ValidateEmail checks that the Email field is not an empty string and that it matches the regex for email addresses, validator.EmailRX.

ValidateFilters runs validation checks on the Filters type.

ValidatePasswordPlaintext validtes that the password is not an empty string and is between 8 and 72 bytes long.

ScopeActivation defines the "activate" scope for scope in the tokens table.

ScopeActivation defines the "activate" scope for scope in the tokens table.

ErrEditConflict is returned when a there is a data race, and we have an edit conflict.

ErrRecordNotFound is returned when a record doesn't exist in database.

Metadata holds pagination metadata.

Permissions holds the permission codes for a single user.