pdoNeighbors: hide Prev button if previous resource does not exist

67 Posts

fredela Reply #1, 8 years ago

Does anyone have ever had this issue?
You are using pdoNeighbors for a Prev/Next navigation.
You got only one resource inside a container.
So there is no previous nor next resource to go to.
But pdoNeighbors shows the Prev button anyway, meaning that the Prev button links to the same page you are visiting.

Which is the best way to simply hide the button if you only got 1 page and there are not 2+ resources to navigate through?

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Frogabog Reply #2, 8 years ago

Haven't used it, but since pdoNeighbors can use the same parameters as pdoTools, maybe an output filter in a chunk to specify which tpl would work with totalVar placeholder?

[[[[+total:is=`1`:then=`$tplWithoutPrev`:else=`$tplWithPrev`]]]]

^^ untested ^^

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67 Posts

fredela Reply #3, 8 years ago

Thanks Frogabog.
I tried to insert

[[+total:is=`1`:then=`nothing`:else=`<span class="link-prev"><a href="[[+link]]">← Previous</a></span>`]]

in the tplPrev chunck but nothing happened. [ed. note: fredela last edited this post 8 years ago.]

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Frogabog Reply #4, 8 years ago

Likely because "nothing" is... nothing. Make two chunks. One will have the markup for only one button, the other will have markup for two buttons.

Frogabog- MODX Websites in Portland Oregon
"Do yourself a favor and get a copy of "MODX - The Official Guide" by Bob Ray. Read it.
Having server issues? These guys have MODX Hosting perfected - SkyToaster

67 Posts

fredela Reply #5, 8 years ago

Actually it should just return "nothing", right?

Tried this:

[[pdoNeighbors?
    &sortby=`publishedon`
    &sortdir=`asc`
    &tplPrev=`[[+total:is=`1`:then=`tplPrev_empty`:else=`tplPrev`]]`
    &tplUp=`tplUp`
    &tplNext=`tplNext`
]]

Same result.
I only use pdoMenu so I am not a pdo expert.
I quickly checked the documentation.
Every pdo property should work with pdoNeighbors.
Anyway, I did not find

total

in the general pdo properties list.
Do you have a link?

142 Posts

mtalvenheimo Reply #6, 8 years ago

What if write custom snippet which hides/strips pdoNeighbor if Parent has only one children?
Or use &resources parameter to call snippet to subtract all resources without siblings?

&resources=`[[snippetHere]]`

[ed. note: wintertribe last edited this post 8 years ago.]

67 Posts

fredela Reply #7, 8 years ago

Hi mtalvenheimo, thanks.
I am not good at php coding.
Any idea about how to write that?

142 Posts

mtalvenheimo Reply #8, 8 years ago

Unfortunately no fast solution. I'm a bit slow google>copy>paste coder myself too

Maybe this will help?

https://forums.modx.com/thread/70700/how-do-i-get-all-siblings

or this

https://gist.github.com/pepebe/2431823

142 Posts

mtalvenheimo Reply #9, 8 years ago

Try this?

[[pdoNeighbors? 
&resources=`[[stripLoners]]`
]]

stripLoners snippet:

<?php
$id = $modx->resource->get('id');
$parent = $modx->resource->getOne('Parent');
$children = $parent->getMany('Children');

if (count($children) == 1){
    $output = '-' . $id;
} ;

return $output;

EDIT

By the way. By default pdoNeighbors is not showing in resources without siblings?
For me it's working this way? [ed. note: wintertribe last edited this post 8 years ago.]

67 Posts

fredela Reply #10, 8 years ago

Quote from: wintertribe at Apr 29, 2016, 10:01 AM

EDIT

By the way. By default pdoNeighbors is not showing in resources without siblings?
For me it's working this way?

You mean that pdoNeighbors by default should not show prev/next buttons if the parent contains only one resource?