|
Smarty
WARNING: All discussion is moving to https://reddit.com/r/smarty, please go there! This forum will be closing soon. |
|
View previous topic :: View next topic |
Author |
Message |
leason Smarty n00b
Joined: 09 Sep 2003 Posts: 2
|
Posted: Tue Sep 09, 2003 2:22 pm Post subject: Here's a function to sum the contents of an array column |
|
|
I wrote this little function to show me totals for items and their costs. Here is the usage:
Code: | {sum_col array=$myArray col="myCol"} |
I am having a problem using modifiers with this function, however. I would like to be able to do this:
Code: | {sum_col array=$myArray col="myCol"|string_format:"%.2f"} |
But when I do it gives me a value of zero regardless of what it should be. Anyone know why this is happening?
Anyways, the function will return the sum of all the values of myCol in $myArray. Here is the function:
Code: | <?PHP
/*********************
This is a smarty plugin that will sum the contents of a column in an array
*********************/
function smarty_function_sum_col($params, &$smarty){
if(!isset($params['array']) || !isset($params['col'])){
$smarty->trigger_error("sum_col: missing array or col value");
return;
}
$result = 0;
foreach($params['array'] as $row){
$result += $row[$params['col']];
}
return $result;
}
?> |
Hope you like it, this is my first function. I have only been using Smarty for about three hours now. |
|
Back to top |
|
messju Administrator
Joined: 16 Apr 2003 Posts: 3336 Location: Oldenburg, Germany
|
Posted: Fri Sep 12, 2003 3:36 pm Post subject: |
|
|
i think zoran is right.
nevertheless:
your example {sum_col array=$myArray col="myCol"|string_format:"%.2f"}
applies the modifier to "myCol" (!).
if you want the modifier be applied to the plugins result do:
{sum_col|string_format:"%.2f" array=$myArray col="myCol"}
HTH
messju |
|
Back to top |
|
leason Smarty n00b
Joined: 09 Sep 2003 Posts: 2
|
Posted: Tue Sep 16, 2003 11:32 am Post subject: |
|
|
I suppose that depends on what you consider programming logic and what you consider presentation logic. If the sum of a column of numbers is for display, and has no value to the program itself, then why not make it possible to do that in the template?
However, I see your point and it is valid. I have since writing that function switched to computing the sum in PHP and passing the value to the template. My problem at the time was that I did not understand some of the finer points of the smarty engine (and still don't ).
Thanks for your replies. |
|
Back to top |
|
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|