Re: RFC: On date and time

[Iago Toral <itoral igalia com>]

Hi,
On Thu, 02 Jun 2011 14:43:39 +0200, Guillaume Emont 
<guijemont igalia com> wrote:
(...)
> The solution I propose to solve these issues, and will start
> implementing right now unless some people come up with better 
> proposals,
> is the following:
>
>  - Store the _DATE and _CREATION_DATE keys as GDateTime. Since 
> GDateTime
> is generally not available/not working in language bindings, some
> wrappers will be provided to be able to set them with strings (like 
> it
> is done currently, except that format checking will be done 
> immediately)
>  - Add a GRL_METADATA_KEY_RELEASE_YEAR key that would contain an
> integer. Some other "imprecise" date keys might be needed (please
> suggest), but this is the only one I could think of for now. That 
> would
> cover things like the release year of a music album/track or the 
> release
> year of a film.

Sounds reasonable.

One question on how this should work, since _DATE and _RELEASE_YEAR are 
very related.
Are plugin developers going to do:

grl_media_set_creation_date (date)
grl_media_set_release_year (YEAR(date))

or are we going to provide something like this instead?:

plugin developer only does:
grl_media_set_creation_date (date);

and then grl_media_get_release_year just gets the year from the release 
date.

Iago