Support › Meta Box Group › Fix for nesting groups
- This topic has 4 replies, 2 voices, and was last updated 8 years, 8 months ago by
aconway.
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March 23, 2016 at 2:37 AM #2550
aconway
ParticipantHi, I saw you mentioned in another support question you were working on a fix for nesting clonable groups, I needed nesting non-cloneable groups for a project so I made some simple changes to the RWMB_Group_Field class to enable them.
The main issue was the current class using and rewriting a single static meta value for all groups. Instead I'm setting a field parent_meta on the child field attributes in the loop in the html function:
$child_field['attributes']['name'] = $child_field['field_name'] = self::child_field_name( $field['field_name'], $child_field['field_name'] ); if(isset($meta[$child_field['id']])){ $child_field['attributes']['parent_meta'] = $meta[$child_field['id']]; }then looking to that in the child_field_meta function:
if ( isset( $child_field['attributes']['parent_meta'] ) ) { $meta = $child_field['attributes']['parent_meta']; }Not sure if you've already figured out this or made a similar fix, I'm happy to share my code with the hopes of it being integrated into a future release version.
March 24, 2016 at 12:24 PM #2560Anh Tran
KeymasterThanks a lot, aconway! The reason it's hard to deal with is cloning. But it's still good if we have a solution for none-cloning groups. I will check your code and let you know.
March 25, 2016 at 12:12 AM #2569ParticipantHi,
what I posted above isn't exactly right, I ran into the issue that the attributes are set as strings on the metabox html object so you have an issue if there's a array (ie an image value or something).
I made it instead like this
static function html( $meta, $field ) { // Get parent field and filter to child field meta value if(!isset($field['parent_meta'])){ add_filter( 'rwmb_field_meta', array( __CLASS__, 'child_field_meta' ), 10, 3 ); } ob_start(); foreach ( $field['fields'] as $child_field ) { $child_field['attributes']['name'] = $child_field['field_name'] = self::child_field_name( $field['field_name'], $child_field['field_name'] ); if(isset($meta[$child_field['id']])){ $child_field['parent_meta'] = $meta[$child_field['id']]; } call_user_func( array( RW_Meta_Box::get_class_name( $child_field ), 'show' ), $child_field, RWMB_Group::$saved); } // Remove filter to child field meta value and reset class's parent field's meta if(!isset($field['parent_meta'])){ remove_filter( 'rwmb_field_meta', array( __CLASS__, 'child_field_meta' ) ); } return ob_get_clean(); }static function child_field_meta( $meta, $child_field, $saved ) { $meta = ''; $id = $child_field['id']; if ( isset( $child_field['parent_meta'] ) ) { $meta = $child_field['parent_meta']; } elseif ( ! $saved && isset( $child_field['std'] ) ) { $meta = $child_field['std']; } elseif ( $child_field['multiple'] ) { $meta = array(); } return $meta; }March 25, 2016 at 10:07 AM #2574KeymasterHi aconway,
Thanks again for your contribution. I've looked at your code and it works like a charm.
The main thing here is "capture" the parent value of child field. You did that by assigning parent value to "parent_meta" key of the child field and get it back in the
child_field_metafunction. Althogh this works perfectly, this leads to a problem of redundant info as the parent value of 1 group is stored in ALL its children.So, I modified it a little by using a queue. The queue stores parent value. I use push/pop to add/retrieve parent value from the queue. Just 1 single variable to store all parent values. I think it's a little better in memory usage.
The new version 1.0.7 is just released with this. Hope you enjoy it.
Again, thanks a lot for your contribution!
March 27, 2016 at 5:51 AM #2599ParticipantGreat, thanks! That was a good catch to make it more efficient.
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