#! /usr/bin/env python
__all__ = ['Author', 'Book', 'Extension', 'Genre', 'Language',
- 'init_db', 'insert_name',
+ 'AuthorBook', 'BookGenre',
+ 'init_db', 'insert_name', 'update_counters',
]
import os
from sqlobject import SQLObject, StringCol, UnicodeCol, IntCol, BoolCol, \
- ForeignKey, DateCol, RelatedJoin, \
+ ForeignKey, DateCol, DatabaseIndex, RelatedJoin, \
connectionForURI, sqlhub, SQLObjectNotFound, dberrors
from .config import ml_conf
db_uri = 'sqlite://%s' % db_file.replace(os.sep, '/')
-sqlhub.processConnection = connectionForURI(db_uri)
+
+sqlhub.processConnection = connection = connectionForURI(db_uri)
+
+if connection.dbName == 'sqlite':
+ # Speedup SQLite connection
+ connection.query("PRAGMA synchronous=OFF")
+ connection.query("PRAGMA count_changes=OFF")
+ connection.query("PRAGMA journal_mode=MEMORY")
+ connection.query("PRAGMA temp_store=MEMORY")
class Author(SQLObject):
- name = UnicodeCol(unique=True)
- count = IntCol()
- books = RelatedJoin('Book', otherColumn='book_id')
+ surname = UnicodeCol(notNull=True)
+ name = UnicodeCol(notNull=True)
+ misc_name = UnicodeCol(notNull=True)
+ count = IntCol(notNull=True)
+ books = RelatedJoin('Book', otherColumn='book_id',
+ intermediateTable='author_book',
+ createRelatedTable=False)
+ full_name_idx = DatabaseIndex(surname, name, misc_name, unique=True)
+ count_idx = DatabaseIndex(count)
+
+
+class AuthorBook(SQLObject):
+ class sqlmeta:
+ table = "author_book"
+ author = ForeignKey('Author', notNull=True, cascade=True)
+ book = ForeignKey('Book', notNull=True, cascade=True)
+ author_idx = DatabaseIndex(author)
+ book_idx = DatabaseIndex(book)
+ main_idx = DatabaseIndex(author, book, unique=True)
class Book(SQLObject):
- authors = RelatedJoin('Author')
- genres = RelatedJoin('Genre')
- title = UnicodeCol()
- series = UnicodeCol()
+ authors = RelatedJoin('Author',
+ intermediateTable='author_book',
+ createRelatedTable=False)
+ genres = RelatedJoin('Genre',
+ intermediateTable='book_genre',
+ createRelatedTable=False)
+ title = UnicodeCol(notNull=True)
+ series = UnicodeCol(notNull=True)
ser_no = IntCol()
- archive = StringCol()
- file = StringCol()
- size = IntCol()
- lib_id = StringCol()
- deleted = BoolCol()
- extension = ForeignKey('Extension')
- date = DateCol()
+ archive = StringCol(notNull=True)
+ file = StringCol(notNull=True)
+ size = IntCol(notNull=True)
+ lib_id = StringCol(notNull=True)
+ deleted = BoolCol(notNull=True)
+ extension = ForeignKey('Extension', notNull=True)
+ date = DateCol(notNull=True)
language = ForeignKey('Language')
+ title_idx = DatabaseIndex(title)
+ series_idx = DatabaseIndex(series)
+ ser_no_idx = DatabaseIndex(ser_no)
+ archive_file_idx = DatabaseIndex(archive, file, unique=True)
+ file_idx = DatabaseIndex(file)
+ size_idx = DatabaseIndex(size)
+ deleted_idx = DatabaseIndex(deleted)
+ extension_idx = DatabaseIndex(extension)
+ date_idx = DatabaseIndex(date)
+ language_idx = DatabaseIndex(language)
+
+
+class BookGenre(SQLObject):
+ class sqlmeta:
+ table = "book_genre"
+ book = ForeignKey('Book', notNull=True, cascade=True)
+ genre = ForeignKey('Genre', notNull=True, cascade=True)
+ book_idx = DatabaseIndex(book)
+ genre_idx = DatabaseIndex(genre)
+ main_idx = DatabaseIndex(book, genre, unique=True)
class Extension(SQLObject):
- name = StringCol(unique=True)
- count = IntCol()
+ name = StringCol(notNull=True, unique=True)
+ count = IntCol(notNull=True)
+ count_idx = DatabaseIndex(count)
class Genre(SQLObject):
- name = StringCol(unique=True)
- title = UnicodeCol()
- count = IntCol()
- books = RelatedJoin('Book', otherColumn='book_id')
+ name = StringCol(notNull=True, unique=True)
+ title = UnicodeCol(notNull=True)
+ count = IntCol(notNull=True)
+ books = RelatedJoin('Book', otherColumn='book_id',
+ intermediateTable='book_genre',
+ createRelatedTable=False)
+ title_idx = DatabaseIndex(title)
+ count_idx = DatabaseIndex(count)
class Language(SQLObject):
- name = StringCol(unique=True)
- count = IntCol()
+ name = StringCol(notNull=True, unique=True)
+ count = IntCol(notNull=True)
+ count_idx = DatabaseIndex(count)
def init_db():
except IndexError: # Table exists but is empty
return
except dberrors.Error:
- for table in Author, Extension, Genre, Language, Book:
+ for table in Author, Extension, Genre, Language, Book, \
+ AuthorBook, BookGenre:
table.createTable()
else:
return
-def insert_name(table, name):
+def insert_name(table, name, **kw):
try:
return table.byName(name)
except SQLObjectNotFound:
- return table(name=name, count=0)
+ return table(name=name, count=0, **kw)
+
+
+def update_counters():
+ for author in Author.select():
+ author.count = len(author.books)
+
+ for ext in Extension.select():
+ ext.count = Book.select(Book.q.extension == ext.name).count()
+
+ for genre in Genre.select():
+ genre.count = len(genre.books)
+
+ for language in Language.select():
+ language.count = Book.select(Book.q.language == language.name).count()
def test():