Building a Custom Checkbox TV Input in Evolution CMS

The original post described a custom manager input called Custom Check Box. The goal was to get a checkbox-style TV interface that behaved better than the default field for a particular editorial workflow.

What was changed

The approach extended manager-side TV rendering by adding a new input type in manager/includes/tmplvars.inc.php and then wiring it into the TV type selector.

Example render logic

case "checkbox_custom":
    $field_value = !is_array($field_value) ? explode("||",$field_value) : $field_value;
    $index_list = ParseIntputOptions(ProcessTVCommand($field_elements, $field_id,'','tvform'));
    ...
    break;

Why teams did this

• default checkboxes did not fit the required layout or behavior
• multi-select lists were not editor-friendly enough
• the project needed a more controlled manager UI for structured values

This kind of customization belongs squarely in the ecosystem story: one of Evo’s long-standing strengths was that teams could reshape the manager when the default input controls got in the way.

Source: original community announcement.