I know actions can be done with Views Bulk Operations (VBO), but I just want a button in each row of a view of entities. When I press the button, the action is executed for that entity.
You could do this by writing a custom module:
- Define a path with a hook_menu. This path would accept the entity id as an argument. Read more at https://api.drupal.org/api/drupal/modules%21system%21system.api.php/function/hook_menu/7
- In the callback for the path, you invoke the rules event you want, or act on the entity however you want within code.
- In your view, add a global custom field that has the link/button pointing to this new path, with the proper entity ID.
The Button Field module also looks like it could help you do what you want: https://drupal.org/project/button_field
What you're asking for is perfectly possible using the Rules Link module (no need for VBO). Some details about this module (from its project page):
Features: ... The links are usually displayed using Views...
Usages: ... The Rules Link module will create a Views field for each link, which can be hidden, using the visibility conditions ...
However, assuming you're familiar with the basics of Views, it isn't obvious at first about how to actually add such extra column. The clue to get it to work, can be found in this part of the module's README.txt:
Rules Links link will create a Views field for each link, using the title of the link as title for the field. So if you have link for nodes with the delete 'Delete node', you'll find the Views field under name 'Content: Delete node'.
Below is a list (= Views result) of "All blocked/active users" shown to a user with role Administrator:
User name Active Created date Last login Hillary.Trump No 06/18/2016 - 13:45 Unblock user Donald.Clinton No 06/18/2016 - 13:42 Unblock user Someone.Else Yes 05/12/2016 - 12:09 09/17/2017 - 11:18 Pierre.Vriens Yes 03/11/2016 - 21:05 10/06/2017 - 16:04 Dries.Buytaert Yes 11/23/2015 - 10:11 09/17/2017 - 10:38 Anonymous No
Note the extra column added (to the right), with links labeled
Unblock user which are only shown for the blocked users, and not for Anonymous. After using (clicking) that link, for some user with
Active=No, the user's status becomes
Active (an example of "an action triggered on a user entity", as in your question), and the link is no longer shown for that user. If you wonder how to create such extra column (using Rules Link), refer to my answer to "How to show authorized users a link for relevant Views results using the Rules Link module?". Obviously, transforming such link into a button is just a matter of some (basic) CSS to be applied to that link.