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DOC: Fix aggregated query to avoid deprecation (#3904) [ci skip]

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rhymes 2019-09-03 21:49:26 +02:00 • committed by Mac Siri
parent 3c4dce0521
commit 0bafec4b4b
1 changed files with 6 additions and 5 deletions
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11
docs/backend/roles.md
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@ -26,19 +26,20 @@ A new user starts without a any roles and there is no administrative way of addi
rails console
```
1. After verifying the user `test_user_name` is missing the `pro` role we proceed to add and then verify the role has been added.
- after verifying the user `test_user_name` is missing the `pro` role we proceed to add it and then verify the role has been added:
```ruby
User.find_by(username: 'test_user_name').has_role? :pro
> user = User.find_by(username: "test_user_name")
> user.has_role? :pro
=> false
User.find_by(username: 'test_user_name').add_role :pro
> user.add_role :pro
=> #<Role:
...
name: "pro"
.. >
User.find_by(username: 'test_user_name').has_role? :pro
> user.has_role? :pro
=> true
```
@ -49,7 +50,7 @@ Another common requirement is changing to the administrative role and an example
A more complex query to list all the users and their roles:
```ruby
User.joins(:roles).order(:id).group(:id).pluck(:id, :username,'array_agg(roles.name)')
User.joins(:roles).order(:id).group(:id).pluck(:id, :username, Arel.sql("array_agg(roles.name)"))
```
## Further Reading