I can't find (understand) how to add items and cathegories to Left Side Admin Menu. There is no detailed tutorial how to do this. I can add items to sonata.admin.block.admin_list but to aside Admin Menu enter image description here
You need to add a route to your routing:
admin.blog_post:
class: db306\CoreBundle\Admin\BlogPostAdmin
arguments: [~, db306\CoreBundle\Entity\BlogPost, ~]
tags:
- { name: sonata.admin, manager_type: orm, group: Content, label: Blog post }
public: true
admin.category:
class: db306\CoreBundle\Admin\CategoryAdmin
arguments: [~, db306\CoreBundle\Entity\Category, ~]
tags:
- { name: sonata.admin, manager_type: orm, group: Content, label: Category }
public: true
This will display a "Content" tab on that menu displayed on your screenshot with 2 options: 'Blog post' and 'Category'