Convert Book ID to Library filename

Agama · 08-10-2012, 06:52 PM

Is there a function that I can call that takes a Book ID as input and returns the generic filename of the book, (i.e. no extension), without the full library path?

kovidgoyal · 08-10-2012, 11:01 PM

construct_path_name() and construct_file_name()

Agama · 08-14-2012, 08:21 PM

construct_file_name() returned exactly what I expected but construct_path_name() returned a folder path relative to the library. Is there anyway to return the full OS path to the library folder?

For example: C:\Folders\Books\Main\Dickens, Charles\The Pickwick Papers (168)

kovidgoyal · 08-14-2012, 11:49 PM

db.library_path

Agama · 08-15-2012, 08:44 AM

Thanks, that completes the set!

All 3 of these work without me adding any extra import statements to the plugin.
How do I know when an import is required or not? Do I just try first without and see if it fails?

For example, in the same plugin I have "from calibre.ebooks.metadata.meta import get_metadata" and this one is necessary for use of get_metadata.

kovidgoyal · 08-15-2012, 09:49 AM

import statements add names to the current namespace. If the name is already present, like db then you dont need to import it.

08-10-2012, 06:52 PM	#1
Agama Guru Posts: 776 Karma: 2751519 Join Date: Jul 2010 Location: UK Device: PW2, Nexus7	Convert Book ID to Library filename Is there a function that I can call that takes a Book ID as input and returns the generic filename of the book, (i.e. no extension), without the full library path?

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08-10-2012, 11:01 PM	#2
kovidgoyal creator of calibre Posts: 45,215 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	construct_path_name() and construct_file_name()

08-14-2012, 08:21 PM	#3
Agama Guru Posts: 776 Karma: 2751519 Join Date: Jul 2010 Location: UK Device: PW2, Nexus7	construct_file_name() returned exactly what I expected but construct_path_name() returned a folder path relative to the library. Is there anyway to return the full OS path to the library folder? For example: C:\Folders\Books\Main\Dickens, Charles\The Pickwick Papers (168)

08-14-2012, 11:49 PM	#4
kovidgoyal creator of calibre Posts: 45,215 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	db.library_path

08-15-2012, 08:44 AM	#5
Agama Guru Posts: 776 Karma: 2751519 Join Date: Jul 2010 Location: UK Device: PW2, Nexus7	Thanks, that completes the set! All 3 of these work without me adding any extra import statements to the plugin. How do I know when an import is required or not? Do I just try first without and see if it fails? For example, in the same plugin I have "from calibre.ebooks.metadata.meta import get_metadata" and this one is necessary for use of get_metadata.

08-15-2012, 09:49 AM	#6
kovidgoyal creator of calibre Posts: 45,215 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	import statements add names to the current namespace. If the name is already present, like db then you dont need to import it.

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