mirror of
https://github.com/janeczku/calibre-web
synced 2024-11-25 02:57:22 +00:00
772 lines
31 KiB
Python
772 lines
31 KiB
Python
# -*- coding: utf-8 -*-
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# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
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# Copyright (C) 2012-2019 mutschler, cervinko, ok11, jkrehm, nanu-c, Wineliva,
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# pjeby, elelay, idalin, Ozzieisaacs
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import division, print_function, unicode_literals
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import sys
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import os
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import re
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import ast
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import json
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from datetime import datetime
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from sqlalchemy import create_engine
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from sqlalchemy import Table, Column, ForeignKey, CheckConstraint
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from sqlalchemy import String, Integer, Boolean, TIMESTAMP, Float
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from sqlalchemy.orm import relationship, sessionmaker, scoped_session
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from sqlalchemy.orm.collections import InstrumentedList
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from sqlalchemy.ext.declarative import declarative_base, DeclarativeMeta
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from sqlalchemy.pool import StaticPool
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from sqlalchemy.sql.expression import and_, true, false, text, func, or_
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from sqlalchemy.ext.associationproxy import association_proxy
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from flask_login import current_user
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from babel import Locale as LC
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from babel.core import UnknownLocaleError
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from flask_babel import gettext as _
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from . import logger, ub, isoLanguages
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from .pagination import Pagination
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from weakref import WeakSet
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try:
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import unidecode
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use_unidecode = True
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except ImportError:
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use_unidecode = False
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cc_exceptions = ['datetime', 'comments', 'composite', 'series']
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cc_classes = {}
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Base = declarative_base()
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books_authors_link = Table('books_authors_link', Base.metadata,
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Column('book', Integer, ForeignKey('books.id'), primary_key=True),
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Column('author', Integer, ForeignKey('authors.id'), primary_key=True)
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)
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books_tags_link = Table('books_tags_link', Base.metadata,
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Column('book', Integer, ForeignKey('books.id'), primary_key=True),
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Column('tag', Integer, ForeignKey('tags.id'), primary_key=True)
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)
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books_series_link = Table('books_series_link', Base.metadata,
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Column('book', Integer, ForeignKey('books.id'), primary_key=True),
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Column('series', Integer, ForeignKey('series.id'), primary_key=True)
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)
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books_ratings_link = Table('books_ratings_link', Base.metadata,
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Column('book', Integer, ForeignKey('books.id'), primary_key=True),
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Column('rating', Integer, ForeignKey('ratings.id'), primary_key=True)
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)
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books_languages_link = Table('books_languages_link', Base.metadata,
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Column('book', Integer, ForeignKey('books.id'), primary_key=True),
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Column('lang_code', Integer, ForeignKey('languages.id'), primary_key=True)
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)
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books_publishers_link = Table('books_publishers_link', Base.metadata,
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Column('book', Integer, ForeignKey('books.id'), primary_key=True),
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Column('publisher', Integer, ForeignKey('publishers.id'), primary_key=True)
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)
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class Identifiers(Base):
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__tablename__ = 'identifiers'
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id = Column(Integer, primary_key=True)
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type = Column(String(collation='NOCASE'), nullable=False, default="isbn")
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val = Column(String(collation='NOCASE'), nullable=False)
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book = Column(Integer, ForeignKey('books.id'), nullable=False)
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def __init__(self, val, id_type, book):
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self.val = val
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self.type = id_type
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self.book = book
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def formatType(self):
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format_type = self.type.lower()
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if format_type == 'amazon':
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return u"Amazon"
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elif format_type.startswith("amazon_"):
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return u"Amazon.{0}".format(format_type[7:])
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elif format_type == "isbn":
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return u"ISBN"
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elif format_type == "doi":
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return u"DOI"
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elif format_type == "douban":
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return u"Douban"
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elif format_type == "goodreads":
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return u"Goodreads"
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elif format_type == "google":
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return u"Google Books"
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elif format_type == "kobo":
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return u"Kobo"
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elif format_type == "litres":
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return u"ЛитРес"
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elif format_type == "issn":
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return u"ISSN"
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elif format_type == "isfdb":
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return u"ISFDB"
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if format_type == "lubimyczytac":
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return u"Lubimyczytac"
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else:
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return self.type
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def __repr__(self):
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format_type = self.type.lower()
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if format_type == "amazon" or format_type == "asin":
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return u"https://amazon.com/dp/{0}".format(self.val)
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elif format_type.startswith('amazon_'):
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return u"https://amazon.{0}/dp/{1}".format(format_type[7:], self.val)
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elif format_type == "isbn":
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return u"https://www.worldcat.org/isbn/{0}".format(self.val)
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elif format_type == "doi":
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return u"https://dx.doi.org/{0}".format(self.val)
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elif format_type == "goodreads":
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return u"https://www.goodreads.com/book/show/{0}".format(self.val)
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elif format_type == "douban":
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return u"https://book.douban.com/subject/{0}".format(self.val)
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elif format_type == "google":
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return u"https://books.google.com/books?id={0}".format(self.val)
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elif format_type == "kobo":
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return u"https://www.kobo.com/ebook/{0}".format(self.val)
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elif format_type == "lubimyczytac":
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return u"https://lubimyczytac.pl/ksiazka/{0}/ksiazka".format(self.val)
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elif format_type == "litres":
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return u"https://www.litres.ru/{0}".format(self.val)
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elif format_type == "issn":
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return u"https://portal.issn.org/resource/ISSN/{0}".format(self.val)
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elif format_type == "isfdb":
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return u"http://www.isfdb.org/cgi-bin/pl.cgi?{0}".format(self.val)
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elif format_type == "url":
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return u"{0}".format(self.val)
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else:
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return u""
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class Comments(Base):
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__tablename__ = 'comments'
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id = Column(Integer, primary_key=True)
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text = Column(String(collation='NOCASE'), nullable=False)
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book = Column(Integer, ForeignKey('books.id'), nullable=False)
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def __init__(self, text, book):
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self.text = text
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self.book = book
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def get(self):
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return self.text
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def __repr__(self):
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return u"<Comments({0})>".format(self.text)
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class Tags(Base):
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__tablename__ = 'tags'
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id = Column(Integer, primary_key=True, autoincrement=True)
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name = Column(String(collation='NOCASE'), unique=True, nullable=False)
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def __init__(self, name):
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self.name = name
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def get(self):
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return self.name
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def __repr__(self):
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return u"<Tags('{0})>".format(self.name)
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class Authors(Base):
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__tablename__ = 'authors'
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id = Column(Integer, primary_key=True)
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name = Column(String(collation='NOCASE'), unique=True, nullable=False)
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sort = Column(String(collation='NOCASE'))
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link = Column(String, nullable=False, default="")
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def __init__(self, name, sort, link):
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self.name = name
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self.sort = sort
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self.link = link
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def get(self):
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return self.name
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def __repr__(self):
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return u"<Authors('{0},{1}{2}')>".format(self.name, self.sort, self.link)
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class Series(Base):
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__tablename__ = 'series'
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id = Column(Integer, primary_key=True)
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name = Column(String(collation='NOCASE'), unique=True, nullable=False)
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sort = Column(String(collation='NOCASE'))
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def __init__(self, name, sort):
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self.name = name
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self.sort = sort
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def get(self):
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return self.name
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def __repr__(self):
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return u"<Series('{0},{1}')>".format(self.name, self.sort)
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class Ratings(Base):
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__tablename__ = 'ratings'
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id = Column(Integer, primary_key=True)
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rating = Column(Integer, CheckConstraint('rating>-1 AND rating<11'), unique=True)
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def __init__(self, rating):
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self.rating = rating
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def get(self):
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return self.rating
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def __repr__(self):
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return u"<Ratings('{0}')>".format(self.rating)
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class Languages(Base):
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__tablename__ = 'languages'
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id = Column(Integer, primary_key=True)
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lang_code = Column(String(collation='NOCASE'), nullable=False, unique=True)
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def __init__(self, lang_code):
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self.lang_code = lang_code
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def get(self):
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if self.language_name:
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return self.language_name
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else:
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return self.lang_code
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def __repr__(self):
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return u"<Languages('{0}')>".format(self.lang_code)
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class Publishers(Base):
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__tablename__ = 'publishers'
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id = Column(Integer, primary_key=True)
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name = Column(String(collation='NOCASE'), nullable=False, unique=True)
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sort = Column(String(collation='NOCASE'))
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def __init__(self, name, sort):
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self.name = name
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self.sort = sort
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def get(self):
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return self.name
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def __repr__(self):
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return u"<Publishers('{0},{1}')>".format(self.name, self.sort)
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class Data(Base):
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__tablename__ = 'data'
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__table_args__ = {'schema': 'calibre'}
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id = Column(Integer, primary_key=True)
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book = Column(Integer, ForeignKey('books.id'), nullable=False)
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format = Column(String(collation='NOCASE'), nullable=False)
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uncompressed_size = Column(Integer, nullable=False)
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name = Column(String, nullable=False)
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def __init__(self, book, book_format, uncompressed_size, name):
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self.book = book
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self.format = book_format
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self.uncompressed_size = uncompressed_size
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self.name = name
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# ToDo: Check
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def get(self):
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return self.name
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def __repr__(self):
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return u"<Data('{0},{1}{2}{3}')>".format(self.book, self.format, self.uncompressed_size, self.name)
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class Books(Base):
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__tablename__ = 'books'
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DEFAULT_PUBDATE = datetime(101, 1, 1, 0, 0, 0, 0) # ("0101-01-01 00:00:00+00:00")
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id = Column(Integer, primary_key=True, autoincrement=True)
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title = Column(String(collation='NOCASE'), nullable=False, default='Unknown')
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sort = Column(String(collation='NOCASE'))
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author_sort = Column(String(collation='NOCASE'))
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timestamp = Column(TIMESTAMP, default=datetime.utcnow)
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pubdate = Column(TIMESTAMP, default=DEFAULT_PUBDATE)
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series_index = Column(String, nullable=False, default="1.0")
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last_modified = Column(TIMESTAMP, default=datetime.utcnow)
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path = Column(String, default="", nullable=False)
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has_cover = Column(Integer, default=0)
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uuid = Column(String)
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isbn = Column(String(collation='NOCASE'), default="")
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# Iccn = Column(String(collation='NOCASE'), default="")
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flags = Column(Integer, nullable=False, default=1)
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authors = relationship('Authors', secondary=books_authors_link, backref='books')
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tags = relationship('Tags', secondary=books_tags_link, backref='books', order_by="Tags.name")
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comments = relationship('Comments', backref='books')
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data = relationship('Data', backref='books')
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series = relationship('Series', secondary=books_series_link, backref='books')
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ratings = relationship('Ratings', secondary=books_ratings_link, backref='books')
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languages = relationship('Languages', secondary=books_languages_link, backref='books')
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publishers = relationship('Publishers', secondary=books_publishers_link, backref='books')
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identifiers = relationship('Identifiers', backref='books')
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def __init__(self, title, sort, author_sort, timestamp, pubdate, series_index, last_modified, path, has_cover,
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authors, tags, languages=None):
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self.title = title
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self.sort = sort
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self.author_sort = author_sort
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self.timestamp = timestamp
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self.pubdate = pubdate
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self.series_index = series_index
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self.last_modified = last_modified
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self.path = path
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self.has_cover = (has_cover != None)
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def __repr__(self):
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return u"<Books('{0},{1}{2}{3}{4}{5}{6}{7}{8}')>".format(self.title, self.sort, self.author_sort,
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self.timestamp, self.pubdate, self.series_index,
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self.last_modified, self.path, self.has_cover)
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@property
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def atom_timestamp(self):
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return (self.timestamp.strftime('%Y-%m-%dT%H:%M:%S+00:00') or '')
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class Custom_Columns(Base):
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__tablename__ = 'custom_columns'
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id = Column(Integer, primary_key=True)
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label = Column(String)
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name = Column(String)
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datatype = Column(String)
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mark_for_delete = Column(Boolean)
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editable = Column(Boolean)
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display = Column(String)
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is_multiple = Column(Boolean)
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normalized = Column(Boolean)
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def get_display_dict(self):
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display_dict = ast.literal_eval(self.display)
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if sys.version_info < (3, 0):
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display_dict['enum_values'] = [x.decode('unicode_escape') for x in display_dict['enum_values']]
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return display_dict
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class AlchemyEncoder(json.JSONEncoder):
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def default(self, obj):
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if isinstance(obj.__class__, DeclarativeMeta):
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# an SQLAlchemy class
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fields = {}
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for field in [x for x in dir(obj) if not x.startswith('_') and x != 'metadata']:
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if field == 'books':
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continue
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data = obj.__getattribute__(field)
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try:
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if isinstance(data, str):
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data = data.replace("'", "\'")
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elif isinstance(data, InstrumentedList):
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el = list()
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for ele in data:
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if ele.get:
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el.append(ele.get())
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else:
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el.append(json.dumps(ele, cls=AlchemyEncoder))
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data = ",".join(el)
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if data == '[]':
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data = ""
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else:
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json.dumps(data)
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fields[field] = data
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except:
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fields[field] = ""
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# a json-encodable dict
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return fields
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return json.JSONEncoder.default(self, obj)
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class CalibreDB():
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_init = False
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engine = None
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config = None
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session_factory = None
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# This is a WeakSet so that references here don't keep other CalibreDB
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# instances alive once they reach the end of their respective scopes
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instances = WeakSet()
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def __init__(self, expire_on_commit=True):
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""" Initialize a new CalibreDB session
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"""
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self.session = None
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if self._init:
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self.initSession(expire_on_commit)
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self.instances.add(self)
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def initSession(self, expire_on_commit=True):
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self.session = self.session_factory()
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self.session.expire_on_commit = expire_on_commit
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self.update_title_sort(self.config)
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@classmethod
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def setup_db(cls, config, app_db_path):
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cls.config = config
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cls.dispose()
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# toDo: if db changed -> delete shelfs, delete download books, delete read boks, kobo sync??
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if not config.config_calibre_dir:
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config.invalidate()
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return False
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dbpath = os.path.join(config.config_calibre_dir, "metadata.db")
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if not os.path.exists(dbpath):
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config.invalidate()
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return False
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try:
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cls.engine = create_engine('sqlite://',
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echo=False,
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isolation_level="SERIALIZABLE",
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connect_args={'check_same_thread': False},
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poolclass=StaticPool)
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cls.engine.execute("attach database '{}' as calibre;".format(dbpath))
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cls.engine.execute("attach database '{}' as app_settings;".format(app_db_path))
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conn = cls.engine.connect()
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# conn.text_factory = lambda b: b.decode(errors = 'ignore') possible fix for #1302
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except Exception as e:
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config.invalidate(e)
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return False
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config.db_configured = True
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if not cc_classes:
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cc = conn.execute("SELECT id, datatype FROM custom_columns")
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cc_ids = []
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books_custom_column_links = {}
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for row in cc:
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if row.datatype not in cc_exceptions:
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if row.datatype == 'series':
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dicttable = {'__tablename__': 'books_custom_column_' + str(row.id) + '_link',
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'id': Column(Integer, primary_key=True),
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'book': Column(Integer, ForeignKey('books.id'),
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primary_key=True),
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'map_value': Column('value', Integer,
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ForeignKey('custom_column_' +
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str(row.id) + '.id'),
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primary_key=True),
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'extra': Column(Float),
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'asoc': relationship('custom_column_' + str(row.id), uselist=False),
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'value': association_proxy('asoc', 'value')
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}
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|
books_custom_column_links[row.id] = type(str('books_custom_column_' + str(row.id) + '_link'),
|
|
(Base,), dicttable)
|
|
else:
|
|
books_custom_column_links[row.id] = Table('books_custom_column_' + str(row.id) + '_link',
|
|
Base.metadata,
|
|
Column('book', Integer, ForeignKey('books.id'),
|
|
primary_key=True),
|
|
Column('value', Integer,
|
|
ForeignKey('custom_column_' +
|
|
str(row.id) + '.id'),
|
|
primary_key=True)
|
|
)
|
|
cc_ids.append([row.id, row.datatype])
|
|
|
|
ccdict = {'__tablename__': 'custom_column_' + str(row.id),
|
|
'id': Column(Integer, primary_key=True)}
|
|
if row.datatype == 'float':
|
|
ccdict['value'] = Column(Float)
|
|
elif row.datatype == 'int':
|
|
ccdict['value'] = Column(Integer)
|
|
elif row.datatype == 'bool':
|
|
ccdict['value'] = Column(Boolean)
|
|
else:
|
|
ccdict['value'] = Column(String)
|
|
if row.datatype in ['float', 'int', 'bool']:
|
|
ccdict['book'] = Column(Integer, ForeignKey('books.id'))
|
|
cc_classes[row.id] = type(str('custom_column_' + str(row.id)), (Base,), ccdict)
|
|
|
|
for cc_id in cc_ids:
|
|
if (cc_id[1] == 'bool') or (cc_id[1] == 'int') or (cc_id[1] == 'float'):
|
|
setattr(Books,
|
|
'custom_column_' + str(cc_id[0]),
|
|
relationship(cc_classes[cc_id[0]],
|
|
primaryjoin=(
|
|
Books.id == cc_classes[cc_id[0]].book),
|
|
backref='books'))
|
|
elif (cc_id[1] == 'series'):
|
|
setattr(Books,
|
|
'custom_column_' + str(cc_id[0]),
|
|
relationship(books_custom_column_links[cc_id[0]],
|
|
backref='books'))
|
|
else:
|
|
setattr(Books,
|
|
'custom_column_' + str(cc_id[0]),
|
|
relationship(cc_classes[cc_id[0]],
|
|
secondary=books_custom_column_links[cc_id[0]],
|
|
backref='books'))
|
|
|
|
cls.session_factory = scoped_session(sessionmaker(autocommit=False,
|
|
autoflush=True,
|
|
bind=cls.engine))
|
|
for inst in cls.instances:
|
|
inst.initSession()
|
|
|
|
cls._init = True
|
|
return True
|
|
|
|
def get_book(self, book_id):
|
|
return self.session.query(Books).filter(Books.id == book_id).first()
|
|
|
|
def get_filtered_book(self, book_id, allow_show_archived=False):
|
|
return self.session.query(Books).filter(Books.id == book_id). \
|
|
filter(self.common_filters(allow_show_archived)).first()
|
|
|
|
def get_book_by_uuid(self, book_uuid):
|
|
return self.session.query(Books).filter(Books.uuid == book_uuid).first()
|
|
|
|
def get_book_format(self, book_id, format):
|
|
return self.session.query(Data).filter(Data.book == book_id).filter(Data.format == format).first()
|
|
|
|
# Language and content filters for displaying in the UI
|
|
def common_filters(self, allow_show_archived=False):
|
|
if not allow_show_archived:
|
|
archived_books = (
|
|
ub.session.query(ub.ArchivedBook)
|
|
.filter(ub.ArchivedBook.user_id == int(current_user.id))
|
|
.filter(ub.ArchivedBook.is_archived == True)
|
|
.all()
|
|
)
|
|
archived_book_ids = [archived_book.book_id for archived_book in archived_books]
|
|
archived_filter = Books.id.notin_(archived_book_ids)
|
|
else:
|
|
archived_filter = true()
|
|
|
|
if current_user.filter_language() != "all":
|
|
lang_filter = Books.languages.any(Languages.lang_code == current_user.filter_language())
|
|
else:
|
|
lang_filter = true()
|
|
negtags_list = current_user.list_denied_tags()
|
|
postags_list = current_user.list_allowed_tags()
|
|
neg_content_tags_filter = false() if negtags_list == [''] else Books.tags.any(Tags.name.in_(negtags_list))
|
|
pos_content_tags_filter = true() if postags_list == [''] else Books.tags.any(Tags.name.in_(postags_list))
|
|
if self.config.config_restricted_column:
|
|
pos_cc_list = current_user.allowed_column_value.split(',')
|
|
pos_content_cc_filter = true() if pos_cc_list == [''] else \
|
|
getattr(Books, 'custom_column_' + str(self.config.config_restricted_column)). \
|
|
any(cc_classes[self.config.config_restricted_column].value.in_(pos_cc_list))
|
|
neg_cc_list = current_user.denied_column_value.split(',')
|
|
neg_content_cc_filter = false() if neg_cc_list == [''] else \
|
|
getattr(Books, 'custom_column_' + str(self.config.config_restricted_column)). \
|
|
any(cc_classes[self.config.config_restricted_column].value.in_(neg_cc_list))
|
|
else:
|
|
pos_content_cc_filter = true()
|
|
neg_content_cc_filter = false()
|
|
return and_(lang_filter, pos_content_tags_filter, ~neg_content_tags_filter,
|
|
pos_content_cc_filter, ~neg_content_cc_filter, archived_filter)
|
|
|
|
# Fill indexpage with all requested data from database
|
|
def fill_indexpage(self, page, pagesize, database, db_filter, order, *join):
|
|
return self.fill_indexpage_with_archived_books(page, pagesize, database, db_filter, order, False, *join)
|
|
|
|
def fill_indexpage_with_archived_books(self, page, pagesize, database, db_filter, order, allow_show_archived,
|
|
*join):
|
|
pagesize = pagesize or self.config.config_books_per_page
|
|
if current_user.show_detail_random():
|
|
randm = self.session.query(Books) \
|
|
.filter(self.common_filters(allow_show_archived)) \
|
|
.order_by(func.random()) \
|
|
.limit(self.config.config_random_books)
|
|
else:
|
|
randm = false()
|
|
off = int(int(pagesize) * (page - 1))
|
|
query = self.session.query(database) \
|
|
.join(*join, isouter=True) \
|
|
.filter(db_filter) \
|
|
.filter(self.common_filters(allow_show_archived))
|
|
pagination = Pagination(page, pagesize,
|
|
len(query.all()))
|
|
entries = query.order_by(*order).offset(off).limit(pagesize).all()
|
|
for book in entries:
|
|
book = self.order_authors(book)
|
|
return entries, randm, pagination
|
|
|
|
# Orders all Authors in the list according to authors sort
|
|
def order_authors(self, entry):
|
|
sort_authors = entry.author_sort.split('&')
|
|
authors_ordered = list()
|
|
error = False
|
|
ids = [a.id for a in entry.authors]
|
|
for auth in sort_authors:
|
|
results = self.session.query(Authors).filter(Authors.sort == auth.lstrip().strip()).all()
|
|
# ToDo: How to handle not found authorname
|
|
if not len(results):
|
|
error = True
|
|
break
|
|
for r in results:
|
|
if r.id in ids:
|
|
authors_ordered.append(r)
|
|
if not error:
|
|
entry.authors = authors_ordered
|
|
return entry
|
|
|
|
def get_typeahead(self, database, query, replace=('', ''), tag_filter=true()):
|
|
query = query or ''
|
|
self.session.connection().connection.connection.create_function("lower", 1, lcase)
|
|
entries = self.session.query(database).filter(tag_filter). \
|
|
filter(func.lower(database.name).ilike("%" + query + "%")).all()
|
|
json_dumps = json.dumps([dict(name=r.name.replace(*replace)) for r in entries])
|
|
return json_dumps
|
|
|
|
def check_exists_book(self, authr, title):
|
|
self.session.connection().connection.connection.create_function("lower", 1, lcase)
|
|
q = list()
|
|
authorterms = re.split(r'\s*&\s*', authr)
|
|
for authorterm in authorterms:
|
|
q.append(Books.authors.any(func.lower(Authors.name).ilike("%" + authorterm + "%")))
|
|
|
|
return self.session.query(Books) \
|
|
.filter(and_(Books.authors.any(and_(*q)), func.lower(Books.title).ilike("%" + title + "%"))).first()
|
|
|
|
# read search results from calibre-database and return it (function is used for feed and simple search
|
|
def get_search_results(self, term, offset=None, order=None, limit=None):
|
|
order = order or [Books.sort]
|
|
pagination = None
|
|
term.strip().lower()
|
|
self.session.connection().connection.connection.create_function("lower", 1, lcase)
|
|
q = list()
|
|
authorterms = re.split("[, ]+", term)
|
|
for authorterm in authorterms:
|
|
q.append(Books.authors.any(func.lower(Authors.name).ilike("%" + authorterm + "%")))
|
|
result = self.session.query(Books).filter(self.common_filters(True)).filter(
|
|
or_(Books.tags.any(func.lower(Tags.name).ilike("%" + term + "%")),
|
|
Books.series.any(func.lower(Series.name).ilike("%" + term + "%")),
|
|
Books.authors.any(and_(*q)),
|
|
Books.publishers.any(func.lower(Publishers.name).ilike("%" + term + "%")),
|
|
func.lower(Books.title).ilike("%" + term + "%")
|
|
)).order_by(*order).all()
|
|
result_count = len(result)
|
|
if offset != None and limit != None:
|
|
offset = int(offset)
|
|
limit_all = offset + int(limit)
|
|
pagination = Pagination((offset / (int(limit)) + 1), limit, result_count)
|
|
else:
|
|
offset = 0
|
|
limit_all = result_count
|
|
|
|
ub.store_ids(result)
|
|
return result[offset:limit_all], result_count, pagination
|
|
|
|
# Creates for all stored languages a translated speaking name in the array for the UI
|
|
def speaking_language(self, languages=None):
|
|
from . import get_locale
|
|
|
|
if not languages:
|
|
languages = self.session.query(Languages) \
|
|
.join(books_languages_link) \
|
|
.join(Books) \
|
|
.filter(self.common_filters()) \
|
|
.group_by(text('books_languages_link.lang_code')).all()
|
|
for lang in languages:
|
|
try:
|
|
cur_l = LC.parse(lang.lang_code)
|
|
lang.name = cur_l.get_language_name(get_locale())
|
|
except UnknownLocaleError:
|
|
lang.name = _(isoLanguages.get(part3=lang.lang_code).name)
|
|
return languages
|
|
|
|
def update_title_sort(self, config, conn=None):
|
|
# user defined sort function for calibre databases (Series, etc.)
|
|
def _title_sort(title):
|
|
# calibre sort stuff
|
|
title_pat = re.compile(config.config_title_regex, re.IGNORECASE)
|
|
match = title_pat.search(title)
|
|
if match:
|
|
prep = match.group(1)
|
|
title = title[len(prep):] + ', ' + prep
|
|
return title.strip()
|
|
|
|
conn = conn or self.session.connection().connection.connection
|
|
conn.create_function("title_sort", 1, _title_sort)
|
|
|
|
@classmethod
|
|
def dispose(cls):
|
|
# global session
|
|
|
|
for inst in cls.instances:
|
|
old_session = inst.session
|
|
inst.session = None
|
|
if old_session:
|
|
try:
|
|
old_session.close()
|
|
except:
|
|
pass
|
|
if old_session.bind:
|
|
try:
|
|
old_session.bind.dispose()
|
|
except Exception:
|
|
pass
|
|
|
|
for attr in list(Books.__dict__.keys()):
|
|
if attr.startswith("custom_column_"):
|
|
setattr(Books, attr, None)
|
|
|
|
for db_class in cc_classes.values():
|
|
Base.metadata.remove(db_class.__table__)
|
|
cc_classes.clear()
|
|
|
|
for table in reversed(Base.metadata.sorted_tables):
|
|
name = table.key
|
|
if name.startswith("custom_column_") or name.startswith("books_custom_column_"):
|
|
if table is not None:
|
|
Base.metadata.remove(table)
|
|
|
|
def reconnect_db(self, config, app_db_path):
|
|
self.dispose()
|
|
self.engine.dispose()
|
|
self.setup_db(config, app_db_path)
|
|
|
|
|
|
def lcase(s):
|
|
try:
|
|
return unidecode.unidecode(s.lower())
|
|
except Exception as e:
|
|
log = logger.create()
|
|
log.debug_or_exception(e)
|
|
return s.lower()
|