442 lines
15 KiB
Python
Executable File
442 lines
15 KiB
Python
Executable File
# -*- 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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from sqlalchemy import create_engine
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from sqlalchemy import Table, Column, ForeignKey
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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.ext.declarative import declarative_base
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session = None
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cc_exceptions = ['datetime', 'comments', 'composite', 'series']
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cc_classes = {}
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engine = None
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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)
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val = Column(String)
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book = Column(Integer, ForeignKey('books.id'))
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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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if self.type == "amazon":
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return u"Amazon"
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elif self.type == "isbn":
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return u"ISBN"
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elif self.type == "doi":
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return u"DOI"
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elif self.type == "goodreads":
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return u"Goodreads"
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elif self.type == "google":
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return u"Google Books"
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elif self.type == "kobo":
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return u"Kobo"
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if self.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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if self.type == "amazon":
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return u"https://amzn.com/{0}".format(self.val)
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elif self.type == "isbn":
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return u"http://www.worldcat.org/isbn/{0}".format(self.val)
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elif self.type == "doi":
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return u"http://dx.doi.org/{0}".format(self.val)
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elif self.type == "goodreads":
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return u"http://www.goodreads.com/book/show/{0}".format(self.val)
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elif self.type == "douban":
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return u"https://book.douban.com/subject/{0}".format(self.val)
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elif self.type == "google":
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return u"https://books.google.com/books?id={0}".format(self.val)
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elif self.type == "kobo":
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return u"https://www.kobo.com/ebook/{0}".format(self.val)
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elif self.type == "lubimyczytac":
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return u" http://lubimyczytac.pl/ksiazka/{0}".format(self.val)
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elif self.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)
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book = Column(Integer, ForeignKey('books.id'))
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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 __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)
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def __init__(self, name):
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self.name = 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)
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sort = Column(String)
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link = Column(String)
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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 __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)
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sort = Column(String)
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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 __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)
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def __init__(self, rating):
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self.rating = 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)
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def __init__(self, lang_code):
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self.lang_code = 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)
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sort = Column(String)
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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 __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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id = Column(Integer, primary_key=True)
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book = Column(Integer, ForeignKey('books.id'))
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format = Column(String)
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uncompressed_size = Column(Integer)
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name = Column(String)
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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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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 = "0101-01-01 00:00:00+00:00"
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id = Column(Integer, primary_key=True)
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title = Column(String)
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sort = Column(String)
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author_sort = Column(String)
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timestamp = Column(TIMESTAMP)
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pubdate = Column(String)
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series_index = Column(String)
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last_modified = Column(TIMESTAMP)
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path = Column(String)
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has_cover = Column(Integer)
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uuid = Column(String)
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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
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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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def update_title_sort(config, conn=None):
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# user defined sort function for calibre databases (Series, etc.)
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def _title_sort(title):
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# calibre sort stuff
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title_pat = re.compile(config.config_title_regex, re.IGNORECASE)
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match = title_pat.search(title)
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if match:
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prep = match.group(1)
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title = title.replace(prep, '') + ', ' + prep
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return title.strip()
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conn = conn or session.connection().connection.connection
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conn.create_function("title_sort", 1, _title_sort)
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def setup_db(config):
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dispose()
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global engine
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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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engine = create_engine('sqlite:///{0}'.format(dbpath),
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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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conn = engine.connect()
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except:
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config.invalidate()
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return False
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config.db_configured = True
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update_title_sort(config, conn.connection)
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# conn.connection.create_function('lower', 1, lcase)
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# conn.connection.create_function('upper', 1, ucase)
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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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books_custom_column_links[row.id] = Table('books_custom_column_' + str(row.id) + '_link', Base.metadata,
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Column('book', Integer, ForeignKey('books.id'),
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primary_key=True),
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Column('value', Integer,
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ForeignKey('custom_column_' + str(row.id) + '.id'),
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primary_key=True)
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)
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cc_ids.append([row.id, row.datatype])
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if row.datatype == 'bool':
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ccdict = {'__tablename__': 'custom_column_' + str(row.id),
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'id': Column(Integer, primary_key=True),
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'book': Column(Integer, ForeignKey('books.id')),
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'value': Column(Boolean)}
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elif row.datatype == 'int':
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ccdict = {'__tablename__': 'custom_column_' + str(row.id),
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'id': Column(Integer, primary_key=True),
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'book': Column(Integer, ForeignKey('books.id')),
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'value': Column(Integer)}
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elif row.datatype == 'float':
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ccdict = {'__tablename__': 'custom_column_' + str(row.id),
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'id': Column(Integer, primary_key=True),
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'book': Column(Integer, ForeignKey('books.id')),
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'value': Column(Float)}
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else:
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ccdict = {'__tablename__': 'custom_column_' + str(row.id),
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'id': Column(Integer, primary_key=True),
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'value': Column(String)}
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cc_classes[row.id] = type(str('Custom_Column_' + str(row.id)), (Base,), ccdict)
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for cc_id in cc_ids:
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if (cc_id[1] == 'bool') or (cc_id[1] == 'int') or (cc_id[1] == 'float'):
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setattr(Books, 'custom_column_' + str(cc_id[0]), relationship(cc_classes[cc_id[0]],
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primaryjoin=(
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Books.id == cc_classes[cc_id[0]].book),
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backref='books'))
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else:
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setattr(Books, 'custom_column_' + str(cc_id[0]), relationship(cc_classes[cc_id[0]],
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secondary=books_custom_column_links[cc_id[0]],
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backref='books'))
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global session
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Session = scoped_session(sessionmaker(autocommit=False,
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autoflush=False,
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bind=engine))
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session = Session()
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return True
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def dispose():
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global session
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old_session = session
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session = None
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if old_session:
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try: old_session.close()
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except: pass
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if old_session.bind:
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try: old_session.bind.dispose()
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except: pass
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for attr in list(Books.__dict__.keys()):
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if attr.startswith("custom_column_"):
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setattr(Books, attr, None)
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for db_class in cc_classes.values():
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Base.metadata.remove(db_class.__table__)
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cc_classes.clear()
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for table in reversed(Base.metadata.sorted_tables):
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name = table.key
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if name.startswith("custom_column_") or name.startswith("books_custom_column_"):
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if table is not None:
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Base.metadata.remove(table)
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def reconnect_db(config):
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session.close()
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engine.dispose()
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setup_db(config)
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