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Conditional best practice question

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By: antonio
Date: 2006-11-18
Time: 19:48

Conditional best practice question

Hi
I am a new user to TBS but love it so far. I am not sure however how to best implement the following conditionals (for a small navigation menu) on the template side... and have been quite confused about it:

if(empty($selection)){
    echo "<b>all</b> | \n";
}else{
    echo "<a href=\"?subcat=$subcat&sort=$sort\">all</a> | \n";
}
if($selection=='offered'){
    echo "<b>offered</b> | \n";
}else{
    echo "<a href=\"?subcat=$subcat&sort=$sort&selection=offered\">offered</a> | \n";
}
if($selection=='wanted'){
    echo "<b>wanted</b>\n";
}else{
    echo "<a href=\"?subcat=$subcat&sort=$sort&selection=wanted\">wanted</a>\n";
}


Advice would be most appreciated.
Thanks
By: TomH
Date: 2006-11-18
Time: 23:22

Re: Conditional best practice question

The php logig belongs in the php file -- no echo there
like this maybe, try it...
if(empty($selection)){
$select_var= "<b>all</b> | \n";
}else{
$select_var= "<a href=\"?subcat=$subcat&sort=$sort\">all</a> | \n";
}
if($selection=='offered'){
$select_var= "<b>offered</b> | \n";
}else{
$select_var= "<a href=\"?subcat=$subcat&sort=$sort&selection=offered\">offered</a> | \n";
}
if($selection=='wanted'){
$select_var= "<b>wanted</b>\n";
}else{
$select_var= "<a href=\"?subcat=$subcat&sort=$sort&selection=wanted\">wanted</a>\n";
}

Then in your template
[var.select_var;htmlconv=no]
By: antonio
Date: 2006-11-19
Time: 20:06

Re: Conditional best practice question

Thanks TomH... that would indeed work. I was thinking the best practice would be to have the conditionals and all html on the template side. Guess not then.

Thanks again.
By: TomH
Date: 2006-11-19
Time: 22:43

Re: Conditional best practice question

Well, you can do that easily -- just read the doco's and see the examples on conditional blocks.

But you do not place PHP code in the template file, you use the TBS conditional  block  syntax.
By: Skrol29
Date: 2006-11-19
Time: 23:33

Re: Conditional best practice question

In pure HTML, it could be something like this:

<b>all[onshow_1;block=b;if [var.selection]='']</b>
<a href=\"?subcat=[var.subcat]&sort=[var.sort]\">all[onshow_1;block=a;default]</a>
|
<b>offered[onshow_2;block=b;if [var.selection]='offered']</b>
<a href=\"?subcat=[var.subcat]&sort=[var.sort]&selection=offered\">offered[onshow_2;block=a;default]</a>
|
<b>wanted[onshow_3;block=b;if [var.selection]='wanted']</b>
<a href=\"?subcat=[var.subcat]&sort=[var.sort]&selection=wanted\">wanted[onshow_3;block=a;default]</a>
By: antonio
Date: 2006-11-20
Time: 00:53

Re: Conditional best practice question

NICE!! Thanks Skrol29! That's exactly what I meant! :)

Minor corrections...

- 'if' doesn't work in there and should be replaced by 'when' since it is a block.
- all '\' should be removed

... but I got the general idea behind the syntax.

Guess I will have to look in the manual a bit more on how to use and what can be accomplished with onshow and onload. Great stuff!

PS: Is this method versus the single var one much slower?
By: Skrol29
Date: 2006-11-20
Time: 02:49

Re: Conditional best practice question

> PS: Is this method versus the single var one much slower?

Using [onshow_3;when ...] and [onshow_3;default;...] is a bit faster for execution but also shorter to code.