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#1 2007-04-05 23:07:57
- joel
- Member
- Registered: 2004-11-26
- Posts: 162
Creating prev/next anchor links for navigation
Hi,
I would like to be able to navigate through my article list with an anchor link for each article with prev/next anchor-links below each article. I’m only gonna display the the articles in article_list mode – not individually.
This is basically what I wanna achieve: (my default article form)
<a name="#<txp:title />">asd</a>
<h2><txp:title /></h2>
<txp:body />
<p><a href="#<txp:prev_title />">Previuos</a> | <a href="#<txp:next_title />">Next</a></p>
<txp:prev_title />
This doesn’t work though!
If this isn’t possible with txp-tags, is it then possible to achieve this by using some php-code with the variables for prev_title and next_title?
Any help is highly appreciated! :)
Thanks!
Last edited by joel (2007-04-07 07:57:34)
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#2 2007-04-06 21:22:02
- joel
- Member
- Registered: 2004-11-26
- Posts: 162
Re: Creating prev/next anchor links for navigation
In taghandlers.php I’ve found something interesting (from line 1065):
// ------------------------------------------------------------- // link to next article, if it exists
function link_to_next($atts, $thing)
{
global $id, $next_id, $next_title;
extract(lAtts(array( 'showalways' => 0, ), $atts));
if (intval($id) == 0)
{
global $thisarticle, $s;
extract(getNextPrev(
@$thisarticle['thisid'],
@strftime('%Y-%m-%d %H:%M:%S', $thisarticle['posted']),
@$s
));
}
if ($next_id)
{
$url = permlinkurl_id($next_id);
if ($thing)
{
$thing = parse($thing);
return '<a rel="next" href="'.$url.'"'. ($next_title != $thing ? ' title="'.$next_title.'"' : ''). '>'.$thing.'</a>'; }
return $url; }
return ($showalways) ? parse($thing) : ''; }
I tried to change the return '<a rel="next" href="'.$url.'"'. to return '<a rel="next" href="#'.$next_id.'"'. to output to an “anchored #id” but nothing happend. Can anybody please point me in the right direction here? I dont know much about php… :)
Last edited by joel (2007-04-06 21:25:04)
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#3 2007-04-07 12:20:34
- joel
- Member
- Registered: 2004-11-26
- Posts: 162
Re: Creating prev/next anchor links for navigation
Sorry for the bump – I know it’s easter and all but I’m quite desperat over here… I could really use some help :)
Thanx in advance!
Last edited by joel (2007-04-07 12:34:30)
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Re: Creating prev/next anchor links for navigation
Try not to modify the core – just use <txp:php>echo 'hello world';</txp:php> tags. Check out the global variables reference. You’ll want ['pretext']['next_id'] and ['pretext']['prev_id']. Ignore the next and previous titles and use ID’s in your form to simplify. Here’s a starting point:
<h3 id="article_<txp:article_id />">
<txp:title />
</h3>
<txp:body />
<p>
<txp:php>
echo '<a href="#article_'.$GLOBALS['pretext']['prev_id'].'">Previous</a> | <a href="#article_'.$GLOBALS['pretext']['next_id'].'">Next</a>';
</txp:php>
</p>Last edited by jm (2007-04-07 13:02:12)
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#5 2007-04-07 15:32:32
- joel
- Member
- Registered: 2004-11-26
- Posts: 162
Re: Creating prev/next anchor links for navigation
Thanks for the tips jm!
The reason why I need the next/prev-ID’s is that each article shall lead to the next one. Everything will be displayed in article-list-mode.
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#6 2007-04-07 15:51:13
- joel
- Member
- Registered: 2004-11-26
- Posts: 162
Re: Creating prev/next anchor links for navigation
Unfortunately the code above only outputs the given html. Not the variables.
<p><a href="#article_">Previous</a> | <a href="#article_">Next</a></p>
I need it to be something like:
<p><a href="#article_prev_title_or_id">Previous</a> | <a href="#article_next_title_or_id">Next</a></p>
Is this possible?
Thanks again! :)
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Re: Creating prev/next anchor links for navigation
I think the ‘prev/next_id’ variables are not defined in an article list, so perhaps this works (not tested):
<txp:php>
global $thisarticle, $s;
$Posted = safe_field('Posted', 'textpattern', 'ID='.$thisarticle['thisid']);
$pn = getNextPrev($thisarticle['thisid'] , $Posted, $s);
if ($pn['prev_id']) echo '<a href="#article_'.$pn['prev_id'].'">Previous</a>';
if ($pn['prev_id'] and $pn['next_id']) echo ' | ';
if ($pn['next_id']) echo '<a href="#article_'.$pn['next_id'].'">Next</a>';
</txp:php>However, this won’t work when the article list spans multiple pages, because the first prev link and the last next link would then point to articles on a different page.
Last edited by ruud (2007-04-07 17:42:21)
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#8 2007-04-07 18:09:52
- joel
- Member
- Registered: 2004-11-26
- Posts: 162
Re: Creating prev/next anchor links for navigation
ruud wrote:
I think the ‘prev/next_id’ variables are not defined in an article list, so perhaps this works (not tested):
<txp:php>
global $thisarticle, $s;
$Posted = safe_field('Posted', 'textpattern', 'ID='.$thisarticle['thisid']);
$pn = getNextPrev($thisarticle['thisid'] , $Posted, $s);
if ($pn['prev_id']) echo '<a href="#article_'.$pn['prev_id'].'">Previous</a>';
if ($pn['prev_id'] and $pn['next_id']) echo ' | ';
if ($pn['next_id']) echo '<a href="#article_'.$pn['next_id'].'">Next</a>';
</txp:php>However, this won’t work when the article list spans multiple pages, because the first prev link and the last next link would then point to articles on a different page.
Thanks ruud! This really made the job!!!
Multiple pages is not a problem since I will display all the articles on one list-page.
Once again, many many thanks! :)
Last edited by joel (2007-04-07 18:10:11)
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