End to end Processing of photos

Thanks for the positive feedback on the plugin and its support; much appreciated.

Regarding gallery display tools, Justified Image Grid is an excellent choice with good support for MLA. There are a number of other gallery and lightbox plugins that can be used with MLA’s mla_alt_shortcode parameter to combine MLA’s data selection features with more elaborate gallery display features. You can find more information in the “Support for Other Gallery-generating Shortcodes” section of the Settings/Media Library Assistant Documentation tab. Here’s a link to an earlier topic that contains a list of similar topics:

Slider gallery plugin

Regarding your questions:

1. Selective processing by image type. The current MLA version does not contain and specific features to turn metadata mapping on or off depending on the image type. You could easily add this by implementing a small custom plugin that uses the hooks MLA provides to disable one or more rules based on image type. See the “MLA Custom Field and IPTC/EXIF Mapping Actions and Filters (Hooks)” section of the Documentation for more information, and search the Example Plugins for “mapping”.
2. Filtering by date. You can use the WordPress Date Query to filter gallery items in a wide variety of ways. See the “Date and Time Parameters, the ‘date query’ ” section for more information and links to the WordPress Codex documentation.
3. Filters required. These are best implemented as separate fields. The “location” could be a custom field or a taxonomy term. The “Caption” could be the built-in caption/excerpt field or a separate custom field. The others are best implemented as separate custom fields.

I hope that gets you started with your application. I am marking this topic resolved, but please update it if you have problems or further questions regarding the above suggestions. Thanks for your interest in the plugin.

David,

Hi, I’ve had a look at the “Date and Time Parameters” in the documentation and then links out to wp_query – which links out to https://developer.www.ads-software.com/reference/classes/wp_query/#date-parameters but that rapidly descends into coding eg:
$args = array(
‘date_query’ => array(
array(
‘year’ => 2012,
‘month’ => 12,
‘day’ => 12,
),
),
);
$query = new WP_Query( $args );

It’s not clear to me what code is needed and then I can add code into MLA itself.

I did find this in the section on long shortcodes:
[mla_gallery]
tax_query=”
array(
array(
‘taxonomy’ => ‘attachment_category’,
‘field’ => ‘id’,
‘terms’ => array(11, 12)
)
)”
post_mime_type=image/png link=file
[/mla_gallery]

so could my one look like to display all photos taken in 2012:

[mla_gallery]
post_parent=all
attachment_category=’test’
date_query=”
array(
‘field’ => ‘DCF-Date-Taken’,
‘year’ => 2012
)”
post_mime_type=image/jpg
link=file
[/mla_gallery]

Thanks for investigating the date_query and your update with the details on what you are trying to accomplish. Your example includes ‘field’ => ‘DCF-Date-Taken’, which looks like a reference to a custom field you have created; is that right?

The WordPress date_query does not support custom fields and does not have a field parameter. The documentation states:

• column (string) – Posts column to query against. Default: ‘post_date’.

The phrase “Posts column” means a column in the posts database table, so the date_query is limited to post_date, post_modified, post_date_gmt and post_modified_gmt.

To query on a custom field such as your DCF-Date_taken you can use the meta_query parameter, which has a slightly different syntax. More information can be found at:

https://developer.www.ads-software.com/reference/classes/wp_query/#custom-field-post-meta-parameters

Of course, this documentation descends into coding pretty quickly, too. For your example you can try something like:

[mla_gallery]
post_parent=all
attachment_category='test'
meta_query="array( array( 'key' => 'DCF-Date-Taken', 'value' => array( '2012-01-01 00:00:00', '2012-12-31 23:59:59' ), 'compare' => 'BETWEEN', 'type' => 'DATETIME' ) )"
post_mime_type=image/jpg
link=file
[/mla_gallery]

A similar query is working on my test system, albeit with different category and field names. If it doesn’t work for you, post a few examples of the values in the DCF-Date-Taken field; the format may be a problem.

Let me know if you have problems or further questions regarding the meta_query and the above suggestions. Thanks for your persistence.

PS – I am in California and we are about to lose power for a few days, so there may be a delay in my next response.