For services with the broadcast permission this hides:
- the ‘View dashboard’ permission (and defaults it to _checked_) because
all users of broadcast services will need to see the dashboard
- the ‘Manage API keys’ permission (and defaults it to _not checked_)
because we don’t offer an API integration for broadcast services yet
– if we do we won’t want existing users to automatically get the
permission
It relabels:
- the ‘Send’ permission to ‘Prepare and approve’ to match the current,
slightly clunky language on the templates page
- the ‘Manage settings’ label to not refer to ‘usage’ because broadcast
services won’t incur cost
The data flow of other bits of our application looks like this:
```
API (returns JSON)
⬇
API client (returns a built in type, usually `dict`)
⬇
Model (returns an instance, eg of type `Service`)
⬇
View (returns HTML)
```
The user API client was architected weirdly, in that it returned a model
directly, like this:
```
API (returns JSON)
⬇
API client (returns a model, of type `User`, `InvitedUser`, etc)
⬇
View (returns HTML)
```
This mixing of different layers of the application is bad because it
makes it hard to write model code that doesn’t have circular
dependencies. As our application gets more complicated we will be
relying more on models to manage this complexity, so we should make it
easy, not hard to write them.
It also means that most of our mocking was of the User model, not just
the underlying JSON. So it would have been easy to introduce subtle bugs
to the user model, because it wasn’t being comprehensively tested. A lot
of the changed lines of code in this commit mean changing the tests to
mock only the JSON, which means that the model layer gets implicitly
tested.
For those reasons this commit changes the user API client to return
JSON, not an instance of `User` or other models.
