#! /usr/bin/env python
-__all__ = ['Author', 'Book', 'Extension', 'Genre', 'Language',
- 'AuthorBook', 'BookGenre',
- 'init_db', 'insert_name', 'insert_author', 'update_counters',
- ]
-
+from __future__ import print_function
import os
from sqlobject import SQLObject, StringCol, UnicodeCol, IntCol, BoolCol, \
ForeignKey, DateCol, DatabaseIndex, RelatedJoin, \
connectionForURI, sqlhub, SQLObjectNotFound, dberrors
-from .config import ml_conf
-
-try:
- db_uri = ml_conf.get('database', 'URI')
-except:
- db_uri = None
-
-db_dirs = []
-if not db_uri:
- if 'XDG_CACHE_HOME' in os.environ:
- db_dirs.append(os.environ['XDG_CACHE_HOME'])
- home_cache = os.path.expanduser('~/.cache')
- if home_cache not in db_dirs:
- db_dirs.append(home_cache)
-
- for d in db_dirs:
- db_file = os.path.join(d, 'm_librarian.sqlite')
- if os.path.exists(db_file):
- break
- else:
- # octal; -rw-------;
- # make the database file/directory readable/writeable only by the user
- os.umask(0066)
- db_dir = db_dirs[0]
- try:
- os.makedirs(db_dir)
- except OSError: # Perhaps already exists
- pass
- db_file = os.path.join(db_dir, 'm_librarian.sqlite')
-
- db_uri = 'sqlite://%s' % db_file.replace(os.sep, '/')
-
+from .compat import string_type
+from .config import get_config
-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")
+__all__ = ['Author', 'Book', 'Extension', 'Genre', 'Language',
+ 'AuthorBook', 'BookGenre', 'open_db', 'init_db',
+ 'insert_name', 'insert_author', 'update_counters',
+ ]
class Author(SQLObject):
books = RelatedJoin('Book', otherColumn='book_id',
intermediateTable='author_book',
createRelatedTable=False)
+
+ @property
+ def fullname(self):
+ fullnames = filter(None, (self.surname, self.name, self.misc_name))
+ return ' '.join(fullnames)
+
full_name_idx = DatabaseIndex(surname, name, misc_name, unique=True)
count_idx = DatabaseIndex(count)
title_idx = DatabaseIndex(title)
series_idx = DatabaseIndex(series)
ser_no_idx = DatabaseIndex(ser_no)
+ archive_idx = DatabaseIndex(archive)
archive_file_idx = DatabaseIndex(archive, file, unique=True)
file_idx = DatabaseIndex(file)
size_idx = DatabaseIndex(size)
class Extension(SQLObject):
- name = StringCol(notNull=True, unique=True)
+ name = UnicodeCol(notNull=True, unique=True)
count = IntCol(notNull=True)
count_idx = DatabaseIndex(count)
class Genre(SQLObject):
- name = StringCol(notNull=True, unique=True)
+ name = UnicodeCol(notNull=True, unique=True)
title = UnicodeCol(notNull=True)
count = IntCol(notNull=True)
books = RelatedJoin('Book', otherColumn='book_id',
class Language(SQLObject):
- name = StringCol(notNull=True, unique=True)
+ name = UnicodeCol(notNull=True, unique=True)
count = IntCol(notNull=True)
count_idx = DatabaseIndex(count)
+def _find_sqlite_db_dirs_posix():
+ db_dirs = []
+ if 'XDG_CACHE_HOME' in os.environ:
+ db_dirs.append(os.environ['XDG_CACHE_HOME'])
+ home_cache = os.path.expanduser('~/.cache')
+ if home_cache not in db_dirs:
+ db_dirs.append(home_cache)
+ return db_dirs
+
+
+def find_sqlite_db_dirs():
+ if os.name == 'posix':
+ return _find_sqlite_db_dirs_posix()
+ raise OSError("Unknow OS")
+
+
+def find_sqlite_dburi(db_dirs=None):
+ if db_dirs is None:
+ db_dirs = find_sqlite_db_dirs()
+ for d in db_dirs:
+ db_file = os.path.join(d, 'm_librarian.sqlite')
+ if os.path.exists(db_file):
+ break
+ else:
+ # octal; -rw-------;
+ # make the database file/directory readable/writeable only by the user
+ os.umask(0o66)
+ db_dir = db_dirs[0]
+ try:
+ os.makedirs(db_dir)
+ except OSError: # Perhaps already exists
+ pass
+ db_file = os.path.join(db_dir, 'm_librarian.sqlite')
+
+ return 'sqlite://%s' % db_file.replace(os.sep, '/')
+
+
+def open_db(db_uri=None):
+ if db_uri is None:
+ try:
+ db_uri = get_config().get('database', 'URI')
+ except Exception:
+ db_uri = find_sqlite_dburi()
+
+ if '://' not in db_uri:
+ db_uri = 'sqlite://' + os.path.abspath(db_uri).replace(os.sep, '/')
+
+ sqlhub.processConnection = connection = connectionForURI(db_uri)
+
+ if connection.dbName == 'sqlite':
+ def lower(s):
+ if isinstance(s, string_type):
+ return s.lower()
+ return s
+
+ sqlite = connection.module
+
+ class MLConnection(sqlite.Connection):
+ def __init__(self, *args, **kwargs):
+ super(MLConnection, self).__init__(*args, **kwargs)
+ self.create_function('lower', 1, lower)
+
+ # This hack must be done at the very beginning, before the first query
+ connection._connOptions['factory'] = MLConnection
+
+ # 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")
+
+
def init_db():
try:
Book.select()[0]
author.count = AuthorBook.select(AuthorBook.q.author == author).count()
for ext in Extension.select():
- ext.count = Book.select(Book.q.extension == ext.name).count()
+ ext.count = Book.select(Book.q.extension == ext.id).count()
for genre in Genre.select():
genre.count = BookGenre.select(BookGenre.q.genre == genre).count()
for language in Language.select():
- language.count = Book.select(Book.q.language == language.name).count()
+ language.count = Book.select(Book.q.language == language.id).count()
def test():
- print "DB dirs:", db_dirs
- if db_uri:
- print "DB URI:", db_uri
+ db_dirs = find_sqlite_db_dirs()
+ print("DB dirs:", db_dirs)
+ print("DB URI:", find_sqlite_dburi())
+
if __name__ == '__main__':
test()
projects / m_librarian.git / blobdiff