WIP

hub/errs/db.go

@@ -0,0 +1,33 @@
+package errs
+
+import (
+	"database/sql"
+	"errors"
+	"log"
+
+	sqlite3 "github.com/mattn/go-sqlite3"
+)
+
+func DB(err error) error {
+	if err == nil {
+		return nil
+	}
+
+	if _, ok := err.(*Error); ok {
+		return err
+	}
+
+	if err == sql.ErrNoRows {
+		return ErrNotFound
+	}
+
+	var se sqlite3.Error
+	if errors.As(err, &se) {
+		switch se.ExtendedCode {
+		case sqlite3.ErrConstraintUnique, sqlite3.ErrConstraintPrimaryKey:
+			return ErrAlreadyExists
+		}
+	}
+	log.Printf("Unexpected error: %v", err)
+	return ErrUnexpected
+}