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9c247f45bd
Anki used random 64bit IDs for cards, facts and fields. This had some nice properties: - merging data in syncs and imports was simply a matter of copying each way, as conflicts were astronomically unlikely - it made it easy to identify identical cards and prevent them from being reimported But there were some negatives too: - they're more expensive to store - javascript can't handle numbers > 2**53, which means AnkiMobile, iAnki and so on have to treat the ids as strings, which is slow - simply copying data in a sync or import can lead to corruption, as while a duplicate id indicates the data was originally the same, it may have diverged. A more intelligent approach is necessary. - sqlite was sorting the fields table based on the id, which meant the fields were spread across the table, and costly to fetch So instead, we'll move to incremental ids. In the case of model changes we'll declare that a schema change and force a full sync to avoid having to deal with conflicts, and in the case of cards and facts, we'll need to update the ids on one end to merge. Identical cards can be detected by checking to see if their id is the same and their creation time is the same. Creation time has been added back to cards and facts because it's necessary for sync conflict merging. That means facts.pos is not required. The graves table has been removed. It's not necessary for schema related changes, and dead cards/facts can be represented as a card with queue=-4 and created=0. Because we will record schema modification time and can ensure a full sync propagates to all endpoints, it means we can remove the dead cards/facts on schema change. Tags have been removed from the facts table and are represented as a field with ord=-1 and fmid=0. Combined with the locality improvement for fields, it means that fetching fields is not much more expensive than using the q/a cache. Because of the above, removing the q/a cache is a possibility now. The q and a columns on cards has been dropped. It will still be necessary to render the q/a on fact add/edit, since we need to record media references. It would be nice to avoid this in the future. Perhaps one way would be the ability to assign a type to fields, like "image", "audio", or "latex". LaTeX needs special consider anyway, as it was being rendered into the q/a cache.
1588 lines
53 KiB
Python
1588 lines
53 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright: Damien Elmes <anki@ichi2.net>
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# License: GNU GPL, version 3 or later; http://www.gnu.org/copyleft/gpl.html
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import tempfile, time, os, random, sys, re, stat, shutil
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import types, traceback, simplejson, datetime
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from operator import itemgetter
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from itertools import groupby
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from anki.lang import _, ngettext
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from anki.utils import parseTags, tidyHTML, ids2str, hexifyID, \
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canonifyTags, joinTags, addTags, deleteTags, checksum, fieldChecksum, \
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stripHTML, intTime
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from anki.fonts import toPlatformFont
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from anki.hooks import runHook, hookEmpty, runFilter
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from anki.sched import Scheduler
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from anki.media import MediaRegistry
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from anki.consts import *
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import anki.latex # sets up hook
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import anki.cards, anki.facts, anki.models, anki.template
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# Settings related to queue building. These may be loaded without the rest of
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# the config to check due counts faster on mobile clients.
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defaultQconf = {
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'revGroups': [],
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'newGroups': [],
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'newPerDay': 20,
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'newToday': [0, 0], # currentDay, count
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'newTodayOrder': NEW_TODAY_ORD,
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'newCardOrder': 1,
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'newCardSpacing': NEW_CARDS_DISTRIBUTE,
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'revCardOrder': REV_CARDS_RANDOM,
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}
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# scheduling and other options
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defaultConf = {
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'collapseTime': 600,
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'sessionRepLimit': 0,
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'sessionTimeLimit': 600,
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'currentModelId': None,
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'currentGroupId': 1,
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'nextFactPos': 1,
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'mediaURL': "",
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'latexPre': """\
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\\documentclass[12pt]{article}
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\\special{papersize=3in,5in}
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\\usepackage[utf8]{inputenc}
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\\usepackage{amssymb,amsmath}
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\\pagestyle{empty}
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\\setlength{\\parindent}{0in}
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\\begin{document}
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""",
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'latexPost': "\\end{document}",
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}
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# this is initialized by storage.Deck
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class _Deck(object):
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# fixme: make configurable?
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factorFour = 1.3
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def __init__(self, db):
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self.db = db
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self.path = db._path
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self.load()
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if self.utcOffset == -2:
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# shared deck; reset timezone and creation date
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self.utcOffset = time.timezone + 60*60*4
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self.crt = intTime()
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self.undoEnabled = False
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self.sessionStartReps = 0
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self.sessionStartTime = 0
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self.lastSessionStart = 0
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# counter for reps since deck open
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self.reps = 0
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self.sched = Scheduler(self)
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self.media = MediaRegistry(self)
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# DB-related
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##########################################################################
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def load(self):
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(self.crt,
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self.mod,
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self.schema,
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self.syncName,
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self.lastSync,
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self.utcOffset,
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self.qconf,
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self.conf,
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self.data) = self.db.first("""
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select crt, mod, schema, syncName, lastSync,
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utcOffset, qconf, conf, data from deck""")
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self.qconf = simplejson.loads(self.qconf)
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self.conf = simplejson.loads(self.conf)
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self.data = simplejson.loads(self.data)
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def flush(self):
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"Flush state to DB, updating mod time."
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self.mod = intTime()
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self.db.execute(
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"""update deck set
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mod=?, schema=?, syncName=?, lastSync=?, utcOffset=?,
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qconf=?, conf=?, data=?""",
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self.mod, self.schema, self.syncName, self.lastSync,
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self.utcOffset, simplejson.dumps(self.qconf),
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simplejson.dumps(self.conf), simplejson.dumps(self.data))
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def save(self):
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"Flush, then commit DB."
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self.flush()
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self.db.commit()
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def close(self, save=True):
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"Disconnect from DB."
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if self.db:
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if save:
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self.save()
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else:
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self.rollback()
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self.db.close()
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self.db = None
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runHook("deckClosed", self)
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def reopen(self):
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"Reconnect to DB (after changing threads, etc). Doesn't reload."
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import anki.db
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if not self.db:
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self.db = anki.db.DB(self.path)
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def rollback(self):
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self.db.rollback()
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def modSchema(self):
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if not self.schemaDirty():
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# next sync will be full
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self.emptyTrash()
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self.schema = intTime()
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def schemaDirty(self):
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"True if schema changed since last sync, or syncing off."
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return self.schema > self.lastSync
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# unsorted
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##########################################################################
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def reset(self):
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self.sched.reset()
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# recache css
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self.rebuildCSS()
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def getCard(self, id):
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return anki.cards.Card(self, id)
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def getFact(self, id):
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return anki.facts.Fact(self, id=id)
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def getTemplate(self, id):
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return anki.models.Template(self, self.deck.db.first(
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"select * from templates where id = ?", id))
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# if card:
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# return card
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# if sched.name == "main":
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# self.stopSession()
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# else:
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# # in a custom scheduler; return to normal
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# print "fixme: this should be done in gui code"
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# self.sched.cleanup()
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# self.sched = AnkiScheduler(self)
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# return self.getCard()
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def resetCards(self, ids=None):
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"Reset progress on cards in IDS."
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print "position in resetCards()"
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sql = """
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update cards set mod=:now, position=0, type=2, queue=2, lastInterval=0,
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interval=0, due=created, factor=2.5, reps=0, successive=0, lapses=0, flags=0"""
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sql2 = "delete from revlog"
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if ids is None:
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lim = ""
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else:
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sids = ids2str(ids)
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sql += " where id in "+sids
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sql2 += " where cardId in "+sids
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self.db.execute(sql, now=time.time())
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self.db.execute(sql2)
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if self.qconf['newCardOrder'] == NEW_CARDS_RANDOM:
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# we need to re-randomize now
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self.randomizeNewCards(ids)
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def randomizeNewCards(self, cardIds=None):
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"Randomize 'due' on all new cards."
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now = time.time()
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query = "select distinct fid from cards where reps = 0"
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if cardIds:
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query += " and id in %s" % ids2str(cardIds)
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fids = self.db.list(query)
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data = [{'fid': fid,
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'rand': random.uniform(0, now),
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'now': now} for fid in fids]
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self.db.executemany("""
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update cards
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set due = :rand + ord,
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mod = :now
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where fid = :fid
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and type = 2""", data)
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def orderNewCards(self):
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"Set 'due' to card creation time."
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self.db.execute("""
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update cards set
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due = created,
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mod = :now
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where type = 2""", now=time.time())
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def rescheduleCards(self, ids, min, max):
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"Reset cards and schedule with new interval in days (min, max)."
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self.resetCards(ids)
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vals = []
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for id in ids:
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r = random.uniform(min*86400, max*86400)
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vals.append({
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'id': id,
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'due': r + time.time(),
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'int': r / 86400.0,
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't': time.time(),
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})
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self.db.executemany("""
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update cards set
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interval = :int,
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due = :due,
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reps = 1,
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successive = 1,
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yesCount = 1,
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firstAnswered = :t,
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queue = 1,
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type = 1,
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where id = :id""", vals)
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# Times
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##########################################################################
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def nextDueMsg(self):
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next = self.earliestTime()
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if next:
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# all new cards except suspended
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newCount = self.newCardsDueBy(self.dayCutoff + 86400)
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newCardsTomorrow = min(newCount, self.newCardsPerDay)
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cards = self.cardsDueBy(self.dayCutoff + 86400)
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msg = _('''\
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<style>b { color: #00f; }</style>
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At this time tomorrow:<br>
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%(wait)s<br>
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%(new)s''') % {
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'new': ngettext("There will be <b>%d new</b> card.",
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"There will be <b>%d new</b> cards.",
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newCardsTomorrow) % newCardsTomorrow,
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'wait': ngettext("There will be <b>%s review</b>.",
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"There will be <b>%s reviews</b>.", cards) % cards,
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}
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if next > (self.dayCutoff+86400) and not newCardsTomorrow:
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msg = (_("The next review is in <b>%s</b>.") %
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self.earliestTimeStr())
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else:
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msg = _("No cards are due.")
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return msg
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def earliestTime(self):
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"""Return the time of the earliest card.
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This may be in the past if the deck is not finished.
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If the deck has no (enabled) cards, return None.
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Ignore new cards."""
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earliestRev = self.db.scalar(self.cardLimit("revActive", "revInactive", """
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select due from cards c where queue = 1
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order by due
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limit 1"""))
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earliestFail = self.db.scalar(self.cardLimit("revActive", "revInactive", """
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select due+%d from cards c where queue = 0
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order by due
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limit 1""" % self.delay0))
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if earliestRev and earliestFail:
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return min(earliestRev, earliestFail)
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elif earliestRev:
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return earliestRev
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else:
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return earliestFail
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def earliestTimeStr(self, next=None):
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"""Return the relative time to the earliest card as a string."""
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if next == None:
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next = self.earliestTime()
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if not next:
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return _("unknown")
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diff = next - time.time()
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return anki.utils.fmtTimeSpan(diff)
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def cardsDueBy(self, time):
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"Number of cards due at TIME. Ignore new cards"
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return self.db.scalar(
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self.cardLimit(
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"revActive", "revInactive",
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"select count(*) from cards c where queue between 0 and 1 "
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"and due < :lim"), lim=time)
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def newCardsDueBy(self, time):
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"Number of new cards due at TIME."
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return self.db.scalar(
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self.cardLimit(
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"newActive", "newInactive",
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"select count(*) from cards c where queue = 2 "
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"and due < :lim"), lim=time)
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def deckFinishedMsg(self):
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spaceSusp = ""
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c= self.spacedCardCount()
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if c:
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spaceSusp += ngettext(
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'There is <b>%d delayed</b> card.',
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'There are <b>%d delayed</b> cards.', c) % c
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c2 = self.hiddenCards()
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if c2:
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if spaceSusp:
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spaceSusp += "<br>"
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spaceSusp += _(
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"Some cards are inactive or suspended.")
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if spaceSusp:
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spaceSusp = "<br><br>" + spaceSusp
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return _('''\
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<div style="white-space: normal;">
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<h1>Congratulations!</h1>You have finished for now.<br><br>
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%(next)s
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%(spaceSusp)s
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</div>''') % {
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"next": self.nextDueMsg(),
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"spaceSusp": spaceSusp,
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}
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# Suspending
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##########################################################################
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def suspendCards(self, ids):
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"Suspend cards."
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self.startProgress()
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self.db.execute("""
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update cards
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set queue = -1, mod = :t
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where id in %s""" % ids2str(ids), t=time.time())
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self.finishProgress()
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def unsuspendCards(self, ids):
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"Unsuspend cards."
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self.startProgress()
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self.db.execute("""
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update cards set queue = type, mod=:t
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where queue = -1 and id in %s""" %
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ids2str(ids), t=time.time())
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self.finishProgress()
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def buryFact(self, fact):
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"Bury all cards for fact until next session."
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for card in fact.cards:
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if card.queue in (0,1,2):
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card.queue = -2
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# Counts
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##########################################################################
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def hiddenCards(self):
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"Assumes queue finished. True if some due cards have not been shown."
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return self.db.scalar("""
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select 1 from cards where due < :now
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and queue between 0 and 1 limit 1""", now=self.dayCutoff)
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def spacedCardCount(self):
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"Number of spaced cards."
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print "spacedCardCount"
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return 0
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return self.db.scalar("""
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select count(cards.id) from cards where
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due > :now and due < :now""", now=time.time())
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def isEmpty(self):
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return not self.cardCount
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def matureCardCount(self):
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return self.db.scalar(
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"select count(id) from cards where interval >= :t ",
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t=MATURE_THRESHOLD)
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def youngCardCount(self):
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return self.db.scalar(
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"select count(id) from cards where interval < :t "
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"and reps != 0", t=MATURE_THRESHOLD)
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def newCountAll(self):
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"All new cards, including spaced."
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return self.db.scalar(
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"select count(id) from cards where type = 2")
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def seenCardCount(self):
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return self.db.scalar(
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"select count(id) from cards where type between 0 and 1")
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# Card predicates
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##########################################################################
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def cardState(self, card):
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if self.cardIsNew(card):
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return "new"
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elif card.interval > MATURE_THRESHOLD:
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return "mature"
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return "young"
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def cardIsNew(self, card):
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"True if a card has never been seen before."
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return card.reps == 0
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def cardIsYoung(self, card):
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"True if card is not new and not mature."
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return (not self.cardIsNew(card) and
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not self.cardIsMature(card))
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def cardIsMature(self, card):
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return card.interval >= MATURE_THRESHOLD
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# Stats
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##########################################################################
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def getETA(self, stats):
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# rev + new cards first, account for failures
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import traceback; traceback.print_stack()
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count = stats['rev'] + stats['new']
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count *= 1 + stats['gYoungNo%'] / 100.0
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left = count * stats['dAverageTime']
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# failed - higher time per card for higher amount of cards
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failedBaseMulti = 1.5
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failedMod = 0.07
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failedBaseCount = 20
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factor = (failedBaseMulti +
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(failedMod * (stats['failed'] - failedBaseCount)))
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left += stats['failed'] * stats['dAverageTime'] * factor
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return left
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# Facts
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##########################################################################
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def factCount(self):
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return self.db.scalar("select count() from facts")
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def newFact(self):
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"Return a new fact with the current model."
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return anki.facts.Fact(self, self.currentModel())
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def addFact(self, fact):
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"Add a fact to the deck. Return number of new cards."
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# check we have card models available
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cms = self.findTemplates(fact)
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if not cms:
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return None
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# set pos
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fact.pos = self.conf['nextFactPos']
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self.conf['nextFactPos'] += 1
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ncards = 0
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isRandom = self.qconf['newCardOrder'] == NEW_CARDS_RANDOM
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if isRandom:
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due = random.randrange(0, 10000)
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# flush the fact so we get its id
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fact.flush(cache=False)
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for template in cms:
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print "fixme:specify group on fact add"
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group = self.groupForTemplate(template)
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card = anki.cards.Card(self)
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card.fid = fact.id
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card.tid = template.id
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card.ord = template.ord
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card.gid = 1 #group.id
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if isRandom:
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card.due = due
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else:
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card.due = fact.pos
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card.flush()
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ncards += 1
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# save fact last, which will update caches too
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fact.flush()
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self.registerTags(fact.tags)
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return ncards
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def groupForTemplate(self, template):
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return 1
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id = self.conf['currentGroupId']
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return self.db.query(anki.groups.GroupConf).get(id).load()
|
|
|
|
def findTemplates(self, fact, checkActive=True):
|
|
"Return active, non-empty templates."
|
|
ok = []
|
|
for template in fact.model.templates:
|
|
if template.active or not checkActive:
|
|
# [cid, fid, qfmt, afmt, tags, model, template, group]
|
|
meta = [None, template.qfmt, template.afmt,
|
|
"", "", "", ""]
|
|
fields = fact.fieldsWithIds()
|
|
now = self.formatQA(None, fields, meta, False)
|
|
for k in fields.keys():
|
|
fields[k] = (fields[k][0], "")
|
|
empty = self.formatQA(None, fields, meta, False)
|
|
if now['q'] == empty['q']:
|
|
continue
|
|
if not template.conf['allowEmptyAns']:
|
|
if now['a'] == empty['a']:
|
|
continue
|
|
ok.append(template)
|
|
return ok
|
|
|
|
def addCards(self, fact, tids):
|
|
ids = []
|
|
for template in self.findTemplates(fact, False):
|
|
if template.id not in tids:
|
|
continue
|
|
if self.db.scalar("""
|
|
select count(id) from cards
|
|
where fid = :fid and tid = :cmid""",
|
|
fid=fact.id, cmid=template.id) == 0:
|
|
# enough for 10 card models assuming 0.00001 timer precision
|
|
card = anki.cards.Card(
|
|
fact, template,
|
|
fact.created+0.0001*template.ord)
|
|
raise Exception("incorrect; not checking selective study")
|
|
self.newAvail += 1
|
|
ids.append(card.id)
|
|
|
|
if ids:
|
|
fact.setMod(textChanged=True, deck=self)
|
|
self.setMod()
|
|
return ids
|
|
|
|
def factIsInvalid(self, fact):
|
|
"True if existing fact is invalid. Returns the error."
|
|
try:
|
|
fact.assertValid()
|
|
fact.assertUnique(self.db)
|
|
except FactInvalidError, e:
|
|
return e
|
|
|
|
def factUseCount(self, fid):
|
|
"Return number of cards referencing a given fact id."
|
|
return self.db.scalar("select count(id) from cards where fid = :id",
|
|
id=fid)
|
|
|
|
def _deleteFacts(self, ids):
|
|
"Bulk delete facts by ID. Don't call this directly."
|
|
if not ids:
|
|
return
|
|
strids = ids2str(ids)
|
|
self.db.execute("delete from facts where id in %s" % strids)
|
|
self.db.execute("delete from fdata where fid in %s" % strids)
|
|
|
|
def _deleteDanglingFacts(self):
|
|
"Delete any facts without cards. Don't call this directly."
|
|
ids = self.db.list("""
|
|
select id from facts where id not in (select distinct fid from cards)""")
|
|
self._deleteFacts(ids)
|
|
return ids
|
|
|
|
def previewFact(self, oldFact, cms=None):
|
|
"Duplicate fact and generate cards for preview. Don't add to deck."
|
|
# check we have card models available
|
|
if cms is None:
|
|
cms = self.findTemplates(oldFact, checkActive=True)
|
|
if not cms:
|
|
return []
|
|
fact = self.cloneFact(oldFact)
|
|
# proceed
|
|
cards = []
|
|
for template in cms:
|
|
card = anki.cards.Card(fact, template)
|
|
cards.append(card)
|
|
fact.setMod(textChanged=True, deck=self, media=False)
|
|
return cards
|
|
|
|
def cloneFact(self, oldFact):
|
|
"Copy fact into new session."
|
|
model = self.db.query(Model).get(oldFact.model.id)
|
|
fact = self.newFact(model)
|
|
for field in fact.fdata:
|
|
fact[field.name] = oldFact[field.name]
|
|
fact._tags = oldFact._tags
|
|
return fact
|
|
|
|
# Cards
|
|
##########################################################################
|
|
|
|
def cardCount(self):
|
|
all = self.db.scalar("select count() from cards")
|
|
trash = self.db.scalar("select count() from cards where queue = -4")
|
|
return all - trash
|
|
|
|
def deleteCard(self, id):
|
|
"Delete a card given its id. Delete any unused facts."
|
|
self.deleteCards([id])
|
|
|
|
def deleteCards(self, ids):
|
|
"Bulk delete cards by ID."
|
|
if not ids:
|
|
return
|
|
sids = ids2str(ids)
|
|
self.startProgress()
|
|
if self.schemaDirty():
|
|
# immediate delete?
|
|
self.db.execute("delete from cards where id in %s" % sids)
|
|
# remove any dangling facts
|
|
self._deleteDanglingFacts()
|
|
else:
|
|
# trash
|
|
sfids = ids2str(
|
|
self.db.list("select fid from cards where id in "+sids))
|
|
self.db.execute("delete from revlog where cid in "+sids)
|
|
self.db.execute("update cards set crt = 0 where id in "+sids)
|
|
self.db.execute("update facts set crt = 0 where id in "+sfids)
|
|
self.db.execute("delete from fdata where fid in "+sfids)
|
|
self.finishProgress()
|
|
|
|
def emptyTrash(self):
|
|
self.db.executescript("""
|
|
delete from facts where id in (select fid from cards where queue = -4);
|
|
delete from fdata where fid in (select fid from cards where queue = -4);
|
|
delete from revlog where cid in (select id from cards where queue = -4);
|
|
delete from cards where queue = -4;""")
|
|
|
|
# Models
|
|
##########################################################################
|
|
|
|
def currentModel(self):
|
|
return self.getModel(self.conf['currentModelId'])
|
|
|
|
def allModels(self):
|
|
return [self.getModel(id) for id in self.db.list(
|
|
"select id from models")]
|
|
|
|
def getModel(self, mid):
|
|
return anki.models.Model(self, mid)
|
|
|
|
def addModel(self, model):
|
|
model.flush()
|
|
self.conf['currentModelId'] = model.id
|
|
|
|
def deleteModel(self, mid):
|
|
"Delete MODEL, and all its cards/facts."
|
|
# do a direct delete
|
|
self.modSchema()
|
|
# delete facts/cards
|
|
self.deleteCards(self.db.list("""
|
|
select id from cards where fid in (select id from facts where mid = ?)""",
|
|
mid))
|
|
# then the model
|
|
self.db.execute("delete from models where id = ?", mid)
|
|
self.db.execute("delete from templates where mid = ?", mid)
|
|
self.db.execute("delete from fields where mid = ?", mid)
|
|
# GUI should ensure last model is not deleted
|
|
if self.conf['currentModelId'] == mid:
|
|
self.conf['currentModelId'] = self.db.scalar(
|
|
"select id from models limit 1")
|
|
|
|
def modelUseCount(self, model):
|
|
"Return number of facts using model."
|
|
return self.db.scalar("select count() from facts "
|
|
"where facts.mid = :id",
|
|
id=model.id)
|
|
|
|
def rebuildCSS(self):
|
|
print "fix rebuildCSS()"
|
|
return
|
|
# css for all fields
|
|
def _genCSS(prefix, row):
|
|
(id, fam, siz, col, align, rtl, pre) = row
|
|
t = ""
|
|
if fam: t += 'font-family:"%s";' % toPlatformFont(fam)
|
|
if siz: t += 'font-size:%dpx;' % siz
|
|
if col: t += 'color:%s;' % col
|
|
if rtl == "rtl":
|
|
t += "direction:rtl;unicode-bidi:embed;"
|
|
if pre:
|
|
t += "white-space:pre-wrap;"
|
|
if align != -1:
|
|
if align == 0: align = "center"
|
|
elif align == 1: align = "left"
|
|
else: align = "right"
|
|
t += 'text-align:%s;' % align
|
|
if t:
|
|
t = "%s%s {%s}\n" % (prefix, hexifyID(id), t)
|
|
return t
|
|
css = "".join([_genCSS(".fm", row) for row in self.db.all("""
|
|
select id, quizFontFamily, quizFontSize, quizFontColour, -1,
|
|
features, editFontFamily from fields""")])
|
|
cardRows = self.db.all("""
|
|
select id, null, null, null, questionAlign, 0, 0 from templates""")
|
|
css += "".join([_genCSS("#cmq", row) for row in cardRows])
|
|
css += "".join([_genCSS("#cma", row) for row in cardRows])
|
|
css += "".join([".cmb%s {background:%s;}\n" %
|
|
(hexifyID(row[0]), row[1]) for row in self.db.all("""
|
|
select id, lastFontColour from templates""")])
|
|
self.css = css
|
|
self.data['cssCache'] = css
|
|
self.addHexCache()
|
|
return css
|
|
|
|
def addHexCache(self):
|
|
ids = self.db.list("""
|
|
select id from fields union
|
|
select id from templates union
|
|
select id from models""")
|
|
cache = {}
|
|
for id in ids:
|
|
cache[id] = hexifyID(id)
|
|
self.data['hexCache'] = cache
|
|
|
|
def changeModel(self, fids, newModel, fieldMap, cardMap):
|
|
self.modSchema()
|
|
sfids = ids2str(fids)
|
|
self.startProgress()
|
|
# field remapping
|
|
if fieldMap:
|
|
seen = {}
|
|
for (old, new) in fieldMap.items():
|
|
seen[new] = 1
|
|
if new:
|
|
# can rename
|
|
self.db.execute("""
|
|
update fdata set
|
|
fmid = :new,
|
|
ord = :ord
|
|
where fmid = :old
|
|
and fid in %s""" % sfids, new=new.id, ord=new.ord, old=old.id)
|
|
else:
|
|
# no longer used
|
|
self.db.execute("""
|
|
delete from fdata where fid in %s
|
|
and fmid = :id""" % sfids, id=old.id)
|
|
# new
|
|
for field in newModel.fields:
|
|
if field not in seen:
|
|
d = [{'fid': f,
|
|
'fmid': field.id,
|
|
'ord': field.ord}
|
|
for f in fids]
|
|
self.db.executemany('''
|
|
insert into fdata
|
|
(fid, fmid, ord, value)
|
|
values
|
|
(:fid, :fmid, :ord, "")''', d)
|
|
# fact modtime
|
|
self.db.execute("""
|
|
update facts set
|
|
mod = :t,
|
|
mid = :id
|
|
where id in %s""" % sfids, t=time.time(), id=newModel.id)
|
|
self.finishProgress()
|
|
# template remapping
|
|
self.startProgress(len(cardMap)+3)
|
|
toChange = []
|
|
for (old, new) in cardMap.items():
|
|
if not new:
|
|
# delete
|
|
self.db.execute("""
|
|
delete from cards
|
|
where tid = :cid and
|
|
fid in %s""" % sfids, cid=old.id)
|
|
elif old != new:
|
|
# gather ids so we can rename x->y and y->x
|
|
ids = self.db.list("""
|
|
select id from cards where
|
|
tid = :id and fid in %s""" % sfids, id=old.id)
|
|
toChange.append((new, ids))
|
|
for (new, ids) in toChange:
|
|
self.db.execute("""
|
|
update cards set
|
|
tid = :new,
|
|
ord = :ord
|
|
where id in %s""" % ids2str(ids), new=new.id, ord=new.ord)
|
|
self.updateCache(fids, type="fact")
|
|
cardIds = self.db.list(
|
|
"select id from cards where fid in %s" %
|
|
ids2str(fids))
|
|
self.finishProgress()
|
|
|
|
# Fields
|
|
##########################################################################
|
|
|
|
def allFields(self):
|
|
"Return a list of all possible fields across all models."
|
|
return self.db.list("select distinct name from fieldmodels")
|
|
|
|
def deleteFieldModel(self, model, field):
|
|
self.startProgress()
|
|
self.modSchema()
|
|
self.db.execute("delete from fdata where fmid = :id",
|
|
id=field.id)
|
|
self.db.execute("update facts set mod = :t where mid = :id",
|
|
id=model.id, t=time.time())
|
|
model.fields.remove(field)
|
|
# update q/a formats
|
|
for cm in model.templates:
|
|
types = ("%%(%s)s" % field.name,
|
|
"%%(text:%s)s" % field.name,
|
|
# new style
|
|
"<<%s>>" % field.name,
|
|
"<<text:%s>>" % field.name)
|
|
for t in types:
|
|
for fmt in ('qfmt', 'afmt'):
|
|
setattr(cm, fmt, getattr(cm, fmt).replace(t, ""))
|
|
self.updateCardsFromModel(model)
|
|
model.flush()
|
|
self.finishProgress()
|
|
|
|
def addFieldModel(self, model, field):
|
|
"Add FIELD to MODEL and update cards."
|
|
self.modSchema()
|
|
model.addFieldModel(field)
|
|
# flush field to disk
|
|
self.db.execute("""
|
|
insert into fdata (fid, fmid, ord, value)
|
|
select facts.id, :fmid, :ord, "" from facts
|
|
where facts.mid = :mid""", fmid=field.id, mid=model.id, ord=field.ord)
|
|
# ensure facts are marked updated
|
|
self.db.execute("""
|
|
update facts set mod = :t where mid = :mid"""
|
|
, t=time.time(), mid=model.id)
|
|
model.flush()
|
|
|
|
def renameFieldModel(self, model, field, newName):
|
|
"Change FIELD's name in MODEL and update FIELD in all facts."
|
|
for cm in model.templates:
|
|
types = ("%%(%s)s",
|
|
"%%(text:%s)s",
|
|
# new styles
|
|
"{{%s}}",
|
|
"{{text:%s}}",
|
|
"{{#%s}}",
|
|
"{{^%s}}",
|
|
"{{/%s}}")
|
|
for t in types:
|
|
for fmt in ('qfmt', 'afmt'):
|
|
setattr(cm, fmt, getattr(cm, fmt).replace(t%field.name,
|
|
t%newName))
|
|
field.name = newName
|
|
model.flush()
|
|
|
|
def fieldUseCount(self, field):
|
|
"Return the number of cards using field."
|
|
return self.db.scalar("""
|
|
select count(id) from fdata where
|
|
fmid = :id and val != ""
|
|
""", id=field.id)
|
|
|
|
def rebuildFieldOrds(self, mid, ids):
|
|
self.modSchema()
|
|
strids = ids2str(ids)
|
|
self.db.execute("""
|
|
update fdata
|
|
set ord = (select ord from fields where id = fmid)
|
|
where fdata.fmid in %s""" % strids)
|
|
# dirty associated facts
|
|
self.db.execute("""
|
|
update facts
|
|
set mod = strftime("%s", "now")
|
|
where mid = :id""", id=mid)
|
|
|
|
# Card models
|
|
##########################################################################
|
|
|
|
def templateUseCount(self, template):
|
|
"Return the number of cards using template."
|
|
return self.db.scalar("""
|
|
select count(id) from cards where
|
|
tid = :id""", id=template.id)
|
|
|
|
def addCardModel(self, model, template):
|
|
self.modSchema()
|
|
model.addCardModel(template)
|
|
|
|
def deleteCardModel(self, model, template):
|
|
"Delete all cards that use CARDMODEL from the deck."
|
|
self.modSchema()
|
|
cards = self.db.list("select id from cards where tid = :id",
|
|
id=template.id)
|
|
self.deleteCards(cards)
|
|
model.templates.remove(template)
|
|
model.flush()
|
|
|
|
def rebuildCardOrds(self, ids):
|
|
"Update all card models in IDS. Caller must update model modtime."
|
|
self.modSchema()
|
|
strids = ids2str(ids)
|
|
self.db.execute("""
|
|
update cards set
|
|
ord = (select ord from templates where id = tid),
|
|
mod = :now
|
|
where tid in %s""" % strids, now=time.time())
|
|
|
|
# Caches: q/a, facts.cache and fdata.csum
|
|
##########################################################################
|
|
|
|
def updateCache(self, ids, type="card"):
|
|
"Update cache after facts or models changed."
|
|
# gather metadata
|
|
if type == "card":
|
|
where = "and c.id in " + ids2str(ids)
|
|
elif type == "fact":
|
|
where = "and f.id in " + ids2str(ids)
|
|
elif type == "model":
|
|
where = "and m.id in " + ids2str(ids)
|
|
(cids, fids, meta) = self._cacheMeta(where)
|
|
if not cids:
|
|
return
|
|
# and fact info
|
|
facts = self._cacheFacts(fids)
|
|
# generate q/a
|
|
pend = [self.formatQA(cids[n], facts[fids[n]], meta[cids[n]])
|
|
for n in range(len(cids))]
|
|
for p in pend:
|
|
self.media.registerText(p['q'])
|
|
self.media.registerText(p['a'])
|
|
# fact value cache
|
|
self._updateFieldCache(facts)
|
|
# and checksum
|
|
self._updateFieldChecksums(facts)
|
|
|
|
def formatQA(self, cardId, fact, meta, filters=True):
|
|
"Returns hash of id, question, answer."
|
|
d = {'id': cardId}
|
|
fields = {}
|
|
tags = None
|
|
for (k, v) in fact.items():
|
|
if k == None:
|
|
tags = v[1]
|
|
continue
|
|
fields["text:"+k] = stripHTML(v[1])
|
|
if v[1]:
|
|
fields[k] = '<span class="fm%s">%s</span>' % (
|
|
hexifyID(v[0]), v[1])
|
|
else:
|
|
fields[k] = u""
|
|
fields['Tags'] = tags
|
|
fields['Model'] = meta[3]
|
|
fields['Template'] = meta[4]
|
|
fields['Group'] = meta[5]
|
|
# render q & a
|
|
for (type, format) in (("q", meta[1]), ("a", meta[2])):
|
|
if filters:
|
|
fields = runFilter("formatQA.pre", fields, meta, self)
|
|
html = anki.template.render(format, fields)
|
|
if filters:
|
|
d[type] = runFilter("formatQA.post", html, fields, meta, self)
|
|
d[type] = html
|
|
return d
|
|
|
|
def _cacheMeta(self, where=""):
|
|
"Return cids, fids, and cid -> data hash."
|
|
# data is [fid, qfmt, afmt, model, template, group]
|
|
meta = {}
|
|
cids = []
|
|
fids = []
|
|
for r in self.db.execute("""
|
|
select c.id, f.id, t.qfmt, t.afmt, m.name, t.name, g.name
|
|
from cards c, facts f, models m, templates t, groups g where
|
|
c.fid == f.id and f.mid == m.id and
|
|
c.tid = t.id and c.gid = g.id
|
|
%s""" % where):
|
|
meta[r[0]] = r[1:]
|
|
cids.append(r[0])
|
|
fids.append(r[1])
|
|
return (cids, fids, meta)
|
|
|
|
def _cacheFacts(self, ids):
|
|
"Return a hash of fid -> (name -> (id, val))."
|
|
facts = {}
|
|
for id, fields in groupby(self.db.all("""
|
|
select fdata.fid, fields.name, fields.id, fdata.val
|
|
from fdata left outer join fields on fdata.fmid = fields.id
|
|
where fdata.fid in %s order by fdata.fid""" % ids2str(ids)), itemgetter(0)):
|
|
facts[id] = dict([(f[1], f[2:]) for f in fields])
|
|
return facts
|
|
|
|
def _updateFieldCache(self, facts):
|
|
"Add stripped HTML cache for searching."
|
|
r = []
|
|
from anki.utils import stripHTMLMedia
|
|
[r.append((stripHTMLMedia(
|
|
" ".join([x[1] for x in map.values()])), id))
|
|
for (id, map) in facts.items()]
|
|
self.db.executemany(
|
|
"update facts set cache=? where id=?", r)
|
|
|
|
def _updateFieldChecksums(self, facts):
|
|
print "benchmark updatefieldchecksums"
|
|
confs = {}
|
|
r = []
|
|
for (fid, map) in facts.items():
|
|
for (fmid, val) in map.values():
|
|
if fmid and fmid not in confs:
|
|
confs[fmid] = simplejson.loads(self.db.scalar(
|
|
"select conf from fields where id = ?",
|
|
fmid))
|
|
# if unique checking has been turned off, don't bother to
|
|
# zero out old values
|
|
if confs[fmid]['unique']:
|
|
csum = fieldChecksum(val)
|
|
r.append((csum, fid, fmid))
|
|
self.db.executemany(
|
|
"update fdata set csum=? where fid=? and fmid=?", r)
|
|
|
|
# Tags
|
|
##########################################################################
|
|
|
|
def tagList(self):
|
|
return self.db.list("select name from tags order by name")
|
|
|
|
def cardsWithNoTags(self):
|
|
return self.db.list("""
|
|
select cards.id from cards, facts where
|
|
facts.tags = ""
|
|
and cards.fid = facts.id""")
|
|
|
|
def cardHasTag(self, card, tag):
|
|
tags = self.db.scalar("select tags from fact where id = :fid",
|
|
fid=card.fid)
|
|
return tag.lower() in parseTags(tags.lower())
|
|
|
|
def updateFactTags(self, fids=None):
|
|
"Add any missing tags to the tags list."
|
|
if fids:
|
|
lim = " where id in " + ids2str(fids)
|
|
else:
|
|
lim = ""
|
|
self.registerTags(set(parseTags(
|
|
" ".join(self.db.list("select distinct tags from facts"+lim)))))
|
|
|
|
def registerTags(self, tags):
|
|
r = []
|
|
for t in tags:
|
|
r.append({'t': t})
|
|
self.db.executemany("""
|
|
insert or ignore into tags (mod, name) values (%d, :t)""" % intTime(),
|
|
r)
|
|
|
|
def addTags(self, ids, tags, add=True):
|
|
"Add tags in bulk. TAGS is space-separated."
|
|
self.startProgress()
|
|
newTags = parseTags(tags)
|
|
# cache tag names
|
|
self.registerTags(newTags)
|
|
# find facts missing the tags
|
|
if add:
|
|
l = "val not "
|
|
fn = addTags
|
|
else:
|
|
l = "val "
|
|
fn = deleteTags
|
|
lim = " or ".join(
|
|
[l+"like :_%d" % c for c, t in enumerate(newTags)])
|
|
res = self.db.all(
|
|
"select fid, val from fdata where ord = -1 and " + lim,
|
|
**dict([("_%d" % x, '%% %s %%' % y) for x, y in enumerate(newTags)]))
|
|
# update tags
|
|
fids = []
|
|
def fix(row):
|
|
fids.append(row[0])
|
|
return {'id': row[0], 't': fn(tags, row[1])}
|
|
self.db.executemany("""
|
|
update fdata set val = :t
|
|
where fid = :id""", [fix(row) for row in res])
|
|
self.db.execute("update facts set mod = ? where id in " +
|
|
ids2str(fids), intTime())
|
|
# update q/a cache
|
|
self.updateCache(fids, type="fact")
|
|
self.finishProgress()
|
|
|
|
def deleteTags(self, ids, tags):
|
|
self.addTags(ids, tags, False)
|
|
|
|
# Finding cards
|
|
##########################################################################
|
|
|
|
def findCards(self, query):
|
|
import anki.find
|
|
return anki.find.findCards(self, query)
|
|
|
|
def findReplace(self, *args, **kwargs):
|
|
import anki.find
|
|
return anki.find.findReplace(self, *args, **kwargs)
|
|
|
|
def findDuplicates(self, fmids):
|
|
import anki.find
|
|
return anki.find.findDuplicates(self, fmids)
|
|
|
|
# Progress info
|
|
##########################################################################
|
|
|
|
def startProgress(self, max=0, min=0, title=None):
|
|
self.enableProgressHandler()
|
|
runHook("startProgress", max, min, title)
|
|
|
|
def updateProgress(self, label=None, value=None):
|
|
runHook("updateProgress", label, value)
|
|
|
|
def finishProgress(self):
|
|
runHook("updateProgress")
|
|
runHook("finishProgress")
|
|
self.disableProgressHandler()
|
|
|
|
def progressHandler(self):
|
|
if (time.time() - self.progressHandlerCalled) < 0.2:
|
|
return
|
|
self.progressHandlerCalled = time.time()
|
|
if self.progressHandlerEnabled:
|
|
runHook("dbProgress")
|
|
|
|
def setupProgressHandler(self):
|
|
self.progressHandlerCalled = 0
|
|
self.progressHandlerEnabled = False
|
|
try:
|
|
self.engine.raw_connection().set_progress_handler(
|
|
deck.progressHandler, 100)
|
|
except:
|
|
pass
|
|
|
|
def enableProgressHandler(self):
|
|
self.progressHandlerEnabled = True
|
|
|
|
def disableProgressHandler(self):
|
|
self.progressHandlerEnabled = False
|
|
|
|
# Notifications
|
|
##########################################################################
|
|
|
|
def notify(self, msg):
|
|
"Send a notice to all listeners, or display on stdout."
|
|
if hookEmpty("notify"):
|
|
pass
|
|
else:
|
|
runHook("notify", msg)
|
|
|
|
# File-related
|
|
##########################################################################
|
|
|
|
def name(self):
|
|
if not self.path:
|
|
return u"untitled"
|
|
n = os.path.splitext(os.path.basename(self.path))[0]
|
|
assert '/' not in n
|
|
assert '\\' not in n
|
|
return n
|
|
|
|
# Timeboxing
|
|
##########################################################################
|
|
|
|
def startTimebox(self):
|
|
self.lastSessionStart = self.sessionStartTime
|
|
self.sessionStartTime = time.time()
|
|
self.sessionStartReps = self.repsToday
|
|
|
|
def stopTimebox(self):
|
|
self.sessionStartTime = 0
|
|
|
|
def timeboxStarted(self):
|
|
return self.sessionStartTime
|
|
|
|
def timeboxReached(self):
|
|
if not self.sessionStartTime:
|
|
# not started
|
|
return False
|
|
if (self.sessionTimeLimit and time.time() >
|
|
(self.sessionStartTime + self.sessionTimeLimit)):
|
|
return True
|
|
if (self.sessionRepLimit and self.sessionRepLimit <=
|
|
self.repsToday - self.sessionStartReps):
|
|
return True
|
|
return False
|
|
|
|
# Failed card handling
|
|
##########################################################################
|
|
|
|
def setFailedCardPolicy(self, idx):
|
|
if idx == 5:
|
|
# custom
|
|
return
|
|
self.collapseTime = 0
|
|
self.failedCardMax = 0
|
|
if idx == 0:
|
|
d = 600
|
|
self.collapseTime = 1
|
|
self.failedCardMax = 20
|
|
elif idx == 1:
|
|
d = 0
|
|
elif idx == 2:
|
|
d = 600
|
|
elif idx == 3:
|
|
d = 28800
|
|
elif idx == 4:
|
|
d = 259200
|
|
self.delay0 = d
|
|
self.delay1 = 0
|
|
|
|
def getFailedCardPolicy(self):
|
|
if self.delay1:
|
|
return 5
|
|
d = self.delay0
|
|
if self.collapseTime == 1:
|
|
if d == 600 and self.failedCardMax == 20:
|
|
return 0
|
|
return 5
|
|
if d == 0 and self.failedCardMax == 0:
|
|
return 1
|
|
elif d == 600:
|
|
return 2
|
|
elif d == 28800:
|
|
return 3
|
|
elif d == 259200:
|
|
return 4
|
|
return 5
|
|
|
|
# Syncing
|
|
##########################################################################
|
|
|
|
def enableSyncing(self):
|
|
self.syncName = self.getSyncName()
|
|
|
|
def disableSyncing(self):
|
|
self.syncName = u""
|
|
|
|
def syncingEnabled(self):
|
|
return self.syncName
|
|
|
|
def genSyncName(self):
|
|
return unicode(checksum(self.path.encode("utf-8")))
|
|
|
|
def syncHashBad(self):
|
|
if self.syncName and self.syncName != self.genSyncName():
|
|
self.disableSyncing()
|
|
return True
|
|
|
|
# DB maintenance
|
|
##########################################################################
|
|
|
|
def fixIntegrity(self, quick=False):
|
|
"Fix possible problems and rebuild caches."
|
|
self.save()
|
|
self.resetUndo()
|
|
problems = []
|
|
recover = False
|
|
if quick:
|
|
num = 4
|
|
else:
|
|
num = 10
|
|
oldSize = os.stat(self.path)[stat.ST_SIZE]
|
|
self.startProgress(num)
|
|
self.updateProgress(_("Checking database..."))
|
|
if self.db.scalar("pragma integrity_check") != "ok":
|
|
self.finishProgress()
|
|
return _("Database file is damaged.\n"
|
|
"Please restore from automatic backup (see FAQ).")
|
|
# ensure correct views and indexes are available
|
|
self.updateProgress()
|
|
updateIndices(self)
|
|
# does the user have a model?
|
|
self.updateProgress()
|
|
if not self.db.scalar("select count(id) from models"):
|
|
self.addModel(BasicModel())
|
|
problems.append(_("Deck was missing a model"))
|
|
# is currentModel pointing to a valid model?
|
|
if not self.db.all("""
|
|
select decks.id from decks, models where
|
|
decks.currentModelId = models.id"""):
|
|
self.currentModelId = self.models[0].id
|
|
problems.append(_("The current model didn't exist"))
|
|
# fdata missing a field model
|
|
ids = self.db.list("""
|
|
select id from fdata where fmid not in (
|
|
select distinct id from fields)""")
|
|
if ids:
|
|
self.db.execute("delete from fdata where id in %s" %
|
|
ids2str(ids))
|
|
problems.append(ngettext("Deleted %d field with missing field model",
|
|
"Deleted %d fdata with missing field model", len(ids)) %
|
|
len(ids))
|
|
# facts missing a field?
|
|
ids = self.db.list("""
|
|
select distinct facts.id from facts, fields where
|
|
facts.mid = fields.mid and fields.id not in
|
|
(select fmid from fdata where fid = facts.id)""")
|
|
if ids:
|
|
self.deleteFacts(ids)
|
|
problems.append(ngettext("Deleted %d fact with missing fields",
|
|
"Deleted %d facts with missing fields", len(ids)) %
|
|
len(ids))
|
|
# cards missing a fact?
|
|
ids = self.db.list("""
|
|
select id from cards where fid not in (select id from facts)""")
|
|
if ids:
|
|
recover = True
|
|
self.recoverCards(ids)
|
|
problems.append(ngettext("Recovered %d card with missing fact",
|
|
"Recovered %d cards with missing fact", len(ids)) %
|
|
len(ids))
|
|
# cards missing a card model?
|
|
ids = self.db.list("""
|
|
select id from cards where tid not in
|
|
(select id from templates)""")
|
|
if ids:
|
|
recover = True
|
|
self.recoverCards(ids)
|
|
problems.append(ngettext("Recovered %d card with no card template",
|
|
"Recovered %d cards with no card template", len(ids)) %
|
|
len(ids))
|
|
# cards with a card model from the wrong model
|
|
ids = self.db.list("""
|
|
select id from cards where tid not in (select cm.id from
|
|
templates cm, facts f where cm.mid = f.mid and
|
|
f.id = cards.fid)""")
|
|
if ids:
|
|
recover = True
|
|
self.recoverCards(ids)
|
|
problems.append(ngettext("Recovered %d card with wrong card template",
|
|
"Recovered %d cards with wrong card template", len(ids)) %
|
|
len(ids))
|
|
# facts missing a card?
|
|
ids = self.deleteDanglingFacts()
|
|
if ids:
|
|
problems.append(ngettext("Deleted %d fact with no cards",
|
|
"Deleted %d facts with no cards", len(ids)) %
|
|
len(ids))
|
|
# dangling fields?
|
|
ids = self.db.list("""
|
|
select id from fdata where fid not in (select id from facts)""")
|
|
if ids:
|
|
self.db.execute(
|
|
"delete from fdata where id in %s" % ids2str(ids))
|
|
problems.append(ngettext("Deleted %d dangling field",
|
|
"Deleted %d dangling fields", len(ids)) %
|
|
len(ids))
|
|
if not quick:
|
|
self.updateProgress()
|
|
# these sometimes end up null on upgrade
|
|
self.db.execute("update models set source = 0 where source is null")
|
|
self.db.execute(
|
|
"update templates set allowEmptyAnswer = 1, typeAnswer = '' "
|
|
"where allowEmptyAnswer is null or typeAnswer is null")
|
|
# fix tags
|
|
self.updateProgress()
|
|
self.db.execute("delete from tags")
|
|
self.updateFactTags()
|
|
print "should ensure tags having leading/trailing space"
|
|
# make sure ords are correct
|
|
self.updateProgress()
|
|
self.db.execute("""
|
|
update fdata set ord = (select ord from fields
|
|
where id = fmid)""")
|
|
self.db.execute("""
|
|
update cards set ord = (select ord from templates
|
|
where cards.tid = templates.id)""")
|
|
# fix problems with stripping html
|
|
self.updateProgress()
|
|
fdata = self.db.all("select id, val from fdata")
|
|
newFdata = []
|
|
for (id, val) in fdata:
|
|
newFdata.append({'id': id, 'val': tidyHTML(val)})
|
|
self.db.executemany(
|
|
"update fdata set val=:val where id=:id",
|
|
newFdata)
|
|
# and field checksums
|
|
self.updateProgress()
|
|
self.updateAllFieldChecksums()
|
|
# regenerate question/answer cache
|
|
for m in self.models:
|
|
self.updateCardsFromModel(m, dirty=False)
|
|
# rebuild
|
|
self.updateProgress()
|
|
self.rebuildTypes()
|
|
# force a full sync
|
|
self.modSchema()
|
|
# and finally, optimize
|
|
self.updateProgress()
|
|
self.optimize()
|
|
newSize = os.stat(self.path)[stat.ST_SIZE]
|
|
save = (oldSize - newSize)/1024
|
|
txt = _("Database rebuilt and optimized.")
|
|
if save > 0:
|
|
txt += "\n" + _("Saved %dKB.") % save
|
|
problems.append(txt)
|
|
self.save()
|
|
self.finishProgress()
|
|
if problems:
|
|
if recover:
|
|
problems.append("\n" + _("""\
|
|
Cards with corrupt or missing facts have been placed into new facts. \
|
|
Your scheduling info and card content has been preserved, but the \
|
|
original layout of the facts has been lost."""))
|
|
return "\n".join(problems)
|
|
return "ok"
|
|
|
|
def optimize(self):
|
|
self.db.execute("vacuum")
|
|
self.db.execute("analyze")
|
|
|
|
# Undo/redo
|
|
##########################################################################
|
|
|
|
def initUndo(self):
|
|
# note this code ignores 'unique', as it's an sqlite reserved word
|
|
self.undoStack = []
|
|
self.redoStack = []
|
|
self.undoEnabled = True
|
|
self.db.execute(
|
|
"create temporary table undoLog (seq integer primary key not null, sql text)")
|
|
tables = self.db.list(
|
|
"select name from sqlite_master where type = 'table'")
|
|
for table in tables:
|
|
if table in ("undoLog", "sqlite_stat1"):
|
|
continue
|
|
columns = [r[1] for r in
|
|
self.db.all("pragma table_info(%s)" % table)]
|
|
# insert
|
|
self.db.execute("""
|
|
create temp trigger _undo_%(t)s_it
|
|
after insert on %(t)s begin
|
|
insert into undoLog values
|
|
(null, 'delete from %(t)s where rowid = ' || new.rowid); end""" % {'t': table})
|
|
# update
|
|
sql = """
|
|
create temp trigger _undo_%(t)s_ut
|
|
after update on %(t)s begin
|
|
insert into undoLog values (null, 'update %(t)s """ % {'t': table}
|
|
sep = "set "
|
|
for c in columns:
|
|
if c == "unique":
|
|
continue
|
|
sql += "%(s)s%(c)s=' || quote(old.%(c)s) || '" % {
|
|
's': sep, 'c': c}
|
|
sep = ","
|
|
sql += " where rowid = ' || old.rowid); end"
|
|
self.db.execute(sql)
|
|
# delete
|
|
sql = """
|
|
create temp trigger _undo_%(t)s_dt
|
|
before delete on %(t)s begin
|
|
insert into undoLog values (null, 'insert into %(t)s (rowid""" % {'t': table}
|
|
for c in columns:
|
|
sql += ",\"%s\"" % c
|
|
sql += ") values (' || old.rowid ||'"
|
|
for c in columns:
|
|
if c == "unique":
|
|
sql += ",1"
|
|
continue
|
|
sql += ",' || quote(old.%s) ||'" % c
|
|
sql += ")'); end"
|
|
self.db.execute(sql)
|
|
|
|
def undoName(self):
|
|
for n in reversed(self.undoStack):
|
|
if n:
|
|
return n[0]
|
|
|
|
def redoName(self):
|
|
return self.redoStack[-1][0]
|
|
|
|
def undoAvailable(self):
|
|
if not self.undoEnabled:
|
|
return
|
|
for r in reversed(self.undoStack):
|
|
if r:
|
|
return True
|
|
|
|
def redoAvailable(self):
|
|
return self.undoEnabled and self.redoStack
|
|
|
|
def resetUndo(self):
|
|
try:
|
|
self.db.execute("delete from undoLog")
|
|
except:
|
|
pass
|
|
self.undoStack = []
|
|
self.redoStack = []
|
|
|
|
def setUndoBarrier(self):
|
|
if not self.undoStack or self.undoStack[-1] is not None:
|
|
self.undoStack.append(None)
|
|
|
|
def setUndoStart(self, name, merge=False):
|
|
if not self.undoEnabled:
|
|
return
|
|
if merge and self.undoStack:
|
|
if self.undoStack[-1] and self.undoStack[-1][0] == name:
|
|
# merge with last entry?
|
|
return
|
|
start = self._latestUndoRow()
|
|
self.undoStack.append([name, start, None])
|
|
|
|
def setUndoEnd(self, name):
|
|
if not self.undoEnabled:
|
|
return
|
|
end = self._latestUndoRow()
|
|
while self.undoStack[-1] is None:
|
|
# strip off barrier
|
|
self.undoStack.pop()
|
|
self.undoStack[-1][2] = end
|
|
if self.undoStack[-1][1] == self.undoStack[-1][2]:
|
|
self.undoStack.pop()
|
|
else:
|
|
self.redoStack = []
|
|
runHook("undoEnd")
|
|
|
|
def _latestUndoRow(self):
|
|
return self.db.scalar("select max(rowid) from undoLog") or 0
|
|
|
|
def _undoredo(self, src, dst):
|
|
while 1:
|
|
u = src.pop()
|
|
if u:
|
|
break
|
|
(start, end) = (u[1], u[2])
|
|
if end is None:
|
|
end = self._latestUndoRow()
|
|
sql = self.db.list("""
|
|
select sql from undoLog where
|
|
seq > :s and seq <= :e order by seq desc""", s=start, e=end)
|
|
mod = len(sql) / 35
|
|
if mod:
|
|
self.startProgress(36)
|
|
self.updateProgress(_("Processing..."))
|
|
newstart = self._latestUndoRow()
|
|
for c, s in enumerate(sql):
|
|
if mod and not c % mod:
|
|
self.updateProgress()
|
|
self.engine.execute(s)
|
|
newend = self._latestUndoRow()
|
|
dst.append([u[0], newstart, newend])
|
|
if mod:
|
|
self.finishProgress()
|
|
|
|
def undo(self):
|
|
"Undo the last action(s)."
|
|
self._undoredo(self.undoStack, self.redoStack)
|
|
runHook("postUndoRedo")
|
|
|
|
def redo(self):
|
|
"Redo the last action(s)."
|
|
self._undoredo(self.redoStack, self.undoStack)
|
|
runHook("postUndoRedo")
|
|
|
|
# Dynamic indices
|
|
##########################################################################
|
|
|
|
def updateDynamicIndices(self):
|
|
# determine required columns
|
|
required = []
|
|
if self.qconf['newTodayOrder'] == NEW_TODAY_ORD:
|
|
required.append("ord")
|
|
if self.qconf['revCardOrder'] in (REV_CARDS_OLD_FIRST, REV_CARDS_NEW_FIRST):
|
|
required.append("interval")
|
|
cols = ["queue", "due", "gid"] + required
|
|
# update if changed
|
|
if self.db.scalar(
|
|
"select 1 from sqlite_master where name = 'ix_cards_multi'"):
|
|
rows = self.db.all("pragma index_info('ix_cards_multi')")
|
|
else:
|
|
rows = None
|
|
if not (rows and cols == [r[2] for r in rows]):
|
|
self.db.execute("drop index if exists ix_cards_multi")
|
|
self.db.execute("create index ix_cards_multi on cards (%s)" %
|
|
", ".join(cols))
|
|
self.db.execute("analyze")
|
|
|
|
# Shared decks
|
|
##########################################################################
|
|
|
|
# sourcesTable = Table(
|
|
# 'sources', metadata,
|
|
# Column('id', Integer, nullable=False, primary_key=True),
|
|
# Column('name', UnicodeText, nullable=False, default=""),
|
|
# Column('created', Integer, nullable=False, default=intTime),
|
|
# Column('lastSync', Integer, nullable=False, default=0),
|
|
# # -1 = never check, 0 = always check, 1+ = number of seconds passed.
|
|
# # not currently exposed in the GUI
|
|
# Column('syncPeriod', Integer, nullable=False, default=0))
|