#CraftCMS: Eager-Load Nested Sets of Elements

eager-loading.twig

{#
  According to docs (https://craftcms.com/docs/templating/eager-loading-elements),
  this is how you Eager-Load Nested Sets of Elements
#}

{% set entries = craft.entries({
  section: 'news',
  with: [
    'entriesField.assetsField'
  ]
}) %}

{# And this is how you Eager-Load Elements Related to Matrix Blocks #}
{% set blocks = entry.matrixField.find({
  with: ['blockType:assetsField']
}) %}

{# or #}

{% set entries = craft.entries({
  section: 'news',
  with: ['matrixField.blockType:assetsField']
}) %}

{#
  but when you have e.g. Categories inside each Martix Block, you can't do:
  `with:['matrixField.blockType:assetsField.categoriesField`…
  do this separately instead:
#}

{% set entries = craft.entries({
  section: 'news'
}) %}

{% for entry in entries %}
  {% for block in entry.matrixField.type('assetsField').find({ with: ['categoriesField'] }) %}
    …
  {% endfor %}
{% endfor %}