[wp-hackers] Can't use the same conditional tag twice?

[John Blackbourn]

I've written a small library for easy multiple loops which avoids
exactly these kinds of problems. I'll clean it up and see if I can get
it released next week.

John

2009/9/5 Bryan Harley <bryanharley at gmail.com>:
> Thanks Jeremy, that explains it!
>
>
> On Fri, Sep 4, 2009 at 9:11 AM, Jeremy Clarke <jer at simianuprising.com>wrote:
>
>> Bryan,
>>
>> query_posts() effectively says to WordPress "I know you THOUGHT you
>> should load these XYZ posts (home page, category listing, single
>> article, whatever), but actually what this page *IS* is something
>> else, and i'll tell you what with query_posts()". When you use it you
>> completely reset the page.
>>
>> So if you are on the homepage and you do a query_posts('cat=1'); then
>> right before that line is_home() will be true but right after it will
>> be false. After that is_cat() would return true instead.
>>
>> If you need extra queries you should just use the object instead:
>>
>> $myposts = new WP_Query('cat=1');
>>
>> Then you just need a slightly modified loop:
>>
>> if ($myposts->have_posts() ) : while ($myposts->have_posts()) :
>> $myposts->the_post() ;
>>
>> Until I figured that one out I was constantly having problems with
>> conditional tags not doing what I expected. Clean up your extra
>> queries and your life will be a lot simpler.
>>
>> --
>> Jeremy Clarke | http://jeremyclarke.org
>> Code and Design | http://globalvoicesonline.org
>>
>>
>>
>>
>>
>> On Mon, Aug 31, 2009 at 8:43 PM, Bryan Harley<bryanharley at gmail.com>
>> wrote:
>> > Yes, I'm using query_posts.
>> >
>> > On Mon, Aug 31, 2009 at 1:13 AM, Dion Hulse (dd32) <wordpress at dd32.id.au
>> >wrote:
>> >
>> >> are you using query_posts()?
>> >>
>> >> query_posts overrides the current query, Its not the best way to go
>> about
>> >> what most people use it for.
>> >>
>> >> try adding wp_reset_query() iin your footer and see if that helps (for
>> >> future reference) - Or call it after query_posts is finished.
>> >>
>> >>
>> >> On Mon, 31 Aug 2009 12:37:00 +1000, Bryan Harley <bryanharley at gmail.com
>> >
>> >> wrote:
>> >>
>> >>  Peter/Jeremy,
>> >>>
>> >>> I'm using the following code in both my header and footer.
>> >>>
>> >>> <li class="<?php if ( is_home() ) { echo 'current_page_item'; } ?>"><a
>> >>> href="URLHERE">Welcome</a></li>
>> >>>
>> >>> Here's the CSS:
>> >>>
>> >>> li.current_page_item a{border-bottom: 3px solid #ec1c24;}
>> >>>
>> >>> But the border is only showing in the header, not the footer.  To
>> >>> correct this, I left my header code the same and changed the footer
>> >>> code to:
>> >>>
>> >>> <li class="<?php if ( is_front_page() ) { echo 'current_page_item'; }
>> >>> ?>"><a href="URLHERE">Welcome</a></li>
>> >>>
>> >>> That solved the problem, but I don't understand why it just didn't
>> >>> WORK in the first place.  Which lead me to believe maybe you can only
>> >>> use one conditional tag per page.
>> >>>
>> >>> -Bryan
>> >>>
>> >>>
>> >>> On Thu, Aug 27, 2009 at 10:58 AM, Jeremy Clarke<jer at simianuprising.com
>> >
>> >>> wrote:
>> >>>
>> >>>> On Wed, Aug 26, 2009 at 9:10 PM, Bryan Harley<bryanharley at gmail.com>
>> >>>> wrote:
>> >>>>
>> >>>>> It seems to me that you can't use the same conditional tag on the
>> same
>> >>>>> page twice.  Can anyone else confirm this.  Why is this so?
>> >>>>>
>> >>>>
>> >>>> In my experience this is definitely not the case. You probably have
>> >>>> some kind of other issue with your template. Conditional tags would be
>> >>>> practically useless if they were limited to once per page.
>> >>>>
>> >>>>
>> >>>> --
>> >>>> Jeremy Clarke | http://jeremyclarke.org
>> >>>> Code and Design | http://globalvoicesonline.org
>> >>>> _______________________________________________
>> >>>> wp-hackers mailing list
>> >>>> wp-hackers at lists.automattic.com
>> >>>> http://lists.automattic.com/mailman/listinfo/wp-hackers
>> >>>>
>> >>>>  _______________________________________________
>> >>> wp-hackers mailing list
>> >>> wp-hackers at lists.automattic.com
>> >>> http://lists.automattic.com/mailman/listinfo/wp-hackers
>> >>>
>> >>>
>> >>
>> >> --
>> >> --
>> >> Dion Hulse
>> >> e: contact at dd32.id.au
>> >> w: http://dd32.id.au/
>> >> m: 04 6621 9112 (+614 6621 9112)
>> >> WordPressQI: http://wordpressqi.com/
>> >>
>> >> _______________________________________________
>> >> wp-hackers mailing list
>> >> wp-hackers at lists.automattic.com
>> >> http://lists.automattic.com/mailman/listinfo/wp-hackers
>> >>
>> > _______________________________________________
>> > wp-hackers mailing list
>> > wp-hackers at lists.automattic.com
>> > http://lists.automattic.com/mailman/listinfo/wp-hackers
>> >
>> _______________________________________________
>> wp-hackers mailing list
>> wp-hackers at lists.automattic.com
>> http://lists.automattic.com/mailman/listinfo/wp-hackers
>>
> _______________________________________________
> wp-hackers mailing list
> wp-hackers at lists.automattic.com
> http://lists.automattic.com/mailman/listinfo/wp-hackers
>