automatically ignore known forwarded addresses, fixes #64

vendor/go.mau.fi/util/dbutil/json.go

@@ -0,0 +1,33 @@
+package dbutil
+
+import (
+	"database/sql/driver"
+	"encoding/json"
+	"fmt"
+)
+
+// JSON is a utility type for using arbitrary JSON data as values in database Exec and Scan calls.
+type JSON struct {
+	Data any
+}
+
+func (j JSON) Scan(i any) error {
+	switch value := i.(type) {
+	case nil:
+		return nil
+	case string:
+		return json.Unmarshal([]byte(value), j.Data)
+	case []byte:
+		return json.Unmarshal(value, j.Data)
+	default:
+		return fmt.Errorf("invalid type %T for dbutil.JSON.Scan", i)
+	}
+}
+
+func (j JSON) Value() (driver.Value, error) {
+	if j.Data == nil {
+		return nil, nil
+	}
+	v, err := json.Marshal(j.Data)
+	return string(v), err
+}