Problem: I would like to create a design for Product single post pages but my template does not appear when I visit the Product post on the front-end of the site.
Solution: Be sure the Content Template you created for Products has been assigned to this Product post. Use the "change usage" feature to bind unbound Products in bulk if necessary.
Problem: I have a custom field filter (text input) in my WordPress Archive. I would like to sanitize the User's input in this field programmatically before search. For example, I would like to remove any URL querystring parameters added to the URL and search for the main URL without any URL parameters.
Solution: Use the API wpv_filter_custom_field_filter_processed_value to manipulate the User's search criteria programmatically before search. You can use this filter to inspect the URL and truncate it before any querystring parameters. Use the Wordpress Archive ID instead of the View ID.
Problem: I would like to use update_post_meta to listen for changed postmeta values, but the hook does not seem to fire for date fields.
Solution: That is correct. Date fields are removed, then readded each time an edit post form is submitted. Use the add_post_meta hook to listen for this event instead.