UX: transition to edit URL when adding a category (#11634)

app/assets/javascripts/discourse/app/controllers/edit-category-tabs.js

@@ -1,4 +1,5 @@
 import discourseComputed, { on } from "discourse-common/utils/decorators";
+import Category from "discourse/models/category";
 import Controller from "@ember/controller";
 import DiscourseURL from "discourse/lib/url";
 import I18n from "I18n";
@@ -106,6 +107,7 @@ export default Controller.extend({
               notification_level: NotificationLevels.REGULAR,
             });
             this.site.updateCategory(model);
+            this.transitionToRoute("editCategory", Category.slugFor(model));
           }
         })
         .catch((error) => {

app/assets/javascripts/discourse/tests/acceptance/category-new-test.js

@@ -1,5 +1,5 @@
 import { acceptance, queryAll } from "discourse/tests/helpers/qunit-helpers";
-import { click, fillIn, visit } from "@ember/test-helpers";
+import { click, currentURL, fillIn, visit } from "@ember/test-helpers";
 import DiscourseURL from "discourse/lib/url";
 import I18n from "I18n";
 import sinon from "sinon";
@@ -17,6 +17,12 @@ acceptance("Category New", function (needs) {
 
     await click("#save-category");
 
+    assert.equal(
+      currentURL(),
+      "/c/testing/edit/general",
+      "it transitions to the category edit route"
+    );
+
     assert.equal(
       queryAll(".edit-category-title h2").text(),
       I18n.t("category.edit_dialog_title", {

app/assets/javascripts/discourse/tests/fixtures/category-fixtures.js

@@ -38,5 +38,14 @@ export default {
       allow_badges: true,
       custom_fields: {}
     }
+  },
+  "/c/11/show.json": {
+    category: {
+      id: 11,
+      name: "testing",
+      color: "0088CC",
+      text_color: "FFFFFF",
+      slug: "testing"
+    }
   }
 };

app/assets/javascripts/discourse/tests/helpers/create-pretender.js

@@ -312,17 +312,13 @@ export function applyDefaultHandlers(pretender) {
     return response({ category });
   });
 
-  pretender.post("/categories", () => {
-    return response({
-      category: {
-        id: 11,
-        name: "testing",
-        color: "0088CC",
-        text_color: "FFFFFF",
-        slug: "testing",
-      },
-    });
-  });
+  pretender.post("/categories", () =>
+    response(fixturesByUrl["/c/11/show.json"])
+  );
+
+  pretender.get("/c/testing/find_by_slug.json", () =>
+    response(fixturesByUrl["/c/11/show.json"])
+  );
 
   pretender.get("/draft.json", (request) => {
     if (request.queryParams.draft_key === "new_topic") {