smarty assinging variable

I am trying to assing a variable in my .tpl by doing this,

{assign var="image" value="images/stores/{$location.storename|regex_replace:"/[' ']/":"-"|lower}.jpg"}

however I am getting this error,

Smarty error: [in stores/view-store.tpl line 135]: syntax error: invalid attribute name: '|lower'

How Can i stop this error but still drop the casing of the r开发者_JAVA百科eturned info to lowercase?

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Even if you take lower off you're still going to have problems. You can't have a {} block inside a {} block. Nor can you have "" nested in "".

http://www.smarty.net/docsv2/en/language.custom.functions.tpl#language.function.assign

Look at that page, check out the complex example. You'll use something like

{assign var="image" value=``}

This might also be useful for you:

http://www.smarty.net/docs/en/language.function.eval.tpl

Ultimately though, you should be doing that on the PHP side, logic and code is not meant to be in the template unless there really is no other choice.