AvantCommon provides common logic to support the following plugins:

Configuration options

AvantCommon has these configuration options:

The following sections describe each option in detail.

See also the documentation for installing AvantCommon.

Custom Text option

This option lets you provide your own text to use in place of the default text that the Digital Archive displays for some user interface elements.

Id Default Text
image_tooltip See larger image
image_thumb_tooltip See larger image (click title to view item)
php_thumb_tooltip Read this PDF file
item_link_tooltip View this item
fallback_thumb_tooltip Click title to view item
flagged_items_link_text Flagged Items
flagged_items_tooltip See your flagged items
flag_item_tooltip Add to flagged items list
unflag_item_tooltip Remove from flagged items list

The Id values you specify must exactly match the values in the table above. If an Id does not match, the default text will be used.

The screenshot below shows an example use of the Custom Text option.

Custom text

Enable Lightbox option

The AvantCommon plugin provides support for the Lightbox feature that is used on pages that display thumbnails. When enabled, the Lightbox feature lets you click on a thumbnail to see it's original-size image in a popup lightbox.

Check the Enable Lightbox checkbox to enable the feature. When this option is unchecked, clicking on a thumbnail displays the larger image in a separate browser tab.

The Lightbox feature lets you:

  • Click a thumbnail to see a larger image appear in a lightbox
  • See other images on the page by:
    • Clicking on the current lightbox image to see the next image
    • Clicking the left and right arrows to see the previous or next image
  • View the item for the image by clicking on the View Item link in the caption area
  • Close the lightbox these three ways:
    • Click on the X in the caption area
    • Click anywhere on the page outside the lightbox
    • Press the Esc key

Identifier Alias option

This option lets you specify an alias for the item Identifier. Leave this option blank to use the Identifier element's value to display as an item's identifier. If your installation uses a different element for the public facing identifier value, specify that element as an alias. For example, if you use a Catalogue # element to store a catalogue number such as 2018.123.001, you could specify Catalogue # as the alias. Note that the alias will appear in search results and as the identifier for thumbnails.

If you change this option to start using an alias, or to use a different alieas, or to stop using an alias, and you are using the AvantElasticsearch plugin, you will need to reindex the site after making the change.

Identifier Element option

This option lets you specify the element used to uniquely identify an Item. usually this is the Dublin Core Identifier element, but if your installation uses a different element for this purpose, specify it here. For example: Object ID. Note that the identifier element is what you'll using when establishing relationships using the AvantRelationships plugin.

Identifier Prefix option

The prefix is text that will appear before the identifier or alias. You can leave it blank or provide a value. For example: Item or Catalogue #.

Private Elements option

Use this option to specify elements that public users should not be able to see or search. Specify each element name on its on row as shown in the example below.


Private element will not:

  • Be visible to public users, but logged in users will see them
  • Be searchable via a public keyword search

For example, you might have elements used to record internal information such as notes and item status that is meant only for archivists. You can specify Notes and Status as private elements to prevent this information from being visible to or searched by the public.

Here are key points regarding private elements:

  • Private elements will not appear as field selections on the Advanced Search page unless you are logged in as an administrator.
  • The text of private elements will not be recorded in the search_texts table or in hte public Elasticsearch index, and therefore will not be searched when performing a public keyword search. This is true whether or not you are logged in as an administrator.
  • To search for text in private elements, an archivist can do a field search in those fields, either through the public Advanced Search page or using the native Omeka Advanced Search page.
  • If you add an existing element to the private elements list, that element's text will still be contained in the search_texts table and in the public Elasticsearch index and therefore be found via a keyword search. To hide the element's content, you must reindex your Omeka database to force the search_texts table to be rebuilt without the private element text. You will also need to update the public Elasticsearch index.
  • If you uninstall AvantSearch and want to make private elements searchable again, reindex your Omeka database and Elasticsearch index as described in the previous bullet.

This features solves a problem in Omeka's native search whereby the text of all elements is searched, including information that is hidden from public users by the Hide Elements plugin. This can produce keyword search results containing items that match the search criteria, but that don't display the elements that resulted in the hit. For example, the search might find keywords that appear in an item's hidden Notes element, but in no other public elements for that item. The user then gets a search result that appears to contain none of the keywords they were looking for.

Request Image URL option

Provide the URL of a web page to display when a user requests an image by clicking the Request this Image link at the bottom of the Lightbox. When this value is empty, no link appears in the Lightbox. The link includes query string parameters for the Item #, item ID, and image file name so that the linked-to page knows what the request is for.

Unused Elements option

Use this option to specify elements that your installation is not currently using and that should not appear on the admin Edit page. Specify each element name on its on row as shown in the example below.



AvantCommon depends on the following open source library which is included in the views/shared/javascripts folder. Click the link below to see its copyright and license.


  1. Download the latest release from https://github.com/gsoules/AvantCommon
  2. Unzip AvantCommon-master.zip into your Omeka plugins folder
  3. Rename the folder to AvantCommon
  4. Activate the plugin from the Omeka Plugins page


Use this software at your own risk.


This plugin is published under [GNU/GPL].

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

  • Created by gsoules
  • Copyright George Soules, 2016-2020.
  • See LICENSE for more information.