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Page1 Load - DB Read Action with Data Merge, Wizard Settings -> Name: data

Checkboxes Group: Field Name: ART

Page1 Submit - DB Save Action -> Modify Data Source: ART={data:ART}

-> Unknown column 'Array' in 'field list'

1. how do I load the array into the checkboxes group from the db? (decode json)

2. Apparently there was a problem saving the array into the db. Other fields work.

1- set the data using a PHP action:

$this->data["field_name"] = json_decode($this->get("read_data123.field_name"), true);

2- remove the ART field before setting it:

-ART
ART={data:ART}