Source code for m_librarian.glst
#! /usr/bin/env python
from __future__ import print_function
import codecs
import os
from sqlobject import sqlhub, SQLObjectNotFound
from .db import Genre
__all__ = ['import_glst']
def parse_glst_file(glst_filename):
glst_file = codecs.open(glst_filename, 'r', 'utf-8')
try:
for line in glst_file:
line = line.strip()
if not line:
continue
if line[0] == '#':
continue
parts = line.split(None, 1)
try:
name, title = parts[1].split(';', 1)
except (IndexError, ValueError):
continue
yield name, title
finally:
glst_file.close()
def import_glst_file(glst_filename):
old = new = 0
for name, title in parse_glst_file(glst_filename):
try:
Genre.byName(name)
except SQLObjectNotFound:
Genre(name=name, title=title, count=0)
new += 1
else:
old += 1
return old, new
def _import_glst():
ml_dir = os.path.dirname(__file__)
old_fb2, new_fb2 = import_glst_file(
os.path.join(ml_dir, 'glst', 'genres_fb2.glst'))
old_nonfb2, new_nonfb2 = import_glst_file(
os.path.join(ml_dir, 'glst', 'genres_nonfb2.glst'))
connection = sqlhub.processConnection
if connection.dbName == 'postgres':
connection.query("VACUUM %s" % Genre.sqlmeta.table)
return old_fb2 + old_nonfb2, new_fb2 + new_nonfb2
[docs]def import_glst():
return sqlhub.doInTransaction(_import_glst)
connection = sqlhub.processConnection
if connection.dbName == 'sqlite':
connection.query("VACUUM")
def test():
ml_dir = os.path.dirname(__file__)
print(parse_glst_file(os.path.join(ml_dir, 'glst', 'genres_fb2.glst')))
if __name__ == '__main__':
test()