Apply Functions on a column on a set of select row

[Khan-Dam]

Hi,

I'm seeking a solution for this problem

I have a custom Column type number with coma and for any reason i would add a value for theese cell after selected some row in the library

exemple :

in column Indice a have
Sel Indice | Book
> 1 | a book
> 6 | book 2
3 | book 3
> 9 | book 4

after applying add 2 for column indice on selected 1,2 and 4 book i would obtain :
> 3 | a book
> 8 | book 2
3 | book 3
> 11 | book 4

and the same thing on a colum type like serie with index

Is there an existing solution in calibre or this must done by a plug-in ?

thank in advance

regards

Khan-Dam

[chaley]

If I understand correctly what you want to do (not sure), then you can do it with global search & replace. The attached screen capture shows how. It adds two to the #myint field for every book selected.

[Khan-Dam]

Yes it's exactily what i need

thank you very much for that

i seek for a long time to do but i don't understand exactly that i can make without find and replace field in regular expression

it make's me gain a lot of time when i maintain library

is it possible to make same thing with adding something from the value in the column of the previous row

#myint = #myint ( from previous row) + 1

regards

[chaley]

Originally Posted by Khan-Dam

is it possible to make same thing with adding something from the value in the column of the previous row

#myint = #myint ( from previous row) + 1

regards

No. The template language can "see" only the current book. The is no way to use the metadata from book A while processing book B.

You can do that sort of thing in a plugin, because it has access to the complete database and the complete selection list.

[Khan-Dam]

Thanks a Lot

Regard from France