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338 lines
13 KiB
338 lines
13 KiB
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# redfam.py
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#
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# Copyright 2015 GOLDERWEB – Jonathan Golder <jonathan@golderweb.de>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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#
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#
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"""
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Provides classes for working with RedFams
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"""
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import hashlib
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import re
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import locale
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from datetime import datetime
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import pywikibot
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from mysqlred import MysqlRedFam
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class RedFam:
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"""
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Basic class for RedFams, containing the basic data structure
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"""
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def __init__( self, fam_hash=None, articlesList=None, red_page_id=None, beginning=None, ending=None, status=0 ):
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"""
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Generates a new RedFam object
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@param articlesList list List of articles of redundance family
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@param beginning datetime Beginning date of redundance diskussion
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@param ending datetime Ending date of redundance diskussion
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"""
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#if( beginning ):
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# self.add_beginning( beginning )
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# self._beginning = None
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#if( ending ):
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# self.add_ending( ending )
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#else:
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# self._ending = None
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#self._status = status # __TODO__ STATUS CODE
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#self._handle_db()
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def __repr__( self ):
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if( self._beginning ):
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beginning = ", beginning=" + repr( self._beginning )
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else:
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beginning = ""
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if( self._ending ):
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ending = ", ending=" + repr( self._ending )
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else:
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ending = ""
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__repr = "RedFam( " + repr( self._articlesList ) + beginning + ending + ", status=" + repr( self._status ) + " )"
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return __repr
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class RedFamParser( RedFam ):
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"""
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Provides an interface to RedFam for adding/updating redundance families while parsig redundance pages
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"""
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# Define the timestamp format
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__timestamp_format = "%H:%M, %d. %b. %Y"
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# Define section heading re.pattern
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__sectionhead_pat = re.compile( r"^(=+)(.*\[\[.+\]\].*\[\[.+\]\].*)\1" )
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# Define timestamp re.pattern
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__timestamp_pat = re.compile( r"(\d{2}:\d{2}), (\d{1,2}). (Jan|Feb|Mär|Apr|Mai|Jun|Jul|Aug|Sep|Okt|Nov|Dez).? (\d{4})" )
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# Textpattern for recognisation of done-notices
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__done_notice = ":<small>Archivierung dieses Abschnittes wurde gewünscht von:"
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__done_notice2 = "{{Erledigt|"
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def __init__( self, heading, red_page_id, red_page_archive, beginning, ending=None ):
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"""
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Creates a RedFam object based on data collected while parsing red_pages combined with possibly former known data from db
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@param red_fam_heading string String with wikitext heading of redundance section
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@param red_page_id int MediaWiki page_id of red_page containing red_fam
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@param red_page_archive bool Is red_page an archive
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@param beginning datetime Timestamp of beginning of redundance discussion
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string Timestamp of beginning of redundance discussion as srftime parseable string
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@param ending datetime Timestamp of ending of redundance discussion
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string Timestamp of ending of redundance discussion as srftime parseable string
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"""
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## Set object attributes:
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self._red_page_id = red_page_id
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self._red_page_archive = red_page_archive
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# Method self.add_beginning sets self._beginning directly
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self.add_beginning( beginning )
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# Method self.add_ending sets self._ending directly
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if( ending ):
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self.add_ending( ending )
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else:
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#If no ending was provided set to None
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self._ending = None
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self._status = None
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# Parse the provided heading of redundance section to set self._articlesList
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self.heading_parser( heading )
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# Calculates the sha1 hash over self._articlesList to rediscover known redundance families
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self.fam_hash()
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# Open database connection, ask for data if existing, otherwise create entry
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self.__handle_db()
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# Check status changes
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self.status()
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# Triggers db update if anything changed
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self.changed()
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def __handle_db( self ):
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"""
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Handles opening of db connection
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"""
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# We need a connection to our mysqldb
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self.__mysql = MysqlRedFam( self._fam_hash )
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if not self.__mysql.data:
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self.__mysql.add_fam( self._articlesList, self._heading, self._red_page_id, self._beginning, self._ending )
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def heading_parser( self, heading ):
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"""
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Parses given red_fam_heading string and saves articles list
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"""
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# Predefine a pattern for wikilinks' destination
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wikilink_pat = re.compile( r"\[\[([^\[\]\|]*)(\]\]|\|)" )
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# Parse content of heading for generating section links later
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match = self.__sectionhead_pat.search( heading )
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if match:
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self._heading = match.group(2).lstrip()
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else:
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raise ValueError( "Heading is not valid" )
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# We get the pages in first [0] element iterating over wikilink_pat.findall( line )
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self._articlesList = [ link[0] for link in wikilink_pat.findall( self._heading ) ]
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# Catch sections with more then 8 articles, print error
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if len( self._articlesList ) > 8:
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pywikibot.output( "{datetime} – \03{{lightred}}[WARNING] – Maximum number of articles in red_fam exceeded, maximum number is 8, {number:d} were given\n{repress}".format( datetime=datetime.now().strftime("%Y-%m-%d %H:%M:%S (%Z)"), number=len( self._articlesList ), repress=repr( self ) ) )
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self._articlesList = self._articlesList[:8]
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def fam_hash( self ):
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"""
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Calculates the SHA-1 hash for the articlesList of redundance family.
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Since we don't need security SHA-1 is just fine.
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@returns str String with the hexadecimal hash digest
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"""
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h = hashlib.sha1()
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h.update( str( self._articlesList ).encode('utf-8') )
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self._fam_hash= h.hexdigest()
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def add_beginning( self, beginning ):
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"""
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Adds the beginning date of a redundance diskussion to the object and sets changed to True
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@param datetime datetime Beginning date of redundance diskussion
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"""
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self._beginning = self.__datetime( beginning )
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def add_ending( self, ending ):
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"""
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Adds the ending date of a redundance diskussion to the object. Also sets the status to __TODO__ STATUS NUMBER and changed to True
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@param datetime datetime Ending date of redundance diskussion
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"""
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self._ending = self.__datetime( ending )
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def __datetime( self, timestamp ):
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"""
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Decides wether given timestamp is a parseable string or a datetime object and returns a datetime object in both cases
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@param datetime timestamp Datetime object
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str timestamp Parseable string with timestamp in format __timestamp_format
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@returns datetime Datetime object
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"""
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# Make sure locale is set to 'de_DE.UTF-8' to prevent problems with wrong month abreviations in strptime
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locale.setlocale(locale.LC_ALL, 'de_DE.UTF-8')
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if( isinstance( timestamp, datetime ) ):
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return timestamp
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else:
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result = datetime.strptime( timestamp, type( self ).__timestamp_format )
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return result
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def status( self ):
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"""
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Handles detection of correct status
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There are three possible stati:
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- 0 Discussion is running --> no ending, page is not an archive
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- 1 Discussion is over --> ending present, page is not an archive
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- 2 Discussion is archived --> ending (normaly) present, page is an archive
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- 3 and greater status was set by worker script, do not change it
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"""
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# Do not change stati set by worker script etc.
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if not self.__mysql.data['status'] > 2:
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# No ending, discussion is running:
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# Sometimes archived discussions also have no detectable ending
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if not self._ending and not self._red_page_archive:
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self._status = 0
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else:
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if not self._red_page_archive:
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self._status = 1
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else:
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self._status = 2
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else:
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self._status = self.__mysql.data[ 'status' ]
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def changed( self ):
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"""
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Checks wether anything has changed and maybe triggers db update
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"""
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# On archived red_fams do not delete possibly existing ending
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if not self._ending and self._status > 1 and self.__mysql.data[ 'ending' ]:
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self._ending = self.__mysql.data[ 'ending' ]
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# Since status change means something has changed, update database
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if( self._status != self.__mysql.data[ 'status' ] or self._beginning != self.__mysql.data[ 'beginning' ] or self._ending != self.__mysql.data[ 'ending' ] or self._red_page_id != self.__mysql.data[ 'red_page_id' ] or self._heading != self.__mysql.data[ 'heading' ]):
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self.__mysql.update_fam( self._red_page_id, self._heading, self._beginning, self._ending, self._status )
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@classmethod
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def is_sectionheading( cls, line ):
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"""
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Checks wether given line is a red_fam section heading
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@param str line String to check
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@returns bool Returns True if it is a section heading, otherwise false
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"""
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if cls.__sectionhead_pat.search( line ):
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return True
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else:
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return False
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@classmethod
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def is_beginning( cls, line ):
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"""
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Returns the first timestamp found in line, otherwise None
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@param str line String to search in
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@returns str Timestamp, otherwise None
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"""
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match = cls.__timestamp_pat.search( line )
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if match:
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# Since some timestamps are broken we need to reconstruct them by regex match groups
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result = match.group(1) + ", " + match.group(2) + ". " + match.group(3) + ". " + match.group(4)
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return result
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else:
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return None
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@classmethod
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def is_ending( cls, line ):
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"""
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Returns the timestamp of done notice ( if one ), otherwise None
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@param str line String to search in
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@returns str Timestamp, otherwise None
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"""
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if ( cls.__done_notice in line ) or ( cls.__done_notice2 in line ):
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match = cls.__timestamp_pat.search( line )
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if match:
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# Since some timestamps are broken we need to reconstruct them by regex match groups
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result = match.group(1) + ", " + match.group(2) + ". " + match.group(3) + ". " + match.group(4)
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return result
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return None
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@classmethod
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def is_ending2( cls, line ):
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"""
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Returns the last timestamp found in line, otherwise None
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@param str line String to search in
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@returns str Timestamp, otherwise None
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"""
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matches = cls.__timestamp_pat.findall( line )
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if matches:
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# Since some timestamps are broken we need to reconstruct them by regex match groups
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result = matches[-1][0] + ", " + matches[-1][1] + ". " + matches[-1][2] + ". " + matches[-1][3]
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return result
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else:
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return None
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class RedFamWorker( RedFam ):
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"""
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Handles working with redundance families stored in database where discussion is finished
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"""
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pass
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