Sample provider function for rendering custom inputs with gtc

gtc-provider.php

    public function generateActiveField($model, $column)
    {
        if ($column->autoIncrement) {
            return false;
        }

        switch ($column->name) {
            case 'created_at':
            case 'updated_at':
                return "echo \$form->textField(\$model,'{$column->name}',array('disabled'=>'disabled'))";
                break;
            case 'rgb':
                return "\$this->widget('TbColorPicker', array('model'=>\$model,'attribute'=>'{$column->name}'))";
                break;
            case 'default_p3media_id':
            case 'p3media_id':
            case 'icon_url':
                return "\$this->widget('P3MediaSelect', array('model'=>\$model,'attribute'=>'{$column->name}'))";
                break;
        }
        
        // Render a dropdown list if the model has a method optsColumn().
        $func = "opts" . str_replace("_", "", $column->name);
        if (method_exists($model, $func)) {
            return "echo \$form->dropDownList(\$model,'{$column->name}',{$model}::{$func}(),array('empty'=>'undefined'));";
        }
    }