implement cram

still to do:
- altering intervals at cram exit
- tidying up

anki/cram.py

@@ -2,9 +2,12 @@
 # Copyright: Damien Elmes <anki@ichi2.net>
 # License: GNU GPL, version 3 or later; http://www.gnu.org/copyleft/gpl.html
 
-from anki.utils import ids2str
+from anki.utils import ids2str, intTime
 from anki.sched import Scheduler
 
+# The order arg should be the opposite of what you want. So if you want
+# modified ascending, pass in 'mod desc'.
+
 class CramScheduler(Scheduler):
     name = "cram"
 
@@ -14,11 +17,80 @@ class CramScheduler(Scheduler):
         self.order = order
         self.reset()
 
+    def counts(self):
+        return (self.newCount, self.lrnCount, 0)
+
     def reset(self):
-        pass
+        self._resetConf()
+        self._resetLrn()
+        self._resetNew()
+        self._resetRev()
 
-    def getCard(self):
-        pass
+    def answerCard(self, card, ease):
+        if card.queue == 2:
+            card.queue = 1
+            card.edue = card.due
+        if card.queue == 1:
+            self._answerLrnCard(card, ease)
+        else:
+            raise Exception("Invalid queue")
+        card.mod = intTime()
+        card.flushSched()
+
+    def countIdx(self, card):
+        if card.queue == 2:
+            return 0
+        else:
+            return 1
+
+    # Fetching
+    ##########################################################################
+
+    def _resetNew(self):
+        self.newQueue = self.db.list("""
+select id from cards where queue = 2
+and gid in %s order by %s limit %d""" % (ids2str(self.gids),
+                                         self.order,
+                                         self.reportLimit))
+        self.newCount = len(self.newQueue)
+
+    def _resetRev(self):
+        self.revQueue = []
+        self.revCount = 0
+
+    def _timeForNewCard(self):
+        return True
+
+    def _getNewCard(self):
+        if self.newQueue:
+            id = self.newQueue.pop()
+            self.newCount -= 1
+            return id
+
+    # Answering
+    ##########################################################################
+
+    def _rescheduleAsRev(self, card, conf, early):
+        Scheduler._rescheduleAsRev(self, card, conf, early)
+        card.ivl = self._graduatingIvl(card, conf, early)
+        card.due = self.today + card.ivl
+        # temporarily suspend it
+        card.queue = -3
+
+    def _graduatingIvl(self, card, conf, early):
+        if conf['resched']:
+            print "fixme"
+            return card.ivl
+        else:
+            return card.ivl
+
+    def _lrnConf(self, card):
+        return self._cardConf(card)['cram']
+
+    # Next time reports
+    ##########################################################################
+
+    def nextIvl(self, card, ease):
+        "Return the next interval for CARD, in seconds."
+        return self._nextLrnIvl(card, ease)
 
-    def answerCard(self):
-        pass

anki/deck.py

@@ -655,7 +655,7 @@ select conf from gconf where id = (select gcid from groups where id = ?)""",
             self.sched.onClose()
         self.sched = self._stdSched
 
-    def cramGroups(self, gids, order="mod"):
+    def cramGroups(self, gids, order="mod desc"):
         self.stdSched()
         self.sched = anki.cram.CramScheduler(self, gids, order)
 

anki/groups.py

@@ -23,11 +23,15 @@ defaultConf = {
         # one of [suspend], [tagonly]
         'leechAction': ["suspend"],
     },
+    'cram': {
+        'delays': [0.5, 3, 10],
+        'resched': True,
+    },
     'rev': {
         'ease4': 1.3,
         'fuzz': 0.05,
         'minSpace': 1,
-    }
+    },
 }
 
 class GroupConfig(object):

anki/sched.py

@@ -57,7 +57,7 @@ class Scheduler(object):
         "Does not include fetched but unanswered."
         return (self.newCount, self.lrnCount, self.revCount)
 
-    def cardQueue(self, card):
+    def countIdx(self, card):
         return card.queue
 
     def onClose(self):

tests/test_sched.py

@@ -1,6 +1,6 @@
 # coding: utf-8
 
-import time
+import time, copy
 from tests.shared import assertException, getEmptyDeck
 from anki.stdmodels import BasicModel
 from anki.utils import stripHTML, intTime
@@ -152,7 +152,6 @@ def test_reviews():
     c.startTimer()
     c.flush()
     # save it for later use as well
-    import copy
     cardcopy = copy.copy(c)
     # failing it should put it in the learn queue with the default options
     ##################################################
@@ -270,7 +269,7 @@ def test_nextIvl():
     assert ni(c, 3) == 21600000
     # (* 100 2.5 1.3 86400)28080000.0
     assert ni(c, 4) == 28080000
-    print d.sched.nextIvlStr(c, 4) == "10.8 months"
+    assert d.sched.nextIvlStr(c, 4) == "10.8 months"
 
 def test_misc():
     d = getEmptyDeck()
@@ -308,9 +307,32 @@ def test_cram():
     f = d.newFact()
     f['Front'] = u"one"
     d.addFact(f)
-    f = d.newFact()
-    f['Front'] = u"two"
-    d.addFact(f)
-    d.cramGroups(1)
-
-
+    c = f.cards()[0]
+    c.ivl = 100
+    c.type = c.queue = 2
+    c.due = d.sched.today + 50
+    c.mod = 1
+    c.flush()
+    d.cramGroups([1])
+    assert d.sched.counts() == (1, 0, 0)
+    c = d.sched.getCard()
+    assert d.sched.counts() == (0, 0, 0)
+    # check that estimates work
+    assert d.sched.nextIvl(c, 1) == 30
+    assert d.sched.nextIvl(c, 2) == 180
+    print "fixme"
+    print d.sched.nextIvl(c, 3) == 86400*100
+    # answer it
+    d.sched.answerCard(c, 2)
+    delta = c.due - time.time()
+    assert delta > 175 and delta <= 180
+    # another two answers should reschedule it
+    assert c.queue == 1
+    d.sched.answerCard(c, 2)
+    d.sched.answerCard(c, 2)
+    assert c.queue == -3
+    print "fixme"
+    assert c.ivl == 100
+    # and if the queue is reset, it shouldn't appear in the new queue again
+    d.reset()
+    assert d.sched.counts() == (0, 0, 0)