Add Zod's built-in string transformations as field attributes (#981)

Co-authored-by: Yiming <[email protected]>

Author: simonedelmann

packages/schema/src/plugins/zod/utils/schema-gen.ts

@@ -89,6 +89,18 @@ export function makeFieldSchema(field: DataModelField, respectDefault = false) {
                 schema += `.url(${messageArgFirst})`;
                 break;
             }
+            case '@trim': {
+                schema += `.trim()`;
+                break;
+            }
+            case '@lower': {
+                schema += `.toLowerCase()`;
+                break;
+            }
+            case '@upper': {
+                schema += `.toUpperCase()`;
+                break;
+            }
             case '@datetime': {
                 schema += `.datetime({ offset: true${message ? ', message: ' + JSON.stringify(message) : ''} })`;
                 break;

packages/schema/src/res/stdlib.zmodel

@@ -514,6 +514,21 @@ attribute @datetime(_ message: String?) @@@targetField([StringField]) @@@validat
  */
 attribute @url(_ message: String?) @@@targetField([StringField]) @@@validation
 
+/**
+ * Trims whitespaces from the start and end of the string.
+ */
+attribute @trim() @@@targetField([StringField]) @@@validation
+
+/**
+ * Transform entire string toLowerCase.
+ */
+attribute @lower() @@@targetField([StringField]) @@@validation
+
+/**
+ * Transform entire string toUpperCase.
+ */
+attribute @upper() @@@targetField([StringField]) @@@validation
+
 /**
  * Validates a number field is greater than the given value.
  */