1. Your code should work even in the functions file in the parent theme. The only problem I can think of (without seeing your theme or site) is that there may be a priority conflict.
So, to try to add the table row later, instead of the code above, you could try this in the parent’s functions file:
function my_add_specs_table_row() {
global $post;
echo '<tr><td>';
echo 'License';
echo '</td><td>';
echo get_post_meta($post->ID, 'my_license', true);
echo '</td></tr>';
}
function later_add_specs_table_row() {
add_action ( 'eddss_add_specs_table_row', 'my_add_specs_table_row');
}
add_action ( 'init', 'later_add_specs_table_row', 9999);
2. Yes, the “Software Application Types” were specifically defined by Google. They are the only “supported software application types” for the property of “SoftwareApplicationCategory”.
(Although “SoftwareApplicationCategory” is not listed as a property on the schema.org page for SoftwareApplication, please see this page and scroll to “softwareApplicationCategory”. You’ll see a link to “supported software application types”.)
I see now that link to these “supported software types” is broken. It seems that Google may have taken the list down. I originally got the list from them. Although they seem to have taken the list down, I just re-tested the mirodata in Google’s Structured Data Testing Tool, and I find that the same rules apply.
In other words, if you don’t use one of the listed types, then you will not get a rich snippet. I tried using random text for the “Software Application Type” such as “Money App”, and I got no snippet. Some random text does give a snippet (“Finance” works), but it’s not guaranteed to work. Only the list which I include in the plugin seems to be guaranteed to work to generate a rich snippet. (The exception, as stated in this plugin’s FAQ, is if you select “Other Application”. “Other Application” will not give you a rich snippet.)
Please note that we are discussing the plugin’s Specs option called “Software Application Type – For Microdata“. This will not be visible to your visitors. The option that is visible to your visitors is, “Software Application Type – For Display“. In this “For Display” option, you can type whatever you like.
Which microdata options are you seeking? I will keep on eye on Google’s pages to see if they change these rules for Software Application rich snippets.
I hope this helps.
