'Varchar(128)', 'Description' => 'Text', 'Content' => 'HTMLText', 'Alias' => 'Text' ); static $singular_name = 'Module'; static $plural_name = 'Modules'; static $has_one = array( 'Position' => 'ModulePosition' ); static $many_many = array( 'Pages' => 'SiteTree' ); static $summary_fields = array( 'Title', 'Description', 'Position.Title' ); static $searchable_fields = array( 'Title', 'PositionID' ); static $field_labels = array( 'Position.Title' => 'Position' ); // create cms fields public function getCMSFields() { $fields = new FieldList(new TabSet('Root')); // required information $fields->addFieldToTab('Root.Information', new ReadonlyField('ClassName', 'Module Type', $this->ClassName)); $fields->addFieldToTab('Root.Information', new TextField('Title', 'Title')); $fields->addFieldToTab('Root.Information', new TextField('Alias', 'Alias (unique identifier)')); $fields->addFieldToTab('Root.Information', new TextareaField('Description', 'Description')); $fields->addFieldToTab('Root.Information', new DropdownField( 'PositionID', 'Position', $this->GetModulePositions() )); // the module content itself $fields->addFieldToTab('Root.Content', new HTMLEditorField('Content', 'Content')); // what pages is this module active on $gridFieldConfig = GridFieldConfig_RelationEditor::create(); $gridField = new GridField("Pages", "Pages", $this->Pages(), $gridFieldConfig); $fields->addFieldToTab("Root.Pages", $gridField); return $fields; } // return list of possible module positions for cms dropdown field function GetModulePositions(){ if($Positions = DataObject::get('ModulePosition')){ // construct container $map = array(); // loop each position and inject into map foreach( $Positions as $Position ){ $map[$Position->ID] = $Position->Title .' ('.$Position->Alias.')'; } return $map; }else{ return array('You need to create a Module Position first'); } } // return list of possible module positions for cms dropdown field function ModulePositionName(){ $position = ModulePosition::get()->byID($this->ModulePosition); return $position->Title; } }