Updating filter modal to manage invalid schemas when view created.

packages/builder/src/components/backend/DataTable/modals/FilterModal.svelte

@@ -69,6 +69,7 @@
     ({ _id }) => _id === $views.selected?.tableId
   )
   $: fields = viewTable && Object.keys(viewTable.schema)
+  $: schema = viewTable && viewTable.schema ? viewTable.schema : {}
 
   function saveView() {
     views.save(view)
@@ -90,29 +91,29 @@
 
   function isMultipleChoice(field) {
     return (
-      viewTable.schema[field]?.constraints?.inclusion?.length ||
-      viewTable.schema[field]?.type === "boolean"
+      schema[field]?.constraints?.inclusion?.length ||
+      schema[field]?.type === "boolean"
     )
   }
 
   function fieldOptions(field) {
-    return viewTable.schema[field]?.type === "options"
-      ? viewTable.schema[field]?.constraints.inclusion
+    return schema[field]?.type === "options"
+      ? schema[field]?.constraints.inclusion
       : [true, false]
   }
 
   function isDate(field) {
-    return viewTable.schema[field]?.type === "datetime"
+    return schema[field]?.type === "datetime"
   }
 
   function isNumber(field) {
-    return viewTable.schema[field]?.type === "number"
+    return schema[field]?.type === "number"
   }
 
   const fieldChanged = filter => ev => {
     // Reset if type changed
-    const oldType = viewTable.schema[filter.key]?.type
-    const newType = viewTable.schema[ev.detail]?.type
+    const oldType = schema[filter.key]?.type
+    const newType = schema[ev.detail]?.type
     if (filter.key && ev.detail && oldType !== newType) {
       filter.value = ""
     }