Cutlery/calibre
1
0
Fork 0
mirror of https://github.com/kovidgoyal/calibre.git synced 2025-07-09 03:04:10 -04:00
Code Issues Packages Projects Releases Wiki Activity

More micro-optimizations

Browse Source
This commit is contained in:
Kovid Goyal 2013-07-22 13:49:21 +05:30
parent 98924814ad
commit ef50b1a823
1 changed files with 8 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/calibre/db/tables.py
View File

@ -94,10 +94,10 @@ class OneToOneTable(Table):
query = db.conn.execute('SELECT {0}, {1} FROM {2}'.format(idcol,
self.metadata['column'], self.metadata['table']))
if self.unserialize is None:
self.book_col_map = {row[0]:row[1] for row in query}
self.book_col_map = dict(query)
else:
us = self.unserialize
self.book_col_map = {row[0]:us(row[1]) for row in query}
self.book_col_map = {book_id:us(val) for book_id, val in query}
def remove_books(self, book_ids, db):
clean = set()
@ -117,11 +117,10 @@ class PathTable(OneToOneTable):
class SizeTable(OneToOneTable):
def read(self, db):
self.book_col_map = {}
for row in db.conn.execute(
query = db.conn.execute(
'SELECT books.id, (SELECT MAX(uncompressed_size) FROM data '
'WHERE data.book=books.id) FROM books'):
self.book_col_map[row[0]] = row[1]
'WHERE data.book=books.id) FROM books')
self.book_col_map = dict(query)
def update_sizes(self, size_map):
self.book_col_map.update(size_map)
@ -185,10 +184,10 @@ class ManyToOneTable(Table):
query = db.conn.execute('SELECT id, {0} FROM {1}'.format(
self.metadata['column'], self.metadata['table']))
if self.unserialize is None:
self.id_map = {row[0]:row[1] for row in query}
self.id_map = dict(query)
else:
us = self.unserialize
self.id_map = {row[0]:us(row[1]) for row in query}
self.id_map = {book_id:us(val) for book_id, val in query}
def read_maps(self, db):
for row in db.conn.execute(