Registration Entity Settings and 'Add to Cart' Form

Yes, using Commerce Registration to take registrations to turn into orders. A content type (node) has a Product Reference field back to the registration products, which displays the Add to Cart form.

What is a good way to grab the registration properties (enable, open/closed) from a product reference (Product type - Registration) from a Product?

My bad- changed the wrong issue title. Too many tabs open.

This is basically what I did to get around this.

I made a form_alter call that loaded the first product found in the registration entity list in the form (for my case, each one's setting is uniform per registration) then loaded its settings with registration_entity_settings().

Then I looked at status, open, and close property of the entity:

if ($registration_settings['status'] != '1') {
    // form is disabled
    unset($form['product_id']);
    unset($form['submit']);
    $form['disabled'] = array(
      '#type' => 'item',
      '#markup' => '<p>Registrations are disabled for this tournament.</p>',
    );
  }

  $open = strtotime($registration_settings['open']);
  $close = strtotime($registration_settings['close']);

  if ($open > time()) {
    // registrations are not open yet, hide the form, show an opening message
    unset($form['product_id']);
    unset($form['submit']);
    $form['open_message'] = array(
      '#type' => 'item',
      '#markup' => '<p>Registrations open on ' . date('m/d/Y', $open) . ' at ' . date('h:m a', $open) . '.</p>',
    );
  }

  if ($close < time()) {
    // registrations are closed
    unset($form['open_message']);
    unset($form['product_id']);
    unset($form['submit']);
    $form['close_message'] = array(
      '#type' => 'item',
      '#markup' => '<p>Registrations are closed.</p>',
    );
  } else {
    $form['close_message'] = array(
      '#type' => 'item',
      '#weight' => -10,
      '#markup' => '<p>The deadline to register is ' . date('m/d/Y', $close) . ' at ' . date('h:m a', $close) . '.</p>',
    );
  }

I did not see this in the UI or code anywhere. It would be nice if Registration did not return a product which to register for if the settings are not met, then if the Add to Cart select is empty, simply replaced with "Registrations are closed." instead of showing a form.

There will be a case when the registration settings don't match for a commerce registration, such as the dates for each, in which that would be necessary.