Conditional Global Variables OR simply not working

Question

I've got

{if segment_3 == "desc" OR segment_4 == "desc"}

and EE is just ignoring it or not parsing it or something. I can try

{if segment_3 == "desc" || segment_4 == "desc"}

and that doesn't work either. However, if i have {if segment_3 == "desc"} on it's own, that works fine.

What's going on here huh?

More of the code around this, it's in a channel:entries tag and it's to define whether a orderby and sort paramater is applied:

{exp:channel:entries
channel="my_channel"
limit="15"
paginate="bottom"
{if segment_3 != "asc" OR segment_4 != "desc"} category={segment_3_category_id} {/if}
{if segment_3 == "desc" || segment_4 == "desc"} orderby="woa-price" sort="desc"{/if}
{/channel:entries}

Answer 1

This is a parse order issue. The advanced conditional gets parsed after the channel entries tag. Try something like this:

{exp:channel:entries
channel="my_channel"
limit="15"
paginate="bottom"
category="{if segment_3 != "asc"}{segment_3_category_id}{/if}{if segment_4 != "desc"}{segment_3_category_id}{/if}"
orderby="{if segment_3 == "desc"}woa-price{/if}{if segment_4 == "desc"}woa-price{/if}"
sort="{if segment_3 == "desc"}desc{/if}{if segment_4 == "desc"}desc{/if}"
{/channel:entries}

Not sure if those conditions will match the URLs that you've got setup, but that is how you will have to do it. You need to use simple conditionals inside of the channel entries parameters.

Answer 2

You're running into a parse order issue here. This is because when you have multiple comparison operators in a conditional, that's an advanced conditional. Advanced conditionals are parsed after module tags (like channel:entries).

This solution might work for you though - use preload_replace variables:

{if segment_3 == 'desc'}
    {preload_replace:orderby="woa-price"}
    {preload_replace:sort="desc"}
{/if}
{if segment_4 == 'desc'}
    {preload_replace:orderby="woa-price"}
    {preload_replace:sort="desc"}
{/if}
{preload_replace:orderby="date"}
{preload_replace:sort="asc"}

Then you can use orderby="{orderby}" and sort="{sort} in your channel:entries tag.

This should work because these are simple conditionals, so they are parsed early, and because preload_replace variables saved based on their first parsed instance (so if your conditionals are met, the later declarations that are outside of the conditionals are ignored).

Answer 3

It may be treating the simple conditional and the complex conditional differently. Maybe try:

{if '{segment_3}' == "desc" OR '{segment_4}' == "desc"}

See if that then parses.