20260722222510

code/fms/fms-vue/src/utils/dataChanges.js

@@ -0,0 +1,55 @@
+import { nextIdApi } from "@/services/api";
+
+export function cloneData(value) {
+  return JSON.parse(JSON.stringify(value));
+}
+
+export function diffRows(current, previous) {
+  const previousById = new Map(previous.map((item) => [String(item.b_id), item]));
+  const currentById = new Map(current.map((item) => [String(item.b_id), item]));
+  return {
+    inserts: current.filter((item) => !previousById.has(String(item.b_id))),
+    updates: current.filter((item) => {
+      const old = previousById.get(String(item.b_id));
+      return old && JSON.stringify(item) !== JSON.stringify(old);
+    }),
+    deletes: previous
+      .filter((item) => !currentById.has(String(item.b_id)))
+      .map((item) => ({ b_id: item.b_id })),
+  };
+}
+
+export async function allocateTemporaryIds(rowGroups) {
+  const temporaryIds = [
+    ...new Set(
+      rowGroups
+        .flat()
+        .map((row) => String(row?.b_id ?? ""))
+        .filter((id) => /^-\d+$/.test(id)),
+    ),
+  ];
+  const generated = await Promise.all(temporaryIds.map(() => nextIdApi()));
+  const mapping = new Map(temporaryIds.map((id, index) => [id, String(generated[index].data)]));
+  rowGroups.flat().forEach((row) => {
+    const id = mapping.get(String(row?.b_id));
+    if (id) row.b_id = id;
+  });
+  return mapping;
+}
+
+export function remapForeignKeys(rows, fields, mapping) {
+  rows.forEach((row) => {
+    fields.forEach((field) => {
+      const value = mapping.get(String(row[field]));
+      if (value) row[field] = value;
+    });
+  });
+}
+
+export function tableChange(table, changes) {
+  return { table, key_field: "b_id", ...changes };
+}
+
+export function hasChanges(request) {
+  return request.inserts?.length || request.updates?.length || request.deletes?.length;
+}