view sat_frontends/quick_frontend/quick_list_manager.py @ 2787:298408833ec2

memory (sqlite): optimizations indexes were missing on foreign keys for "message", "subject" and "thread" tables, seriously impacting performances. In addition to those indexes, two indexes have been added to speed ordering by timestamp on "history", and one on "files" table. history.rowid is not used anymore as there is an index on (profile_id, received_timestamp) which will speed up the query. Primary keys order has been changed to use automatic index in most common cases (filtering by profile_id then namespace).
author Goffi <goffi@goffi.org>
date Sat, 19 Jan 2019 22:49:32 +0100
parents 56f94936df1e
children 559a625a236b
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#!/usr/bin/env python2
# -*- coding: utf-8 -*-

# Libervia: a Salut à Toi frontend
# Copyright (C) 2013-2016 Adrien Cossa <souliane@mailoo.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/>.


class QuickTagList(object):
    """This class manages a sorted list of tagged items, and a complementary sorted list of suggested but non tagged items."""

    def __init__(self, items=None):
        """

        @param items (list): the suggested list of non tagged items
        """
        self.tagged = []
        self.original = (
            items[:] if items else []
        )  # XXX: copy the list! It will be modified
        self.untagged = (
            items[:] if items else []
        )  # XXX: copy the list! It will be modified
        self.untagged.sort()

    @property
    def items(self):
        """Return a sorted list of all items, tagged or untagged.
        
        @return list
        """
        res = list(set(self.tagged).union(self.untagged))
        res.sort()
        return res

    def tag(self, items):
        """Tag some items.

        @param items (list): items to be tagged
        """
        for item in items:
            if item not in self.tagged:
                self.tagged.append(item)
            if item in self.untagged:
                self.untagged.remove(item)
        self.tagged.sort()
        self.untagged.sort()

    def untag(self, items):
        """Untag some items.
  
        @param items (list): items to be untagged
        """
        for item in items:
            if item not in self.untagged and item in self.original:
                self.untagged.append(item)
            if item in self.tagged:
                self.tagged.remove(item)
        self.tagged.sort()
        self.untagged.sort()