Kerry Wilson wrote:
I would like to enhance the foreach loop by adding next and previous
to the foreach variables.
Example usage:
{foreach from=$message.backtrace item='call' name='backtrace'}
{assign var='previous_call' value=|$smarty.foreach.backtrace.next}|
<li style='list-style: none;'>{$call.file} [{$call.line}] -
{$previous_call.class}.{$previous_call.function}(){/if}</li>
{/foreach}
In case you cannot tell I am using this to print a backtrace ( I want
it to show the method it is currently in, not the one that it is
calling ).
Where does the foreach implementation reside in source? And is this a
good thing to add to the base code?
Here is the code for the feature enhancement, it goes in
Smarty_Compiler.class.php around line 1185.
$output .= "if ({$foreach_props}['total'] > 0):\n";
$output .= " \$_values = array_values(\$_from);\n";
$output .= " foreach (\$_from as
$key_part\$this->_tpl_vars['$item']):\n";
$output .= " if( isset(
\$_values[{$foreach_props}['iteration']-1] ) ) {
{$foreach_props}['prev'] = \$_values[{$foreach_props}['iteration']-1]; }
else { {$foreach_props}['prev'] = false; }\n";
$output .= " if( isset(
\$_values[{$foreach_props}['iteration']+1] ) ) {
{$foreach_props}['next'] = \$_values[{$foreach_props}['iteration']+1]; }
else { {$foreach_props}['next'] = false; }\n";
$output .= " {$foreach_props}['iteration']++;\n";
It actually turned out to be cleaner than I expected. It would be great
if this were added to the next release so my code doesn't break when I
upgrade!
kw
--
Kerry Wilson
Lead Developer
Williams Web
kwilson@xxxxxxxxx | 423.485.4747
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