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import json
import pathlib
import sqlite3
from peewee import *
class MemoryConnection(sqlite3.Connection):
def __init__(self, dbname, *args, **kwargs):
load_conn = sqlite3.connect(dbname)
super(MemoryConnection, self).__init__(":memory:", *args, **kwargs)
load_conn.backup(self)
load_conn.close()
class SqliteMemDatabase(SqliteDatabase):
def __init__(self, database, *args, **kwargs) -> None:
self.dbname = database
super().__init__(database, *args, factory=MemoryConnection, **kwargs)
def reload(self, dbname=None):
if dbname is None:
dbname = self.dbname
load_conn = sqlite3.connect(dbname)
try:
load_conn.backup(self._state.conn)
finally:
load_conn.close()
def save(self, dbname=None):
if dbname is None:
dbname = self.dbname
save_conn = sqlite3.connect(dbname)
try:
self._state.conn.backup(save_conn)
finally:
save_conn.close()
# db = SqliteMemDatabase(pathlib.Path(__file__).parent.resolve() / "danbooru2023.db")
db = SqliteDatabase(pathlib.Path(__file__).parent.resolve() / "danbooru2023.db")
class TagListField(TextField):
def db_value(self, value):
assert all(isinstance(tag, (Tag, int)) for tag in value)
return json.dumps([tag.id if isinstance(tag, Tag) else tag for tag in value])
def python_value(self, value):
if value is not None:
id_list = json.loads(value)
tags = Tag.select().where(Tag.id << id_list)
return [tag for tag in tags]
class BaseModel(Model):
class Meta:
database = db
class Post(BaseModel):
id = IntegerField(primary_key=True)
created_at = CharField()
uploader_id = IntegerField()
source = CharField()
md5 = CharField(null=True)
parent_id = IntegerField(null=True)
has_children = BooleanField()
is_deleted = BooleanField()
is_banned = BooleanField()
pixiv_id = IntegerField(null=True)
has_active_children = BooleanField()
bit_flags = IntegerField()
has_large = BooleanField()
has_visible_children = BooleanField()
image_width = IntegerField()
image_height = IntegerField()
file_size = IntegerField()
file_ext = CharField()
rating = CharField()
score = IntegerField()
up_score = IntegerField()
down_score = IntegerField()
fav_count = IntegerField()
file_url = CharField()
large_file_url = CharField()
preview_file_url = CharField()
tag_list = TagListField()
tag_list_general = TagListField()
tag_list_artist = TagListField()
tag_list_character = TagListField()
tag_list_copyright = TagListField()
tag_list_meta = TagListField()
tag_count = IntegerField()
tag_count_general = IntegerField()
tag_count_artist = IntegerField()
tag_count_character = IntegerField()
tag_count_copyright = IntegerField()
tag_count_meta = IntegerField()
class Tag(BaseModel):
id = IntegerField(primary_key=True)
name = CharField(unique=True)
type = CharField()
popularity = IntegerField()
if __name__ == "__main__":
db.connect()
db.create_tables([Post, Tag])
db.save()
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