feat: exportColumns posters 列添加 formatter 数组转文本

src/modules/knowledge/views/film/index.vue

@@ -286,6 +286,25 @@ const exportColumns = computed(() => {
 	const cols: any[] = Table?.columns ? [...Table.columns] : [];
 	const base = cols.filter((e: any) => !['selection', 'expand', 'index', 'op'].includes(e.type));
 
+	// 为 posters 列添加 formatter（导出时 render 不会被调用，需要 formatter 将数组转为文本）
+	const postersCol = base.find((e: any) => e.prop === 'posters');
+	if (postersCol) {
+		postersCol.formatter = (_row: any, _col: any, value: any) => {
+			if (Array.isArray(value)) {
+				return value.join(', ');
+			}
+			if (typeof value === 'string') {
+				try {
+					const parsed = JSON.parse(value);
+					return Array.isArray(parsed) ? parsed.join(', ') : value;
+				} catch {
+					return value;
+				}
+			}
+			return String(value || '');
+		};
+	}
+
 	base.push(
 		{ label: '国家', prop: 'country', width: 100 },
 		{ label: '语言', prop: 'language', width: 100 },