Save to Disk templates on per library basis?

[MontyJ]

I use 3 different "Save to Disk" setup templates for my various libraries because they each have specialized content that requires a unique save format. I have looked for a way to have each library maintain its own set of default templates but can't see a way to do it.

Presently I keep those templates in a plain text file, labeled so I know which goes to which. Then I use the drop down selection in a given library and select the correct one.

If there isn't a way to do this currently, I would like to suggest that be considered as a future added feature. I switch libraries constantly and this would sure same me some extra 'lookup' efforts!

Monty

[theducks]

It is doable (my coding skils are not quite up to this) in Program Mode

Take a look at http://manual.calibre-ebook.com/template_lang.html


class calibre.utils.formatter_functions.BuiltinCurrentLi braryName[source]

You should be able to use:
current_library_name() – return the last name on the path to the current calibre library. This function can be called in template program mode using the template “{:’current_library_name()’}”.
With a switch(val, pattern, value, pattern, value, ..., else_value)

[MontyJ]

theducks,

Thanks...my eyes are glazing over a bit, as my coding skills are mostly non-existent. But, you gave me something that might work, so I will play with it and see what I can come up with!

Monty

[eschwartz]

The problem is that save-to-disk works like the device drivers, and is a global preference (it is stored in your config data, not in the library database).

As theducks said, current_library_name() is your friend -- but if you are unsure how to use it, feel free to ask and we can write a suitable template for you.
Just tell us what you want to see.

Note: There is a dedicated help sticky in this subforum with various tips and things that people have asked for in the past.

[eschwartz]

The basic idea looks like this:

program:

switch(
    current_library_name(),
    'libraryname1',
    template1,
    'libraryname2',
    template2,
    'libraryname3',
    template3,
    fallback_template
)

[MontyJ]

Originally Posted by eschwartz

The basic idea looks like this:

program:

switch(
    current_library_name(),
    'libraryname1',
    template1,
    'libraryname2',
    template2,
    'libraryname3',
    template3,
    fallback_template
)

Thanks for this! I need to learn how to do this, at least in some minimal form. Let me see how far I get; I will probably be back with some noob type questions, LoL.

[theducks]

That will be new template (after you substitute the Library names and the corresponding templates)
do pay attention to Library name Case. it must match reality

[fidvo]

FWIW, here is my Save to Disk template:

program:

switch(current_library_name(),
  'Library - Main',
  template('{#path:re(\.,/)}/{series_index:0>3s||_}{#subseries}{#subseries_index:0>3s||_}{title}'),
  'Library - Special',
  template('{#path:re(\.,/)}/{series_index:0>3s||_}{title}'),
  'Library - In Progress',
  template('{author_sort}/{series}/{series_index:0>3s}_{title}'),
  template('{#path:re(\.,/)}/{#seriesid:re(\.,/)}{#titleid:re(\.,/)}'))

Note that "path" is a custom field I set up, not the path to the file. (In hindsight I should have named it something else)

[eschwartz]

Originally Posted by fidvo

FWIW, here is my Save to Disk template:

program:

switch(current_library_name(),
  'Library - Main',
  template('{#path:re(\.,/)}/{series_index:0>3s||_}{#subseries}{#subseries_index:0>3s||_}{title}'),
  'Library - Special',
  template('{#path:re(\.,/)}/{series_index:0>3s||_}{title}'),
  'Library - In Progress',
  template('{author_sort}/{series}/{series_index:0>3s}_{title}'),
  template('{#path:re(\.,/)}/{#seriesid:re(\.,/)}{#titleid:re(\.,/)}'))

Note that "path" is a custom field I set up, not the path to the file. (In hindsight I should have named it something else)

Invoking templates inside GPM is ugly (and slower) why not use this?

program:

# Initialize repetitive and/or complicated values for later use.
path = re(
	field('#path'),
	'\.',
	'/'
);
seriesid = re(
	field('#seriesid'),
	'\.',
	'/'
);
titleid = re(
	field('#titleid'),
	'\.',
	'/'
);

sidx = finish_formatting(
	field('series_index'),
	'0>3s',
	'',
	'_'
);
subsidx = finish_formatting(
	field('#subseries_index'),
	'0>3s',
	'',
	'_'
);

# Compute final return value.
switch(
	current_library_name(),
	'Library - Main',
	strcat(
		path, '/', sidx, field('#subseries'), subsidx, field('title')
	),
	'Library - Special',
	strcat(
		path, '/', sidx, field('title')
	),
	'Library - In Progress',
	strcat(
		field('author_sort'), '/', field('series'), '/', sidx, field('title')
	),
	strcat(
		path, '/', seriesid, titleid
	)
)

[fidvo]

Originally Posted by eschwartz

Invoking templates inside GPM is ugly (and slower) why not use this?

program:

# Initialize repetitive and/or complicated values for later use.
path = re(
	field('#path'),
	'\.',
	'/'
);
seriesid = re(
	field('#seriesid'),
	'\.',
	'/'
);
titleid = re(
	field('#titleid'),
	'\.',
	'/'
);

sidx = finish_formatting(
	field('series_index'),
	'0>3s',
	'',
	'_'
);
subsidx = finish_formatting(
	field('#subseries_index'),
	'0>3s',
	'',
	'_'
);

# Compute final return value.
switch(
	current_library_name(),
	'Library - Main',
	strcat(
		path, '/', sidx, field('#subseries'), subsidx, field('title')
	),
	'Library - Special',
	strcat(
		path, '/', sidx, field('title')
	),
	'Library - In Progress',
	strcat(
		field('author_sort'), '/', field('series'), '/', sidx, field('title')
	),
	strcat(
		path, '/', seriesid, titleid
	)
)

You're right; that does look a lot cleaner, especially since I tend to use similar custom fields in all my libraries, so setting those values outside the main code block makes sense.

I'll have to give this a try.