fix: improve mongodb legacy connection params

src/components/connection/ConnectionDialog.vue

@@ -401,7 +401,7 @@ async function testConnection() {
   isTesting.value = true;
   testResult.value = null;
   try {
-    const config: ConnectionConfig = { ...form.value, id: editingId.value || uuid() };
+    const config = connectionConfigForSubmit(editingId.value || uuid());
     const msg = await api.testConnection(config);
     if (runId !== testRunId) return;
     testResult.value = { ok: true, message: msg };
@@ -415,6 +415,14 @@ async function testConnection() {
   }
 }
 
+function connectionConfigForSubmit(id: string): ConnectionConfig {
+  const config: ConnectionConfig = { ...form.value, id };
+  if (config.db_type === "mongodb" && !mongoUseUrl.value) {
+    config.connection_string = undefined;
+  }
+  return config;
+}
+
 function resetTestState() {
   testRunId += 1;
   isTesting.value = false;
@@ -462,11 +470,11 @@ async function save() {
   resetTestState();
   try {
     if (editingId.value) {
-      const updated: ConnectionConfig = { ...form.value, id: editingId.value };
+      const updated = connectionConfigForSubmit(editingId.value);
       await store.updateConnection(updated);
       store.stopEditing();
     } else {
-      const config: ConnectionConfig = { ...form.value, id: uuid() };
+      const config = connectionConfigForSubmit(uuid());
       await store.addConnection(config);
       open.value = false;
       await nextTick();
@@ -757,6 +765,20 @@ async function browseSshKeyPath() {
                         :placeholder="t('connection.databasePlaceholder')"
                       />
                     </div>
+                    <div class="grid grid-cols-4 items-center gap-4">
+                      <Label class="text-right">{{ t("connection.urlParams") }}</Label>
+                      <Input
+                        v-model="form.url_params"
+                        class="col-span-3"
+                        placeholder="authSource=admin&authMechanism=SCRAM-SHA-1"
+                      />
+                    </div>
+                    <div class="grid grid-cols-4 items-start gap-4">
+                      <span />
+                      <p class="col-span-3 text-xs text-muted-foreground">
+                        {{ t("connection.mongoLegacyHint") }}
+                      </p>
+                    </div>
                   </template>
                 </template>
 

src/i18n/locales/en.ts

@@ -112,6 +112,8 @@ export default {
     sshKeyPathBrowse: "Browse",
     sshExposeLan: "Expose tunnel to LAN",
     dmCompatHint: "Requires DM PG compatibility mode (set COMPATIBLE_MODE=7 in dm.ini and restart)",
+    mongoLegacyHint:
+      "MongoDB form connections add directConnection automatically; authenticated connections default to the selected database as auth source (admin when blank) and SCRAM-SHA-1, which you can override here.",
     compatible: "Compatible",
     mainstream: "Popular",
     color: "Color",

src/i18n/locales/zh-CN.ts

@@ -111,6 +111,8 @@ export default {
     sshKeyPathBrowse: "浏览",
     sshExposeLan: "允许局域网访问隧道",
     dmCompatHint: "需要开启达梦 PG 兼容模式（dm.ini 中设置 COMPATIBLE_MODE=7 并重启服务）",
+    mongoLegacyHint:
+      "MongoDB 表单连接会自动补充 directConnection；带用户名时默认使用当前数据库认证源（留空为 admin）和 SCRAM-SHA-1，可在此覆盖。",
     compatible: "兼容",
     mainstream: "主流",
     color: "颜色",