Convert Markdown Posts to Kirby Blocks

md-to-kirby-blocks.php

<?php

// Converting Markdown posts to Kirby Blocks
// Useful for K2 to K3 content Migrations
// Or if you want to transform automatically your Markdown to Kirby Blocks

// Get posts
$posts =  $page->children()->listed();

foreach ($posts as $post) {

  // New Blocks Object
  $newBlocks = new Kirby\Cms\Blocks();

  // Convert the Markdown from the text field to HTML and to blocks
  $blocks = $post->content()->get('text')->kt()->toBlocks();
  foreach ($blocks as $block) {

    // If The Block Type is not an image
    if ($block->type() !== 'image') {

      // This adds a Block type Text or List from the HTML to the $newBlocks Object
      $newBlocks->add($block);
    } else {

      if(isset($imageName)) {
        unset($imageName);
      }

      // We get the image basename ex: 1.png
      $imageName[] = basename($block->content()->src());

      // We create a new Image Block type.
      // We do this to get the image as an image in the panel not an external URL
      // with the 'location' => 'kirby'

      $image = new \Kirby\Cms\Block([
        "content" => [
          'location' => 'kirby',
          'image'    => $imageName,
        ],
        'type' => 'image',
      ]);

      // we add the new image to the $newBlocks Object
      $newBlocks->add($image);
    }
  }

  // I do this to check if some posts are already a Kirby Block or not
  if(!isJson($post->text()->value())){

    $kirby->impersonate('kirby');

    // Update the Page
    $post->update([

      // I'm transforming the Title to Lowercase Uppercase-first letter
      'title' => ucfirst(mb_strtolower($post->title())),
      'text' => json_encode($newBlocks->toArray()),
    ]);
  }

}