Mercurial > libervia-backend
view sat_frontends/quick_frontend/quick_contact_management.py @ 2716:06160b529da6
core (memory/sqlite): changed history constraint
/!\ Database schema change /!\
History was using a unique constraint on `profile_id, timestamp, source, dest, source_res, dest_res`, which can cause trouble because several messages send quickly by the same person can have a common timestamp (specially with delayed messages where precision is second), resulting in message loss.
The new constraint use `profile_id, stanza_id, source, dest` where `stanza_id` is XEP-0359 stanza_id, so it's unique by definition, and no message should be lost anymore.
Because sqlite doesn't support altering table with a constraint change, we have to create new tables and copy old data to new one, which can be pretty long.
Sqlite update mechanism with "specifics" has been fixed when several updates are applied (e.g. moving from v5 to v7) and a specific is in the workflow.
author | Goffi <goffi@goffi.org> |
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date | Sun, 09 Dec 2018 14:07:26 +0100 |
parents | 56f94936df1e |
children | 003b8b4b56a7 |
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#!/usr/bin/env python2 # -*- coding: utf-8 -*- # helper class for making a SAT frontend # Copyright (C) 2009-2018 Jérôme Poisson (goffi@goffi.org) # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. from sat.core.i18n import _ from sat.core.log import getLogger log = getLogger(__name__) from sat_frontends.tools.jid import JID class QuickContactManagement(object): """This helper class manage the contacts and ease the use of nicknames and shortcuts""" ### FIXME: is SàT a better place for all this stuff ??? ### def __init__(self): self.__contactlist = {} def __contains__(self, entity): return entity.bare in self.__contactlist def clear(self): """Clear all the contact list""" self.__contactlist.clear() def add(self, entity): """Add contact to the list, update resources""" if not self.__contactlist.has_key(entity.bare): self.__contactlist[entity.bare] = {"resources": []} if not entity.resource: return if entity.resource in self.__contactlist[entity.bare]["resources"]: self.__contactlist[entity.bare]["resources"].remove(entity.resource) self.__contactlist[entity.bare]["resources"].append(entity.resource) def getContFromGroup(self, group): """Return all contacts which are in given group""" result = [] for contact in self.__contactlist: if self.__contactlist[contact].has_key("groups"): if group in self.__contactlist[contact]["groups"]: result.append(JID(contact)) return result def getAttr(self, entity, name): """Return a specific attribute of contact, or all attributes @param entity: jid of the contact @param name: name of the attribute @return: asked attribute""" if self.__contactlist.has_key(entity.bare): if name == "status": # FIXME: for the moment, we only use the first status if self.__contactlist[entity.bare]["statuses"]: return self.__contactlist[entity.bare]["statuses"].values()[0] if self.__contactlist[entity.bare].has_key(name): return self.__contactlist[entity.bare][name] else: log.debug(_("Trying to get attribute for an unknown contact")) return None def isConnected(self, entity): """Tell if the contact is online""" return self.__contactlist.has_key(entity.bare) def remove(self, entity): """remove resource. If no more resource is online or is no resource is specified, contact is deleted""" try: if entity.resource: self.__contactlist[entity.bare]["resources"].remove(entity.resource) if not entity.resource or not self.__contactlist[entity.bare]["resources"]: # no more resource available: the contact seems really disconnected del self.__contactlist[entity.bare] except KeyError: log.error(_("INTERNAL ERROR: Key log.error")) raise def update(self, entity, key, value): """Update attribute of contact @param entity: jid of the contact @param key: name of the attribute @param value: value of the attribute """ if self.__contactlist.has_key(entity.bare): self.__contactlist[entity.bare][key] = value else: log.debug(_("Trying to update an unknown contact: %s") % entity.bare) def get_full(self, entity): return entity.bare + "/" + self.__contactlist[entity.bare]["resources"][-1]