Templates IF statement

22 Posts

kennybrijs Reply #1, 14 years, 7 months ago

Is it possible to add an IF statement in MODX (revo) templates, and how?
Or is there a better solution for this kind of problem?

I just don't want my containing HTML to appear if the certain field is not filled in.

Like:

IF page has description{
   <certain>
      <html>[[*description]]</html>
   </certain>
}

I came acros this: http://rtfm.modx.com/display/revolution20/Input+and+Output+Filters+%28Output+Modifiers%29

but it seems to me that's for modifying output OF a parameter, not to output certain code IF a certain item exists.

Thx in advance, grts

This question has been answered by microcipcip. See the first response.

24,544 Posts

BobRay Reply #2, 14 years, 7 months ago

You don't need the if. I think this will do it:

<html>[[*description:isempty:then=``:else=`[[*description]]`]]</html>

Depending on how you're using it, you might rather use the pagetitle or something else if it's empty.

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22 Posts

kennybrijs Reply #3, 14 years, 7 months ago

Thx for the reply

My description will need certain markup AROUND it for styling purposes, and I don't want that HTML to appear in the document if the description is not filled in.

Is this possible:

[[*description:isempty:then=``:else=`
   <div class="description">
      [[*description]]
   </div>
`]]

And is it the best solution?

Thx!

24,544 Posts

BobRay Reply #4, 14 years, 7 months ago

Well, the best solution is almost always a custom snippet, but that should work.

The snippet would look something like this:

[[!MyDescription]]

<?php
/* MyDescription snippet */

$description = $modx->resource->get('description');

return empty($description) ? "" : 
'<div class="description">'
    .  $description . 
'</div>';

Or slightly less efficient, but separating code and content better (with the html in a Tpl chunk):

/* MyDescription snippet */

$description = $modx->resource->get('description');

return empty($description) ? "" : 
   $modx->getChunk('DesChunk', array('md,description' => $description));

DesChunk Tpl Chunk:

<div class="description">
      [[+md.description]]
</div>

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discuss.answer

1,098 Posts

microcipcip Reply #5, 14 years, 7 months ago

Hi,

I think you are looking for the If Snippet or the Andif Snippet.

Here is an example using your code:

[[If? 
	&subject=`[[*description]]` 
	&operator=`notempty` 
	&then=`

   <div class="description">
      [[*description]]
   </div>

`]]

Jertix.org -> Web Design & Development, Motion Graphics | Follow me on Twitter | MODx Tutorials (in Italiano) | MODx Snippets (English)

589 Posts

Eoler Reply #6, 14 years, 7 months ago

This is one of the first PHx modifiers that I wrote back in Evolution, and it could be used as "output filter" snippet in Revo:

<?php
$output = trim($input);
if (!empty($output)) {
  if ($pos = strpos($options, " ")) {
    $closetag = substr($options, 0, $pos);
  } else {
    $closetag = $options;
  }
  $output = "<{$options}>{$output}</{$closetag}>";
}
return $output;

Usage:

[[*description:tagwrap=`div class="description" id="idescr"`]]

22 Posts

kennybrijs Reply #7, 14 years, 7 months ago

BobRay:
I prefer the "less efficient" but more separated approach, but it would be a hassle creating a custom snippet and chunk everytime I want to include some part of a document with wrapper html-tags.

Microcipcip:
That's the closest to what I was looking for, and closest to what I'm used to in ExpressionEngine.
EE has this:

{if username == "joe"}
        <h1>Hey, Joe! Where were you Tuesday?</h1>
{if:elseif username == "bob"}
        <h1>Hey, Bob! Thanks for the tickets!</h1>
{if:else}
        <h1>Welcome to our site.</h1>
{/if}

I think that's pretty handy AND clean, I think it would be a good idea if MODx had something like that by default. Am I the only one?

Eoler:
Problem with that solution is: it's limited to one wrapper tag, or am I mistaken?

I'll be checking the If and AndIf snippets.
Thx guys!

Grtz

589 Posts

Eoler Reply #8, 14 years, 7 months ago

Quote from: kennybrijs at Feb 07, 2012, 09:28 AM

(...)
I think that's pretty handy AND clean, I think it would be a good idea if MODx had something like that by default. Am I the only one?
Eoler:
Problem with that solution is: it's limited to one wrapper tag, or am I mistaken?

Yes, a simple single-tag wrapper.

BTW, I don't like Smarty-like syntax above - display logic needs to go to "views" (snippets), language topics to lexicons etc.

24,544 Posts

BobRay Reply #9, 14 years, 7 months ago

Quote from: kennybrijs at Feb 07, 2012, 09:28 AM

BobRay:
I prefer the "less efficient" but more separated approach, but it would be a hassle creating a custom snippet and chunk everytime I want to include some part of a document with wrapper html-tags.

Microcipcip:
That's the closest to what I was looking for, and closest to what I'm used to in ExpressionEngine.
EE has this:
{if username == "joe"}
        <h1>Hey, Joe! Where were you Tuesday?</h1>
{if:elseif username == "bob"}
        <h1>Hey, Bob! Thanks for the tickets!</h1>
{if:else}
        <h1>Welcome to our site.</h1>
{/if}
I think that's pretty handy AND clean, I think it would be a good idea if MODx had something like that by default. Am I the only one?
Grtz

I think this is the equivalent (using the switch snippet):

[[!switch?
    &get=`[[+modx.user.username]]`
    &c1=`joe` &do1=`<h1>Hey, Joe! Where were you Tuesday?</h1>one`
    &c2=`bob` &do2=`<h1>Hey, Bob! Thanks for the tickets!</h1>`
    &default=`<h1>Welcome to our site.</h1>`
  ]]

---------------------------------------------------------------------------------------------------------------
PLEASE, PLEASE specify the version of MODX you are using . . . PLEASE!
MODx info for everyone: http://bobsguides.com/modx.html [ed. note: BobRay last edited this post 14 years, 7 months ago.]

Did I help you? Buy me a beer
Get my Book: MODX:The Official Guide
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22 Posts

kennybrijs Reply #10, 14 years, 7 months ago

Well, I got enough information to solve the problem anyways, but if you'll allow me to nitpick for a moment: I like the If and Switch snippets (and thanks to the people who made it!), it's just that they have a limitation (as I said, it's not a problem in this case, but it doesn't allow me to use them in EVERY situation)

"If" doesn't have an elseif, and Switch only allows EXACT comparisons (e.g.: $x = 3) but not more complex comparisons (e.g.: $x < 3)

Well, anyways, it's probably possible to call a snippet of my own in the templates and work some PHP magic

But I think a more versatile (and integrated by default) solution would be a nice feature for MODx.

Answered Templates IF statement