Fix one-to-many relationships allowing selecting multiple rows on both sides

packages/builder/src/components/backend/DataTable/modals/sheet/SheetCreateColumnModal.svelte

@@ -11,5 +11,7 @@
 </script>
 
 <Modal bind:this={modal}>
-  <CreateEditColumn on:updatecolumns={() => rows.actions.refreshSchema()} />
+  <CreateEditColumn
+    on:updatecolumns={() => rows.actions.refreshTableDefinition()}
+  />
 </Modal>

packages/builder/src/components/backend/DataTable/modals/sheet/SheetEditColumnModal.svelte

@@ -9,7 +9,7 @@
   let editColumnModal
 
   const updateColumns = () => {
-    rows.actions.refreshSchema()
+    rows.actions.refreshTableDefinition()
   }
 
   const editColumn = column => {

packages/frontend-core/src/components/sheet/cells/RelationshipCell.svelte

@@ -11,6 +11,8 @@
   export let schema
   export let onChange
 
+  $: selected && console.log(schema.relationshipType)
+
   const { API } = getContext("sheet")
 
   let isOpen = false
@@ -22,6 +24,7 @@
   let candidateIndex
   let lastSearchId
 
+  $: oneRowOnly = schema?.relationshipType === "one-to-many"
   $: editable = selected && !readonly
   $: results = getResults(searchResults, value)
   $: lookupMap = buildLookupMap(value, isOpen)
@@ -166,6 +169,9 @@
     if (value?.some(x => x._id === row._id)) {
       // If the row is already included, remove it and update the candidate
       // row to be the the same position if possible
+      if (oneRowOnly) {
+        await onChange([])
+      } else {
         const newValue = value.filter(x => x._id !== row._id)
         if (!newValue.length) {
           candidateIndex = null
@@ -173,9 +179,14 @@
           candidateIndex = Math.min(candidateIndex, newValue.length - 1)
         }
         await onChange(newValue)
+      }
     } else {
       // If we don't have this row, include it
+      if (oneRowOnly) {
+        await onChange([row])
+      } else {
         await onChange(sortRows([...(value || []), row]))
+      }
       candidateIndex = null
     }