feat(structure): add copy-all-column-names to table designer

apps/desktop/src/components/structure/TableStructureEditor.charsetCollation.spec.ts

@@ -37,6 +37,7 @@ vi.mock("@lucide/vue", async () => {
     Check: Icon,
     ChevronDown: Icon,
     ChevronUp: Icon,
+    ClipboardList: Icon,
     Copy: Icon,
     Database: Icon,
     Info: Icon,

apps/desktop/src/components/structure/TableStructureEditor.primaryKey.spec.ts

@@ -44,6 +44,7 @@ vi.mock("@lucide/vue", async () => {
     Check: Icon,
     ChevronDown: Icon,
     ChevronUp: Icon,
+    ClipboardList: Icon,
     Copy: Icon,
     Database: Icon,
     Info: Icon,

apps/desktop/src/components/structure/TableStructureEditor.vue

@@ -10,7 +10,7 @@ import { Input } from "@/components/ui/input";
 import { Badge } from "@/components/ui/badge";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { Dialog, DialogContent, DialogFooter, DialogHeader, DialogTitle } from "@/components/ui/dialog";
-import { AlertTriangle, Check, ChevronDown, ChevronLeft, ChevronRight, ChevronUp, Copy, Database, Info, KeyRound, ListChevronsUpDown, Loader2, Maximize2, Pencil, Plus, RefreshCw, RotateCcw, Save, Search, Settings, SlidersHorizontal, Trash2, UserRound, X } from "@lucide/vue";
+import { AlertTriangle, Check, ChevronDown, ChevronLeft, ChevronRight, ChevronUp, ClipboardList, Copy, Database, Info, KeyRound, ListChevronsUpDown, Loader2, Maximize2, Pencil, Plus, RefreshCw, RotateCcw, Save, Search, Settings, SlidersHorizontal, Trash2, UserRound, X } from "@lucide/vue";
 import { DropdownMenu, DropdownMenuCheckboxItem, DropdownMenuContent, DropdownMenuItem, DropdownMenuTrigger } from "@/components/ui/dropdown-menu";
 import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover";
 import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip";
@@ -34,6 +34,7 @@ import { joinSqlStatementsForScript } from "@/lib/sql/sqlBatchScript";
 import { formatGeneratedDdlIdentifierQuotes, omitDdlDatabaseQualifier, omitDdlIdentifierQuotes } from "@/lib/sql/ddlDisplay";
 import { splitSqlStatementRanges } from "@/lib/sql/sqlStatementRanges";
 import { copyToClipboard } from "@/lib/common/clipboard";
+import DataGridCopyColumnNamesDialog from "@/components/grid/DataGridCopyColumnNamesDialog.vue";
 import { formatSqlForDisplay, sqlFormatDialectForDbType, type SqlFormatDialect } from "@/lib/sql/sqlFormatter";
 import { queryTimeoutSecsForConcurrentIndex, queryTimeoutSecsForConnection } from "@/lib/sql/queryTimeout";
 import { safeLocalStorageGet, safeLocalStorageSet } from "@/lib/backend/safeStorage";
@@ -104,6 +105,8 @@ import {
   structureColumnSelectionRange,
   isSyntheticContextMenuClick,
   resolveColumnSelectionActiveId,
+  structureColumnCommentsForCopy,
+  structureColumnNamesForCopy,
   tableStructureIdentifierComparisonKey,
   toColumnNames,
 } from "@/lib/table/tableStructureEditorState";
@@ -3706,6 +3709,20 @@ async function recordStructureHistory(sql: string, start: number, success: boole
   }
 }
 
+const copyColumnNamesDialogOpen = ref(false);
+// Fields marked for drop no longer exist after saving, so they are excluded.
+const copyableStructureColumnNames = computed(() => structureColumnNamesForCopy(columns.value));
+const copyableStructureColumnComments = computed(() => structureColumnCommentsForCopy(columns.value));
+
+async function copyColumnNamesText(text: string) {
+  try {
+    await copyToClipboard(text);
+    toast(t("grid.copied"));
+  } catch (e: any) {
+    toast(t("grid.copyFailed", { message: e?.message || String(e) }), 5000);
+  }
+}
+
 async function copyPreviewSql() {
   if (sqlPreviewPending.value || sqlPreviewLoading.value || !previewSqlText.value.trim()) return;
   try {
@@ -4438,6 +4455,10 @@ watch(
                 <Copy :class="structureIconClass" />
                 {{ t("structureEditor.copyColumns") }}
               </Button>
+              <Button v-if="activeTab === 'columns'" size="sm" variant="outline" :class="structureToolbarButtonClass" :disabled="copyableStructureColumnNames.length === 0" @click="copyColumnNamesDialogOpen = true">
+                <ClipboardList :class="structureIconClass" />
+                {{ t("grid.copyColumnNames") }}
+              </Button>
               <Button v-if="isCreateMode && activeTab === 'columns'" size="sm" variant="outline" :class="structureToolbarButtonClass" :disabled="!canAddColumn" @click="applyColumnTemplate(PRESET_FIELDS_TEMPLATE_ID)">
                 <Copy :class="structureIconClass" />
                 {{ t("structureEditor.columnTemplates") }}
@@ -5340,6 +5361,7 @@ watch(
       </Button>
     </div>
 
+    <DataGridCopyColumnNamesDialog v-model:open="copyColumnNamesDialogOpen" :column-names="copyableStructureColumnNames" :database-type="databaseType" :column-comments="copyableStructureColumnComments" @copy="copyColumnNamesText" />
     <Dialog v-model:open="copyColumnsDialogOpen">
       <DialogContent class="max-w-xl">
         <DialogHeader>

apps/desktop/src/components/structure/__tests__/TableStructureEditor.concurrentTransition.spec.ts

@@ -37,6 +37,7 @@ vi.mock("@lucide/vue", async () => {
     Check: Icon,
     ChevronDown: Icon,
     ChevronUp: Icon,
+    ClipboardList: Icon,
     Copy: Icon,
     Database: Icon,
     Info: Icon,

apps/desktop/src/components/structure/__tests__/TableStructureEditor.ddlTab.spec.ts

@@ -53,6 +53,7 @@ vi.mock("@lucide/vue", async () => {
     ChevronLeft: Icon,
     ChevronRight: Icon,
     ChevronUp: Icon,
+    ClipboardList: Icon,
     Copy: Icon,
     Database: Icon,
     Info: Icon,

apps/desktop/src/components/structure/__tests__/TableStructureEditor.ddlTabLifecycle.spec.ts

@@ -38,6 +38,7 @@ vi.mock("@lucide/vue", async () => {
     Check: Icon,
     ChevronDown: Icon,
     ChevronUp: Icon,
+    ClipboardList: Icon,
     Copy: Icon,
     Database: Icon,
     Info: Icon,

apps/desktop/src/components/structure/__tests__/TableStructureEditor.initialTab.spec.ts

@@ -43,6 +43,7 @@ vi.mock("@lucide/vue", async () => {
     ChevronLeft: Icon,
     ChevronRight: Icon,
     ChevronUp: Icon,
+    ClipboardList: Icon,
     Copy: Icon,
     Database: Icon,
     Info: Icon,

apps/desktop/src/components/structure/__tests__/TableStructureEditor.metadataRevalidation.spec.ts

@@ -46,6 +46,7 @@ vi.mock("@lucide/vue", async () => {
     ChevronLeft: Icon,
     ChevronRight: Icon,
     ChevronUp: Icon,
+    ClipboardList: Icon,
     Copy: Icon,
     Database: Icon,
     Info: Icon,

apps/desktop/src/lib/__tests__/table/tableStructureEditorState.spec.ts

@@ -26,6 +26,8 @@ import {
   resolveInsertColumnIndex,
   restoreCharacterLengthUnitsAfterSave,
   splitDataType,
+  structureColumnCommentsForCopy,
+  structureColumnNamesForCopy,
   tableStructureIdentifierComparisonKey,
 } from "@/lib/table/tableStructureEditorState";
 
@@ -703,3 +705,42 @@ describe("tableStructureEditorState", () => {
     expect(isMysqlCharacterDataType("geometry")).toBe(false);
   });
 });
+
+describe("structureColumnNamesForCopy", () => {
+  const column = (name: string, markedForDrop = false) => ({ name, markedForDrop });
+
+  it("keeps the visible field order", () => {
+    expect(structureColumnNamesForCopy([column("id"), column("name"), column("note")])).toEqual(["id", "name", "note"]);
+  });
+
+  it("drops fields marked for drop and blank names", () => {
+    expect(structureColumnNamesForCopy([column("id"), column("drop_me", true), column("  "), column(" name ")])).toEqual(["id", "name"]);
+  });
+
+  it("returns nothing for an empty table", () => {
+    expect(structureColumnNamesForCopy([])).toEqual([]);
+  });
+});
+
+describe("structureColumnCommentsForCopy", () => {
+  it("maps trimmed names to trimmed comments", () => {
+    const comments = structureColumnCommentsForCopy([
+      { name: "id", comment: " 主键 ", markedForDrop: false },
+      { name: "name", comment: "名称", markedForDrop: false },
+    ]);
+    expect([...comments]).toEqual([
+      ["id", "主键"],
+      ["name", "名称"],
+    ]);
+  });
+
+  it("skips dropped fields, blank comments and blank names", () => {
+    const comments = structureColumnCommentsForCopy([
+      { name: "gone", comment: "已删除", markedForDrop: true },
+      { name: "empty", comment: "   ", markedForDrop: false },
+      { name: "blank-name", comment: null, markedForDrop: false },
+      { name: "  ", comment: "没有字段名", markedForDrop: false },
+    ]);
+    expect(comments.size).toBe(0);
+  });
+});

apps/desktop/src/lib/table/tableStructureEditorState.ts

@@ -1,6 +1,26 @@
 import type { ColumnInfo, DatabaseConnectionInfo, DatabaseType, ForeignKeyInfo, IndexInfo, TriggerInfo } from "@/types/database.ts";
 import type { ColumnExtra, EditableStructureColumn, EditableStructureForeignKey, EditableStructureIndex, EditableStructureTrigger } from "@/lib/table/tableStructureEditorSql.ts";
 
+/**
+ * Column names offered by the structure editor's "copy all column names" action.
+ * Fields marked for drop disappear on save, so they are not offered.
+ */
+export function structureColumnNamesForCopy(columns: readonly Pick<EditableStructureColumn, "name" | "markedForDrop">[]): string[] {
+  return columns.filter((column) => !column.markedForDrop && column.name.trim()).map((column) => column.name.trim());
+}
+
+/** Comment lookup for the same action, keyed by the trimmed column name. */
+export function structureColumnCommentsForCopy(columns: readonly Pick<EditableStructureColumn, "name" | "comment" | "markedForDrop">[]): Map<string, string> {
+  const comments = new Map<string, string>();
+  for (const column of columns) {
+    if (column.markedForDrop) continue;
+    const name = column.name.trim();
+    const comment = column.comment?.trim();
+    if (name && comment) comments.set(name, comment);
+  }
+  return comments;
+}
+
 export function hasExistingColumnTypeChange(columns: readonly EditableStructureColumn[]): boolean {
   return columns.some((column) => !!column.original && !column.markedForDrop && column.dataType !== column.original.data_type);
 }