bug: Optional Lexicon Field (#116)

* Add support for optional lexicon fields

Author: cbolles

packages/client/src/components/tag/view/TagGridView.component.tsx

@@ -88,7 +88,9 @@ export const TagGridView: React.FC<TagGridViewProps> = ({
       const properties = {} as any;
 
       for (const property of Object.getOwnPropertyNames(study.tagSchema.dataSchema.properties)) {
-        properties[property] = tag.data!.find((row) => row.name === property);
+        if (tag.data) {
+          properties[property] = tag.data!.find((row) => row.name === property);
+        }
       }
 
       newGridData.push({

packages/server/src/tag/transformers/asl-lex-transformer.ts

@@ -15,9 +15,14 @@ export class AslLexFieldTransformer implements FieldTransformer {
     _user: TokenPayload,
     property: string
   ): Promise<TagField> {
+    let tagData = null;
+    if (data) {
+      tagData = { key: data, lexicon: uischema.options?.lexicon._id };
+    }
+
     return {
       name: property,
-      data: { key: data, lexicon: uischema.options?.lexicon._id },
+      data: tagData,
       type: TagFieldType.ASL_LEX
     };
   }