GridFieldBulkEditingTools/bulkManager/BULK_MANAGER.md

# Bulk Manager
Perform actions on multiple records straight from the GridField. Comes with *unlink*, *delete* and bulk *editing*. You can also easily create/add your own.

## Usage
Simply add component to your `GridFieldConfig`
		
		$config->addComponent(new GridFieldBulkManager());
		
## Configuration
The component's options can be configurated individually or in bulk through the 'config' functions like this:

    $config->getComponentByType('GridFieldBulkManager')->setConfig($reference, $value);
		
### $config overview
The available configuration options are:
* 'editableFields' : array of string referencing specific CMS fields available for editing
* 'fieldsNameBlacklist' : array of string referencing the names of fields that wont be available for editing
* 'readOnlyFieldClasses' : array of string referencing types (ClassName) of fields that will be transformed to read only (always includes `GridField` and `UploadField`)

## Custom actions
You can remove or add individual action or replace them all via `addBulkAction()` and `removeBulkAction()`

### Adding a custom action
To add a custom bulk action to the list use:

    $config->getComponentByType('GridFieldBulkManager')->addBulkAction('actionName', 'Dropdown label', 'ActionHandlerClassName', $frontEndConfig)

You can omit the handler's class name and the front-end config array, those will default to:
* `'GridFieldBulkAction'.ucfirst($name).'Handler'`
* `$config = array( 'isAjax' => true, 'icon' => 'accept', 'isDestructive' => false )`

#### Custom action handler
When creating your own bulk action `RequestHandler`, you should extend `GridFieldBulkActionHandler` which will expose 2 usefull functions `getRecordIDList()` and `getRecords()` returning either an array with the selected records IDs or a `DataList` of the selected records.

Make sure to define your `$allowed_actions` and `$url_handlers` on your custom bulk action handler. See `GridFieldBulkActionEditHandler`, `GridFieldBulkActionDeleteHandler` and `GridFieldBulkActionUnlinkHandler` for examples.

#### Front-end config
The last `addBulkAction()` parameter lets you pass an array with configuration options for the UI/UX:
* `isAjax`: if true the action will be called via XHR request otherwise the browser will be redirected to the action's URL
* `icon`: lets you define which icon to use on the button when the action is selected (SilverStripe button icon name only)
* `isDestructive`: if true, a confirmation dialog will be shown before the action is processed