Merge pull request #529 from NekohimeMusou/polyglot-fix

Fix: Monster tokens throw Polyglot errors

src/module/actor/data-model-monster.js

@@ -22,6 +22,30 @@ export default class OseDataModelMonster extends foundry.abstract.TypeDataModel
  );
  }
 
+ /**
+ * @inheritdoc
+ */
+ static migrateData(source) {
+ this.#migrateMonsterLanguages(source);
+
+ return super.migrateData(source);
+ }
+
+ /**
+ * Use an empty array for system.languages.value
+ * in order to suppress Polyglot errors.
+ * 
+ * @param {OseDataModelMonster} source - Source data to migrate
+ */
+ static #migrateMonsterLanguages(source) {
+ const languages = source.languages ?? {};
+
+ // If languages.value isn't an iterable, use an empty array
+ if (typeof languages?.value?.[Symbol.iterator] !== "function") {
+ languages.value = [];
+ }
+ }
+
  // @todo define schema options; stuff like min/max values and so on.
  static defineSchema() {
  const { StringField, NumberField, BooleanField, ObjectField, SchemaField } =

template.json

@@ -52,6 +52,9 @@
  "initiative": {
  "value": 0,
  "mod": 0
+ },
+ "languages": {
+ "value": []
  }
  },
  "spellcaster": {
@@ -131,9 +134,6 @@
  },
  "encumbrance": {
  "max": 1600
- },
- "languages": {
- "value": []
  }
  },
  "monster": {