Title: Computed Copyright Information
Last modified: November 18, 2021

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# Computed Copyright Information

 *  Resolved [ernstwg](https://wordpress.org/support/users/ernstwg/)
 * (@ernstwg)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/computed-copyright-information/)
 * Hi David.
 * Copyright is important for a little publishing community, particularly a German
   community something important.
    My idea is to make a prefix for the post_excerpt(
   caption) which looks like “**image: <attachment_author_name>**“. <attachment_author_name
   > means the full name of the person doing the upload of the image. My understanding
   of your documentation is that Field-level data sources -> post_author could do
   the job. The content template of the field looks like template:`(image: [+post_author
   +])(( # [+iptc:2#005+])|( # [+parent_title+]))`.
 * Unfortunately [+post_author+] shows the (correct) author_id but not the desired
   name of the author, fullname, display name, whatever…
 * Can you give me any guidance? Thank you !!

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [David Lingren](https://wordpress.org/support/users/dglingren/)
 * (@dglingren)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/computed-copyright-information/#post-15086984)
 * Thanks for your question. There are no built-in data sources for author values,
   but one of the many MLA example plugins adds them. You may already have installed
   the “MLA Substitution Parameter Hooks Example” plugin to solve earlier topics
   such as your:
 * [Featured Image](https://wordpress.org/support/topic/featured-image-478/)
 * If not, follow the steps in that topic to install and activate the example plugin.
   Once that’s done you can use something like `[+author:display_name+]` to get 
   the results you want. The `author:` prefix gives you access to all of the `WP_User`
   properties, such as:
    - ID
    - user_login
    - user_nicename
    - user_email
    - user_url
    - user_registered
    - user_status
    - display_name
 * In addition, you can access any of the values in the “usermeta” database table,
   including:
    - user_first
    - user_last
    - user_bio
    - nickname
    - description
 * I hope that gets you the results you seek. I am marking this topic resolved, 
   but please update it if you have any problems or further questions regarding 
   the example plugin. Thanks for your continued interest in the plugin.
 *  Thread Starter [ernstwg](https://wordpress.org/support/users/ernstwg/)
 * (@ernstwg)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/computed-copyright-information/#post-15087634)
 * Thank you David.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Computed Copyright Information’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [ernstwg](https://wordpress.org/support/users/ernstwg/)
 * Last activity: [4 years, 6 months ago](https://wordpress.org/support/topic/computed-copyright-information/#post-15087634)
 * Status: resolved