Anki/pylib/anki/models.py

573 lines
20 KiB
Python

# Copyright: Ankitects Pty Ltd and contributors
# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
from __future__ import annotations
import copy
import pprint
import sys
import time
from typing import Any, NewType, Sequence, Union
import anki # pylint: disable=unused-import
import anki.collection
import anki.notes
from anki import notetypes_pb2
from anki._legacy import DeprecatedNamesMixin, deprecated, print_deprecation_warning
from anki.collection import OpChanges, OpChangesWithId
from anki.consts import *
from anki.errors import NotFoundError
from anki.lang import without_unicode_isolation
from anki.stdmodels import StockNotetypeKind
from anki.utils import checksum, from_json_bytes, to_json_bytes
# public exports
NotetypeNameId = notetypes_pb2.NotetypeNameId
NotetypeNameIdUseCount = notetypes_pb2.NotetypeNameIdUseCount
NotetypeNames = notetypes_pb2.NotetypeNames
ChangeNotetypeInfo = notetypes_pb2.ChangeNotetypeInfo
ChangeNotetypeRequest = notetypes_pb2.ChangeNotetypeRequest
StockNotetype = notetypes_pb2.StockNotetype
# legacy types
NotetypeDict = dict[str, Any]
NoteType = NotetypeDict
FieldDict = dict[str, Any]
TemplateDict = dict[str, Union[str, int, None]]
NotetypeId = NewType("NotetypeId", int)
sys.modules["anki.models"].NoteType = NotetypeDict # type: ignore
class ModelsDictProxy:
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.models, not col.models.models dict"
)
def __getitem__(self, item: Any) -> Any:
self._warn()
return self._col.models.get(NotetypeId(int(item)))
def __setitem__(self, key: str, val: Any) -> None:
self._warn()
self._col.models.save(val)
def __len__(self) -> int:
self._warn()
return len(self._col.models.all_names_and_ids())
def keys(self) -> Any:
self._warn()
return [str(nt.id) for nt in self._col.models.all_names_and_ids()]
def values(self) -> Any:
self._warn()
return self._col.models.all()
def items(self) -> Any:
self._warn()
return [(str(nt["id"]), nt) for nt in self._col.models.all()]
def __contains__(self, item: Any) -> bool:
self._warn()
return self._col.models.have(item)
class ModelManager(DeprecatedNamesMixin):
# Saving/loading registry
#############################################################
def __init__(self, col: anki.collection.Collection) -> None:
self.col = col.weakref()
self.models = ModelsDictProxy(col)
# do not access this directly!
self._cache = {}
def __repr__(self) -> str:
attrs = dict(self.__dict__)
del attrs["col"]
return f"{super().__repr__()} {pprint.pformat(attrs, width=300)}"
# Caching
#############################################################
# A lot of existing code expects to be able to quickly and
# frequently obtain access to an entire notetype, so we currently
# need to cache responses from the backend. Please do not
# access the cache directly!
_cache: dict[NotetypeId, NotetypeDict] = {}
def _update_cache(self, notetype: NotetypeDict) -> None:
self._cache[notetype["id"]] = notetype
def _remove_from_cache(self, ntid: NotetypeId) -> None:
if ntid in self._cache:
del self._cache[ntid]
def _get_cached(self, ntid: NotetypeId) -> NotetypeDict | None:
return self._cache.get(ntid)
def _clear_cache(self) -> None:
self._cache = {}
# Listing note types
#############################################################
def all_names_and_ids(self) -> Sequence[NotetypeNameId]:
return self.col._backend.get_notetype_names()
def all_use_counts(self) -> Sequence[NotetypeNameIdUseCount]:
return self.col._backend.get_notetype_names_and_counts()
# only used by importing code
def have(self, id: NotetypeId) -> bool:
if isinstance(id, str):
id = int(id)
return any(True for e in self.all_names_and_ids() if e.id == id)
# Current note type
#############################################################
def current(self, for_deck: bool = True) -> NotetypeDict:
"Get current model. In new code, prefer col.defaults_for_adding()"
notetype = self.get(self.col.decks.current().get("mid"))
if not for_deck or not notetype:
notetype = self.get(self.col.conf["curModel"])
if notetype:
return notetype
return self.get(NotetypeId(self.all_names_and_ids()[0].id))
# Retrieving and creating models
#############################################################
def id_for_name(self, name: str) -> NotetypeId | None:
try:
return NotetypeId(self.col._backend.get_notetype_id_by_name(name))
except NotFoundError:
return None
def get(self, id: NotetypeId) -> NotetypeDict | None:
"Get model with ID, or None."
# deal with various legacy input types
if id is None:
return None
elif isinstance(id, str):
id = int(id)
notetype = self._get_cached(id)
if not notetype:
try:
notetype = from_json_bytes(self.col._backend.get_notetype_legacy(id))
self._update_cache(notetype)
except NotFoundError:
return None
return notetype
def all(self) -> list[NotetypeDict]:
"Get all models."
return [self.get(NotetypeId(nt.id)) for nt in self.all_names_and_ids()]
def by_name(self, name: str) -> NotetypeDict | None:
"Get model with NAME."
id = self.id_for_name(name)
if id:
return self.get(id)
else:
return None
def new(self, name: str) -> NotetypeDict:
"Create a new model, and return it."
# caller should call save() after modifying
notetype = from_json_bytes(
self.col._backend.get_stock_notetype_legacy(StockNotetypeKind.KIND_BASIC)
)
notetype["flds"] = []
notetype["tmpls"] = []
notetype["name"] = name
return notetype
def remove_all_notetypes(self) -> None:
for notetype in self.all_names_and_ids():
self._remove_from_cache(NotetypeId(notetype.id))
self.col._backend.remove_notetype(notetype.id)
def remove(self, id: NotetypeId) -> OpChanges:
"Modifies schema."
self._remove_from_cache(id)
return self.col._backend.remove_notetype(id)
def add(self, notetype: NotetypeDict) -> OpChangesWithId:
"Replaced with add_dict()"
self.ensure_name_unique(notetype)
out = self.col._backend.add_notetype_legacy(to_json_bytes(notetype))
notetype["id"] = out.id
self._mutate_after_write(notetype)
return out
def add_dict(self, notetype: NotetypeDict) -> OpChangesWithId:
"Notetype needs to be fetched from DB after adding."
self.ensure_name_unique(notetype)
return self.col._backend.add_notetype_legacy(to_json_bytes(notetype))
def ensure_name_unique(self, notetype: NotetypeDict) -> None:
existing_id = self.id_for_name(notetype["name"])
if existing_id is not None and existing_id != notetype["id"]:
notetype["name"] += f"-{checksum(str(time.time()))[:5]}"
def update_dict(
self, notetype: NotetypeDict, skip_checks: bool = False
) -> OpChanges:
"Update a NotetypeDict. Caller will need to re-load notetype if new fields/cards added."
self._remove_from_cache(notetype["id"])
self.ensure_name_unique(notetype)
return self.col._backend.update_notetype_legacy(
json=to_json_bytes(notetype), skip_checks=skip_checks
)
def _mutate_after_write(self, notetype: NotetypeDict) -> None:
# existing code expects the note type to be mutated to reflect
# the changes made when adding, such as ordinal assignment :-(
updated = self.get(notetype["id"])
notetype.update(updated)
# Tools
##################################################
def nids(self, ntid: NotetypeId) -> list[anki.notes.NoteId]:
"Note ids for M."
if isinstance(ntid, dict):
# legacy callers passed in note type
ntid = ntid["id"]
return self.col.db.list("select id from notes where mid = ?", ntid)
def use_count(self, notetype: NotetypeDict) -> int:
"Number of note using M."
return self.col.db.scalar(
"select count() from notes where mid = ?", notetype["id"]
)
# Copying
##################################################
def copy(self, notetype: NotetypeDict, add: bool = True) -> NotetypeDict:
"Copy, save and return."
cloned = copy.deepcopy(notetype)
cloned["name"] = without_unicode_isolation(
self.col.tr.notetypes_copy(val=cloned["name"])
)
cloned["id"] = 0
cloned["originalId"] = None
if add:
self.add(cloned)
return cloned
# Fields
##################################################
def field_map(self, notetype: NotetypeDict) -> dict[str, tuple[int, FieldDict]]:
"Mapping of field name -> (ord, field)."
return {f["name"]: (f["ord"], f) for f in notetype["flds"]}
def field_names(self, notetype: NotetypeDict) -> list[str]:
return [f["name"] for f in notetype["flds"]]
def sort_idx(self, notetype: NotetypeDict) -> int:
return notetype["sortf"]
# Adding & changing fields
##################################################
def new_field(self, name: str) -> FieldDict:
assert isinstance(name, str)
notetype = from_json_bytes(
self.col._backend.get_stock_notetype_legacy(StockNotetypeKind.KIND_BASIC)
)
field = notetype["flds"][0]
field["name"] = name
field["ord"] = None
return field
def add_field(self, notetype: NotetypeDict, field: FieldDict) -> None:
"Modifies schema."
notetype["flds"].append(field)
def remove_field(self, notetype: NotetypeDict, field: FieldDict) -> None:
"Modifies schema."
notetype["flds"].remove(field)
def reposition_field(
self, notetype: NotetypeDict, field: FieldDict, idx: int
) -> None:
"Modifies schema."
oldidx = notetype["flds"].index(field)
if oldidx == idx:
return
notetype["flds"].remove(field)
notetype["flds"].insert(idx, field)
def rename_field(
self, notetype: NotetypeDict, field: FieldDict, new_name: str
) -> None:
if not field in notetype["flds"]:
raise Exception("invalid field")
field["name"] = new_name
def set_sort_index(self, notetype: NotetypeDict, idx: int) -> None:
"Modifies schema."
if not 0 <= idx < len(notetype["flds"]):
raise Exception("invalid sort index")
notetype["sortf"] = idx
# Adding & changing templates
##################################################
def new_template(self, name: str) -> TemplateDict:
notetype = from_json_bytes(
self.col._backend.get_stock_notetype_legacy(StockNotetypeKind.KIND_BASIC)
)
template = notetype["tmpls"][0]
template["name"] = name
template["qfmt"] = ""
template["afmt"] = ""
template["ord"] = None
return template
def add_template(self, notetype: NotetypeDict, template: TemplateDict) -> None:
"Modifies schema."
notetype["tmpls"].append(template)
def remove_template(self, notetype: NotetypeDict, template: TemplateDict) -> None:
"Modifies schema."
if not len(notetype["tmpls"]) > 1:
raise Exception("must have 1 template")
notetype["tmpls"].remove(template)
def reposition_template(
self, notetype: NotetypeDict, template: TemplateDict, idx: int
) -> None:
"Modifies schema."
oldidx = notetype["tmpls"].index(template)
if oldidx == idx:
return
notetype["tmpls"].remove(template)
notetype["tmpls"].insert(idx, template)
def template_use_count(self, ntid: NotetypeId, ord: int) -> int:
return self.col.db.scalar(
"""
select count() from cards, notes where cards.nid = notes.id
and notes.mid = ? and cards.ord = ?""",
ntid,
ord,
)
# Changing notetypes of notes
##########################################################################
def get_single_notetype_of_notes(
self, note_ids: Sequence[anki.notes.NoteId]
) -> NotetypeId:
return NotetypeId(
self.col._backend.get_single_notetype_of_notes(note_ids=note_ids)
)
def change_notetype_info(
self, *, old_notetype_id: NotetypeId, new_notetype_id: NotetypeId
) -> ChangeNotetypeInfo:
return self.col._backend.get_change_notetype_info(
old_notetype_id=old_notetype_id, new_notetype_id=new_notetype_id
)
def change_notetype_of_notes(self, input: ChangeNotetypeRequest) -> OpChanges:
"""Assign a new notetype, optionally altering field/template order.
To get defaults, use
input = ChangeNotetypeRequest()
input.ParseFromString(col.models.change_notetype_info(...))
input.note_ids.extend([...])
The new_fields and new_templates lists are relative to the new notetype's
field/template count. Each value represents the index in the previous
notetype. -1 indicates the original value will be discarded.
"""
op_bytes = self.col._backend.change_notetype_raw(input.SerializeToString())
return OpChanges.FromString(op_bytes)
def restore_notetype_to_stock(
self, notetype_id: NotetypeId, force_kind: StockNotetypeKind.V | None
) -> OpChanges:
msg = notetypes_pb2.RestoreNotetypeToStockRequest(
notetype_id=notetypes_pb2.NotetypeId(ntid=notetype_id),
)
if force_kind is not None:
msg.force_kind = force_kind
return self.col._backend.restore_notetype_to_stock(msg)
# legacy API - used by unit tests and add-ons
def change( # pylint: disable=invalid-name
self,
notetype: NotetypeDict,
nids: list[anki.notes.NoteId],
newModel: NotetypeDict,
fmap: dict[int, int | None],
cmap: dict[int, int | None] | None,
) -> None:
# - maps are ord->ord, and there should not be duplicate targets
self.col.mod_schema(check=True)
assert fmap
field_map = self._convert_legacy_map(fmap, len(newModel["flds"]))
is_cloze = newModel["type"] == MODEL_CLOZE or notetype["type"] == MODEL_CLOZE
if not cmap or is_cloze:
template_map = []
else:
template_map = self._convert_legacy_map(cmap, len(newModel["tmpls"]))
self.col._backend.change_notetype(
note_ids=nids,
new_fields=field_map,
new_templates=template_map,
old_notetype_name=notetype["name"],
old_notetype_id=notetype["id"],
new_notetype_id=newModel["id"],
current_schema=self.col.db.scalar("select scm from col"),
is_cloze=is_cloze,
)
def _convert_legacy_map(
self, old_to_new: dict[int, int | None], new_count: int
) -> list[int]:
"Convert old->new map to list of old indexes"
new_to_old = {v: k for k, v in old_to_new.items() if v is not None}
out = []
for idx in range(new_count):
try:
val = new_to_old[idx]
except KeyError:
val = -1
out.append(val)
return out
# Schema hash
##########################################################################
def scmhash(self, notetype: NotetypeDict) -> str:
"Return a hash of the schema, to see if models are compatible."
buf = ""
for field in notetype["flds"]:
buf += field["name"]
for template in notetype["tmpls"]:
buf += template["name"]
return checksum(buf)
# Legacy
##########################################################################
# pylint: disable=invalid-name
@deprecated(info="use note.cloze_numbers_in_fields()")
def _availClozeOrds(
self, notetype: NotetypeDict, flds: str, allow_empty: bool = True
) -> list[int]:
import anki.notes_pb2
note = anki.notes_pb2.Note(fields=[flds])
return list(self.col._backend.cloze_numbers_in_note(note))
# @deprecated(replaced_by=add_template)
def addTemplate(self, notetype: NotetypeDict, template: TemplateDict) -> None:
self.add_template(notetype, template)
if notetype["id"]:
self.update(notetype)
# @deprecated(replaced_by=remove_template)
def remTemplate(self, notetype: NotetypeDict, template: TemplateDict) -> None:
self.remove_template(notetype, template)
self.update(notetype)
# @deprecated(replaced_by=reposition_template)
def move_template(
self, notetype: NotetypeDict, template: TemplateDict, idx: int
) -> None:
self.reposition_template(notetype, template, idx)
self.update(notetype)
# @deprecated(replaced_by=add_field)
def addField(self, notetype: NotetypeDict, field: FieldDict) -> None:
self.add_field(notetype, field)
if notetype["id"]:
self.update(notetype)
# @deprecated(replaced_by=remove_field)
def remField(self, notetype: NotetypeDict, field: FieldDict) -> None:
self.remove_field(notetype, field)
self.update(notetype)
# @deprecated(replaced_by=reposition_field)
def moveField(self, notetype: NotetypeDict, field: FieldDict, idx: int) -> None:
self.reposition_field(notetype, field, idx)
self.update(notetype)
# @deprecated(replaced_by=rename_field)
def renameField(
self, notetype: NotetypeDict, field: FieldDict, new_name: str
) -> None:
self.rename_field(notetype, field, new_name)
self.update(notetype)
@deprecated(replaced_by=remove)
def rem(self, m: NotetypeDict) -> None:
"Delete model, and all its cards/notes."
self.remove(m["id"])
# @deprecated(info="not needed; is updated on note add")
def set_current(self, m: NotetypeDict) -> None:
self.col.set_config("curModel", m["id"])
@deprecated(replaced_by=all_names_and_ids)
def all_names(self) -> list[str]:
return [n.name for n in self.all_names_and_ids()]
@deprecated(replaced_by=all_names_and_ids)
def ids(self) -> list[NotetypeId]:
return [NotetypeId(n.id) for n in self.all_names_and_ids()]
@deprecated(info="no longer required")
def flush(self) -> None:
pass
# @deprecated(replaced_by=update_dict)
def update(
self,
notetype: NotetypeDict,
preserve_usn: bool = True,
skip_checks: bool = False,
) -> None:
"Add or update an existing model. Use .update_dict() instead."
self._remove_from_cache(notetype["id"])
self.ensure_name_unique(notetype)
notetype["id"] = self.col._backend.add_or_update_notetype(
json=to_json_bytes(notetype),
preserve_usn_and_mtime=preserve_usn,
skip_checks=skip_checks,
)
self.set_current(notetype)
self._mutate_after_write(notetype)
# @deprecated(replaced_by=update_dict)
def save(self, notetype: NotetypeDict = None, **legacy_kwargs: bool) -> None:
"Save changes made to provided note type."
if not notetype:
print_deprecation_warning(
"col.models.save() should be passed the changed notetype"
)
return
self.update(notetype, preserve_usn=False)