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Apostrophe 2.44.0: "load more" buttons and infinite scroll for pieces-pages, file group and extension restrictions for attachments, bug fixes

#1

Unit tests passing.

Regression tests passing.

  • Apostrophe’s AJAX filter features for apostrophe-pieces-pages now support “Load More” buttons and infinite scroll.

To add a “Load More” button:

  1. Wrap a new element inside your data-apos-ajax-context element around the content that makes up the current “page” of results. This should not wrap around filter links or the “Load More” button itself.
  2. Give that new element the data-apos-ajax-append attribute.
  3. Add append=1 to the query string of your Load More button. Example:
{% if data.currentPage < data.totalPages %}
  <a href="{{ data.url }} | build({ page: data.currentPage + 1, append: 1 })">Load More...</a>
{% endif %}

To progressively enhance this for infinite scroll, add a data-apos-ajax-infinite-scroll attribute to the button.

Note that we do this via progressive enhancement of a “Load More” button so that Google can still reach and index all of the pages (SEO).

  • Attachment schema fields now respect the new fileGroup and fileGroups properties. If fileGroup is set to images, then only image types (GIF, JPEG, PNG) are accepted; if it is set to office only typical business file types are accepted. Note that we have always rejected files that didn’t appear on the list for either type. You can also specify fileGroups as an array.
  • fileGroup: 'image' is now configured by default for apostrophe-images, as was always intended but incorrectly implemented in the past.
  • Attachment schema fields now respect the new extension and extensions properties. The former is handy if you only want to allow one extension, the latter if you want to allow more than one. The extensions must be those specified for fileGroups in the default configuration of apostrophe-attachments or your override of it (all lower case; JPEG is jpg; no period).
  • The addDocReferences migration has been parallelized, as this one-time migration can be time-consuming on a large site.
  • Broken less calculation fixed, thanks to Antoine COMBES.