# -*- coding: utf-8 -*-
# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
# Copyright (C) 2018-2019 OzzieIsaacs, cervinko, jkrehm, bodybybuddha, ok11,
# andy29485, idalin, Kyosfonica, wuqi, Kennyl, lemmsh,
# falgh1, grunjol, csitko, ytils, xybydy, trasba, vrabe,
# ruben-herold, marblepebble, JackED42, SiphonSquirrel,
# apetresc, nanu-c, mutschler
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see .
import os
from datetime import datetime
import json
from shutil import copyfile
from uuid import uuid4
from markupsafe import escape, Markup # dependency of flask
from functools import wraps
# from lxml.etree import ParserError
#try:
# # at least bleach 6.0 is needed -> incomplatible change from list arguments to set arguments
# from bleach import clean_text as clean_html
# BLEACH = True
#except ImportError:
# try:
# BLEACH = False
# from nh3 import clean as clean_html
# except ImportError:
# try:
# BLEACH = False
# from lxml.html.clean import clean_html
# except ImportError:
# clean_html = None
from flask import Blueprint, request, flash, redirect, url_for, abort, Response
from flask_babel import gettext as _
from flask_babel import lazy_gettext as N_
from flask_babel import get_locale
from flask_login import current_user, login_required
from sqlalchemy.exc import OperationalError, IntegrityError, InterfaceError
from sqlalchemy.orm.exc import StaleDataError
from sqlalchemy.sql.expression import func
from . import constants, logger, isoLanguages, gdriveutils, uploader, helper, kobo_sync_status
from .clean_html import clean_string
from . import config, ub, db, calibre_db
from .services.worker import WorkerThread
from .tasks.upload import TaskUpload
from .render_template import render_title_template
from .usermanagement import login_required_if_no_ano
from .kobo_sync_status import change_archived_books
from .redirect import get_redirect_location
editbook = Blueprint('edit-book', __name__)
log = logger.create()
def upload_required(f):
@wraps(f)
def inner(*args, **kwargs):
if current_user.role_upload():
return f(*args, **kwargs)
abort(403)
return inner
def edit_required(f):
@wraps(f)
def inner(*args, **kwargs):
if current_user.role_edit() or current_user.role_admin():
return f(*args, **kwargs)
abort(403)
return inner
@editbook.route("/ajax/delete/", methods=["POST"])
@login_required
def delete_book_from_details(book_id):
return Response(delete_book_from_table(book_id, "", True), mimetype='application/json')
@editbook.route("/delete/", defaults={'book_format': ""}, methods=["POST"])
@editbook.route("/delete//", methods=["POST"])
@login_required
def delete_book_ajax(book_id, book_format):
return delete_book_from_table(book_id, book_format, False, request.form.to_dict().get('location', ""))
@editbook.route("/admin/book/", methods=['GET'])
@login_required_if_no_ano
@edit_required
def show_edit_book(book_id):
return render_edit_book(book_id)
@editbook.route("/admin/book/", methods=['POST'])
@login_required_if_no_ano
@edit_required
def edit_book(book_id):
modify_date = False
edit_error = False
# create the function for sorting...
calibre_db.update_title_sort(config)
book = calibre_db.get_filtered_book(book_id, allow_show_archived=True)
# Book not found
if not book:
flash(_("Oops! Selected book is unavailable. File does not exist or is not accessible"),
category="error")
return redirect(url_for("web.index"))
to_save = request.form.to_dict()
try:
# Update folder of book on local disk
edited_books_id = None
title_author_error = None
# handle book title change
title_change = handle_title_on_edit(book, to_save["book_title"])
# handle book author change
input_authors, author_change, renamed = handle_author_on_edit(book, to_save["author_name"])
if author_change or title_change:
edited_books_id = book.id
modify_date = True
title_author_error = helper.update_dir_structure(edited_books_id,
config.get_book_path(),
input_authors[0],
renamed_author=renamed)
if title_author_error:
flash(title_author_error, category="error")
calibre_db.session.rollback()
book = calibre_db.get_filtered_book(book_id, allow_show_archived=True)
# handle upload other formats from local disk
meta = upload_single_file(request, book, book_id)
# only merge metadata if file was uploaded and no error occurred (meta equals not false or none)
if meta:
merge_metadata(to_save, meta)
# handle upload covers from local disk
cover_upload_success = upload_cover(request, book)
if cover_upload_success:
book.has_cover = 1
modify_date = True
# upload new covers or new file formats to google drive
if config.config_use_google_drive:
gdriveutils.updateGdriveCalibreFromLocal()
if to_save.get("cover_url", None):
if not current_user.role_upload():
edit_error = True
flash(_("User has no rights to upload cover"), category="error")
if to_save["cover_url"].endswith('/static/generic_cover.jpg'):
book.has_cover = 0
else:
result, error = helper.save_cover_from_url(to_save["cover_url"].strip(), book.path)
if result is True:
book.has_cover = 1
modify_date = True
helper.replace_cover_thumbnail_cache(book.id)
else:
flash(error, category="error")
# Add default series_index to book
modify_date |= edit_book_series_index(to_save["series_index"], book)
# Handle book comments/description
modify_date |= edit_book_comments(Markup(to_save['description']).unescape(), book)
# Handle identifiers
input_identifiers = identifier_list(to_save, book)
modification, warning = modify_identifiers(input_identifiers, book.identifiers, calibre_db.session)
if warning:
flash(_("Identifiers are not Case Sensitive, Overwriting Old Identifier"), category="warning")
modify_date |= modification
# Handle book tags
modify_date |= edit_book_tags(to_save['tags'], book)
# Handle book series
modify_date |= edit_book_series(to_save["series"], book)
# handle book publisher
modify_date |= edit_book_publisher(to_save['publisher'], book)
# handle book languages
try:
modify_date |= edit_book_languages(to_save['languages'], book)
except ValueError as e:
flash(str(e), category="error")
edit_error = True
# handle book ratings
modify_date |= edit_book_ratings(to_save, book)
# handle cc data
modify_date |= edit_all_cc_data(book_id, book, to_save)
if to_save.get("pubdate", None):
try:
book.pubdate = datetime.strptime(to_save["pubdate"], "%Y-%m-%d")
except ValueError as e:
book.pubdate = db.Books.DEFAULT_PUBDATE
flash(str(e), category="error")
edit_error = True
else:
book.pubdate = db.Books.DEFAULT_PUBDATE
if modify_date:
book.last_modified = datetime.utcnow()
kobo_sync_status.remove_synced_book(edited_books_id, all=True)
calibre_db.set_metadata_dirty(book.id)
calibre_db.session.merge(book)
calibre_db.session.commit()
if config.config_use_google_drive:
gdriveutils.updateGdriveCalibreFromLocal()
if meta is not False \
and edit_error is not True \
and title_author_error is not True \
and cover_upload_success is not False:
flash(_("Metadata successfully updated"), category="success")
if "detail_view" in to_save:
return redirect(url_for('web.show_book', book_id=book.id))
else:
return render_edit_book(book_id)
except ValueError as e:
log.error_or_exception("Error: {}".format(e))
calibre_db.session.rollback()
flash(str(e), category="error")
return redirect(url_for('web.show_book', book_id=book.id))
except (OperationalError, IntegrityError, StaleDataError, InterfaceError) as e:
log.error_or_exception("Database error: {}".format(e))
calibre_db.session.rollback()
flash(_("Oops! Database Error: %(error)s.", error=e.orig if hasattr(e, "orig") else e), category="error")
return redirect(url_for('web.show_book', book_id=book.id))
except Exception as ex:
log.error_or_exception(ex)
calibre_db.session.rollback()
flash(_("Error editing book: {}".format(ex)), category="error")
return redirect(url_for('web.show_book', book_id=book.id))
@editbook.route("/upload", methods=["POST"])
@login_required_if_no_ano
@upload_required
def upload():
if not config.config_uploading:
abort(404)
if request.method == 'POST' and 'btn-upload' in request.files:
for requested_file in request.files.getlist("btn-upload"):
try:
modify_date = False
# create the function for sorting...
calibre_db.update_title_sort(config)
calibre_db.session.connection().connection.connection.create_function('uuid4', 0, lambda: str(uuid4()))
meta, error = file_handling_on_upload(requested_file)
if error:
return error
db_book, input_authors, title_dir, renamed_authors = create_book_on_upload(modify_date, meta)
# Comments need book id therefore only possible after flush
modify_date |= edit_book_comments(Markup(meta.description).unescape(), db_book)
book_id = db_book.id
title = db_book.title
if config.config_use_google_drive:
helper.upload_new_file_gdrive(book_id,
input_authors[0],
renamed_authors,
title,
title_dir,
meta.file_path,
meta.extension.lower())
else:
error = helper.update_dir_structure(book_id,
config.get_book_path(),
input_authors[0],
meta.file_path,
title_dir + meta.extension.lower(),
renamed_author=renamed_authors)
move_coverfile(meta, db_book)
if modify_date:
calibre_db.set_metadata_dirty(book_id)
# save data to database, reread data
calibre_db.session.commit()
if config.config_use_google_drive:
gdriveutils.updateGdriveCalibreFromLocal()
if error:
flash(error, category="error")
link = '{}'.format(url_for('web.show_book', book_id=book_id), escape(title))
upload_text = N_("File %(file)s uploaded", file=link)
WorkerThread.add(current_user.name, TaskUpload(upload_text, escape(title)))
helper.add_book_to_thumbnail_cache(book_id)
if len(request.files.getlist("btn-upload")) < 2:
if current_user.role_edit() or current_user.role_admin():
resp = {"location": url_for('edit-book.show_edit_book', book_id=book_id)}
return Response(json.dumps(resp), mimetype='application/json')
else:
resp = {"location": url_for('web.show_book', book_id=book_id)}
return Response(json.dumps(resp), mimetype='application/json')
except (OperationalError, IntegrityError, StaleDataError) as e:
calibre_db.session.rollback()
log.error_or_exception("Database error: {}".format(e))
flash(_("Oops! Database Error: %(error)s.", error=e.orig if hasattr(e, "orig") else e),
category="error")
return Response(json.dumps({"location": url_for("web.index")}), mimetype='application/json')
@editbook.route("/admin/book/convert/", methods=['POST'])
@login_required_if_no_ano
@edit_required
def convert_bookformat(book_id):
# check to see if we have form fields to work with - if not send user back
book_format_from = request.form.get('book_format_from', None)
book_format_to = request.form.get('book_format_to', None)
if (book_format_from is None) or (book_format_to is None):
flash(_("Source or destination format for conversion missing"), category="error")
return redirect(url_for('edit-book.show_edit_book', book_id=book_id))
log.info('converting: book id: %s from: %s to: %s', book_id, book_format_from, book_format_to)
rtn = helper.convert_book_format(book_id, config.get_book_path(), book_format_from.upper(),
book_format_to.upper(), current_user.name)
if rtn is None:
flash(_("Book successfully queued for converting to %(book_format)s",
book_format=book_format_to),
category="success")
else:
flash(_("There was an error converting this book: %(res)s", res=rtn), category="error")
return redirect(url_for('edit-book.show_edit_book', book_id=book_id))
@editbook.route("/ajax/getcustomenum/")
@login_required
def table_get_custom_enum(c_id):
ret = list()
cc = (calibre_db.session.query(db.CustomColumns)
.filter(db.CustomColumns.id == c_id)
.filter(db.CustomColumns.datatype.notin_(db.cc_exceptions)).one_or_none())
ret.append({'value': "", 'text': ""})
for idx, en in enumerate(cc.get_display_dict()['enum_values']):
ret.append({'value': en, 'text': en})
return json.dumps(ret)
@editbook.route("/ajax/editbooks/", methods=['POST'])
@login_required_if_no_ano
@edit_required
def edit_list_book(param):
vals = request.form.to_dict()
book = calibre_db.get_book(vals['pk'])
sort_param = ""
ret = ""
try:
if param == 'series_index':
edit_book_series_index(vals['value'], book)
ret = Response(json.dumps({'success': True, 'newValue': book.series_index}), mimetype='application/json')
elif param == 'tags':
edit_book_tags(vals['value'], book)
ret = Response(json.dumps({'success': True, 'newValue': ', '.join([tag.name for tag in book.tags])}),
mimetype='application/json')
elif param == 'series':
edit_book_series(vals['value'], book)
ret = Response(json.dumps({'success': True, 'newValue': ', '.join([serie.name for serie in book.series])}),
mimetype='application/json')
elif param == 'publishers':
edit_book_publisher(vals['value'], book)
ret = Response(json.dumps({'success': True,
'newValue': ', '.join([publisher.name for publisher in book.publishers])}),
mimetype='application/json')
elif param == 'languages':
invalid = list()
edit_book_languages(vals['value'], book, invalid=invalid)
if invalid:
ret = Response(json.dumps({'success': False,
'msg': 'Invalid languages in request: {}'.format(','.join(invalid))}),
mimetype='application/json')
else:
lang_names = list()
for lang in book.languages:
lang_names.append(isoLanguages.get_language_name(get_locale(), lang.lang_code))
ret = Response(json.dumps({'success': True, 'newValue': ', '.join(lang_names)}),
mimetype='application/json')
elif param == 'author_sort':
book.author_sort = vals['value']
ret = Response(json.dumps({'success': True, 'newValue': book.author_sort}),
mimetype='application/json')
elif param == 'title':
sort_param = book.sort
if handle_title_on_edit(book, vals.get('value', "")):
rename_error = helper.update_dir_structure(book.id, config.get_book_path())
if not rename_error:
ret = Response(json.dumps({'success': True, 'newValue': book.title}),
mimetype='application/json')
else:
ret = Response(json.dumps({'success': False,
'msg': rename_error}),
mimetype='application/json')
elif param == 'sort':
book.sort = vals['value']
ret = Response(json.dumps({'success': True, 'newValue': book.sort}),
mimetype='application/json')
elif param == 'comments':
edit_book_comments(vals['value'], book)
ret = Response(json.dumps({'success': True, 'newValue': book.comments[0].text}),
mimetype='application/json')
elif param == 'authors':
input_authors, __, renamed = handle_author_on_edit(book, vals['value'], vals.get('checkA', None) == "true")
rename_error = helper.update_dir_structure(book.id, config.get_book_path(), input_authors[0],
renamed_author=renamed)
if not rename_error:
ret = Response(json.dumps({
'success': True,
'newValue': ' & '.join([author.replace('|', ',') for author in input_authors])}),
mimetype='application/json')
else:
ret = Response(json.dumps({'success': False,
'msg': rename_error}),
mimetype='application/json')
elif param == 'is_archived':
is_archived = change_archived_books(book.id, vals['value'] == "True",
message="Book {} archive bit set to: {}".format(book.id, vals['value']))
if is_archived:
kobo_sync_status.remove_synced_book(book.id)
return ""
elif param == 'read_status':
ret = helper.edit_book_read_status(book.id, vals['value'] == "True")
if ret:
return ret, 400
elif param.startswith("custom_column_"):
new_val = dict()
new_val[param] = vals['value']
edit_single_cc_data(book.id, book, param[14:], new_val)
# ToDo: Very hacky find better solution
if vals['value'] in ["True", "False"]:
ret = ""
else:
ret = Response(json.dumps({'success': True, 'newValue': vals['value']}),
mimetype='application/json')
else:
return _("Parameter not found"), 400
book.last_modified = datetime.utcnow()
calibre_db.session.commit()
# revert change for sort if automatic fields link is deactivated
if param == 'title' and vals.get('checkT') == "false":
book.sort = sort_param
calibre_db.session.commit()
except (OperationalError, IntegrityError, StaleDataError) as e:
calibre_db.session.rollback()
log.error_or_exception("Database error: {}".format(e))
ret = Response(json.dumps({'success': False,
'msg': 'Database error: {}'.format(e.orig if hasattr(e, "orig") else e)}),
mimetype='application/json')
return ret
@editbook.route("/ajax/sort_value//")
@login_required
def get_sorted_entry(field, bookid):
if field in ['title', 'authors', 'sort', 'author_sort']:
book = calibre_db.get_filtered_book(bookid)
if book:
if field == 'title':
return json.dumps({'sort': book.sort})
elif field == 'authors':
return json.dumps({'author_sort': book.author_sort})
if field == 'sort':
return json.dumps({'sort': book.title})
if field == 'author_sort':
return json.dumps({'authors': " & ".join([a.name for a in calibre_db.order_authors([book])])})
return ""
@editbook.route("/ajax/simulatemerge", methods=['POST'])
@login_required
@edit_required
def simulate_merge_list_book():
vals = request.get_json().get('Merge_books')
if vals:
to_book = calibre_db.get_book(vals[0]).title
vals.pop(0)
if to_book:
from_book = []
for book_id in vals:
from_book.append(calibre_db.get_book(book_id).title)
return json.dumps({'to': to_book, 'from': from_book})
return ""
@editbook.route("/ajax/mergebooks", methods=['POST'])
@login_required
@edit_required
def merge_list_book():
vals = request.get_json().get('Merge_books')
to_file = list()
if vals:
# load all formats from target book
to_book = calibre_db.get_book(vals[0])
vals.pop(0)
if to_book:
for file in to_book.data:
to_file.append(file.format)
to_name = helper.get_valid_filename(to_book.title,
chars=96) + ' - ' + helper.get_valid_filename(to_book.authors[0].name,
chars=96)
for book_id in vals:
from_book = calibre_db.get_book(book_id)
if from_book:
for element in from_book.data:
if element.format not in to_file:
# create new data entry with: book_id, book_format, uncompressed_size, name
filepath_new = os.path.normpath(os.path.join(config.get_book_path(),
to_book.path,
to_name + "." + element.format.lower()))
filepath_old = os.path.normpath(os.path.join(config.get_book_path(),
from_book.path,
element.name + "." + element.format.lower()))
copyfile(filepath_old, filepath_new)
to_book.data.append(db.Data(to_book.id,
element.format,
element.uncompressed_size,
to_name))
delete_book_from_table(from_book.id, "", True)
return json.dumps({'success': True})
return ""
@editbook.route("/ajax/xchange", methods=['POST'])
@login_required
@edit_required
def table_xchange_author_title():
vals = request.get_json().get('xchange')
edited_books_id = False
if vals:
for val in vals:
modify_date = False
book = calibre_db.get_book(val)
authors = book.title
book.authors = calibre_db.order_authors([book])
author_names = []
for authr in book.authors:
author_names.append(authr.name.replace('|', ','))
title_change = handle_title_on_edit(book, " ".join(author_names))
input_authors, author_change, renamed = handle_author_on_edit(book, authors)
if author_change or title_change:
edited_books_id = book.id
modify_date = True
if config.config_use_google_drive:
gdriveutils.updateGdriveCalibreFromLocal()
if edited_books_id:
# toDo: Handle error
edit_error = helper.update_dir_structure(edited_books_id, config.get_book_path(), input_authors[0],
renamed_author=renamed)
if modify_date:
book.last_modified = datetime.utcnow()
calibre_db.set_metadata_dirty(book.id)
try:
calibre_db.session.commit()
except (OperationalError, IntegrityError, StaleDataError) as e:
calibre_db.session.rollback()
log.error_or_exception("Database error: {}".format(e))
return json.dumps({'success': False})
if config.config_use_google_drive:
gdriveutils.updateGdriveCalibreFromLocal()
return json.dumps({'success': True})
return ""
def merge_metadata(to_save, meta):
if to_save.get('author_name', "") == _('Unknown'):
to_save['author_name'] = ''
if to_save.get('book_title', "") == _('Unknown'):
to_save['book_title'] = ''
for s_field, m_field in [
('tags', 'tags'), ('author_name', 'author'), ('series', 'series'),
('series_index', 'series_id'), ('languages', 'languages'),
('book_title', 'title')]:
to_save[s_field] = to_save[s_field] or getattr(meta, m_field, '')
to_save["description"] = to_save["description"] or Markup(
getattr(meta, 'description', '')).unescape()
def identifier_list(to_save, book):
"""Generate a list of Identifiers from form information"""
id_type_prefix = 'identifier-type-'
id_val_prefix = 'identifier-val-'
result = []
for type_key, type_value in to_save.items():
if not type_key.startswith(id_type_prefix):
continue
val_key = id_val_prefix + type_key[len(id_type_prefix):]
if val_key not in to_save.keys():
continue
if to_save[val_key].startswith("data:"):
to_save[val_key], __, __ = str.partition(to_save[val_key], ",")
result.append(db.Identifiers(to_save[val_key], type_value, book.id))
return result
def prepare_authors(authr):
# handle authors
input_authors = authr.split('&')
# handle_authors(input_authors)
input_authors = list(map(lambda it: it.strip().replace(',', '|'), input_authors))
# Remove duplicates in authors list
input_authors = helper.uniq(input_authors)
# we have all author names now
if input_authors == ['']:
input_authors = [_('Unknown')] # prevent empty Author
renamed = list()
for in_aut in input_authors:
renamed_author = calibre_db.session.query(db.Authors).filter(db.Authors.name == in_aut).first()
if renamed_author and in_aut != renamed_author.name:
renamed.append(renamed_author.name)
all_books = calibre_db.session.query(db.Books) \
.filter(db.Books.authors.any(db.Authors.name == renamed_author.name)).all()
sorted_renamed_author = helper.get_sorted_author(renamed_author.name)
sorted_old_author = helper.get_sorted_author(in_aut)
for one_book in all_books:
one_book.author_sort = one_book.author_sort.replace(sorted_renamed_author, sorted_old_author)
return input_authors, renamed
def prepare_authors_on_upload(title, authr):
if title != _('Unknown') and authr != _('Unknown'):
entry = calibre_db.check_exists_book(authr, title)
if entry:
log.info("Uploaded book probably exists in library")
flash(_("Uploaded book probably exists in the library, consider to change before upload new: ")
+ Markup(render_title_template('book_exists_flash.html', entry=entry)), category="warning")
input_authors, renamed = prepare_authors(authr)
sort_authors_list = list()
db_author = None
for inp in input_authors:
stored_author = calibre_db.session.query(db.Authors).filter(db.Authors.name == inp).first()
if not stored_author:
if not db_author:
db_author = db.Authors(inp, helper.get_sorted_author(inp), "")
calibre_db.session.add(db_author)
calibre_db.session.commit()
sort_author = helper.get_sorted_author(inp)
else:
if not db_author:
db_author = stored_author
sort_author = stored_author.sort
sort_authors_list.append(sort_author)
sort_authors = ' & '.join(sort_authors_list)
return sort_authors, input_authors, db_author, renamed
def create_book_on_upload(modify_date, meta):
title = meta.title
authr = meta.author
sort_authors, input_authors, db_author, renamed_authors = prepare_authors_on_upload(title, authr)
title_dir = helper.get_valid_filename(title, chars=96)
author_dir = helper.get_valid_filename(db_author.name, chars=96)
# combine path and normalize path from Windows systems
path = os.path.join(author_dir, title_dir).replace('\\', '/')
try:
pubdate = datetime.strptime(meta.pubdate[:10], "%Y-%m-%d")
except ValueError:
pubdate = datetime(101, 1, 1)
# Calibre adds books with utc as timezone
db_book = db.Books(title, "", sort_authors, datetime.utcnow(), pubdate,
'1', datetime.utcnow(), path, meta.cover, db_author, [], "")
modify_date |= modify_database_object(input_authors, db_book.authors, db.Authors, calibre_db.session,
'author')
# Add series_index to book
modify_date |= edit_book_series_index(meta.series_id, db_book)
# add languages
invalid = []
modify_date |= edit_book_languages(meta.languages, db_book, upload_mode=True, invalid=invalid)
if invalid:
for lang in invalid:
flash(_("'%(langname)s' is not a valid language", langname=lang), category="warning")
# handle tags
modify_date |= edit_book_tags(meta.tags, db_book)
# handle publisher
modify_date |= edit_book_publisher(meta.publisher, db_book)
# handle series
modify_date |= edit_book_series(meta.series, db_book)
# Add file to book
file_size = os.path.getsize(meta.file_path)
db_data = db.Data(db_book, meta.extension.upper()[1:], file_size, title_dir)
db_book.data.append(db_data)
calibre_db.session.add(db_book)
# flush content, get db_book.id available
calibre_db.session.flush()
# Handle identifiers now that db_book.id is available
identifier_list = []
for type_key, type_value in meta.identifiers:
identifier_list.append(db.Identifiers(type_value, type_key, db_book.id))
modification, warning = modify_identifiers(identifier_list, db_book.identifiers, calibre_db.session)
if warning:
flash(_("Identifiers are not Case Sensitive, Overwriting Old Identifier"), category="warning")
modify_date |= modification
return db_book, input_authors, title_dir, renamed_authors
def file_handling_on_upload(requested_file):
# check if file extension is correct
if '.' in requested_file.filename:
file_ext = requested_file.filename.rsplit('.', 1)[-1].lower()
if file_ext not in constants.EXTENSIONS_UPLOAD and '' not in constants.EXTENSIONS_UPLOAD:
flash(
_("File extension '%(ext)s' is not allowed to be uploaded to this server",
ext=file_ext), category="error")
return None, Response(json.dumps({"location": url_for("web.index")}), mimetype='application/json')
else:
flash(_('File to be uploaded must have an extension'), category="error")
return None, Response(json.dumps({"location": url_for("web.index")}), mimetype='application/json')
# extract metadata from file
try:
meta = uploader.upload(requested_file, config.config_rarfile_location)
except (IOError, OSError):
log.error("File %s could not saved to temp dir", requested_file.filename)
flash(_("File %(filename)s could not saved to temp dir",
filename=requested_file.filename), category="error")
return None, Response(json.dumps({"location": url_for("web.index")}), mimetype='application/json')
return meta, None
def move_coverfile(meta, db_book):
# move cover to final directory, including book id
if meta.cover:
cover_file = meta.cover
else:
cover_file = os.path.join(constants.STATIC_DIR, 'generic_cover.jpg')
new_cover_path = os.path.join(config.get_book_path(), db_book.path)
try:
os.makedirs(new_cover_path, exist_ok=True)
copyfile(cover_file, os.path.join(new_cover_path, "cover.jpg"))
if meta.cover:
os.unlink(meta.cover)
except OSError as e:
log.error("Failed to move cover file %s: %s", new_cover_path, e)
flash(_("Failed to Move Cover File %(file)s: %(error)s", file=new_cover_path,
error=e),
category="error")
def delete_whole_book(book_id, book):
# delete book from shelves, Downloads, Read list
ub.session.query(ub.BookShelf).filter(ub.BookShelf.book_id == book_id).delete()
ub.session.query(ub.ReadBook).filter(ub.ReadBook.book_id == book_id).delete()
ub.delete_download(book_id)
ub.session_commit()
# check if only this book links to:
# author, language, series, tags, custom columns
modify_database_object([''], book.authors, db.Authors, calibre_db.session, 'author')
modify_database_object([u''], book.tags, db.Tags, calibre_db.session, 'tags')
modify_database_object([u''], book.series, db.Series, calibre_db.session, 'series')
modify_database_object([u''], book.languages, db.Languages, calibre_db.session, 'languages')
modify_database_object([u''], book.publishers, db.Publishers, calibre_db.session, 'publishers')
cc = calibre_db.session.query(db.CustomColumns). \
filter(db.CustomColumns.datatype.notin_(db.cc_exceptions)).all()
for c in cc:
cc_string = "custom_column_" + str(c.id)
if not c.is_multiple:
if len(getattr(book, cc_string)) > 0:
if c.datatype == 'bool' or c.datatype == 'integer' or c.datatype == 'float':
del_cc = getattr(book, cc_string)[0]
getattr(book, cc_string).remove(del_cc)
log.debug('remove ' + str(c.id))
calibre_db.session.delete(del_cc)
calibre_db.session.commit()
elif c.datatype == 'rating':
del_cc = getattr(book, cc_string)[0]
getattr(book, cc_string).remove(del_cc)
if len(del_cc.books) == 0:
log.debug('remove ' + str(c.id))
calibre_db.session.delete(del_cc)
calibre_db.session.commit()
else:
del_cc = getattr(book, cc_string)[0]
getattr(book, cc_string).remove(del_cc)
log.debug('remove ' + str(c.id))
calibre_db.session.delete(del_cc)
calibre_db.session.commit()
else:
modify_database_object([u''], getattr(book, cc_string), db.cc_classes[c.id],
calibre_db.session, 'custom')
calibre_db.session.query(db.Books).filter(db.Books.id == book_id).delete()
def render_delete_book_result(book_format, json_response, warning, book_id, location=""):
if book_format:
if json_response:
return json.dumps([warning, {"location": url_for("edit-book.show_edit_book", book_id=book_id),
"type": "success",
"format": book_format,
"message": _('Book Format Successfully Deleted')}])
else:
flash(_('Book Format Successfully Deleted'), category="success")
return redirect(url_for('edit-book.show_edit_book', book_id=book_id))
else:
if json_response:
return json.dumps([warning, {"location": get_redirect_location(location, "web.index"),
"type": "success",
"format": book_format,
"message": _('Book Successfully Deleted')}])
else:
flash(_('Book Successfully Deleted'), category="success")
return redirect(get_redirect_location(location, "web.index"))
def delete_book_from_table(book_id, book_format, json_response, location=""):
warning = {}
if current_user.role_delete_books():
book = calibre_db.get_book(book_id)
if book:
try:
result, error = helper.delete_book(book, config.get_book_path(), book_format=book_format.upper())
if not result:
if json_response:
return json.dumps([{"location": url_for("edit-book.show_edit_book", book_id=book_id),
"type": "danger",
"format": "",
"message": error}])
else:
flash(error, category="error")
return redirect(url_for('edit-book.show_edit_book', book_id=book_id))
if error:
if json_response:
warning = {"location": url_for("edit-book.show_edit_book", book_id=book_id),
"type": "warning",
"format": "",
"message": error}
else:
flash(error, category="warning")
if not book_format:
delete_whole_book(book_id, book)
else:
calibre_db.session.query(db.Data).filter(db.Data.book == book.id).\
filter(db.Data.format == book_format).delete()
if book_format.upper() in ['KEPUB', 'EPUB', 'EPUB3']:
kobo_sync_status.remove_synced_book(book.id, True)
calibre_db.session.commit()
except Exception as ex:
log.error_or_exception(ex)
calibre_db.session.rollback()
if json_response:
return json.dumps([{"location": url_for("edit-book.show_edit_book", book_id=book_id),
"type": "danger",
"format": "",
"message": ex}])
else:
flash(str(ex), category="error")
return redirect(url_for('edit-book.show_edit_book', book_id=book_id))
else:
# book not found
log.error('Book with id "%s" could not be deleted: not found', book_id)
return render_delete_book_result(book_format, json_response, warning, book_id, location)
message = _("You are missing permissions to delete books")
if json_response:
return json.dumps({"location": url_for("edit-book.show_edit_book", book_id=book_id),
"type": "danger",
"format": "",
"message": message})
else:
flash(message, category="error")
return redirect(url_for('edit-book.show_edit_book', book_id=book_id))
def render_edit_book(book_id):
cc = calibre_db.session.query(db.CustomColumns).filter(db.CustomColumns.datatype.notin_(db.cc_exceptions)).all()
book = calibre_db.get_filtered_book(book_id, allow_show_archived=True)
if not book:
flash(_("Oops! Selected book is unavailable. File does not exist or is not accessible"),
category="error")
return redirect(url_for("web.index"))
for lang in book.languages:
lang.language_name = isoLanguages.get_language_name(get_locale(), lang.lang_code)
book.authors = calibre_db.order_authors([book])
author_names = []
for authr in book.authors:
author_names.append(authr.name.replace('|', ','))
# Option for showing convert_book button
valid_source_formats = list()
allowed_conversion_formats = list()
kepub_possible = None
if config.config_converterpath:
for file in book.data:
if file.format.lower() in constants.EXTENSIONS_CONVERT_FROM:
valid_source_formats.append(file.format.lower())
if config.config_kepubifypath and 'epub' in [file.format.lower() for file in book.data]:
kepub_possible = True
if not config.config_converterpath:
valid_source_formats.append('epub')
# Determine what formats don't already exist
if config.config_converterpath:
allowed_conversion_formats = constants.EXTENSIONS_CONVERT_TO[:]
for file in book.data:
if file.format.lower() in allowed_conversion_formats:
allowed_conversion_formats.remove(file.format.lower())
if kepub_possible:
allowed_conversion_formats.append('kepub')
return render_title_template('book_edit.html', book=book, authors=author_names, cc=cc,
title=_("edit metadata"), page="editbook",
conversion_formats=allowed_conversion_formats,
config=config,
source_formats=valid_source_formats)
def edit_book_ratings(to_save, book):
changed = False
if to_save.get("rating", "").strip():
old_rating = False
if len(book.ratings) > 0:
old_rating = book.ratings[0].rating
rating_x2 = int(float(to_save.get("rating", "")) * 2)
if rating_x2 != old_rating:
changed = True
is_rating = calibre_db.session.query(db.Ratings).filter(db.Ratings.rating == rating_x2).first()
if is_rating:
book.ratings.append(is_rating)
else:
new_rating = db.Ratings(rating=rating_x2)
book.ratings.append(new_rating)
if old_rating:
book.ratings.remove(book.ratings[0])
else:
if len(book.ratings) > 0:
book.ratings.remove(book.ratings[0])
changed = True
return changed
def edit_book_tags(tags, book):
input_tags = tags.split(',')
input_tags = list(map(lambda it: it.strip(), input_tags))
# Remove duplicates
input_tags = helper.uniq(input_tags)
return modify_database_object(input_tags, book.tags, db.Tags, calibre_db.session, 'tags')
def edit_book_series(series, book):
input_series = [series.strip()]
input_series = [x for x in input_series if x != '']
return modify_database_object(input_series, book.series, db.Series, calibre_db.session, 'series')
def edit_book_series_index(series_index, book):
# Add default series_index to book
modify_date = False
series_index = series_index or '1'
if not series_index.replace('.', '', 1).isdigit():
flash(_("%(seriesindex)s is not a valid number, skipping", seriesindex=series_index), category="warning")
return False
if str(book.series_index) != series_index:
book.series_index = series_index
modify_date = True
return modify_date
# Handle book comments/description
def edit_book_comments(comments, book):
modify_date = False
if comments:
comments = clean_string(comments, book.id)
#try:
# if BLEACH:
# comments = clean_html(comments, tags=set(), attributes=set())
# else:
# comments = clean_html(comments)
#except ParserError as e:
# log.error("Comments of book {} are corrupted: {}".format(book.id, e))
# comments = ""
#except TypeError as e:
# log.error("Comments can't be parsed, maybe 'lxml' is too new, try installing 'bleach': {}".format(e))
# comments = ""
if len(book.comments):
if book.comments[0].text != comments:
book.comments[0].text = comments
modify_date = True
else:
if comments:
book.comments.append(db.Comments(comment=comments, book=book.id))
modify_date = True
return modify_date
def edit_book_languages(languages, book, upload_mode=False, invalid=None):
input_languages = languages.split(',')
unknown_languages = []
if not upload_mode:
input_l = isoLanguages.get_language_codes(get_locale(), input_languages, unknown_languages)
else:
input_l = isoLanguages.get_valid_language_codes(get_locale(), input_languages, unknown_languages)
for lang in unknown_languages:
log.error("'%s' is not a valid language", lang)
if isinstance(invalid, list):
invalid.append(lang)
else:
raise ValueError(_("'%(langname)s' is not a valid language", langname=lang))
# ToDo: Not working correct
if upload_mode and len(input_l) == 1:
# If the language of the file is excluded from the users view, it's not imported, to allow the user to view
# the book it's language is set to the filter language
if input_l[0] != current_user.filter_language() and current_user.filter_language() != "all":
input_l[0] = calibre_db.session.query(db.Languages). \
filter(db.Languages.lang_code == current_user.filter_language()).first().lang_code
# Remove duplicates
input_l = helper.uniq(input_l)
return modify_database_object(input_l, book.languages, db.Languages, calibre_db.session, 'languages')
def edit_book_publisher(publishers, book):
changed = False
if publishers:
publisher = publishers.rstrip().strip()
if len(book.publishers) == 0 or (len(book.publishers) > 0 and publisher != book.publishers[0].name):
changed |= modify_database_object([publisher], book.publishers, db.Publishers, calibre_db.session,
'publisher')
elif len(book.publishers):
changed |= modify_database_object([], book.publishers, db.Publishers, calibre_db.session, 'publisher')
return changed
def edit_cc_data_value(book_id, book, c, to_save, cc_db_value, cc_string):
changed = False
if to_save[cc_string] == 'None':
to_save[cc_string] = None
elif c.datatype == 'bool':
to_save[cc_string] = 1 if to_save[cc_string] == 'True' else 0
elif c.datatype == 'comments':
to_save[cc_string] = Markup(to_save[cc_string]).unescape()
if to_save[cc_string]:
to_save[cc_string] = clean_string(to_save[cc_string], book_id)
#try:
# if BLEACH:
# to_save[cc_string] = clean_html(to_save[cc_string], tags=set(), attributes=set())
# else:
# to_save[cc_string] = clean_html(to_save[cc_string])
#except ParserError as e:
# log.error("Customs Comments of book {} are corrupted: {}".format(book_id, e))
# to_save[cc_string] = ""
#except TypeError as e:
# to_save[cc_string] = ""
# log.error("Customs Comments can't be parsed, maybe 'lxml' is too new, "
# "try installing 'bleach': {}".format(e))
elif c.datatype == 'datetime':
try:
to_save[cc_string] = datetime.strptime(to_save[cc_string], "%Y-%m-%d")
except ValueError:
to_save[cc_string] = db.Books.DEFAULT_PUBDATE
if to_save[cc_string] != cc_db_value:
if cc_db_value is not None:
if to_save[cc_string] is not None:
setattr(getattr(book, cc_string)[0], 'value', to_save[cc_string])
changed = True
else:
del_cc = getattr(book, cc_string)[0]
getattr(book, cc_string).remove(del_cc)
calibre_db.session.delete(del_cc)
changed = True
else:
cc_class = db.cc_classes[c.id]
new_cc = cc_class(value=to_save[cc_string], book=book_id)
calibre_db.session.add(new_cc)
changed = True
return changed, to_save
def edit_cc_data_string(book, c, to_save, cc_db_value, cc_string):
changed = False
if c.datatype == 'rating':
to_save[cc_string] = str(int(float(to_save[cc_string]) * 2))
if to_save[cc_string].strip() != cc_db_value:
if cc_db_value is not None:
# remove old cc_val
del_cc = getattr(book, cc_string)[0]
getattr(book, cc_string).remove(del_cc)
if len(del_cc.books) == 0:
calibre_db.session.delete(del_cc)
changed = True
cc_class = db.cc_classes[c.id]
new_cc = calibre_db.session.query(cc_class).filter(
cc_class.value == to_save[cc_string].strip()).first()
# if no cc val is found add it
if new_cc is None:
new_cc = cc_class(value=to_save[cc_string].strip())
calibre_db.session.add(new_cc)
changed = True
calibre_db.session.flush()
new_cc = calibre_db.session.query(cc_class).filter(
cc_class.value == to_save[cc_string].strip()).first()
# add cc value to book
getattr(book, cc_string).append(new_cc)
return changed, to_save
def edit_single_cc_data(book_id, book, column_id, to_save):
cc = (calibre_db.session.query(db.CustomColumns)
.filter(db.CustomColumns.datatype.notin_(db.cc_exceptions))
.filter(db.CustomColumns.id == column_id)
.all())
return edit_cc_data(book_id, book, to_save, cc)
def edit_all_cc_data(book_id, book, to_save):
cc = calibre_db.session.query(db.CustomColumns).filter(db.CustomColumns.datatype.notin_(db.cc_exceptions)).all()
return edit_cc_data(book_id, book, to_save, cc)
def edit_cc_data(book_id, book, to_save, cc):
changed = False
for c in cc:
cc_string = "custom_column_" + str(c.id)
if not c.is_multiple:
if len(getattr(book, cc_string)) > 0:
cc_db_value = getattr(book, cc_string)[0].value
else:
cc_db_value = None
if to_save[cc_string].strip():
if c.datatype in ['int', 'bool', 'float', "datetime", "comments"]:
change, to_save = edit_cc_data_value(book_id, book, c, to_save, cc_db_value, cc_string)
else:
change, to_save = edit_cc_data_string(book, c, to_save, cc_db_value, cc_string)
changed |= change
else:
if cc_db_value is not None:
# remove old cc_val
del_cc = getattr(book, cc_string)[0]
getattr(book, cc_string).remove(del_cc)
if not del_cc.books or len(del_cc.books) == 0:
calibre_db.session.delete(del_cc)
changed = True
else:
input_tags = to_save[cc_string].split(',')
input_tags = list(map(lambda it: it.strip(), input_tags))
changed |= modify_database_object(input_tags,
getattr(book, cc_string),
db.cc_classes[c.id],
calibre_db.session,
'custom')
return changed
# returns None if no file is uploaded
# returns False if an error occurs, in all other cases the ebook metadata is returned
def upload_single_file(file_request, book, book_id):
# Check and handle Uploaded file
requested_file = file_request.files.get('btn-upload-format', None)
if requested_file:
# check for empty request
if requested_file.filename != '':
if not current_user.role_upload():
flash(_("User has no rights to upload additional file formats"), category="error")
return False
if '.' in requested_file.filename:
file_ext = requested_file.filename.rsplit('.', 1)[-1].lower()
if file_ext not in constants.EXTENSIONS_UPLOAD and '' not in constants.EXTENSIONS_UPLOAD:
flash(_("File extension '%(ext)s' is not allowed to be uploaded to this server", ext=file_ext),
category="error")
return False
else:
flash(_('File to be uploaded must have an extension'), category="error")
return False
file_name = book.path.rsplit('/', 1)[-1]
filepath = os.path.normpath(os.path.join(config.get_book_path(), book.path))
saved_filename = os.path.join(filepath, file_name + '.' + file_ext)
# check if file path exists, otherwise create it, copy file to calibre path and delete temp file
if not os.path.exists(filepath):
try:
os.makedirs(filepath)
except OSError:
flash(_("Failed to create path %(path)s (Permission denied).", path=filepath), category="error")
return False
try:
requested_file.save(saved_filename)
except OSError:
flash(_("Failed to store file %(file)s.", file=saved_filename), category="error")
return False
file_size = os.path.getsize(saved_filename)
is_format = calibre_db.get_book_format(book_id, file_ext.upper())
# Format entry already exists, no need to update the database
if is_format:
log.warning('Book format %s already existing', file_ext.upper())
else:
try:
db_format = db.Data(book_id, file_ext.upper(), file_size, file_name)
calibre_db.session.add(db_format)
calibre_db.session.commit()
calibre_db.update_title_sort(config)
except (OperationalError, IntegrityError, StaleDataError) as e:
calibre_db.session.rollback()
log.error_or_exception("Database error: {}".format(e))
flash(_("Oops! Database Error: %(error)s.", error=e.orig if hasattr(e, "orig") else e),
category="error")
return False # return redirect(url_for('web.show_book', book_id=book.id))
# Queue uploader info
link = '{}'.format(url_for('web.show_book', book_id=book.id), escape(book.title))
upload_text = N_("File format %(ext)s added to %(book)s", ext=file_ext.upper(), book=link)
WorkerThread.add(current_user.name, TaskUpload(upload_text, escape(book.title)))
return uploader.process(
saved_filename, *os.path.splitext(requested_file.filename),
rar_executable=config.config_rarfile_location)
return None
def upload_cover(cover_request, book):
requested_file = cover_request.files.get('btn-upload-cover', None)
if requested_file:
# check for empty request
if requested_file.filename != '':
if not current_user.role_upload():
flash(_("User has no rights to upload cover"), category="error")
return False
ret, message = helper.save_cover(requested_file, book.path)
if ret is True:
helper.replace_cover_thumbnail_cache(book.id)
return True
else:
flash(message, category="error")
return False
return None
def handle_title_on_edit(book, book_title):
# handle book title
book_title = book_title.rstrip().strip()
if book.title != book_title:
if book_title == '':
book_title = _(u'Unknown')
book.title = book_title
return True
return False
def handle_author_on_edit(book, author_name, update_stored=True):
change = False
# handle author(s)
input_authors, renamed = prepare_authors(author_name)
# change |= modify_database_object(input_authors, book.authors, db.Authors, calibre_db.session, 'author')
# Search for each author if author is in database, if not, author name and sorted author name is generated new
# everything then is assembled for sorted author field in database
sort_authors_list = list()
for inp in input_authors:
stored_author = calibre_db.session.query(db.Authors).filter(db.Authors.name == inp).first()
if not stored_author:
stored_author = helper.get_sorted_author(inp.replace('|', ','))
else:
stored_author = stored_author.sort
sort_authors_list.append(helper.get_sorted_author(stored_author))
sort_authors = ' & '.join(sort_authors_list)
if book.author_sort != sort_authors and update_stored:
book.author_sort = sort_authors
change = True
change |= modify_database_object(input_authors, book.authors, db.Authors, calibre_db.session, 'author')
return input_authors, change, renamed
def search_objects_remove(db_book_object, db_type, input_elements):
del_elements = []
for c_elements in db_book_object:
found = False
#if db_type == 'languages':
# type_elements = c_elements.lang_code
if db_type == 'custom':
type_elements = c_elements.value
else:
# type_elements = c_elements.name
type_elements = c_elements
for inp_element in input_elements:
if type_elements == inp_element:
found = True
break
# if the element was not found in the new list, add it to remove list
if not found:
del_elements.append(c_elements)
return del_elements
def search_objects_add(db_book_object, db_type, input_elements):
add_elements = []
for inp_element in input_elements:
found = False
for c_elements in db_book_object:
if db_type == 'custom':
type_elements = c_elements.value
else:
type_elements = c_elements
if type_elements == inp_element:
found = True
break
if not found:
add_elements.append(inp_element)
return add_elements
def remove_objects(db_book_object, db_session, del_elements):
changed = False
if len(del_elements) > 0:
for del_element in del_elements:
db_book_object.remove(del_element)
changed = True
if len(del_element.books) == 0:
db_session.delete(del_element)
db_session.flush()
return changed
def add_objects(db_book_object, db_object, db_session, db_type, add_elements):
changed = False
if db_type == 'languages':
db_filter = db_object.lang_code
elif db_type == 'custom':
db_filter = db_object.value
else:
db_filter = db_object.name
for add_element in add_elements:
# check if an element with that name exists
changed = True
# db_session.query(db.Tags).filter((func.lower(db.Tags.name).ilike("GênOt"))).all()
db_element = db_session.query(db_object).filter((func.lower(db_filter).ilike(add_element))).first()
# db_element = db_session.query(db_object).filter(func.lower(db_filter) == add_element.lower()).first()
# if no element is found add it
if db_element is None:
if db_type == 'author':
new_element = db_object(add_element, helper.get_sorted_author(add_element.replace('|', ',')))
elif db_type == 'series':
new_element = db_object(add_element, add_element)
elif db_type == 'custom':
new_element = db_object(value=add_element)
elif db_type == 'publisher':
new_element = db_object(add_element, None)
else: # db_type should be tag or language
new_element = db_object(add_element)
db_session.add(new_element)
db_book_object.append(new_element)
else:
db_no_case = db_session.query(db_object).filter(db_filter == add_element).first()
if db_no_case:
# check for new case of element
db_element = create_objects_for_addition(db_element, add_element, db_type)
else:
db_element = create_objects_for_addition(db_element, add_element, db_type)
# add element to book
db_book_object.append(db_element)
return changed
def create_objects_for_addition(db_element, add_element, db_type):
if db_type == 'custom':
if db_element.value != add_element:
db_element.value = add_element
elif db_type == 'languages':
if db_element.lang_code != add_element:
db_element.lang_code = add_element
elif db_type == 'series':
if db_element.name != add_element:
db_element.name = add_element
db_element.sort = add_element
elif db_type == 'author':
if db_element.name != add_element:
db_element.name = add_element
db_element.sort = helper.get_sorted_author(add_element.replace('|', ','))
elif db_type == 'publisher':
if db_element.name != add_element:
db_element.name = add_element
db_element.sort = None
elif db_element.name != add_element:
db_element.name = add_element
return db_element
# Modifies different Database objects, first check if elements have to be deleted,
# because they are no longer used, than check if elements have to be added to database
def modify_database_object(input_elements, db_book_object, db_object, db_session, db_type):
# passing input_elements not as a list may lead to undesired results
if not isinstance(input_elements, list):
raise TypeError(str(input_elements) + " should be passed as a list")
input_elements = [x for x in input_elements if x != '']
changed = False
# If elements are renamed (upper lower case), rename it
for rec_a, rec_b in zip(db_book_object, input_elements):
if db_type == "custom":
if rec_a.value.casefold() == rec_b.casefold() and rec_a.value != rec_b:
create_objects_for_addition(rec_a, rec_b, db_type)
else:
if rec_a.get().casefold() == rec_b.casefold() and rec_a.get() != rec_b:
create_objects_for_addition(rec_a, rec_b, db_type)
# we have all input element (authors, series, tags) names now
# 1. search for elements to remove
del_elements = search_objects_remove(db_book_object, db_type, input_elements)
# 2. search for elements that need to be added
add_elements = search_objects_add(db_book_object, db_type, input_elements)
# if there are elements to remove, we remove them now
changed |= remove_objects(db_book_object, db_session, del_elements)
# if there are elements to add, we add them now!
if len(add_elements) > 0:
changed |= add_objects(db_book_object, db_object, db_session, db_type, add_elements)
return changed
def modify_identifiers(input_identifiers, db_identifiers, db_session):
"""Modify Identifiers to match input information.
input_identifiers is a list of read-to-persist Identifiers objects.
db_identifiers is a list of already persisted list of Identifiers objects."""
changed = False
error = False
input_dict = dict([(identifier.type.lower(), identifier) for identifier in input_identifiers])
if len(input_identifiers) != len(input_dict):
error = True
db_dict = dict([(identifier.type.lower(), identifier) for identifier in db_identifiers])
# delete db identifiers not present in input or modify them with input val
for identifier_type, identifier in db_dict.items():
if identifier_type not in input_dict.keys():
db_session.delete(identifier)
changed = True
else:
input_identifier = input_dict[identifier_type]
identifier.type = input_identifier.type
identifier.val = input_identifier.val
# add input identifiers not present in db
for identifier_type, identifier in input_dict.items():
if identifier_type not in db_dict.keys():
db_session.add(identifier)
changed = True
return changed, error