Re: What is/is not considered to be good OO programming

Jochen Daum <jochen.daum@cans.co.nz> wrote in message news:<c6d5jv4v8gm18j1kfu1thkom2erfq9itse@4ax.com>. ..
> Hi Tony!

<snip>

> The others wrote everything I could write.
>
> My database class also supports a limit statement, I especially wrote
> it, because its such a hassle to limit with MSSQL.
>
> IMO, doesn't matter, if irt is parameter or class variable. I prefer
> parameter, because I don't like:
>
> $arith->x = 1;
> $arith->y = 2;
> $m = arith->multiply();
>
> I rather like:
>
> $m = arith->multiply(1,2);
>
> HTH, Jochen
>

The reason that I use separate variables instead of parameters on the
getData() method is that the number of possible parameters is quite
large and most of them are optional. So instead of having a long list
of parameters on the getData() method I find it easier to use a
separate set...() method whenever I DO have a value that I want to be
used. That is my personal preference. If I have a method which has a
small number of parameters then I would stick to supplying them on the
method call as you suggest.

The difference lies in the number of parameters and how many of them
are optional.

Tony Marston
http://www.tonymarston.net/

Hi Andre!
On Tue, 12 Aug 2003 17:13:09 +0000, André Næss
<andrena.spamreallysucks@ifi.uio.no> wrote:

>Tony Marston:
>
>>> Keyword arguments are very practical in this type of problem, but they
>>> are unfortunately not supported by PHP. A common workaround is to use
>>> assoc arrays to pass the parameters, something that had felt a lot
>>> cleaner had PHP supported a more practical array notation than
>>> array('a'=>1, 'b'=>2, 'c'=>3).
>>>
>>> My favorite:
>>> ['a': 1, 'b': 2, 'c': 3]
>>>
>>> André Næss
>>
>> I prefer to use the features that the language does allow and not
>> waste my time in dreaming up features that it does not.
>
>My main goal was to point out that assoc-arrays as parameters sometimes can
>be an acceptable trick and it is supported by PHP, so that's not something
>I'm dreaming up.

I think its more than a good trick.

Jochen
--
Jochen Daum - CANS Ltd.
PHP DB Edit Toolkit -- PHP scripts for building
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