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chaley · 04-24-2023, 11:41 AM

24 Apr 2023 (in calibre 6.17)

New template functions:

has_extra_data()
Code:
```
has_extra_data()
```
Returns 'Yes' if there are any extra files for the book (files in the folder data/ in the book's folder), otherwise '' (the empty string). See also the functions extra_file_names(), extra_file_size() and extra_file_modtime() This function can be used only in the GUI.

Note: this function will change in calibre 6.18
extra_file_names()
Code:
```
extra_file_names(sep)
```
Returns a sep-separated list of extra files in the book's data/ folder. See also the functions has_extra_files(), extra_file_size() and extra_file_modtime(). This function can be used only in the GUI.

Note: this function will change in calibre 6.18
extra_file_size()
Code:
```
extra_file_size(file_name)
```
Returns the size in bytes of the extra file file_name in the book's data/ folder if it exists, otherwise -1. See also the functions has_extra_files(), extra_file_names() and extra_file_modtime(). This function can be used only in the GUI.
extra_file_modtime()
Code:
```
extra_file_modtime(file_name, format_spec)
```
Returns the modification time of the extra file file_name in the book's data/ folder if it exists, otherwise -1. The modtime is formatted according to format_spec (see format_date() for details). If format_spec is the empty string, returns the modtime as the floating point number of seconds since the epoch. See also the functions has_extra_files(), extra_file_names() and extra_file_size(). The epoch is OS dependent. This function can be used only in the GUI.

04-24-2023, 11:41 AM	#100
chaley Grand Sorcerer Posts: 12,495 Karma: 8065348 Join Date: Jan 2010 Location: Notts, England Device: Kobo Libra 2	New extra book data functions 24 Apr 2023 (in calibre 6.17) New template functions: has_extra_data() Code: has_extra_data() Returns 'Yes' if there are any extra files for the book (files in the folder data/ in the book's folder), otherwise '' (the empty string). See also the functions extra_file_names(), extra_file_size() and extra_file_modtime() This function can be used only in the GUI. Note: this function will change in calibre 6.18 extra_file_names() Code: extra_file_names(sep) Returns a sep-separated list of extra files in the book's data/ folder. See also the functions has_extra_files(), extra_file_size() and extra_file_modtime(). This function can be used only in the GUI. Note: this function will change in calibre 6.18 extra_file_size() Code: extra_file_size(file_name) Returns the size in bytes of the extra file file_name in the book's data/ folder if it exists, otherwise -1. See also the functions has_extra_files(), extra_file_names() and extra_file_modtime(). This function can be used only in the GUI. extra_file_modtime() Code: extra_file_modtime(file_name, format_spec) Returns the modification time of the extra file file_name in the book's data/ folder if it exists, otherwise -1. The modtime is formatted according to format_spec (see format_date() for details). If format_spec is the empty string, returns the modtime as the floating point number of seconds since the epoch. See also the functions has_extra_files(), extra_file_names() and extra_file_size(). The epoch is OS dependent. This function can be used only in the GUI. Last edited by chaley; 04-27-2023 at 10:50 AM.