Back tick issue with nested snippets

15 Posts

irberry Reply #1, 18 years, 4 months ago

Hello

I am having a little problem with a nested snippet call on my Modx site. I have a snippet that checks if the site is been access though Facebook or not.

<?php
$output = '';

if($_SERVER['HTTP_HOST']=='apps.howirritating.com') {
 $output = $if;
} else {
 $output = $else;
}

return $output;
?>

Which works fine unless the ’if’ or ’else’ variable contain a snippet call with parameters. I seems to treat the first back tick in the snippet call as the end of the variable.

This is my call or one of the problem, this calls a different form depending on where it is requested from. (if_facebook)

[[if_facebook? &if=`Call Facebook Form`&else=`[!eForm? &formid=`AddForm` &subject=`New Addition` &to=`[email protected]` &tpl=`AddForm` &report=`AddFormReport` &invalidClass=`invalidValue` &requiredClass=`requiredValue` &cssStyle=`AddStyles`  &vericode=`1` &gotoid=`46`  !]`]]

This will output "Call Facebook Form" when accessed from Facebook but only outputs "[!eForm? " when accessed normally.

Is there away the back ticks can be escaped or does anyone know of a way I could work around this problem?

Thanks in advance
Ian

480 Posts

Taff Reply #2, 18 years, 4 months ago

I don’t think you can do it like that.

<?php

if($_SERVER['HTTP_HOST']=='apps.howirritating.com') {
 echo "Call Facebook Form";
} else {
$modx->runSnippet(
        "eForm",
        array(
            "formid" => "AddForm",
            "subject" => "New addition",
            "more" => "parameters"
        )
)
}

?>

would probably work.

I may be wrong though.

Taff

Adrian Lawley: www.adrianlawley.com

4,205 Posts

dev_cw Reply #3, 18 years, 4 months ago

Before you try that check for the alternating snippet call cache settings for embedded snippets [! [[ ]] !] If that does not work than use a "wrapper snippet" to execute the eForm snippet as Taff suggested.

[font=Verdana]Shane Sponagle | [wiki] Snippet Call Anatomy | MODx Developer Blog | [nettuts] Working With a Content Management Framework: MODx

Something is happening here, but you don't know what it is.
Do you, Mr. Jones? - [bob dylan]

15 Posts

irberry Reply #4, 18 years, 4 months ago

Magic.... thanks for the pointer .... I added a new snippet and it will now output 2 different forms depending on where it’s run from .... here it is .... only subtle differences from what you wrote:

<?php
if($_SERVER['HTTP_HOST']=='apps.howirritating.com') {

$output = "Call Facebook Form";

} else {

$output = $modx->runSnippet(
        "eForm",
        array(
            "formid" => "AddForm",
            "subject" => "New addition",
            "to" => "[email protected]", 
	    "tpl" => "AddForm", 
	    "report" => "AddFormReport", 
	    "invalidClass" => "invalidValue", 
	    "requiredClass" => "requiredValue", 
	    "cssStyle" => "AddStyles",  
	    "vericode" => "1", 
	    "gotoid" => "46"
            )
        );
}

return $output;
?>

Thanks again.

Ian