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Code Issues Releases Wiki Activity

Backup metadata 4th step

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This commit is contained in:
Ozzie Isaacs
2022-09-19 22:39:40 +02:00
parent 26be5ee237
commit c10708ed07
7 changed files with 85 additions and 37 deletions
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65
cps/tasks/metadata_backup.py
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@@ -42,7 +42,7 @@ NSMAP = {'dc': PURL_NAMESPACE, 'opf': OPF_NAMESPACE}
class TaskBackupMetadata(CalibreTask):
def __init__(self, export_language="en",
translated_title="cover",
translated_title="Cover",
set_dirty=False,
task_message=N_('Backing up Metadata')):
super(TaskBackupMetadata, self).__init__(task_message)
@@ -50,7 +50,7 @@ class TaskBackupMetadata(CalibreTask):
self.calibre_db = db.CalibreDB(expire_on_commit=False, init=True)
self.export_language = export_language
self.translated_title = translated_title
self.set_dirty=set_dirty
self.set_dirty = set_dirty
def run(self, worker_thread):
if self.set_dirty:
@@ -62,8 +62,9 @@ class TaskBackupMetadata(CalibreTask):
try:
books = self.calibre_db.session.query(db.Books).all()
for book in books:
self.calibre_db.set_metadata_dirty(book)
self._handleSuccess()
self.calibre_db.set_metadata_dirty(book.id)
self.calibre_db.session.commit()
self._handleSuccess()
except Exception as ex:
self.log.debug('Error adding book for backup: ' + str(ex))
self._handleError('Error adding book for backup: ' + str(ex))
@@ -74,21 +75,25 @@ class TaskBackupMetadata(CalibreTask):
try:
metadata_backup = self.calibre_db.session.query(db.Metadata_Dirtied).all()
custom_columns = self.calibre_db.session.query(db.CustomColumns).order_by(db.CustomColumns.label).all()
count = len(metadata_backup)
i = 0
for backup in metadata_backup:
book = self.calibre_db.session.query(db.Books).filter(db.Books.id == backup.book).one_or_none()
self.calibre_db.session.query(db.Metadata_Dirtied).filter(db.Metadata_Dirtied == backup.id).delete()
self.calibre_db.session.query(db.Metadata_Dirtied).filter(
db.Metadata_Dirtied.book == backup.book).delete()
self.calibre_db.session.commit()
if book:
self.open_metadata(book, custom_columns)
self._handleSuccess()
self.calibre_db.session.close()
else:
self.log.error("Book {} not found in database".format(backup.book))
self._handleError("Book {} not found in database".format(backup.book))
self.calibre_db.session.close()
# self._handleError("Book {} not found in database".format(backup.book))
i += 1
self.progress = (1.0 / count) * i
self._handleSuccess()
self.calibre_db.session.close()
except Exception as ex:
self.log.debug('Error creating metadata backup: ' + str(ex))
self.log.debug('Error creating metadata backup for book {}: '.format(book.id) + str(ex))
self._handleError('Error creating metadata backup: ' + str(ex))
self.calibre_db.session.rollback()
self.calibre_db.session.close()
@@ -155,36 +160,37 @@ class TaskBackupMetadata(CalibreTask):
title.text = book.title
for author in book.authors:
creator = etree.SubElement(metadata, PURL + "creator", nsmap=NSMAP)
creator.text = str(author)
creator.text = str(author.name)
creator.set(OPF + "file-as", book.author_sort) # ToDo Check
creator.set(OPF + "role", "aut")
contributor = etree.SubElement(metadata, PURL + "contributor", nsmap=NSMAP)
contributor.text = "calibre (5.7.2) [https://calibre-ebook.com]"
contributor.set(OPF + "file-as", "calibre") # ToDo Check
contributor.set(OPF + "role", "bpk")
contributor.set(OPF + "role", "bkp")
date = etree.SubElement(metadata, PURL + "date", nsmap=NSMAP)
date.text = '{d.year:04}-{d.month:02}-{d.day:02}T{d.hour:02}:{d.minute:02}:{d.second:02}'.format(d=book.pubdate)
if book.comments:
for b in book.comments:
description = etree.SubElement(metadata, PURL + "description", nsmap=NSMAP)
description.text = b.text
if not book.languages:
language = etree.SubElement(metadata, PURL + "language", nsmap=NSMAP)
language.text = self.export_language
else:
for b in book.languages:
language = etree.SubElement(metadata, PURL + "language", nsmap=NSMAP)
language.text = str(b.languages)
language.text = str(b.lang_code)
for b in book.tags:
subject = etree.SubElement(metadata, PURL + "subject", nsmap=NSMAP)
subject.text = str(b.tags)
if book.comments:
description = etree.SubElement(metadata, PURL + "description", nsmap=NSMAP)
description.text = escape(str(book.comments))
subject.text = str(b.name)
etree.SubElement(metadata, "meta", name="calibre:author_link_map",
content="{" + escape(",".join(['"' + str(a) + '":""' for a in book.authors])) + "}",
nsmap=NSMAP)
etree.SubElement(metadata, "meta", name="calibre:series",
content=str(book.series),
content="{" + ", ".join(['"' + str(a.name) + '": ""' for a in book.authors]) + "}",
nsmap=NSMAP)
for b in book.series:
etree.SubElement(metadata, "meta", name="calibre:series",
content=str(str(b.name)),
nsmap=NSMAP)
etree.SubElement(metadata, "meta", name="calibre:series_index",
content=str(book.series_index),
nsmap=NSMAP)
@@ -195,6 +201,7 @@ class TaskBackupMetadata(CalibreTask):
etree.SubElement(metadata, "meta", name="calibre:title_sort",
content=book.sort,
nsmap=NSMAP)
sequence = 0
for cc in custom_columns:
value = None
extra = None
@@ -203,8 +210,9 @@ class TaskBackupMetadata(CalibreTask):
value = cc_entry[0].get("value")
extra = cc_entry[0].get("extra")
etree.SubElement(metadata, "meta", name="calibre:user_metadata:#{}".format(cc.label),
content=escape(cc.to_json(value, extra)),
content=cc.to_json(value, extra, sequence),
nsmap=NSMAP)
sequence += 1
# generate guide element and all sub elements of it
# Title is translated from default export language
@@ -213,15 +221,24 @@ class TaskBackupMetadata(CalibreTask):
# prepare finalize everything and output
doc = etree.ElementTree(package)
# doc = etree.tostring(package, xml_declaration=True, encoding='utf-8', pretty_print=True) # .replace(b""", b""")
try:
with open(book_metadata_filepath, 'wb') as f:
# f.write(doc)
doc.write(f, xml_declaration=True, encoding='utf-8', pretty_print=True)
except Exception:
# ToDo: Folder not writeable error
pass
@property
def name(self):
return "Backing up Metadata"
return "Metadata backup"
# needed for logging
def __str__(self):
if self.set_dirty:
return "Queue all books for metadata backup"
else:
return "Perform metadata backup"
@property
def is_cancellable(self):