Anki/pylib/anki/decks.py
Damien Elmes 616db33c0e refactor protobuf handling for split/import
In order to split backend.proto into a more manageable size, the protobuf
handling needed to be updated. This took more time than I would have
liked, as each language handles protobuf differently:

- The Python Protobuf code ignores "package" directives, and relies
solely on how the files are laid out on disk. While it would have been
nice to keep the generated files in a private subpackage, Protobuf gets
confused if the files are located in a location that does not match
their original .proto layout, so the old approach of storing them in
_backend/ will not work. They now clutter up pylib/anki instead. I'm
rather annoyed by that, but alternatives seem to be having to add an extra
level to the Protobuf path, making the other languages suffer, or trying
to hack around the issue by munging sys.modules.
- Protobufjs fails to expose packages if they don't start with a capital
letter, despite the fact that lowercase packages are the norm in most
languages :-( This required a patch to fix.
- Rust was the easiest, as Prost is relatively straightforward compared
to Google's tools.

The Protobuf files are now stored in /proto/anki, with a separate package
for each file. I've split backend.proto into a few files as a test, but
the majority of that work is still to come.

The Python Protobuf building is a bit of a hack at the moment, hard-coding
"proto" as the top level folder, but it seems to get the job done for now.

Also changed the workspace name, as there seems to be a number of Bazel
repos moving away from the more awkward reverse DNS naming style.
2021-07-10 19:17:05 +10:00

602 lines
20 KiB
Python

# Copyright: Ankitects Pty Ltd and contributors
# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
# pylint: enable=invalid-name
from __future__ import annotations
import copy
from typing import (
TYPE_CHECKING,
Any,
Dict,
Iterable,
List,
NewType,
Optional,
Sequence,
Tuple,
Union,
no_type_check,
)
if TYPE_CHECKING:
import anki
import anki.backend_pb2 as _pb
from anki._legacy import DeprecatedNamesMixin, deprecated, print_deprecation_warning
from anki.cards import CardId
from anki.collection import OpChanges, OpChangesWithCount, OpChangesWithId
from anki.consts import *
from anki.errors import NotFoundError
from anki.utils import from_json_bytes, ids2str, intTime, to_json_bytes
# public exports
DeckTreeNode = _pb.DeckTreeNode
DeckNameId = _pb.DeckNameId
FilteredDeckConfig = _pb.Deck.Filtered
DeckCollapseScope = _pb.SetDeckCollapsedRequest.Scope
DeckConfigsForUpdate = _pb.DeckConfigsForUpdate
UpdateDeckConfigs = _pb.UpdateDeckConfigsRequest
# type aliases until we can move away from dicts
DeckDict = Dict[str, Any]
DeckConfigDict = Dict[str, Any]
DeckId = NewType("DeckId", int)
DeckConfigId = NewType("DeckConfigId", int)
DEFAULT_DECK_ID = DeckId(1)
DEFAULT_DECK_CONF_ID = DeckConfigId(1)
class DecksDictProxy:
def __init__(self, col: anki.collection.Collection):
self._col = col.weakref()
def _warn(self) -> None:
print_deprecation_warning(
"add-on should use methods on col.decks, not col.decks.decks dict"
)
def __getitem__(self, item: Any) -> Any:
self._warn()
return self._col.decks.get(DeckId(int(item)))
def __setitem__(self, key: Any, val: Any) -> None:
self._warn()
self._col.decks.save(val)
def __len__(self) -> int:
self._warn()
return len(self._col.decks.all_names_and_ids())
def keys(self) -> Any:
self._warn()
return [str(nt.id) for nt in self._col.decks.all_names_and_ids()]
def values(self) -> Any:
self._warn()
return self._col.decks.all()
def items(self) -> Any:
self._warn()
return [(str(nt["id"]), nt) for nt in self._col.decks.all()]
def __contains__(self, item: Any) -> bool:
self._warn()
return self._col.decks.have(item)
class DeckManager(DeprecatedNamesMixin):
# Registry save/load
#############################################################
def __init__(self, col: anki.collection.Collection) -> None:
self.col = col.weakref()
self.decks = DecksDictProxy(col)
def save(self, deck_or_config: Union[DeckDict, DeckConfigDict] = None) -> None:
"Can be called with either a deck or a deck configuration."
if not deck_or_config:
print("col.decks.save() should be passed the changed deck")
return
# deck conf?
if "maxTaken" in deck_or_config:
self.update_config(deck_or_config)
return
else:
self.update(deck_or_config, preserve_usn=False)
# Deck save/load
#############################################################
def add_normal_deck_with_name(self, name: str) -> OpChangesWithId:
"If deck exists, return existing id."
if id := self.col.decks.id_for_name(name):
return OpChangesWithId(id=id)
else:
deck = self.col.decks.new_deck_legacy(filtered=False)
deck["name"] = name
return self.add_deck_legacy(deck)
def add_deck_legacy(self, deck: DeckDict) -> OpChangesWithId:
"Add a deck created with new_deck_legacy(). Must have id of 0."
assert deck["id"] == 0
return self.col._backend.add_deck_legacy(to_json_bytes(deck))
def id(
self,
name: str,
create: bool = True,
type: DeckConfigId = DeckConfigId(0),
) -> Optional[DeckId]:
"Add a deck with NAME. Reuse deck if already exists. Return id as int."
id = self.id_for_name(name)
if id:
return id
elif not create:
return None
deck = self.new_deck_legacy(bool(type))
deck["name"] = name
out = self.add_deck_legacy(deck)
return DeckId(out.id)
def remove(self, dids: Sequence[DeckId]) -> OpChangesWithCount:
return self.col._backend.remove_decks(dids)
def all_names_and_ids(
self, skip_empty_default: bool = False, include_filtered: bool = True
) -> Sequence[DeckNameId]:
"A sorted sequence of deck names and IDs."
return self.col._backend.get_deck_names(
skip_empty_default=skip_empty_default, include_filtered=include_filtered
)
def id_for_name(self, name: str) -> Optional[DeckId]:
try:
return DeckId(self.col._backend.get_deck_id_by_name(name))
except NotFoundError:
return None
def get_legacy(self, did: DeckId) -> Optional[DeckDict]:
try:
return from_json_bytes(self.col._backend.get_deck_legacy(did))
except NotFoundError:
return None
def have(self, id: DeckId) -> bool:
return not self.get_legacy(id)
def get_all_legacy(self) -> List[DeckDict]:
return list(from_json_bytes(self.col._backend.get_all_decks_legacy()).values())
def new_deck_legacy(self, filtered: bool) -> DeckDict:
deck = from_json_bytes(self.col._backend.new_deck_legacy(filtered))
if deck["dyn"]:
# Filtered decks are now created via a scheduler method, but old unit
# tests still use this method. Set the default values to what the tests
# expect: one empty search term, and ordering by oldest first.
del deck["terms"][1]
deck["terms"][0][0] = ""
deck["terms"][0][2] = 0
return deck
def deck_tree(self) -> DeckTreeNode:
return self.col._backend.deck_tree(top_deck_id=0, now=0)
@classmethod
def find_deck_in_tree(
cls, node: DeckTreeNode, deck_id: DeckId
) -> Optional[DeckTreeNode]:
if node.deck_id == deck_id:
return node
for child in node.children:
match = cls.find_deck_in_tree(child, deck_id)
if match:
return match
return None
def all(self) -> List[DeckDict]:
"All decks. Expensive; prefer all_names_and_ids()"
return self.get_all_legacy()
def set_collapsed(
self, deck_id: DeckId, collapsed: bool, scope: DeckCollapseScope.V
) -> OpChanges:
return self.col._backend.set_deck_collapsed(
deck_id=deck_id, collapsed=collapsed, scope=scope
)
def collapse(self, did: DeckId) -> None:
deck = self.get(did)
deck["collapsed"] = not deck["collapsed"]
self.save(deck)
def collapse_browser(self, did: DeckId) -> None:
deck = self.get(did)
collapsed = deck.get("browserCollapsed", False)
deck["browserCollapsed"] = not collapsed
self.save(deck)
def count(self) -> int:
return len(self.all_names_and_ids())
def card_count(
self, dids: Union[DeckId, Iterable[DeckId]], include_subdecks: bool
) -> Any:
if isinstance(dids, int):
dids = {dids}
else:
dids = set(dids)
if include_subdecks:
dids.update([child[1] for did in dids for child in self.children(did)])
count = self.col.db.scalar(
"select count() from cards where did in {0} or "
"odid in {0}".format(ids2str(dids))
)
return count
def get(self, did: Union[DeckId, str], default: bool = True) -> Optional[DeckDict]:
if not did:
if default:
return self.get_legacy(DEFAULT_DECK_ID)
else:
return None
id = DeckId(int(did))
deck = self.get_legacy(id)
if deck:
return deck
elif default:
return self.get_legacy(DEFAULT_DECK_ID)
else:
return None
def by_name(self, name: str) -> Optional[DeckDict]:
"""Get deck with NAME, ignoring case."""
id = self.id_for_name(name)
if id:
return self.get_legacy(id)
return None
def update(self, deck: DeckDict, preserve_usn: bool = True) -> None:
"Add or update an existing deck. Used for syncing and merging."
deck["id"] = self.col._backend.add_or_update_deck_legacy(
deck=to_json_bytes(deck), preserve_usn_and_mtime=preserve_usn
)
def update_dict(self, deck: DeckDict) -> OpChanges:
return self.col._backend.update_deck_legacy(json=to_json_bytes(deck))
def rename(self, deck: Union[DeckDict, DeckId], new_name: str) -> OpChanges:
"Rename deck prefix to NAME if not exists. Updates children."
if isinstance(deck, int):
deck_id = deck
else:
deck_id = deck["id"]
return self.col._backend.rename_deck(deck_id=deck_id, new_name=new_name)
# Drag/drop
#############################################################
def reparent(
self, deck_ids: Sequence[DeckId], new_parent: DeckId
) -> OpChangesWithCount:
"""Rename one or more source decks that were dropped on `new_parent`.
If new_parent is 0, decks will be placed at the top level."""
return self.col._backend.reparent_decks(
deck_ids=deck_ids, new_parent=new_parent
)
# Deck configurations
#############################################################
def get_deck_configs_for_update(self, deck_id: DeckId) -> DeckConfigsForUpdate:
return self.col._backend.get_deck_configs_for_update(deck_id)
def update_deck_configs(self, input: UpdateDeckConfigs) -> OpChanges:
return self.col._backend.update_deck_configs(input=input)
def all_config(self) -> List[DeckConfigDict]:
"A list of all deck config."
return list(from_json_bytes(self.col._backend.all_deck_config_legacy()))
def config_dict_for_deck_id(self, did: DeckId) -> DeckConfigDict:
deck = self.get(did, default=False)
assert deck
if "conf" in deck:
dcid = DeckConfigId(int(deck["conf"])) # may be a string
conf = self.get_config(dcid)
if not conf:
# fall back on default
conf = self.get_config(DEFAULT_DECK_CONF_ID)
conf["dyn"] = False
return conf
# dynamic decks have embedded conf
return deck
def get_config(self, conf_id: DeckConfigId) -> Optional[DeckConfigDict]:
try:
return from_json_bytes(self.col._backend.get_deck_config_legacy(conf_id))
except NotFoundError:
return None
def update_config(self, conf: DeckConfigDict, preserve_usn: bool = False) -> None:
"preserve_usn is ignored"
conf["id"] = self.col._backend.add_or_update_deck_config_legacy(
json=to_json_bytes(conf)
)
def add_config(
self, name: str, clone_from: Optional[DeckConfigDict] = None
) -> DeckConfigDict:
if clone_from is not None:
conf = copy.deepcopy(clone_from)
conf["id"] = 0
else:
conf = from_json_bytes(self.col._backend.new_deck_config_legacy())
conf["name"] = name
self.update_config(conf)
return conf
def add_config_returning_id(
self, name: str, clone_from: Optional[DeckConfigDict] = None
) -> DeckConfigId:
return self.add_config(name, clone_from)["id"]
def remove_config(self, id: DeckConfigId) -> None:
"Remove a configuration and update all decks using it."
self.col.mod_schema(check=True)
for deck in self.all():
# ignore cram decks
if "conf" not in deck:
continue
if str(deck["conf"]) == str(id):
deck["conf"] = 1
self.save(deck)
self.col._backend.remove_deck_config(id)
def set_config_id_for_deck_dict(self, deck: DeckDict, id: DeckConfigId) -> None:
deck["conf"] = id
self.save(deck)
def decks_using_config(self, conf: DeckConfigDict) -> List[DeckId]:
dids = []
for deck in self.all():
if "conf" in deck and deck["conf"] == conf["id"]:
dids.append(deck["id"])
return dids
def restore_to_default(self, conf: DeckConfigDict) -> None:
old_order = conf["new"]["order"]
new = from_json_bytes(self.col._backend.new_deck_config_legacy())
new["id"] = conf["id"]
new["name"] = conf["name"]
self.update_config(new)
# if it was previously randomized, re-sort
if not old_order:
self.col.sched.resortConf(new)
# Deck utils
#############################################################
def name(self, did: DeckId, default: bool = False) -> str:
deck = self.get(did, default=default)
if deck:
return deck["name"]
return self.col.tr.decks_no_deck()
def name_if_exists(self, did: DeckId) -> Optional[str]:
deck = self.get(did, default=False)
if deck:
return deck["name"]
return None
def cids(self, did: DeckId, children: bool = False) -> List[CardId]:
if not children:
return self.col.db.list("select id from cards where did=?", did)
dids = [did]
for name, id in self.children(did):
dids.append(id)
return self.col.db.list(f"select id from cards where did in {ids2str(dids)}")
def for_card_ids(self, cids: List[CardId]) -> List[DeckId]:
return self.col.db.list(f"select did from cards where id in {ids2str(cids)}")
# Deck selection
#############################################################
def set_current(self, deck: DeckId) -> OpChanges:
return self.col._backend.set_current_deck(deck)
def get_current_id(self) -> DeckId:
"The currently selected deck ID."
return DeckId(self.col._backend.get_current_deck().id)
def current(self) -> DeckDict:
return self.get(self.selected())
def active(self) -> List[DeckId]:
# some add-ons assume this will always be non-empty
return self.col.sched.active_decks or [DeckId(1)]
def select(self, did: DeckId) -> None:
# make sure arg is an int; legacy callers may be passing in a string
did = DeckId(did)
self.set_current(did)
self.col.reset()
selected = get_current_id
# Parents/children
#############################################################
@staticmethod
def path(name: str) -> List[str]:
return name.split("::")
@classmethod
def basename(cls, name: str) -> str:
return cls.path(name)[-1]
@classmethod
def immediate_parent_path(cls, name: str) -> List[str]:
return cls.path(name)[:-1]
@classmethod
def immediate_parent(cls, name: str) -> Optional[str]:
parent_path = cls.immediate_parent_path(name)
if parent_path:
return "::".join(parent_path)
return None
@classmethod
def key(cls, deck: DeckDict) -> List[str]:
return cls.path(deck["name"])
def children(self, did: DeckId) -> List[Tuple[str, DeckId]]:
"All children of did, as (name, id)."
name = self.get(did)["name"]
actv = []
for entry in self.all_names_and_ids():
if entry.name.startswith(f"{name}::"):
actv.append((entry.name, DeckId(entry.id)))
return actv
def child_ids(self, parent_name: str) -> Iterable[DeckId]:
prefix = f"{parent_name}::"
return (
DeckId(d.id) for d in self.all_names_and_ids() if d.name.startswith(prefix)
)
def deck_and_child_ids(self, deck_id: DeckId) -> List[DeckId]:
parent_name = self.name(deck_id)
out = [deck_id]
out.extend(self.child_ids(parent_name))
return out
def parents(
self, did: DeckId, name_map: Optional[Dict[str, DeckDict]] = None
) -> List[DeckDict]:
"All parents of did."
# get parent and grandparent names
parents_names: List[str] = []
for part in self.immediate_parent_path(self.get(did)["name"]):
if not parents_names:
parents_names.append(part)
else:
parents_names.append(f"{parents_names[-1]}::{part}")
parents: List[DeckDict] = []
# convert to objects
for parent_name in parents_names:
if name_map:
deck = name_map[parent_name]
else:
deck = self.get(self.id(parent_name))
parents.append(deck)
return parents
def parents_by_name(self, name: str) -> List[DeckDict]:
"All existing parents of name"
if "::" not in name:
return []
names = self.immediate_parent_path(name)
head = []
parents: List[DeckDict] = []
while names:
head.append(names.pop(0))
deck = self.by_name("::".join(head))
if deck:
parents.append(deck)
return parents
# Filtered decks
##########################################################################
def new_filtered(self, name: str) -> DeckId:
"For new code, prefer col.sched.get_or_create_filtered_deck()."
did = self.id(name, type=DEFAULT_DECK_CONF_ID)
self.select(did)
return did
def is_filtered(self, did: Union[DeckId, str]) -> bool:
return bool(self.get(did)["dyn"])
# Legacy
#############
@deprecated(info="no longer required")
def flush(self) -> None:
pass
@deprecated(replaced_by=remove)
def rem(
self,
did: DeckId,
**legacy_args: bool,
) -> None:
"Remove the deck. If cardsToo, delete any cards inside."
if isinstance(did, str):
did = int(did)
self.remove([did])
@deprecated(replaced_by=all_names_and_ids)
def name_map(self) -> Dict[str, DeckDict]:
return {d["name"]: d for d in self.all()}
@deprecated(info="use col.set_deck() instead")
def set_deck(self, cids: List[CardId], did: DeckId) -> None:
self.col.set_deck(card_ids=cids, deck_id=did)
self.col.db.execute(
f"update cards set did=?,usn=?,mod=? where id in {ids2str(cids)}",
did,
self.col.usn(),
intTime(),
)
@deprecated(replaced_by=all_names_and_ids)
def all_ids(self) -> List[str]:
return [str(x.id) for x in self.all_names_and_ids()]
@deprecated(replaced_by=all_names_and_ids)
def all_names(self, dyn: bool = True, force_default: bool = True) -> List[str]:
return [
x.name
for x in self.all_names_and_ids(
skip_empty_default=not force_default, include_filtered=dyn
)
]
DeckManager.register_deprecated_aliases(
confForDid=DeckManager.config_dict_for_deck_id,
setConf=DeckManager.set_config_id_for_deck_dict,
didsForConf=DeckManager.decks_using_config,
allConf=DeckManager.all_config,
getConf=DeckManager.get_config,
updateConf=DeckManager.update_config,
remConf=DeckManager.remove_config,
confId=DeckManager.add_config_returning_id,
newDyn=DeckManager.new_filtered,
isDyn=DeckManager.is_filtered,
nameOrNone=DeckManager.name_if_exists,
)
@no_type_check
def __getattr__(name):
if name == "defaultDeck":
print_deprecation_warning(
"defaultDeck is deprecated; call decks.id() without it"
)
return 0
elif name == "defaultDynamicDeck":
print_deprecation_warning("defaultDynamicDeck is replaced with new_filtered()")
return 1
else:
raise AttributeError(f"module {__name__} has no attribute {name}")