Creating and editing *.apkg and *.anki2 safely
Project description
AnkiSync 2
*.apkg and *.anki2 file structure is very simple, but with some quirks of incompleteness.
*.apkg file structure is a zip of at least two files.
.
├── example
│ ├── example.anki2
│ ├── media
│ ├── 1 # Media files with the names masked as integers
│ ├── 2
│ ├── 3
| └── ...
└── example.apkg
*.anki2 is a SQLite file with foreign key disabled, and the usage of some JSON schemas instead of some tables
Also, *.anki2 is used internally at os.path.join(appdirs.user_data_dir('Anki2'), 'User 1', 'collection.anki2')
, so editing the SQLite there will also edit the database.
The media
file is a text file of at least a string of {}
, which is actually a dictionary of keys -- stringified int; and values -- filenames.
Usage
Some extra tables are created if not exists.
from ankisync2.apkg import Apkg, db
apkg = Apkg("example.apkg") # Or Apkg("example/") also works, otherwise the folder named 'example' will be created.
db.database.execute_sql(SQL, PARAMS)
apkg.zip(output="example1.apkg")
I also support adding media.
apkg.add_media("path/to/media.jpg")
To find the wanted cards and media, iterate though the Apkg
and Apkg.iter_media
object.
iter_apkg = iter(apkg)
for i in range(5):
print(next(iter_apkg))
Creating a new *.apkg
You can create a new *.apkg via Apkg
with any custom filename (and *.anki2 via Anki2()
). A folder required to create *.apkg needs to be created first.
from ankisync2.apkg import Apkg
apkg = Apkg("example") # Create example folder
After that, the Apkg will require at least 1 card, which is connected to at least 1 note, 1 model, 1 template, and 1 deck; which should be created in this order.
- Model, Deck
- Template, Note
- Card
from ankisync2.apkg import db
m = db.Models.create(name="foo", flds=["field1", "field2"])
d = db.Decks.create(name="bar::baz")
t = [
db.Templates.create(name="fwd", mid=m.id, qfmt="{{field1}}", afmt="{{field2}}"),
db.Templates.create(name="bwd", mid=m.id, qfmt="{{field2}}", afmt="{{field1}}")
]
n = db.Notes.create(mid=m.id, flds=["data1", "<img src='media.jpg'>"], tags=["tag1", "tag2"])
c = [
db.Cards.create(nid=n.id, did=d.id, ord=i)
for i, _ in enumerate(t)
]
You can also add media, which is not related to the SQLite database.
apkg.add_media("path/to/media.jpg")
Finally, finalize with
apkg.export("example1.apkg")
Updating an *.apkg
This is also possible, by modifying db.Notes.data
as sqlite_ext.JSONField
, with peewee.signals
.
It is now as simple as,
from ankisync2.apkg import Apkg, db
apkg = Apkg("example1.apkg")
for n in db.Notes.filter(db.Notes.data["field1"] == "data1"):
n.data["field3"] = "data2"
n.save()
apkg.close()
JSON schema of Col.models
, Col.decks
, Col.conf
and Col.dconf
I have created dataclasses
for this at /ankisync2/builder.py. To serialize it, use dataclasses.asdict
or
from ankisync2.util import DataclassJSONEncoder
import json
json.dumps(dataclassObject, cls=DataclassJSONEncoder)
Editing user's collection.anki2
This can be found at ${ankiPath}/${user}/collection.anki2
, but you might need ankisync2.anki21
package, depending on your Anki version. Of course, do this at your own risk. Always backup first.
from ankisync2.anki21 import db
from ankisync2.dir import AnkiPath
db.database.init(AnkiPath().collection)
Using peewee
framework
This is based on peewee
ORM framework. You can use Dataclasses and Lists directly, without converting them to string first.
Examples
Please see /examples, /scripts and /tests.
Installation
pip install ankisync2
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