT id FROM options
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WHERE poll_id=%s
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AND id=%s""",
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poll_id, option_id)
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if cursor.rowcount == 0:
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irc.error(msg, 'There is no such option.')
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return
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cursor.execute("""SELECT option_id FROM votes
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WHERE user_id=%s AND poll_id=%s""",
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userId, poll_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, poll_id, option_id)
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else:
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cursor.execute("""UPDATE votes SET option_id=%s
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WHERE user_id=%s AND poll_id=%s""",
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option_id, userId, poll_id)
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irc.reply(msg, conf.replySuccess)
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def results(self, irc, msg, args):
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"""[<channel>] <id>
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Shows the results for the poll with the given id.
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"""
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channel = privmsgs.getChannel(msg, args)
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poll_id = privmsgs.getArgs(args)
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try:
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poll_id = int(poll_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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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""SELECT id, question, started_by, open
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FROM polls WHERE id=%s""",
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poll_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, open) = cursor.fetchone()
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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' % \
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(id, question, startedBy)
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cursor.execute("""SELECT count(user_id), option_id
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FROM votes
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WHERE poll_id=%s
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GROUP BY option_id
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ORDER BY count(user_id) DESC""",
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poll_id)
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if cursor.rowcount == 0:
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s = 'This poll has no votes yet.'
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else:
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results = []
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for count, option_id in cursor.fetchall():
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cursor.execute("""SELECT option FROM options
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WHERE id=%s""", option_id)
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option = cursor.fetchone()[0]
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results.append('%s: %s' % (option, count))
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s = utils.commaAndify(results)
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reply += ' - %s' % s
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irc.reply(msg, reply)
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def list(self, irc, msg, args):
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"""takes no arguments.
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Lists the currently open polls for the channel and their ids.
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"""
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channel = privmsgs.getChannel(msg, args)
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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""SELECT id, question FROM polls WHERE open=1""")
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if cursor.rowcount == 0:
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irc.reply(msg, 'This channel currently has no open polls.')
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return
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polls = ['#%s: %r' % (id, q) for id, q in cursor.fetchall()]
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irc.reply(msg, utils.commaAndify(polls))
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def options(self, irc, msg, args):
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"""<id>
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Lists the options for the poll with the given id.
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"""
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channel = privmsgs.getChannel(msg, args)
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poll_id = privmsgs.getArgs(args)
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db = self.getDb(channel)
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cursor = db.cursor()
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cursor.execute("""SELECT id, option FROM options
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WHERE poll_id=%s""",
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poll_id)
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if cursor.rowcount == 0:
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irc.reply(msg, 'This poll has no options yet '
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'or no such poll exists.')
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return
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options = ['%s: %r' % (id, o) for id, o in cursor.fetchall()]
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irc.reply(msg, utils.commaAndify(options))
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Class = Poll
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# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
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