chore(nc-gui): replace flatMap with arr reduce

packages/nc-gui/components/erd/utils.ts

@@ -44,6 +44,12 @@ interface Relation {
   type: 'mm' | 'hm'
 }
 
+/**
+ * This util is used to generate the ERD graph elements and layout them
+ *
+ * @param tables
+ * @param props
+ */
 export function useErdElements(tables: MaybeRef<TableType[]>, props: MaybeRef<ERDConfig>) {
   const elements = ref<Elements<NodeData | EdgeData>>([])
 
@@ -163,8 +169,8 @@ export function useErdElements(tables: MaybeRef<TableType[]>, props: MaybeRef<ER
   }
 
   function createNodes() {
-    return erdTables.value.flatMap<Node<NodeData>[]>((table) => {
-      if (!table.id) return []
+    return erdTables.value.reduce<Node<NodeData>[]>((acc, table) => {
+      if (!table.id) return acc
 
       const columns =
         metasWithIdAsKey.value[table.id].columns?.filter(
@@ -175,8 +181,7 @@ export function useErdElements(tables: MaybeRef<TableType[]>, props: MaybeRef<ER
 
       const nonPkColumns = columns.filter((col) => !col.pk && col.uidt !== UITypes.ForeignKey)
 
-      return [
-        {
+      acc.push({
         id: table.id,
         data: {
           table: metasWithIdAsKey.value[table.id],
@@ -189,9 +194,10 @@ export function useErdElements(tables: MaybeRef<TableType[]>, props: MaybeRef<ER
         },
         type: 'custom',
         position: { x: 0, y: 0 },
-        } as Node<NodeData>,
-      ]
       })
+
+      return acc
+    }, [])
   }
 
   function createEdges() {