chore(server): errors for database append additional context

[iainsproat]

Description & motivation

When database errors are thrown it is difficult to determine the context in which the error occurred. This includes context about the database the client was attempting to connect to and the current state of the connection pool in the client.
This information would greatly aid in debugging database related issues.

Changes:

• DatabaseError now requires the database client to be passed to it. The DatabaseError now attempts to gather additional context information and append it to the metadata information on the error.
• If additional data cannot be retrieved it is ignored and the error is created as before without additional information.

To-do before merge:

Screenshots:

Validation of changes:

When run locally against a non-existent database:

Checklist:

• My pull request follows the guidelines in the Contributing guide?
• My pull request does not duplicate any other open Pull Requests for the same update/change?
• My commits are related to the pull request and do not amend unrelated code or documentation.
• My code follows a similar style to existing code.
• I have added appropriate tests.
• I have updated or added relevant documentation.

References