feat: flatten the nested columns of exported data

packages/server/src/models/SaleEstimate.Settings.ts

@@ -5,6 +5,8 @@ export default {
     sortField: 'estimate_date',
   },
   exportable: true,
+  exportFlattenOn: 'entries',
+
   importable: true,
   importAggregator: 'group',
   importAggregateOn: 'entries',
@@ -131,6 +133,33 @@ export default {
       type: 'boolean',
       exportable: true,
     },
+    entries: {
+      name: 'Entries',
+      accessor: 'entries',
+      type: 'collection',
+      collectionOf: 'object',
+      columns: {
+        itemName: {
+          name: 'Item Name',
+          accessor: 'item.name',
+        },
+        rate: {
+          name: 'Item Rate',
+          accessor: 'rateFormatted',
+        },
+        quantity: {
+          name: 'Item Quantity',
+          accessor: 'quantityFormatted',
+        },
+        description: {
+          name: 'Item Description',
+        },
+        amount: {
+          name: 'Item Amount',
+          accessor: 'totalFormatted',
+        },
+      },
+    },
   },
   fields2: {
     customerId: {
@@ -191,7 +220,7 @@ export default {
           relationModel: 'Item',
           relationImportMatch: ['name', 'code'],
           required: true,
-          importHint: "Matches the item name or code."
+          importHint: 'Matches the item name or code.',
         },
         rate: {
           name: 'invoice.field.rate',