I have a set of ‘lessons’ that are associated with ‘units.’

In total – you could say there were 36 lessons. I want to drip them (make them available based on date) to my students.

I have a little proof of concept to get the total amount of lessons each student should have available: https://codepen.io/sheriffderek/pen/0d0237f0c352a8b42527cdbd4bff9c0e?editors=1011 based on their user signup date. (manually added users)

So, that’s nice – but the part I’m having a hard time wrapping my mind around – is that those lessons have associations to the units and are on unit index pages.

Here are the lesson index templates for the unit pages.

The goal is – if you started on the 1st / and it was the 9th, then you’d have access to 8 lessons. To be more specific… you’d have access to unit 1 (4 videos) and unit 2 (4 videos) – but not unit 3 yet. I want these lessons to be aware of the total lessons – and the amount that will be available on a given date. But then – also the units would have to be aware of their index list.

<?php 
  $lessons = get_posts(array(
    'post_type' => 'lesson',
    'orderby' => 'date',
    'order'=> 'ASC',
    'meta_query' => array(
      array(
        'key' => 'belongs_to_unit', // name of custom field
        'value' => '"' . get_the_ID() . '"',
        // matches exactly "123", not just 123. This prevents a match for "1234"
        'compare' => 'LIKE'
      )
    )
  ));
?>

<?php if ($lessons): ?>

  <ol class='lesson-list'>
    <?php foreach( $lessons as $index => $lesson ): ?>
      <?php
        $standardTitle = $lesson->post_title;
        $formattedTitle = get_field('formatted_title', $lesson->ID);
        $hasHormattedTitle = get_field('has_formatted_title', $lesson->ID);
      ?>
      <li class='lesson'>
        <article class='other-content'>
          <h3 class='unit'>Lesson: <?php echo($index + 1); ?></h3>

          <h2 class='title'>
            <?= ($hasHormattedTitle) ? $formattedTitle : $standardTitle ?>
          </h2>

          <p>redacted ui</p>

        </article>
      </li>
    <?php endforeach; ?>
  </ol>

<?php else: ?>

  There are no lessons in this unit yet!

<?php endif; ?>

How can I build a mental model for this?

• This topic was modified 2 years ago by sheriffderek.
• This topic was modified 2 years ago by sheriffderek.
• This topic was modified 2 years ago by sheriffderek.
• This topic was modified 2 years ago by Jan Dembowski. Reason: Removed shortlink