FIX: Ensure all/none subcategory filters work correctly with tags

This is done by defining a `/all` route for use when a category's default filter is 'none'. This was defined for regular category routes in 3e7f7fdd, but not for tag routes.

This commit also corrects the route name TagsShowNoneCategory*Route -> TagsShowCategoryNone*Route, which fixes an error when setting subcategories=none while filtering by tags.

app/assets/javascripts/discourse/app/pre-initializers/dynamic-route-builders.js

@@ -61,6 +61,9 @@ export default {
     app["TagsShowCategoryNoneRoute"] = TagShowRoute.extend({
       noSubcategories: true,
     });
+    app["TagsShowCategoryAllRoute"] = TagShowRoute.extend({
+      noSubcategories: false,
+    });
 
     site.get("filters").forEach(function (filter) {
       app["TagShow" + filter.capitalize() + "Route"] = TagShowRoute.extend({
@@ -70,8 +73,11 @@ export default {
         "TagsShowCategory" + filter.capitalize() + "Route"
       ] = TagShowRoute.extend({ navMode: filter });
       app[
-        "TagsShowNoneCategory" + filter.capitalize() + "Route"
+        "TagsShowCategoryNone" + filter.capitalize() + "Route"
       ] = TagShowRoute.extend({ navMode: filter, noSubcategories: true });
+      app[
+        "TagsShowCategoryAll" + filter.capitalize() + "Route"
+      ] = TagShowRoute.extend({ navMode: filter, noSubcategories: false });
     });
   },
 };

app/assets/javascripts/discourse/app/routes/app-route-map.js

@@ -225,6 +225,9 @@ export default function () {
     this.route("showCategory", {
       path: "/c/*category_slug_path_with_id/:tag_id",
     });
+    this.route("showCategoryAll", {
+      path: "/c/*category_slug_path_with_id/all/:tag_id",
+    });
     this.route("showCategoryNone", {
       path: "/c/*category_slug_path_with_id/none/:tag_id",
     });
@@ -233,6 +236,9 @@ export default function () {
       this.route("showCategory" + filter.capitalize(), {
         path: "/c/*category_slug_path_with_id/:tag_id/l/" + filter,
       });
+      this.route("showCategoryAll" + filter.capitalize(), {
+        path: "/c/*category_slug_path_with_id/all/:tag_id/l/" + filter,
+      });
       this.route("showCategoryNone" + filter.capitalize(), {
         path: "/c/*category_slug_path_with_id/none/:tag_id/l/" + filter,
       });

app/assets/javascripts/discourse/app/routes/tag-show.js

@@ -75,8 +75,8 @@ export default DiscourseRoute.extend(FilterModeMixin, {
       category.setupGroupsAndPermissions();
       filter = `tags/c/${Category.slugFor(category)}/${category.id}`;
 
-      if (this.noSubcategories) {
-        filter += "/none";
+      if (this.noSubcategories !== undefined) {
+        filter += this.noSubcategories ? "/none" : "/all";
       }
 
       filter += `/${tagId}/l/${topicFilter}`;
@@ -120,12 +120,17 @@ export default DiscourseRoute.extend(FilterModeMixin, {
   },
 
   setupController(controller, model) {
+    const noSubcategories =
+      this.noSubcategories === undefined
+        ? model.category?.default_list_filter === "none"
+        : this.noSubcategories;
+
     this.controllerFor("tag.show").setProperties({
       model: model.tag,
       ...model,
       period: model.list.for_period,
       navMode: this.navMode,
-      noSubcategories: this.noSubcategories,
+      noSubcategories,
       loading: false,
     });
     this.searchService.set("searchContext", model.tag.searchContext);

app/assets/javascripts/discourse/tests/acceptance/tags-test.js

@@ -288,7 +288,12 @@ acceptance("Tag info", function (needs) {
       });
     });
 
-    server.get("/tags/c/faq/4/planters/l/latest.json", () => {
+    [
+      "/tags/c/faq/4/planters/l/latest.json",
+      "/tags/c/feature/2/planters/l/latest.json",
+      "/tags/c/feature/2/none/planters/l/latest.json",
+    ].forEach((url) => {
+      server.get(url, () => {
         return helper.response({
           users: [],
           primary_groups: [],
@@ -309,6 +314,7 @@ acceptance("Tag info", function (needs) {
           },
         });
       });
+    });
 
     server.get("/tag/planters/info", () => {
       return helper.response({
@@ -484,6 +490,20 @@ acceptance("Tag info", function (needs) {
     assert.strictEqual(currentURL(), "/tags/c/faq/4/planters");
   });
 
+  test("can switch between all/none subcategories", async function (assert) {
+    await visit("/tag/planters");
+
+    await click(".category-breadcrumb .category-drop-header");
+    await click('.category-breadcrumb .category-row[data-name="feature"]');
+    assert.strictEqual(currentURL(), "/tags/c/feature/2/planters");
+
+    await click(".category-breadcrumb li:nth-of-type(2) .category-drop-header");
+    await click(
+      '.category-breadcrumb li:nth-of-type(2) .category-row[data-name="none"]'
+    );
+    assert.strictEqual(currentURL(), "/tags/c/feature/2/none/planters");
+  });
+
   test("admin can manage tags", async function (assert) {
     updateCurrentUser({ moderator: false, admin: true });
 

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

@@ -461,6 +461,7 @@ export default {
           show_subcategory_list: true,
           default_view: "latest",
           subcategory_list_style: "boxes",
+          default_list_filter: "all",
         },
         {
           id: 240,

config/routes.rb

@@ -952,9 +952,11 @@ Discourse::Application.routes.draw do
         scope path: '/c/*category_slug_path_with_id' do
           Discourse.filters.each do |filter|
             get "/none/:tag_id/l/#{filter}" => "tags#show_#{filter}", as: "tag_category_none_show_#{filter}", defaults: { no_subcategories: true }
+            get "/all/:tag_id/l/#{filter}" => "tags#show_#{filter}", as: "tag_category_all_show_#{filter}", defaults: { no_subcategories: false }
           end
 
           get '/none/:tag_id' => 'tags#show', as: 'tag_category_none_show', defaults: { no_subcategories: true }
+          get '/all/:tag_id' => 'tags#show', as: 'tag_category_all_show', defaults: { no_subcategories: false }
 
           Discourse.filters.each do |filter|
             get "/:tag_id/l/#{filter}" => "tags#show_#{filter}", as: "tag_category_show_#{filter}"