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Make assign_variable conditional
- Posted by johnniefp
- June 01, 2009
- 4 people have found this tip helpful.
I’m sure we all use assign_variable at the top of our templates, with a name like assign_variable you’d think you could do something like this:
{if segment_2 == ""}
{assign_variable:my_weblog="apples"}
{if:else}
{assign_variable:header_image="{segment_2}"}
{/if}
Well you can’t! if you read the docs is stats the following:
Note to developers: In this context, the word “variable” is used simply to mean the use of an ExpressionEngine style variable in the template to substitute for some other text. It is not a “variable” in the sense of being an accessible and modifiable value held in memory. It is a simple text replacement that occurs the moment the Assign Variable tag is encountered by the template parser.
So remember: assign_variable as immutable
PHP to the rescue though.
Turn on “Allow PHP” for your template in CP Home > Templates > Template Preferences Manager
Set the “PHP Parsing Stage” to “Input” also in CP Home > Templates > Template Preferences Manager
You can then do something like this:
<?php
global $IN;
$segment = $IN->fetch_uri_segment(2);
if($segment == "") {
echo "{assign_variable:my_weblog='apples'}";
} else {
echo "{assign_variable:my_weblog='$segment'}";
}
?>
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Robert @ SD — 03:09 on 12.31.2010
Hi, I believe assign_variable is replaced by preload_replace in EE 2.0; but it seems that the php code given does not work in EE 2.0. How can I do this in EE 2.0 with preload_replace tag?
Thanks!
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