How To Make A Graded Select Boxes In A Form (Parent Select -> Child Select -> Child Select)

Provinces Table - provinces

Field Name	Data Type
id	int(PK)
created_at	timestamp
name	varchar(255)

Cities Table - cities

Field Name	Data Type
id	int(PK)
created_at	timestamp
name	varchar(255)
provinces_id	int(11)

Code

$this->form[] = ['label'=>'Province','type'=>'select','name'=>'provinces_id','datatable'=>'provinces,name'];
$this->form[] = ['label'=>'City','type'=>'select','name'=>'cities_id','datatable'=>'cities,name','parent_select'=>'provinces_id'];

So you need to add parent_select attribute and fill it with name of previous select name.

What's Next

• Form Input Type: checkbox

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