for your block template, after you’ve registered the block with “editor”=>”attributes”=>”cover” = ‘…’
<?php if (is_admin() && @$block['example']['attributes']['cover']): ?>
<div style="background:url(<?= $block['example']['attributes']['cover'] ?>) no-repeat center #eee; background-size:contain;width:500px;height:600px;"></div>
<?php else: ?>
<!-- your block html -->
<?php endif; ?>
EDIT: eh – spoke too soon. This will change the block in the editor not just preview. Is there a conditional to determine if the block is being “previewed”?
I am thinking of exactly this – might end up writing one for our internal workflow. Unless anything has come about since May 2014?
Could be related to this issue, which I had created a patch for 5.1.7.1
http://support.advancedcustomfields.com/forums/topic/unnecessary-ajax-calls/
I’ve come up with a rudimentary patch to input.js that solves the excessive $.each() and $el.closest() calls when there is an excessive amount of repeatables.
changing this:
get_visibility : function( $target, rule ){
//console.log( 'conditional_logic.get_visibility(%o, %o)', $target, rule );
// update cache (cache is cleared after render_fields)
if( !acf.isset(this.cache, rule.field) ) {
//console.log('get_fields(%o)', rule.field);
// get all fields for this field_key and store in cache
this.cache[ rule.field ] = acf.get_fields(rule.field, false, true);
}
// vars
var $triggers = this.cache[ rule.field ],
$trigger = null;
// bail early if no triggers found
if( !$triggers.exists() ) {
return false;
}
// set $trigger
$trigger = $triggers.first();
// find better $trigger
if( $triggers.length > 1 ) {
$triggers.each(function(){
// vars
$parent = $(this).parent();
if( $target.closest( $parent ).exists() ) {
$trigger = $(this);
return false;
}
});
}
// calculate
var visibility = this.calculate( rule, $trigger, $target );
// return
return visibility;
},
To this:
get_visibility : function( $target, rule ){
//console.log( 'conditional_logic.get_visibility(%o, %o)', $target, rule );
// update cache (cache is cleared after render_fields)
if( !acf.isset(this.cache, rule.field) ) {
//console.log('get_fields(%o)', rule.field);
// get all fields for this field_key and store in cache
this.cache[ rule.field ] = acf.get_fields(rule.field, false, true);
}
// vars
var $triggers = this.cache[ rule.field ],
/*change*/ $trigger = $target.closest('.acf-row').find('tr.field_key-'+rule.field);
// bail early if no triggers found
if( !$triggers.exists() ) {
return false;
}
/*change*/ else if ( !$trigger.exists() ) {
// set $trigger
$trigger = $triggers.first();
// find better $trigger
if( $triggers.length > 1 ) {
$triggers.each(function(){
// vars
$parent = $(this).parent();
if( $target.closest( $parent ).exists() ) {
$trigger = $(this);
return false;
}
});
}
}
// calculate
var visibility = this.calculate( rule, $trigger, $target );
// return
return visibility;
}
Semi-related – I’ve got a page with a repeatable field that the client has created ~150 repeated fields with.
On some browsers this causes the page to become unresponsive. I say semi-related because it looks to be due to the get_visibility() js method for fields with conditional logic.
Attached is the js profile. If I remove all field conditional rules, or force get_visibility() to return true, then the page does not become unresponsive.
Welcome to the Advanced Custom Fields community forum.
Browse through ideas, snippets of code, questions and answers between fellow ACF users
Helping others is a great way to earn karma, gain badges and help ACF development!
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. Read about how we use cookies and how you can control them in our Cookie Policy. If you continue to use this site, you consent to our use of cookies.