Added inventaire import from ISBN

internal/inventaire/inventaireeditionfromid.go

@@ -16,6 +16,14 @@ type InventaireEditionDetailedSingleResult struct {
 	Lang        string
 }
 
+type ErrorEditionNotFound struct {
+	InventaireId string
+}
+
+func (e *ErrorEditionNotFound) Error() string {
+	return fmt.Sprintf("No edition found on inventaire for id %s\n", e.InventaireId)
+}
+
 func CallInventaireEdition(inventaireId string, lang string) (InventaireEditionDetailedSingleResult, error) {
 	var result InventaireEditionDetailedSingleResult
 	editionQueryResults, err := callInventaireEditionEntities([]string{inventaireId})
@@ -24,7 +32,7 @@ func CallInventaireEdition(inventaireId string, lang string) (InventaireEditionD
 	}
 	var editionQueryResult inventaireEditionQueryEntity
 	if len(editionQueryResults.Entities) < 1 {
-		return result, fmt.Errorf("No edition found on inventaire for id %s", inventaireId)
+		return result, &ErrorEditionNotFound{InventaireId: inventaireId}
 	}
 
 	editionQueryResult = editionQueryResults.Entities[0]