The advanced filter allows complex rules to be made on any attribute.
The filter string can contain multiple filter condition sets separated by “||” (which acts as an OR operator), and each condition set can contain multiple conditions separated by “&&” (which acts as an AND operator). Each condition in the filter can follow the format “field:operator:value”.
Depending on the operator, it compares the item value with the filter value:
- eq: checks for exact equality.
- not: checks for negative match.
- regex: checks if the item value matches the regular expression pattern in value.
Simple equality:
“address.city:eq:London”
Negative match:
“address.city:not:Paris”
Regular expression matching:
“tickets.display_name:regex:^.*Seminar$”
Compound filters using AND (&&) and OR (||) logic:
“address.city:eq:London && venue.name:not:Albert Hall”
“venue.name:eq:Windsor Castle || venue.name:eq:Buckingham Palace”
To use the advanced filter in the shortcode use filter_by_attr e.g. filter_by_attr=”venue.name:eq:Windsor Castle || venue.name:eq:Buckingham Palace” or use the appropriate form input area.
For data attributes and structure see this article
