I'm new to drupal, so sorry if this is a stupid question.
While developing a module, is it possible to add a tab to the /admin/content page (where by default there is content, comments, files)
Currently using 8.0.6
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2 Answers
Similar to Drupal 7, tabs are called "local tasks". Your module should implement a local task and a route.
The complexity in this is that /admin/content is a views-generated route with a system module fallback in case the view is disabled (as explained by @Berdir below), and the base route should be system.admin_content.
mymodule.mytask:
title: 'My Task'
route_name: 'mymodule.mytask.route'
base_route: 'system.admin_content'
weight: 1
If the view itself isn't altered, then the route is view.ID.page_NUMBER. I've done this latter thing working on an entity example module in my sandbox (Shift).
answered Apr 8, 2016 at 18:14
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1Almost correct, /admin/content is a special case that's defined in system.routing.yml and then overridden, so that there's a fallback if views/node isn't enabled. The route name is system.admin_content, see comment.links.task.yml– BerdirCommented Apr 8, 2016 at 18:16
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I was so close... Had implemented the route and added it to system.admin_content. Just in the .links.menu.yml file not the task one.– JazzerCommented Apr 8, 2016 at 21:37
The tab "file" for example is configured in a view:
admin/structure/views/view/files:
PAGE SETTINGS
Path:/admin/content/files
Menu:Tab: Files
You can do the same with yml files in your module:
Providing module-defined menu links
An example from core module comment:
mymodule.links.task.yml:
comment.admin:
title: Comments
route_name: comment.admin
base_route: system.admin_content
(credit: comment from Berdir)
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Sorry. I saw your answer second so the tick went to mradcliffe. Good answer and thanks for the links too.– JazzerCommented Apr 8, 2016 at 21:41