I’ve come across an issue with adding new rows to a repeater field using the documentation example here:
http://www.advancedcustomfields.com/resources/functions/update_field/
/*
* add a repeater row on a taxonomy!!!
*/
$field_key = "repeater_field";
$post_id = "event_123";
$value = get_field($field_key, $post_id);
$value[] = array("sub_field_1" => "Foo", "sub_field_2" => "Bar");
update_field( $field_key, $value, $post_id );
The problem is that get_field() seems to replace some of the string characters with html entities, namely the & is replaced with &. This is fine usually, however when saving the value afterwards with update_field(), the update_field() function then seems to escape them out again. So if you have a value that has an & character and you add a few rows to your field later, you end up with &&& and it will continue adding & every time you add a new row.
I hope this makes sense, its a bit hard to explain. Thanks!
At a quick glance it seems as though $double_encode should be set to false in the a couple of spots in the acf core when using htmlspecialchars:
http://php.net/manual/en/function.htmlspecialchars-decode.php
For now i just wrote a simple decode function that I run after get_field and before update_field:
public function htmlspecialchars_decode_array($array){
$newArray = array();
foreach($array as $arrayKey => $arrayVal){
$newArray[$arrayKey] = htmlspecialchars_decode($arrayVal);
}
return $newArray;
}
possibly a cleaner way around this:
public function htmlspecialchars_decode_array($array){
$arrayJsonEncoded = json_encode($array,JSON_HEX_QUOT | JSON_HEX_APOS);
$arrayJsonEncodedSpecCharsDecoded = htmlspecialchars_decode($arrayJsonEncoded);
$arrayJsonDecoded = json_decode($arrayJsonEncodedSpecCharsDecoded,true);
return $arrayJsonDecoded;
}
