| Field | Description |
|---|---|
| CK Exists | The new client key in the lifecle event already exists in the database |
| BURL Missing | The new base url does not exist in the database |
| BURL Different | The new base url does exist in the database but the new client key from the request is different to the one in the database |
| BURL Same | The new base url does exist in the database and the client key from the request is the same as the one in the database |
The "CK Exists" is a boolean and the BURL is a ternary.
| CK | BURL | Reaction | Safe? |
|---|---|---|---|
| False | Missing | This is the basic case, you have never seen this client key or base url before. Just accept the installation. | Safe |
| False | Different | The client keys have changed for the same base url. DANGER! Fail installation. | Dangerous |
| False | Same | Invalid state; indicative of major bug in your code or database. Investigate further. Client key could and could not be found at the same time in your database. | Dangerous |
| True | Missing | The same client key exists in the database but the baseUrl is changing. DANGER! Base URL Redirect attempt. Fail installation. | Dangerous |
| True | Different | The client keys have changed for the same base url. DANGER! Fail installation. | Dangerous |
| True | Same | This is what a reinstall will look like. But there is no way to verify that this request is still the same host. Don't update data. | Caution |