#! /usr/bin/env python
+__all__ = ['Author', 'Book', 'Extension', 'Genre', 'Language',
+ 'init_db', 'insert_name',
+ ]
+
import os
-from sqlobject import SQLObject, StringCol, UnicodeCol, IntCol, \
- connectionForURI, sqlhub
+from sqlobject import SQLObject, StringCol, UnicodeCol, IntCol, BoolCol, \
+ ForeignKey, DateCol, RelatedJoin, \
+ connectionForURI, sqlhub, SQLObjectNotFound, dberrors
from .config import ml_conf
try:
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, '/')
+
+ db_uri = 'sqlite://%s' % db_file.replace(os.sep, '/')
sqlhub.processConnection = connectionForURI(db_uri)
class Author(SQLObject):
- name = UnicodeCol()
+ name = UnicodeCol(unique=True)
count = IntCol()
+ books = RelatedJoin('Book', otherColumn='book_id')
class Book(SQLObject):
- name = UnicodeCol()
+ authors = RelatedJoin('Author')
+ genres = RelatedJoin('Genre')
+ title = UnicodeCol()
+ series = UnicodeCol()
+ ser_no = IntCol()
+ archive = StringCol()
+ file = StringCol()
+ size = IntCol()
+ lib_id = StringCol()
+ deleted = BoolCol()
+ extension = ForeignKey('Extension')
+ date = DateCol()
+ language = ForeignKey('Language')
class Extension(SQLObject):
- name = StringCol()
+ name = StringCol(unique=True)
count = IntCol()
+class Genre(SQLObject):
+ name = StringCol(unique=True)
+ title = UnicodeCol()
+ count = IntCol()
+ books = RelatedJoin('Book', otherColumn='book_id')
+
+
class Language(SQLObject):
- name = StringCol()
+ name = StringCol(unique=True)
count = IntCol()
-if __name__ == '__main__':
+def init_db():
+ try:
+ Book.select()[0]
+ except IndexError: # Table exists but is empty
+ return
+ except dberrors.Error:
+ for table in Author, Extension, Genre, Language, Book:
+ table.createTable()
+ else:
+ return
+
+
+def insert_name(table, name):
+ try:
+ return table.byName(name)
+ except SQLObjectNotFound:
+ return table(name=name, count=0)
+
+
+def test():
print "DB dirs:", db_dirs
if db_uri:
print "DB URI:", db_uri
+
+if __name__ == '__main__':
+ test()