SilverStripe - limiting the number of many relations a dataobject can have

Question

If I have a $has_many relationship that I want to manage with a GridField in the cms, how would I go about putting a limit on the number of how man

Answer 1

I have wrote a quick jQuery plugin to limit the number of items a GridField can have: -

Download the plugin here: - gridfieldlimit.js

https://letscrate.com/f/monkeyben/silverstripe/gridfieldlimit.js

Set up the plugin in the getCMSFields function: -

// Pass GridField configs, each one containing field name and item limit
$vars = array(
    "GridFieldLimits" => "[['GRIDFIELD_NAME_1', 3], ['GRIDFIELD_NAME_2', 6]]",
);

// Load the jquery gridfield plugin
Requirements::javascriptTemplate("themes/YOUR_THEME_NAME/javascript/gridfieldlimit.js", $vars);