Conditional Template Variable

37 Posts

natedogg3304 Reply #1, 18 years, 5 months ago

Hello-

I have TV that is setup for an image. What I want to do is write a conditional statement that checks to see if an image path is present and if it is it displays the image, but if not it doesn’t display anything.

I am not a PHP developer, so I basically made up this code and put it in a snippet called CondImage, although I know it is wrong:

<?php
$image = [*sidebarimage*] 

if $image == "" {
} else {
<img src="[*sidebarimage*]" alt="" />
}
?>

Then I would just call the snippet [[CondImage?]] from within my template. Any help straightening me out would be appreciated.

Thanks

2,310 Posts

bunk58 Reply #2, 18 years, 5 months ago

One way I’ve used is have a TV for your image link say named "ImageLink"
Create your snippet:

if( $TVarray = $modx->getTemplateVarOutput(array(ImageLink)) ){ $tvOutput = $TVarray[ImageLink];
if(empty($tvOutput)) return '';
else return ''.$tvOutput.''; };

Assign the the TV to your template, add the tag [*ImageLink*] wherever you want the image to appear.
Add the call to your new snippet in the template.
If you add a path to an image in the "ImageLink" TV it should appear, if the TV is empty then nothing will.
EDIT - changed to a snippet

37 Posts

natedogg3304 Reply #3, 18 years, 5 months ago

Thanks for the help! but, I haven’t gotten it to work yet.

I have a TV for the image path called: [*sidebarimage*]

Then I created a snippet and added your code to it called: [[CondImage]]

then in my template I have something like:

<div class="navbottom" >[[CondImage]]<img src="[*sidebarimage*]" alt="" border="0" /></div>

Can you help/explain to me what I did wrong here.

Thanks

2,310 Posts

bunk58 Reply #4, 18 years, 5 months ago

Sorry for the confusion the snippet looks for content in the TV.
If you have

<img src="path-to.jpg" alt="" border="0" />

in the TV and

<div class="navbottom" >[[CondImage]]</div>

in the template/page then if there is a path it will display the image.
If not then the <div> would be empty.

37 Posts

natedogg3304 Reply #5, 18 years, 5 months ago

Yep, that did it. Thanks a ton

2,310 Posts

bunk58 Reply #6, 18 years, 5 months ago

Glad you got it working.