def task_update_catalog(catalog):
catalog_url = catalog.key().name()
last_check = Database.LastCheck.get_by_key_name(catalog_url)
if last_check:
if last_check.is_more_minutes(10):
last_check.put()
else:
return False
else:
last_check = Database.LastCheck.get_or_insert(catalog_url)
# 开始更新
new_catalog_info = BookParser.get_data(catalog_url)
if (new_catalog_info['chapter_url_list'] != catalog.chapter_url_list) and (len(new_catalog_info['chapter_url_list'])>0):
# 更新最后更新时间
new_catalog_info.update( BookParser.get_data(catalog.cover_url) )
catalog.put_info(new_catalog_info)
catalog.update_bookmarks()
return True
else:
return False
def task_get_chapter(url, catalog, reload = False):
if not url in catalog.chapter_url_list:
return 'Error: The url does not exist!'
chapter_url = catalog.chapter_url_prefix + url
chapter = Database.Chapter.get_or_insert(chapter_url, catalog_ref = catalog)
if chapter:
if reload or (not chapter.content_list) or (chapter.content_type != 'text'):
chapter_info = BookParser.get_data(chapter_url)
chapter.put_info(chapter_info)
return chapter
else:
return "Error: Can't get the chapter!"
def task_add_book(user_info, url):
if user_info == None:
return 'Error: User is not correct!'
user = user_info['user']
(book_info, parser) = BookParser.get_parser(url)
if book_info == None:
return 'Error: URL is not supported!'
url_type = book_info['url_type']
# 首先加入书页信息，获取必备的数据
if book_info['cover_url']:
book_info.update( BookParser.get_data(book_info['cover_url']) )
# 必须有作者，标题，目录页，章节地址前缀
# 如果没有这些就没法构造 Book 和 Catalog
if not ( book_info.has_key('author') and
book_info.has_key('title') and
book_info.has_key('catalog_url') and
book_info.has_key('chapter_url_prefix') ):
return 'Error: The necessary information is not complete!' + '<br />' + str(book_info)
author = book_info['author']
title = book_info['title']
catalog_url = book_info['catalog_url']
# Book
book_key_name = Database.generate_book_key_name(author, title)
book = Database.Book.get_or_insert(book_key_name)
# Catalog
catalog_key_name = catalog_url
catalog = Database.Catalog.get_or_insert(catalog_key_name, book_ref = book)
last_check = Database.LastCheck.get_or_insert(catalog_url)
# 判断是否需要重新获取目录
if not book_info['last_url'] in catalog.chapter_url_list: # 包括了catalog 是新生成的，即使last_url是None
# 获取目录
book_info.update( BookParser.get_data(catalog_url) )
catalog.put_info(book_info)
last_check.put()
# 用户想要添加的章节
curr_url = None
# 具体章节
if url_type == 'chapter':
curr_url = url
# 书页
elif url_type == 'cover':
if book_info.has_key('last_url'):
curr_url = book_info['last_url']
# 目录
elif url_type == 'catalog':
curr_index = catalog.find_first_chapter_index()
if curr_index != None:
curr_url = catalog.chapter_url_list[curr_index]
bookmark = Database.Bookmark(user_ref = user, book_ref = book, catalog_ref = catalog)
bookmark.update_info( user_ref = user, book_ref = book, catalog_ref = catalog, curr_url = curr_url)
