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Data Model Questions /

Moderators: martimiz, Sean, Ed, biapar, Willr, Ingo, swaiba

Dependent Values from many_many in dropdown

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Community Member, 55 Posts

2 March 2016 at 3:17am

I have a a many_many relationship between

private static $many_many = array(
'Location' => 'Location',


private static $belongs_many_many = array(
'Service' => 'Service',

so there are lots of Locations with many Services on.

I have a drop down in a form which displays all Locations

new DropdownField( 'Locations ', 'Locations ' ,$locations->map('ID','Title')

what i would like is to display the Services underneath the dropdown in Checkboxes so people can select multiple services etc

So what they select a Location the relevant services display underneath.

Any Ideas would be greatly received

Many Thanks