Re: Performance using session, passing data from one request to another, use js or not? Best practice?

[Thomas Guettler]

Tim Daniel schrieb:
> I read something that it would be more
> efficient to store only the query and doing pickle?? I don't know how
> to do that, I've been looking in the docs and other posts but no clear
> explanation. So what I really want to know: which is the best way of
> handling this problem?
I have my own paginator, too.

I use request.GET and create a new URL with the item
'page_number' changed.

Here is a snippet. It disables the [next] link, if there is no next page.


    qs=dict(request.GET)
    def qs2url(qs):
        new={}
        for key, value in qs.items():
            if isinstance(value, (list, tuple)):
                value=[v.encode('utf8') for v in value]
            elif isinstance(value, (int, long)):
                value=str(value)
            else:
                value=value.encode('utf8')
            new[key]=value
        return escape(django.http.urlencode(new, doseq=True))
    if page.has_next():
        qs['page_number']=page_number+1
        next='<a href="./?%s">&gt;</a>' % qs2url(qs)
        qs['page_number']=paginator.num_pages
        last='<a href="./?%s">&gt;&gt;</a>' % qs2url(qs)
    else:
        next='&gt;'
        last='&gt;&gt;'
    if page.has_previous():
        qs['page_number']=page_number-1
        prev='<a href="./?%s">&lt;</a>' % qs2url(qs)
        qs['page_number']=1
        first='<a href="./?%s">&lt;&lt;</a>' % qs2url(qs)
    else:
        prev='&lt;'
        first='&lt;&lt;'
   
    first=mark_safe(first)
    prev=mark_safe(prev)
    next=mark_safe(next)
    last=mark_safe(last)


-- 
Thomas Guettler, http://www.thomas-guettler.de/
E-Mail: guettli (*) thomas-guettler + de


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