This is the interface you should implement to add an action to a BulkActions object for your listing.
shouldProcess() : boolean
Determine whether your action should be processed. Typically, you should be adding some kind of input (perhaps a submit button with a known ID or a hidden input that you set via some custom JavaScript) to the request that you can use to detect when the user has chosen to run your particular bulk action.
process(array $selected) : mixed
Process the provided array of selected IDs. The IDs will always be legit values from the Listing's primary key field. This means that the ID was presented to the user and they were allowed to select it. Your process method will also only be called when there is at least 1 selected value, so you don't have to worry about empty array if you're using an IN operator.
| array | $selected |
render(\Dewdrop\View\View $view) : mixed
Render some controls for your action. Could be as simple as a single submit button or something more complex/dynamic using a view script partial, custom CSS and JS, etc.
| \Dewdrop\View\View | $view |