Re: 2 questions: unique properties + history

Dear John,

Thank you for your extension of Ralf's answer, an extension indeed
looks more elegant.

Regards,
Gábor

> Hi Nagy and Ralf:
> 
> In message <[email protected]>,
> Ralf Schlatterbeck writes:
> >On Wed, Feb 24, 2021 at 02:47:59PM +0100, Nagy Gabor wrote:  
> >> multiple IDs either, I was asked to implement it.
> >> 
> >> Now I am still struggling with the Hyperdb class wrapper of the web
> >> interface. My (lame?) question is how can I access items of
> >> classes via their key property, or at least fetch the ID, like
> >> db.status.lookup("resolved").  
> >
> >You can alway access the underlying API by using db._db where the db
> >is the web hyperdb wrapper and _db is the hyperdb object.
> >
> >I don't think the hyperdb wraps the lookup class, you can still use
> >filter, something along the lines of
> >db.status.filter (None, dict (name = 'resolved'))
> >or use the hyperdb layer directly.  
> 
> In my query edit template I have:
> 
>    tal:define="queries python:db.query.filter(filterspec={'creator':
> uid})"
> 
> so I suspect:
> 
>   python:db.query.filter(filterspec={'name': 'resolved}
> 
> would work if Ralf's sugestion doesn't.
> 
> >> As I see, all operation requires the numeric ID of
> >> the item (@link@ etc.). Let's say I want to add a button "Change
> >> status to resolved" to the web page. To this end, I need the ID of
> >> "resolved" item of status class (right?). I do not want to hardcode
> >> to the HTML template that this is, let's say, 6. What is the
> >> easiest way to retrieve the ID of the status with (key property)
> >> name "resolved"? I can do it (loop through db/status/list, etc.),
> >> but none of my solutions is nice... If not necessary, I don't want
> >> to use low level methods, but if it is necessary, I will. :)  
> 
> Also you can write an extension. Add find_resolved_id.py to the
> tracker's extensions directory:
> 
>   def get_resolved_id(db):
>       id = db._db.filter(...)
>       return id
> 
>   def init(instance):
>       instance.registerUtil('getresolvedid', get_resolved_id)
> 
> call it in a template with:
> 
>   python:utils.getresolvedid(db)
> 
> this hides the uglyness and names/documents it a little bit.
> 
> --
> 				-- rouilj
> John Rouillard
> ===========================================================================
> My employers don't acknowledge my existence much less my opinions.
> 
> 
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