Displaying genres and subgenres in manin view

[norolim]

Hi. I'm a new user here, so hello everyone.

I've searched the internet for an answer, but failed to find anything, so here is my problem. I used this guide, to create a Genre column with hierarchical genre structure. This worked fine, bu I also wanted to display the genres and subgenres in the Genre column in the main view. Unfortunately, since the hierarchy is created using the A.B.C syntax, Calibre displays the genres in the column as exactly that: A.B.C.

Is there a way to force Calibre to display genres and subgenres separately? I'm using Calibre 3.48, as I'm on Win7.

[capink]

Here is a note from the link you provided:

Note:

Hierarchical display only works if the Tag browser is set to sort items by name. This is the default and can be checked by clicking the Configure button at the bottom of the Tag browser.

That was my stumbling block when I first attempted to do it. You configure this by clicking the configure button at the bottom of the tag browser.

[norolim]

Originally Posted by capink

Here is a note from the link you provided:



That was my stumbling block when I first attempted to do it. You configure this by clicking the configure button at the bottom of the tag browser.

Could you please elaborate? I don't seem to have any settings for that under that particular button. Please mind, I'm trying to change the display of subgenres in the main window, not the tab browser.

[capink]

Tag browser not tab browser. Right at the bottom. This is the only place you can show hierarchies.

[norolim]

Yeah, that was a typo, I couldn't correct, 'cause I can't edit posts.

Let me explain, what I mean in more detail. Following the guide, I created a custom Genre column and added it to Categories with hierarchical items. Then I populated metadata with genres and subgenres, such as:

• Speculative fiction.Sci-fi.Steampunk
• Speculative fiction.Sci-fi.Cyberpunk
• etc.

This created a nice hierarchical tree in the tag browser, but since I created a column called Genre, I also wanted to display it in the main view of Calibre (where the books are listed). I was hoping Calibre would be able to separate the various genres and subgenres as it does in the tag browser. Instead it just listed the items the way, I typed them into metadata. So a steampunk book, would have Speculative fiction.Sci-fi.Steampunk as its genre. My question is, whether it is possible to display the hierarchical item separated in the column.

[DNSB]

Originally Posted by norolim

Yeah, that was a typo, I couldn't correct, 'cause I can't edit posts.

Let me explain, what I mean in more detail. Following the guide, I created a custom Genre column and added it to Categories with hierarchical items. Then I populated metadata with genres and subgenres, such as:

• Speculative fiction.Sci-fi.Steampunk
• Speculative fiction.Sci-fi.Cyberpunk
• etc.

This created a nice hierarchical tree in the tag browser, but since I created a column called Genre, I also wanted to display it in the main view of Calibre (where the books are listed). I was hoping Calibre would be able to separate the various genres and subgenres as it does in the tag browser. Instead it just listed the items the way, I typed them into metadata. So a steampunk book, would have Speculative fiction.Sci-fi.Steampunk as its genre. My question is, whether it is possible to display the hierarchical item separated in the column.

AFAIK, the answer is no. The tag browser is the only place to see hierarchies.

[theducks]

Originally Posted by DNSB

AFAIK, the answer is no. The tag browser is the only place to see hierarchies.

Series (and others) also as main.sub

[BetterRed]

The dotted representation of a hierarchical column can be shown in the Book List as A.B.C

The elements of such a column can be extracted in a template via the subitems function and loaded into a composite custom column. See Using functions in templates - Single Function Mode

BR

[norolim]

Thanks for all the help. Unfortunately, I don't really have time to learn the templates language, so this will not help me. I guess I'll have do, what I need, using tags.

[BetterRed]

Originally Posted by norolim

Thanks for all the help. Unfortunately, I don't really have time to learn the templates language, so this will not help me. I guess I'll have do, what I need, using tags.

Wait a bit and one of the detail guys should chime in and provide the step-by-step details.

If they don't I'll give 'em a nudge in the morning (my time).

BR

[capink]

It is not clear what wanted here. Hierarchies cannot be displayed in list view.

If all you want is to separate or unpack the hierarchical genres into separate items, the solution would be a custom column with a template to replace the dot with ', '. You can use the following template to achieve this:

{#genre:'re($,'\.',', ')'}

[BetterRed]

@norolim - I seem to have misunderstood what you want.

I thought you wanted a separate column named Genre containing the first subitem of your hierarchical Tags in the book list - probably because the dotted strings Speculative Fiction.Sci-fi.Steampunk etc take up too much horizontal space.

capink is right, you cannot a show a taxonomy as a hierarchical tree in the book list.

BR

[norolim]

Originally Posted by capink

It is not clear what wanted here. Hierarchies cannot be displayed in list view.

If all you want is to separate or unpack the hierarchical genres into separate items, the solution would be a custom column with a template to replace the dot with ', '. You can use the following template to achieve this:

{#genre:'re($,'\.',', ')'}

That is, what I needed. No tree, just items separated by comas. Thank you very much.

Now, would it be possible to get rid of duplicates in some way? If a book has the following metadata:

Speculative fiction.Science fiction.Steampunk, Speculative fiction.Fantasy

Your template will return:

Speculative fiction, Science fiction, Steampunk, Speculative fiction, Fantasy

Is there a way to remove duplicates in such situations?

[capink]

program:
    genre = '';
    for item in '#genre':
        l = re(item, '\.', ',');
        for subitem in l:
            res = str_in_list(genre, ', ', subitem, subitem, '');
            if res == '' then
                genre = strcat(genre, ', ', subitem)
            fi
        rof
    rof;
    re(genre, '^[, ]+', '')

[norolim]

Originally Posted by capink

program:

Thank you @capink. Unfortunately, I have now idea how to use this code.