Template language functions not being evaluated

[flasunco]

Hey all,

I have the problem that no functions used in a template are evaluated (or parsed). Meaning, the function call itself will be part of the output.

I first tried to get the pubdate year, but now noticed that nothing seems to work (see the capitalize call).

Template:

{author_sort}/
{series:||{series_index:| #|} - }
{title} ({pubdate})/
{authors} - 
{series:||{series_index:| #|} - }
{title} 

(format_date_field('pubdate', 'yyyy'))
format_date(field('pubdate'), 'yyyy')
capitalize('asdf')

Output:

Sands, Philippe/ East West Street: On the Origins of "Genocide" and "Crimes Against Humanity" (Apr 2016)/ Philippe Sands - East West Street: On the Origins of "Genocide" and "Crimes Against Humanity" (format_date_field('pubdate', 'yyyy')) format_date(field('pubdate'), 'yyyy') capitalize('asdf')

Any help would be appreciated.

[chaley]

Originally Posted by flasunco

Hey all,

I have the problem that no functions used in a template are evaluated (or parsed). Meaning, the function call itself will be part of the output.

I first tried to get the pubdate year, but now noticed that nothing seems to work (see the capitalize call).

Template:

{author_sort}/
{series:||{series_index:| #|} - }
{title} ({pubdate})/
{authors} - 
{series:||{series_index:| #|} - }
{title} 

(format_date_field('pubdate', 'yyyy'))
format_date(field('pubdate'), 'yyyy')
capitalize('asdf')

Output:

Sands, Philippe/ East West Street: On the Origins of "Genocide" and "Crimes Against Humanity" (Apr 2016)/ Philippe Sands - East West Street: On the Origins of "Genocide" and "Crimes Against Humanity" (format_date_field('pubdate', 'yyyy')) format_date(field('pubdate'), 'yyyy') capitalize('asdf')

Any help would be appreciated.

The bits in bold are not valid expressions in any form of the template language. In addition, there is no 'format_date_field' function. The template expressions before the bold bits are working, as shown by your output. I suggest you look at the template language manual.

I suspect that you want this, using Single Function Mode:

{author_sort}/
{series:||{series_index:| #|} - }
{title} ({pubdate:format_date('yyyy')})/
{authors} - 
{series:||{series_index:| #|} - }
{title}

Do note that if you are using that template as a file name template, it can generate very long names. These will be shortened by calibre to fit within the 255 character file name limit. The results of the shortening process can appear to be random, even though they aren't.

[flasunco]

Thank you very much for the help. Seems I must have missed the different modes when using the functions.

One problem left: using

({pubdate:format_date('yyyy')})

the year is output as a string including the apostrophes:

('2016')

To get rid of the apostrophes, I've tried format_number(), without success though.

Thanks in advance.

[chaley]

Originally Posted by flasunco

Thank you very much for the help. Seems I must have missed the different modes when using the functions.

One problem left: using

({pubdate:format_date('yyyy')})

the year is output as a string including the apostrophes:

('2016')

To get rid of the apostrophes, I've tried format_number(), without success though.

Thanks in advance.

Just remove the apostrophes in the format_date() call.

[flasunco]

Well now I feel dumb. Kinda confused how that parameter doesn't have to be a string, but I'm happy with the result.

Thank you.

[chaley]

Originally Posted by flasunco

Well now I feel dumb. Kinda confused how that parameter doesn't have to be a string, but I'm happy with the result.

Thank you.

As said in the template language manual in the Single Function Mode section:

Important: If you have programming experience, please note that the syntax in Single Function Mode is not what you expect. Strings are not quoted and spaces are significant. All arguments are considered to be constants; there are no expressions.

And you are welcome.