Hello! I've been recently struggling to find a way to make the K2 item ID to display as an extrafield. I have been successful in doing it by php in a certain way that it will display exactly like a extrafield in the table as any other field. However, if I do it like that it will not be added to the database, and therefore, won't be a searchable field by any search component. Does anyone care to give me a light in the right direction to do something like that?
Thank you!

Unfortunately by default this is not possible, you will need a custom plugin in order to do this.

Hey @Krikor. Do you have any idea what to suggest? Anyway I could send the ID together with the other extrafields? Which file I could alter?

If you don't mind me asking, what is the purpose of this?
Are you setting the ID as a searchable label?
I am asking so I can propose the best solution.

Of course. Here's the deal. I'm creating a big archive of documents where I want all of them to create an automatic code that is searchable. I don't want my clients to have to create the code by hand, so we had the idea to white label the K2 ID. In this manner, I was able to show by PHP after every extra field table one more row, where I could show the K2 ID with a prefix, something like IHGB2-###.
So theoretically a new item would have in the extra field in the table something like this: "IHGB2-125".

So, all I want is to make this field searchable. I don't even require that the white label "IHGB" to be searchable, just the ID number. But it is not, by my frontend search tools.

Thank you!

"Normal" search only looks in the item's content, not the extrafields.
One way to force K2 to look into ALL of the item's data (and get past MySQL's stop words) as well as search into tags and categories would be to enable Google Search integration.

I think that if you enable this setting (check K2's params) you won't need to map the ID into extrafields. The default frontend search will now "look" into your entire content.

Hmmm... the thing is, my main search on the site works through a plugin called Filter and Search for K2, and there is no google integration on it.

extensions.joomla.org/extension/filter-and-search-for-k2

But I may search a way to integrate it, somehow. I'll take a look into that option.

Since you are using filtering, I think you should try the manual assignment of the field.

Hey!
The extension support helped me through it. Added a line of code to the plugin and now its working fine.
Thank you for the support till now!

You 're welcome :)