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Use switch/case control logic in your templates.

With EEs if/else advanced conditionals, each condition is parsed before being removed at the end of the template parsing process. This means if you wrap if/else tags around lots of other tags then your template will be running many unnecessary queries and functions.

Using Switchee instead you can ensure that unmatched conditions are removed from the template before they can be parsed. This can make your template significantly more efficient and your pages will render more quickly.

Switchee allows you to use regular expressions to perform advanced matching on case conditions. Like PHPs switch/case, Switchee supports a default value.

Example:

{exp:switchee variable = "{variable_to_test}" parse="inward"}
    
    {case value="value1"}
        Content to show
    {/case}
    
    {case value="value2" default="Yes"}
        Content to show
    {/case}
    
    {case value="value3"}
        Content to show
    {/case}
 
{!-- detect pagination, for example --}
 {case value="#^P(\\d+)$#|''"}
        Use regular expressions enclosed by hashes #regex#
        Be careful to encode the following reserved characters as follows:
        { = & #123;
        | = & #124;
        } = & #125;
        Use '' to represent an empty string
    {/case}
  
{/exp:switchee}

Note that ‘default’ can also be used on it’s own:

{case default="Yes"}

Switchee v2.0.1 (beta) - now fully nestable - please help me test:
https://github.com/croxton/Switchee/blob/develop/pi.switchee.php

Download Switchee

Switchee Links

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This entry was last updated January 27, 2012, 7:35 am.

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