parallel-library/cps/db.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

from sqlalchemy import *
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import *
import os
from cps import config
import re

#calibre sort stuff
title_pat = re.compile(config.TITLE_REGEX, re.IGNORECASE)
def title_sort(title):
    match = title_pat.search(title)
    if match:
        prep = match.group(1)
        title = title.replace(prep, '') + ', ' + prep
    return title.strip()


dbpath = os.path.join(config.DB_ROOT, "metadata.db")
engine = create_engine('sqlite:///{0}'.format(dbpath), echo=False)
conn = engine.connect()
conn.connection.create_function('title_sort', 1, title_sort)
Base = declarative_base()

books_authors_link = Table('books_authors_link', Base.metadata,
	Column('book', Integer, ForeignKey('books.id'), primary_key=True),
	Column('author', Integer, ForeignKey('authors.id'), primary_key=True)
	)

books_tags_link = Table('books_tags_link', Base.metadata,
	Column('book', Integer, ForeignKey('books.id'), primary_key=True),
	Column('tag', Integer, ForeignKey('tags.id'), primary_key=True)
	)

books_series_link = Table('books_series_link', Base.metadata,
	Column('book', Integer, ForeignKey('books.id'), primary_key=True),
	Column('series', Integer, ForeignKey('series.id'), primary_key=True)
	)

books_ratings_link = Table('books_ratings_link', Base.metadata,
	Column('book', Integer, ForeignKey('books.id'), primary_key=True),
	Column('rating', Integer, ForeignKey('ratings.id'), primary_key=True)
	)


class Comments(Base):
	__tablename__ = 'comments'

	id = Column(Integer, primary_key=True)
	text = Column(String)
	book = Column(Integer, ForeignKey('books.id'))

	def __init__(self, text, book):
		self.text = text
		self.book = book

	def __repr__(self):
		return u"<Comments({0})>".format(self.text)


class Tags(Base):
	__tablename__ = 'tags'

	id = Column(Integer, primary_key=True, autoincrement=True)
	name = Column(String)

	def __init__(self, name):
		self.name = name

	def __repr__(self):
		return u"<Tags('{0})>".format(self.name)

class Authors(Base):
	__tablename__ = 'authors'

	id = Column(Integer, primary_key=True)
	name = Column(String)
	sort = Column(String)
	link = Column(String)

	def __init__(self, name, sort, link):
		self.name = name
		self.sort = sort
		self.sort = link

	def __repr__(self):
		return u"<Authors('{0},{1}{2}')>".format(self.name, self.sort, self.link)

class Series(Base):
	__tablename__ = 'series'

	id = Column(Integer, primary_key=True)
	name = Column(String)
	sort = Column(String)

	def __init__(self, name, sort):
		self.name = name
		self.sort = sort

	def __repr__(self):
		return u"<Series('{0},{1}')>".format(self.name, self.sort)

class Ratings(Base):
	__tablename__ = 'ratings'

	id = Column(Integer, primary_key=True)
	rating = Column(Integer)

	def __init__(self,rating):
		self.rating = rating

	def __repr__(self):
		return u"<Ratings('{0}')>".format(self.rating)

class Data(Base):
	__tablename__ = 'data'

	id = Column(Integer, primary_key=True)
	book = Column(Integer, ForeignKey('books.id'))
	format = Column(String)
	uncompressed_size = Column(Integer)
	name = Column(String)

	def __init__(self, book, format, uncompressed_size, name):
		self.book = book
		self.format = format
		self.uncompressed_size = uncompressed_size
		self.name = name

	def __repr__(self):
		return u"<Data('{0},{1}{2}{3}')>".format(self.book, self.format, self.uncompressed_size, self.name)

class Books(Base):
	__tablename__ = 'books'

	id = Column(Integer,primary_key=True)
	title = Column(String)
	sort = Column(String)
	timestamp = Column(String)
	pubdate = Column(String)
	series_index = Column(String)
	last_modified = Column(String)
	path = Column(String)
	has_cover = Column(Integer)

	authors = relationship('Authors', secondary=books_authors_link, backref='books')
	tags = relationship('Tags', secondary=books_tags_link, backref='books')
	comments = relationship('Comments', backref='books')
	data = relationship('Data', backref='books')
	series = relationship('Series', secondary=books_series_link, backref='books')
	ratings = relationship('Ratings', secondary=books_ratings_link, backref='books')

	def __init__(self, title, sort, timestamp, pubdate, series_index, last_modified, path, has_cover, authors, tags):
		self.title = title
		self.sort = sort
		self.timestamp = timestamp
		self.pubdate = pubdate
		self.series_index = series_index
		self.last_modified = last_modified
		self.path = path
		self.has_cover = has_cover
		self.tags = tags


	def __repr__(self):
		return u"<Books('{0},{1}{2}{3}{4}{5}{6}{7}')>".format(self.title, self.sort, self.timestamp, self.pubdate, self.series_index, self.last_modified ,self.path, self.has_cover)



Base.metadata.create_all(engine)
Session = sessionmaker()
Session.configure(bind=engine)
session = Session()