[Phpmyadmin-devel] PMA_CommonFunctions

Madhura Jayaratne madhura.cj at gmail.com
Sat Sep 15 18:23:33 CEST 2012


On Sat, Sep 15, 2012 at 9:42 PM, Dieter Adriaenssens <
dieter.adriaenssens at gmail.com> wrote:

> 2012/9/15 Madhura Jayaratne <madhura.cj at gmail.com>:
> >
> >
> > On Sat, Sep 15, 2012 at 12:32 PM, Chanaka Dharmarathna
> > <pe.chanaka.ck at gmail.com> wrote:
> >>
> >> Hi,
> >>
> >>> >> I stumbled upon this piece of code (random pick) :
> >>> >>
> >>> >>
> >>> >>
> PMA_CommonFunctions::getInstance()->backquote($_REQUEST['view']['name'])
> >>> >>
> >>> >> and it made me wonder if using a singleton for PMA_CommonFunctions
> is
> >>> >> necessary, because basicaly PMA_Commonfunctions is a collection of
> >>> >> methods, not really a 'living' object.
> >>> >> So then I had a look at the class, and I discovered that the class
> has
> >>> >> no class variables (apart from the _instance variable) and an empty
> >>> >> constructor.
> >>
> >>
> >> Exactly, that class has no properties except _instance which needed for
> >> implement this pattern for refer to the class instance itself. So this
> is
> >> not a living object.
> >>
> >> I search bit more in this kind of cases and get to know that, this kind
> of
> >> utility classes are making static. And it is faster than singleton
> class.
> >> From the both approaches our work can be done. But not the exact need
> for
> >> use singleton pattern here.
> >>
> >>>
> >>> >> So basicly this should be a static class, with static methods,
> because
> >>> >> no instance is needed for it to work.
> >>> >>
> >>> >> And the above piece of code will become :
> >>> >>
> >>> >> PMA_CommonFunctions::backquote($_REQUEST['view']['name'])
> >>> >>
> >>> >> BTW: If you convert it to a static class, don't forget to replace
> the
> >>> >> $this->method() calls by the static equivalent self::method().
> >>
> >>
> >> I'll do the necessary modifications if others think this approach is
> good.
> >>
> > I also agree that making the methods static would be the better approach.
> > Since the class contains a set of utility functions, how about renaming
> the
> > class to 'Util' on the same time? This will save a bit of line space and
> > help us fix some coding style violations.
> >
>
> Hi,
>
> I agree with using a shorter class name, but it should be 'PMA_Util'.
>
> Yes, thanks for pointing that out.

-- 
Thanks and Regards,

Madhura Jayaratne
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