Trying to extract ISBN from title using action chain

[Stumpy]

Hi

I installed calibre yesterday and i try to import my books into it right now.
As my books are in german, they wont get recognized that good.
Several of my books are in pdf and the isbn is at the beginning of the title.
Because of that, i installed the plugin "action chains" and made a action to extract the isbn from the title, which works fine, as long as i only have one book selected.
if i have multiple books selected, every book gets the same ISBN.
How can i run the action chain for each of the selected books or is there and easier way?

Action Chain
Single Filed Edit
Column = identifiers

Template

program:
    title = from_selection('title');
    isbn = shorten(title,13,"",0);
    test = ("isbn: " & isbn)

Greetings Stumpy

[dunhill]

I haven't tried the Extract ISBN plugin.

[Stumpy]

Originally Posted by dunhill

I haven't tried the Extract ISBN plugin.

hey

i tried the Extract ISBN Plugin too.
It cant find the ISBN.
As i understand the plugin, it only looks on the pages itself.
The ISBN would be on page 2 on the lower end and the plugin dosnt find it.
Maybe because its a pdf?

[Comfy.n]

Originally Posted by Stumpy

hey

i tried the Extract ISBN Plugin too.
It cant find the ISBN.
As i understand the plugin, it only looks on the pages itself.
The ISBN would be on page 2 on the lower end and the plugin dosnt find it.
Maybe because its a pdf?

Extract ISBN plugin should work if PDF is OCR'd.

To extract from titles, you could use a Python template instead, I've attached an example that worked fine for me.

Your GPM template is missing a $ in second line: isbn = shorten($title,13,"",0);

[Stumpy]

Originally Posted by Comfy.n

Extract ISBN plugin should work if PDF is OCR'd.

To extract from titles, you could use a Python template instead, I've attached an example that worked fine for me.

Your GPM template is missing a $ in second line: isbn = shorten($title,13,"",0);

ty alot.
adding the $ fixed the problem and i am finally able to select all files and get the isbn from the title.

[Comfy.n]

Originally Posted by Stumpy

ty alot.
adding the $ fixed the problem and i am finally able to select all files and get the isbn from the title.

Beware that, according to my tests, the GPM template would set the ISBN identifier but would replace any other preexistent identifiers.

(I forgot to tell you how to import the chain: you want to right-click Action Chains main dialog then choose import and load the zip file)

[JSWolf]

Originally Posted by Stumpy

Hi

I installed calibre yesterday and i try to import my books into it right now.
As my books are in german, they wont get recognized that good.
Several of my books are in pdf and the isbn is at the beginning of the title.
Because of that, i installed the plugin "action chains" and made a action to extract the isbn from the title, which works fine, as long as i only have one book selected.
if i have multiple books selected, every book gets the same ISBN.
How can i run the action chain for each of the selected books or is there and easier way?

Action Chain
Single Filed Edit
Column = identifiers

Template

program:
    title = from_selection('title');
    isbn = shorten(title,13,"",0);
    test = ("isbn: " & isbn)

Greetings Stumpy

Does this get the correct ISBN if the ePub has multiple ISBN numbers in the copyright page?

[DNSB]

Originally Posted by JSWolf

Does this get the correct ISBN if the ePub has multiple ISBN numbers in the copyright page?

It would appear that action chain extracts the ISBN from the title and not from the body.

[Stumpy]

Originally Posted by JSWolf

Does this get the correct ISBN if the ePub has multiple ISBN numbers in the copyright page?

as DNSB already said, it only extracts the isbn if it is in the title.

@Comfy.n ty for claryfing. i didnt have any identifier yet so it was no problem that it would delete them.
now as i know how to add your chain, i will test it as soon as the current import / metadata import is complete.