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#1 2008-07-31 22:17:50
- gesiwuj
- Member
- Registered: 2008-07-01
- Posts: 20
Show excerpt of "next" page & conditional for oldest/newest article
Sorry if this has been answered before, but I have searched the forums for 10 minutes and not found a solution.
Basically, it’s simple enough to use the <txp:next_title /> (or of course <txp:previous_title />) tag to show the title of the next article (or of the previous article). Is there a similar way to show the excerpt of the previous and next article?
Secondly, I understand that if_first_article and if_last_article don’t actually show the first and latest article in a given section but only the first and last in the list. Is there a way to check if the article is either the first or the latest?
The above two features are for a section at the bottom of individual post pages which have links to the previous and next article (with title & excerpt) but it would show a message if the current article is the oldest or the newest (eg: it’d say, “This is the newest article. Check back soon because we update frequently, and be sure to check out the archives too”). It would also have a similar message for the oldest of course.
Thankyou in advance for your responses!
Last edited by gesiwuj (2008-07-31 23:06:05)
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#2 2008-07-31 23:55:01
- rsilletti
- Moderator
- From: Spokane WA
- Registered: 2004-04-28
- Posts: 707
Re: Show excerpt of "next" page & conditional for oldest/newest article
It is easily done with a brief plugin and a simple hack of publish.php. The problem I see is that articles, by design, all have titles, but not all articles have excerpts; the links are still there if any text is added by default whether there is a link or not but nothing else when no excerpt is used.
This is for linking previous and next excerpts in the place of titles.
Last edited by rsilletti (2008-07-31 23:56:41)
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#3 2008-08-01 00:16:53
- uli
- Moderator
- From: Cologne
- Registered: 2006-08-15
- Posts: 4,306
Re: Show excerpt of "next" page & conditional for oldest/newest article
It is easily done with a brief plugin and a simple hack of publish.php.
Iff ffat am … *wipe off drool* … is that an announcement? If so, could I simply change it to show custom fields? :)
In bad weather I never leave home without wet_plugout, smd_where_used and adi_form_links
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#4 2008-08-01 00:40:31
- uli
- Moderator
- From: Cologne
- Registered: 2006-08-15
- Posts: 4,306
Re: Show excerpt of "next" page & conditional for oldest/newest article
Rick, sorry: There’s jmd_neighbor. And it were more sorting criteria I was after, not the cf’s. I’ll go to sleep now ;)
gesiwuj, try it out.
In bad weather I never leave home without wet_plugout, smd_where_used and adi_form_links
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#5 2008-08-01 00:54:26
- rsilletti
- Moderator
- From: Spokane WA
- Registered: 2004-04-28
- Posts: 707
Re: Show excerpt of "next" page & conditional for oldest/newest article
The patch is untested and speculative – it works for me, at least on the surface. The tags that follow it are reliable enough, but if there is a good plugin out there I would certainly use that instead. (custom fields? :)
**************************
Index: /Library/Apache2/htdocs/adev/textpattern/publish.php
===================================================================
--- /Library/Apache2/htdocs/adev/textpattern/publish.php (revision 2958)
+++ /Library/Apache2/htdocs/adev/textpattern/publish.php (working copy)
@@ -911,7 +911,7 @@
$type = ($type == '>') ? '>' : '<';
$safe_name = safe_pfx('textpattern');
$q = array(
- "select ID, Title, url_title, unix_timestamp(Posted) as uposted
+ "select ID, Title, Excerpt, url_title, unix_timestamp(Posted) as uposted
from ".$safe_name." where Posted $type '".doSlash($Posted)."'",
($s!='' && $s!='default') ? "and Section = '".doSlash($s)."'" : filterFrontPage(),
'and Status=4 and Posted < now() order by Posted',
@@ -937,6 +937,7 @@
$out['next_title'] = ($thenext) ? $thenext['Title'] : '';
$out['next_utitle'] = ($thenext) ? $thenext['url_title'] : '';
$out['next_posted'] = ($thenext) ? $thenext['uposted'] : '';
+ $out['next_excerpt']= ($thenext) ? $thenext['Excerpt'] : '';
$theprev = getNeighbour($Posted,$s,'<');
$out['prev_id'] = ($theprev) ? $theprev['ID'] : '';
@@ -943,6 +944,7 @@
$out['prev_title'] = ($theprev) ? $theprev['Title'] : '';
$out['prev_utitle'] = ($theprev) ? $theprev['url_title'] : '';
$out['prev_posted'] = ($theprev) ? $theprev['uposted'] : '';
+ $out['prev_excerpt']= ($theprev) ? $theprev['Excerpt'] : '';
if ($theprev) {
$cache[$theprev['ID']] = $theprev;
*****************************
// link to next article, if it exists
function ras_link_to_next($atts, $thing = NULL)
{
global $id, $next_id, $next_excerpt;
extract(lAtts(array(
'showalways' => 0,
), $atts));
if (intval($id) == 0)
{
global $thisarticle, $s;
assert_article();
extract(getNextPrev(
@$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_excerpt != $thing ? ' title="'.$next_excerpt.'"' : '').
'>'.$thing.'</a>';
}
return $url;
}
return ($showalways) ? parse($thing) : '';
}
// -------------------------------------------------------------
// link to previous article, if it exists
function ras_link_to_prev($atts, $thing = NULL)
{
global $id, $prev_id, $prev_excerpt;
extract(lAtts(array(
'showalways' => 0,
), $atts));
if (intval($id) == 0)
{
global $thisarticle, $s;
assert_article();
extract(getNextPrev(
$thisarticle['thisid'],
@strftime('%Y-%m-%d %H:%M:%S', $thisarticle['posted']),
@$s
));
}
if ($prev_id)
{
$url = permlinkurl_id($prev_id);
if ($thing)
{
$thing = parse($thing);
return '<a rel="prev" href="'.$url.'"'.
($prev_excerpt != $thing ? ' title="'.$prev_excerpt.'"' : '').
'>'.$thing.'</a>';
}
return $url;
}
return ($showalways) ? parse($thing) : '';
}
// -------------------------------------------------------------
function next_excerpt()
{
return $GLOBALS['next_excerpt'];
}
// -------------------------------------------------------------
function prev_excerpt()
{
return $GLOBALS['prev_excerpt'];
}
// -------------------------------------------------------------Offline
#6 2008-08-01 01:38:37
- rsilletti
- Moderator
- From: Spokane WA
- Registered: 2004-04-28
- Posts: 707
Re: Show excerpt of "next" page & conditional for oldest/newest article
Given a brief look at jmd_neighbor it appears to draw content of type article (most anything you can use in an article form) from neighboring articles, which may be all you need. It doesn`t provide navigation linkage itself, but if you lay out your tags properly link_to_next and link_to_prev will do that for you.
All I`m doing with the patch is retrieving an Excerpt along with the rest of the values and cloning existing tags and tailoring them to look for that instead, not really a good development method but it may work for a specific case.
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#7 2008-08-02 11:52:57
- gesiwuj
- Member
- Registered: 2008-07-01
- Posts: 20
Re: Show excerpt of "next" page & conditional for oldest/newest article
I’ll try that plugin. Don’t worry, I don’t need the excerpt to be a link (I have a title as a link anyway). So does anyone have a solution for the second problem at all?
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#8 2008-08-02 12:17:28
- els
- Moderator
- From: The Netherlands
- Registered: 2004-06-06
- Posts: 7,458
Re: Show excerpt of "next" page & conditional for oldest/newest article
gesiwuj wrote:
So does anyone have a solution for the second problem at all?
I assume you are not sorting the articles by date posted? (since in that case if_first and if_last_article would actually give you the oldest and the latest article)
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#9 2008-08-02 14:20:51
- gesiwuj
- Member
- Registered: 2008-07-01
- Posts: 20
Re: Show excerpt of "next" page & conditional for oldest/newest article
This is on an individual article’s page. At the bottom are three “boxes” – one with the previous article, one with current article stuff (just as a reference point) and one with the next article. When I use <txp:if_first_article> it always returns true even if I’m not on the first article. The same for <txp:if_last_article>
PS. jmd_neighbour is working perfectly for problem 1! Thankyou very much!
Last edited by gesiwuj (2008-08-02 14:21:29)
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#10 2008-08-02 18:52:09
- els
- Moderator
- From: The Netherlands
- Registered: 2004-06-06
- Posts: 7,458
Re: Show excerpt of "next" page & conditional for oldest/newest article
gesiwuj wrote:
it always returns true even if I’m not on the first article.
I see. Yes of course it would do that. Did you have a look at smd_if?
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