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Sony T1: Fix caching behavior so detection of books in the library is more consistent.

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Also fixes a minor bug with direct editing of collections on the device.
This commit is contained in:
Kolenka 2011-10-08 18:17:33 -07:00
parent 372cc73c13
commit a2f2c3355c
1 changed files with 11 additions and 41 deletions
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52
src/calibre/devices/prst1/driver.py
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@ -84,10 +84,9 @@ class PRST1(USBMS):
prefix = self._card_a_prefix if oncard == 'carda' else self._main_prefix
# get the metadata cache
# Let parent driver get the books
self.booklist_class.rebuild_collections = self.rebuild_collections
bl = self.booklist_class(oncard, prefix, self.settings)
need_sync = self.parse_metadata_cache(bl, prefix, self.METADATA_CACHE)
bl = USBMS.books(self, oncard=oncard, end_session=end_session)
debug_print("SQLite DB Path: " + self.normalize_path(prefix + 'Sony_Reader/database/books.db'))
@ -108,47 +107,17 @@ class PRST1(USBMS):
for i, row in enumerate(cursor):
bl_collections.setdefault(row[0], [])
bl_collections[row[0]].append(row[1])
# Query books themselves
query = 'select _id, file_path, title, author, mime_type, modified_date, thumbnail, file_size ' \
'from books'
cursor.execute (query)
# make a dict cache of paths so the lookup in the loop below is faster.
bl_cache = {}
for idx,b in enumerate(bl):
bl_cache[b.lpath] = idx
changed = False
for i, row in enumerate(cursor):
#Book(prefix, bookId, lpath, title, author, mime, date, thumbnail_name, size=None, other=None)
thumbnail = row[6]
if thumbnail is not None:
thumbnail = self.normalize_path(prefix + row[6])
for idx,book in enumerate(bl):
query = 'select _id from books where file_path = ?'
t = (book.lpath,)
cursor.execute (query, t)
book = Book(row[0], prefix, row[1], row[2], row[3], row[4], row[5], thumbnail, row[7])
book.device_collections = bl_collections.get(row[0], None)
debug_print('Collections for ' + row[2] + ': ' + str(book.device_collections))
bl_cache[row[1]] = None
if bl.add_book(book, replace_metadata=True):
changed = True
# Remove books that are no longer in the filesystem. Cache contains
# indices into the booklist if book not in filesystem, None otherwise
# Do the operation in reverse order so indices remain valid
for idx in sorted(bl_cache.itervalues(), reverse=True):
if idx is not None:
changed = True
del bl[idx]
for i, row in enumerate(cursor):
book.device_collections = bl_collections.get(row[0], None)
cursor.close()
if changed:
if oncard == 'carda':
self.sync_booklists((None, bl, None))
else:
self.sync_booklists((bl, None, None))
return bl
def sync_booklists(self, booklists, end_session=True):
@ -269,7 +238,8 @@ class PRST1(USBMS):
for book in books:
if dbBooks.get(book.lpath, None) is None:
book.device_collections.append(collection)
if collection not in book.device_collections:
book.device_collections.append(collection)
query = 'insert into collections (collection_id, content_id) values (?,?)'
t = (dbCollections[collection], book.bookId)
cursor.execute(query, t)