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Smarty
The discussions here are for Smarty, a template engine for the PHP programming language.
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ping
Smarty Rookie
Joined: 07 Jan 2005
Posts: 7
Location: NoVa
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 Posted: Tue Mar 15, 2005 6:54 pm Post subject: Recursion |
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I'm writing a little function plugin for my postnuke module. I want to make it a recursive function, that is, call itself from within itself if a certain condition is true, then return the same information. I think I've got everything set up but the call back to the function. Is it possible to do this from within the a function?
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boots
Administrator
Joined: 16 Apr 2003
Posts: 5613
Location: Toronto, Canada
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| Posted: Tue Mar 15, 2005 7:08 pm Post subject: |
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If its in your plugin, then it is just PHP and so yes, of course. You just need to figure out a way to deal with the flags to stop the recursion. If it is in template, there is a plugin for that presented in the Tips & Tricks forum. It would probably be helpful if you posted some relevant code  |
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ping
Smarty Rookie
Joined: 07 Jan 2005
Posts: 7
Location: NoVa
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| Posted: Tue Mar 15, 2005 7:23 pm Post subject: |
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The thread I saw seemed to have almost the opposite problem. I can get it to call the function again (yay!) but it's not passing the variable.
| Code: | function smarty_function_track_proposalsdisplayitem($params, &$smarty)
{
extract($params);
unset($params);
...
if ($item['original']<>0){
$item=$item['orgitem'];
$displayitem.=smarty_function_track_proposalsdisplayitem($item);
}
return $displayitem;
} |
I'm pretty sure I'm passing the parameters wrong, but I've no idea how to fix that. Any advice?
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ping
Smarty Rookie
Joined: 07 Jan 2005
Posts: 7
Location: NoVa
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| Posted: Tue Mar 15, 2005 8:10 pm Post subject: |
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I took a step outside the box to solve this one. The Postnuke stuff was confusing me, so I added another function to the mandatory function and used recursion on THAT function. So I came up with this elegant little bit of coding:
| Code: | //My happy recursive function
function recurseit($item)
{
$tableit = "<table>";
$tableit .= "<tr><td align=\"right\">"._TITLE.":</td><td align=\"left\">".$item['p_title']."</td></tr>\n";
$tableit .= "<tr><td align=\"right\">"._DURATION.": </td><td align=\"left\">".$item['duration']."</td></tr>\n";
$tableit .= "<tr><td align=\"right\">"._INSTITUTE.": </td><td align=\"left\">".$item['institute']."</td></tr>\n";
$tableit .= "<tr><td align=\"right\">"._ADDRESS.": </td><td align=\"left\">".$item['address']."</td></tr>\n";
$tableit .= "<tr><td align=\"right\">"._PHONE.": </td><td align=\"left\">".$item['phone']."</td></tr>\n";
$tableit .= "<tr><td align=\"right\">"._FAX.": </td><td align=\"left\">".$item['fax']."</td></tr>\n";
$tableit .= "</table>";
if ($item['original']<>0){
$tableit.="<h4>Original proposal</h4>";
$item=$item['orgitem'];
$tableit.=recurseit($item);
}
return $tableit;
}
/**
* Smarty function to display admin links for the track_proposals module
* based on the user's permissions
*
*/
function smarty_function_track_proposalsdisplayitem($params, &$smarty)
{
extract($params);
unset($params);
$displayitem=recurseit($item);
return $displayitem;
}
?> |
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