Create a Data Logger dialog can present incorrect errors

[axelstudios]

Describe the bug
Create a Data Logger dialog has multiple required inputs, but returns incorrect errors if those fields don't have values.

For instance, if you attempt to submit only a name, the returned error is that the name isn't unique even if it actually is (the real error in this case is null value in column "location_description" violates not-null constraint).

If you then submit a value for the Location Description, the next suppressed error is null value in column "identifier" violates not-null constraint.

Expected Behavior
When submitting form inputs, errors should be reported accurately, and the form should not allow submission without values in the three required fields:

• Display Name
• Datalogger ID
• Location Description

Actual Behavior

Steps to Reproduce

1. Go to the Sensors page for a property
2. Attempt to create a data logger given only a unique name