def __add_book(self):
print("\n")
title = input("Introduceti titlul cartii: ")
author = input("Introduceti autorul cartii: ")
age = int(input("Introduceti anul publicarii cartii (aveti grija sa fie un numar ;): "))
price = float(input("Introduceti pretul cartii (aveti grija sa fie un numar ;): "))
new_book = Book(title, author, age, price)
res = self.__service.add_book(new_book)
if res == -1:
print("\nCartea exista deja!\n")
else:
print("\nCartea a fost adaugata cu succes!\n")
def publish_ebooks(wallet: WalletWithTxAnchor,
collection: Collection,
publish_n_books: int = 1,
max_books_per_block: int = 150,
skip_to_textno: int = 1):
"""
Publishes Gutenberg books for a certain Collection
:param wallet: Arweave wallet, used for signing and sending transactions
:param collection: Collection already existing in the permaweb. Books will be linked to it.
:param publish_n_books: Number of Gutenberg books to be published. Will skip those that have already been persisted.
:param max_books_per_block: Maximum number of books per block. Please check the README for further reference on what
a block represents.
:param skip_to_textno: Starts publishing Gutenberg books from a specific id
:raises Exception: If collection had not been signed, or sent
"""
if not collection.is_signed or not collection.is_sent:
raise Exception(
'Collection must already exist in the permaweb before you can publish'
)
preexisting_books = find_books_from_collection(collection.trusted_sources,
collection.id)
preexisting_textnos = _get_textno_set(preexisting_books)
top_block, books_top_block = _get_block_information(preexisting_books)
published_amount = 0
cur_id = skip_to_textno - 1
while published_amount < publish_n_books:
cur_id += 1
if cur_id in preexisting_textnos:
warnings.warn(
"Book '%d' already published for this collection. Skipping" %
cur_id)
continue
if not _is_public_domain(cur_id):
continue
if books_top_block > max_books_per_block:
top_block += 1
books_top_block = 0
try:
epub_uri = next(uri for uri in get_metadata('formaturi', cur_id)
if uri.endswith("epub.noimages"))
except StopIteration:
warnings.warn("Could not find epub for textno '%d'" % cur_id)
continue
ebook = Book(epub_uri=epub_uri,
wallet=wallet,
collection=collection,
block_number=top_block)
ebook.add_extra_tag(TAG_TEXTNO, str(cur_id))
for label in METADATA_ARGS:
metadata = get_metadata(label, cur_id)
decoded_metadata = frozenset(
[unidecode(metadata_field) for metadata_field in metadata])
ebook.add_metadata_tag(label, decoded_metadata)
print("... ready to publish textno '%d' (in block '%d')" %
(cur_id, top_block))
try:
ebook.sign()
ebook.send()
except UnicodeEncodeError as e:
warnings.warn(
"Encoding exception while trying to send texto '%d', skipping. Details: '%s'"
% (cur_id, str(e)))
warnings.warn(" Book metadata details: '%s'" % str(ebook.metadata))
continue
published_amount += 1
books_top_block += 1
print('Done publishing %d books' % published_amount)
def initialize_default_books(self):
self.__books.append(Book("Ion", "Liviu Rebreanu", 1920, 20))
self.__books.append(Book("Moara cu noroc", "Ioan Slavici", 1881, 50))
self.__books.append(
Book("Hronicul si cantecul varstelor", "Lucian Blaga", 1965, 120)),
self.__books.append(Book("Hanu Ancutei", "Mihail Sadoveanu", 1928, 37))
