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Message:* <	xx-Small x-Small Small Medium Large x-Large xx-Large Arial Courier Georgia Helvetica Impact Verdana Haettenschweiler Black Blue Brown Green Grey Orange Paper Purple Red White Yellow [quote] Maxter wrote: i'm workin on some modification of the xdirectory module and i found a problem with the use of the \|\| (or) logical operator on smarty. i will be verbose, for all that people don't knowing this module :) xdirectory pass to smarty templates the 'link' array, containing the two variables involved in the problem. these variables are $link.logourl (containing the name of the logo image for a business entry) and $link.premium (that select some additional displaying features for a business entry). if i try to set a logical operator like this, it does not work: [code] <{if $link.premium != "" \|\| Slink.logourl != "0" }> <img src="image_for_business_without_logo.jpg"> <{else}> <img src="shots/<{$link.logourl}>"> <{endif}> [/code] if i set only a 'if $link.premium or a 'if $link.logourl' conditional statement, this work fine, but setting both the variables as conditional, lets work only the $link.premium condition more clearly, a business entry without a logo will show no image because the img tag will result like this: [code] <img src="shots/"> [/code] viceversa if i set a logical operators like this, it will work: [code] <{if $link.premium == "" \|\| Slink.logourl == "0" }> <img src="shots/<{$link.logourl}>"> <{else}> <img src="image_for_business_without_logo.jpg"> <{endif}> [/code] it seems to me very strange, but maybe there is something of smarty i didn't understand... anyone can tell me if it is a problem of smarty or of the xoop's smarty implementation (o may be a my mistake? :-D ) Many thanx and sorry for my bad english :-o Max[/quote] Click the Preview to see the content in action.
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Re: problem with smarty and logical operators

by christian on 2005/5/22 23:25:11

Thousand thanks Dave, it's ok now

Re: problem with smarty and logical operators

by Dave_L on 2005/5/22 23:07:54

Quote:

<{if substr($article.headline,1,4) != "Menu"}>

This works for me. Note that substr(...,1,4) returns four characters starting at the second character of the string. For example, substr("abcdef",1,4) is "bcde".

Quote:

<{if $article.headline != "Saveurs régionales" or $article.headline != "Menu de saison"}>

This also works. But it doesn't make much sense, since the if-clause will always be true. I.e., if A != B, as they are in your case, then the expression (C != A or C != B) is a tautology (always true).

Re: problem with smarty and logical operators

by christian on 2005/5/22 20:23:34

I have the same problem with wfchannel_index.html.

This is ok
<{if $article.headline != "Saveurs régionales"}>
<{$article.headline}>
<{/if}>

But this lines are not implemented

<{if substr($article.headline,1,4) != "Menu"}>

<{if $article.headline != "Saveurs régionales" or $article.headline != "Menu de saison"}>

Have you a idea ?

Re: problem with smarty and logical operators

by Maxter on 2004/10/12 16:53:34

thanks for the answers...

Mithrandir:
yes, the Slink.logourl is a typo in the post, i checked many times the syntax :)
before posting i also tried to separate the condition with bracket, without any result :-/

Draven:
i tried also the use of OR instead of ||, again without any result, and i have read the smarty documentation many times searching for any possible idea.

I will try to reproduce this error in another page containing only the $link array or another array, to see it the error happen again.

Re:problem with smarty and logical operators

by Draven on 2004/10/12 15:44:57

Also be sure to check the smarty doc site for proper use of the || operator, my suggestion would be to use OR instead.

http://smarty.php.net/manual/en/language.function.if.php

Quote:

{* an example with "or" logic *}
{if $name eq "Fred" or $name eq "Wilma"}
...
{/if}

{* same as above *}
{if $name == "Fred" || $name == "Wilma"}
...
{/if}

{* the following syntax will NOT work, conditional qualifiers
must be separated from surrounding elements by spaces *}
{if $name=="Fred" || $name=="Wilma"}
...
{/if}

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