#228

backend/app/controllers/tags_controller.rb

@@ -49,13 +49,19 @@ class TagsController < ApplicationController
     return head :unauthorized unless current_user
     return head :forbidden unless current_user.member?
 
+    name = params[:name].presence
+    category = params[:category].presence
+
     tag = Tag.find(params[:id])
 
-    attrs = { name: params[:name].presence,
-              category: params[:category].presence }.compact
+    if name.present?
+      tag.tag_name.update!(name:)
+    end
 
-    tag.update!(attrs) if attrs.present?
+    if category.present?
+      tag.update!(category:)
+    end
 
-    render json: tag
+    render json: tag.as_json(methods: [:name])
   end
 end

backend/spec/factories/users.rb

@@ -7,5 +7,9 @@ FactoryBot.define do
     trait :member do
       role { "member" }
     end
+
+    trait :admin do
+      role { 'admin' }
+    end
   end
 end

backend/spec/requests/tag_children_spec.rb

@@ -0,0 +1,134 @@
+# spec/requests/tag_children_spec.rb
+require "rails_helper"
+
+RSpec.describe "TagChildren", type: :request do
+  let!(:parent) { create(:tag) }
+  let!(:child)  { create(:tag) }
+
+  # ここは君のUser factoryに合わせて調整
+  let(:user) { create_member_user! }
+  let(:admin) { create_admin_user! }
+
+  # current_user を ApplicationController でスタブ
+  def stub_current_user(user_or_nil)
+    allow_any_instance_of(ApplicationController)
+      .to receive(:current_user)
+      .and_return(user_or_nil)
+  end
+
+  describe "POST /tag_children" do
+    subject(:do_request) do
+      post "/tags/#{ parent_id }/children/#{ child_id }"
+    end
+
+    context "when not logged in" do
+      let(:parent_id) { parent.id }
+      let(:child_id) { child.id }
+
+      it "returns 401" do
+        stub_current_user(nil)
+        do_request
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context "when logged in but not admin" do
+      let(:parent_id) { parent.id }
+      let(:child_id) { child.id }
+
+      it "returns 403" do
+        stub_current_user(user)
+        do_request
+        expect(response).to have_http_status(:forbidden)
+      end
+    end
+
+    context "when admin and params are present" do
+      before { stub_current_user(admin) }
+      let(:parent_id) { parent.id }
+      let(:child_id) { child.id }
+
+      it "returns 204 and adds child to parent.children" do
+        expect(parent.children).not_to include(child)
+
+        expect { do_request }
+          .to change { parent.reload.children.ids.include?(child.id) }
+          .from(false).to(true)
+
+        expect(response).to have_http_status(:no_content)
+      end
+    end
+
+    context "when Tag.find raises (invalid ids) it still returns 204" do
+      before { stub_current_user(admin) }
+
+      let(:parent_id) { -1 }
+      let(:child_id) { -1 }
+
+      it "returns 204 (rescue nil)" do
+        do_request
+        expect(response).to have_http_status(:no_content)
+      end
+    end
+  end
+
+  describe "DELETE /tag_children" do
+    subject(:do_request) do
+      delete "/tags/#{ parent_id }/children/#{ child_id }"
+    end
+
+    context "when not logged in" do
+      let(:parent_id) { parent.id }
+      let(:child_id) { child.id }
+
+      it "returns 401" do
+        stub_current_user(nil)
+        do_request
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context "when logged in but not admin" do
+      let(:parent_id) { parent.id }
+      let(:child_id) { child.id }
+
+      it "returns 403" do
+        stub_current_user(user)
+        do_request
+        expect(response).to have_http_status(:forbidden)
+      end
+    end
+
+    context "when admin and params are present" do
+      before do
+        stub_current_user(admin)
+        parent.children << child
+      end
+
+      let(:parent_id) { parent.id }
+      let(:child_id) { child.id }
+
+      it "returns 204 and removes child from parent.children" do
+        expect(parent.reload.children).to include(child)
+
+        expect { do_request }
+          .to change { parent.reload.children.ids.include?(child.id) }
+          .from(true).to(false)
+
+        expect(response).to have_http_status(:no_content)
+      end
+    end
+
+    context "when Tag.find raises (invalid ids) it still returns 204" do
+      before { stub_current_user(admin) }
+
+      let(:parent_id) { -1 }
+      let(:child_id) { -1 }
+
+      it "returns 204 (rescue nil)" do
+        do_request
+        expect(response).to have_http_status(:no_content)
+      end
+    end
+  end
+end

backend/spec/requests/tags_spec.rb

@@ -76,4 +76,103 @@ RSpec.describe 'Tags API', type: :request do
       expect(response).to have_http_status(:not_found)
     end
   end
+
+  # member? を持つ user を想定（Factory 側で trait 作ってもOK）
+  let(:member_user) { create(:user) }
+  let(:non_member_user) { create(:user) }
+
+  def stub_current_user(user)
+    allow_any_instance_of(ApplicationController).to receive(:current_user).and_return(user)
+  end
+
+  before do
+    allow(member_user).to receive(:member?).and_return(true)
+    allow(non_member_user).to receive(:member?).and_return(false)
+  end
+
+  describe "PATCH /tags/:id" do
+    context "未ログイン" do
+      before { stub_current_user(nil) }
+
+      it "401 を返す" do
+        patch "/tags/#{tag.id}", params: { name: "new" }
+        expect(response).to have_http_status(:unauthorized)
+      end
+    end
+
+    context "ログインしてゐるが member でない" do
+      before { stub_current_user(non_member_user) }
+
+      it "403 を返す" do
+        patch "/tags/#{tag.id}", params: { name: "new" }
+        expect(response).to have_http_status(:forbidden)
+      end
+    end
+
+    context "member" do
+      before { stub_current_user(member_user) }
+
+      it "name だけ更新できる" do
+        patch "/tags/#{tag.id}", params: { name: "new" }
+
+        expect(response).to have_http_status(:ok)
+
+        tag.reload
+        expect(tag.name).to eq("new")
+        expect(tag.category).to eq("general")
+
+        json = JSON.parse(response.body)
+        expect(json["id"]).to eq(tag.id)
+        expect(json["name"]).to eq("new")
+        expect(json["category"]).to eq("general")
+      end
+
+      it "category だけ更新できる" do
+        patch "/tags/#{tag.id}", params: { category: "meme" }
+
+        expect(response).to have_http_status(:ok)
+
+        tag.reload
+        expect(tag.name).to eq("spec_tag")
+        expect(tag.category).to eq("meme")
+      end
+
+      it "空文字は presence により無視され、更新は走らない（値が変わらない）" do
+        patch "/tags/#{tag.id}", params: { name: "", category: "   " }
+
+        expect(response).to have_http_status(:ok)
+
+        tag.reload
+        expect(tag.name).to eq("spec_tag")
+        expect(tag.category).to eq("general")
+      end
+
+      it "両方更新できる" do
+        patch "/tags/#{tag.id}", params: { name: "n", category: "meta" }
+
+        expect(response).to have_http_status(:ok)
+
+        tag.reload
+        expect(tag.name).to eq("n")
+        expect(tag.category).to eq("meta")
+      end
+
+      it "存在しない id だと RecordNotFound になる（通常は 404）" do
+        # Rails 設定次第で例外がそのまま上がる/404になる
+        # APIなら rescue_from で 404 にしてることが多いので、その場合は 404 を期待。
+        patch "/tags/999999999", params: { name: "x" }
+
+        expect(response.status).to be_in([404, 500])
+      end
+
+      it "バリデーションで update! が失敗したら（通常は 422 か 500）" do
+        patch "/tags/#{tag.id}", params: { name: 'new', category: 'nico' }
+
+        # rescue_from の実装次第で変はる:
+        # - RecordInvalid を 422 にしてるなら 422
+        # - 未処理なら 500
+        expect(response.status).to be_in([422, 500])
+      end
+    end
+  end
 end

backend/spec/support/test_records.rb

@@ -5,4 +5,11 @@ module TestRecords
                  role: 'member',
                  banned: false)
   end
+
+  def create_admin_user!
+    User.create!(name: 'spec admin',
+                 inheritance_code: SecureRandom.hex(16),
+                 role: 'admin',
+                 banned: false)
+  end
 end

backend/spec/tasks/post_similarity_calc_spec.rb

@@ -0,0 +1,34 @@
+require 'rails_helper'
+
+
+RSpec.describe 'post_similarity:calc' do
+  include RakeTaskHelper
+
+  it 'calls Similarity::Calc with Post and :tags' do
+    # 必要最低限のデータ
+    t1 = Tag.create!(name: "t1")
+    t2 = Tag.create!(name: "t2")
+    t3 = Tag.create!(name: "t3")
+
+    p1 = Post.create!(url: "https://example.com/1")
+    p2 = Post.create!(url: "https://example.com/2")
+    p3 = Post.create!(url: "https://example.com/3")
+
+    # kept スコープが絡むなら、PostTag がデフォで kept になる前提
+    PostTag.create!(post: p1, tag: t1)
+    PostTag.create!(post: p1, tag: t2)
+
+    PostTag.create!(post: p2, tag: t1)
+    PostTag.create!(post: p2, tag: t3)
+
+    PostTag.create!(post: p3, tag: t3)
+
+    expect { run_rake_task("post_similarity:calc") }
+      .to change { PostSimilarity.count }.from(0)
+
+    ps = PostSimilarity.find_by!(post_id: p1.id, target_post_id: p2.id)
+    ps_rev = PostSimilarity.find_by!(post_id: p2.id, target_post_id: p1.id)
+    expect(ps_rev.cos).to eq(ps.cos)
+  end
+end
+

backend/spec/tasks/tag_similarity_calc_spec.rb

@@ -0,0 +1,34 @@
+require 'rails_helper'
+
+
+RSpec.describe 'tag_similarity:calc' do
+  include RakeTaskHelper
+
+  it 'calls Similarity::Calc with Tag and :posts' do
+    # 必要最低限のデータ
+    t1 = Tag.create!(name: "t1")
+    t2 = Tag.create!(name: "t2")
+    t3 = Tag.create!(name: "t3")
+
+    p1 = Post.create!(url: "https://example.com/1")
+    p2 = Post.create!(url: "https://example.com/2")
+    p3 = Post.create!(url: "https://example.com/3")
+
+    # kept スコープが絡むなら、PostTag がデフォで kept になる前提
+    PostTag.create!(post: p1, tag: t1)
+    PostTag.create!(post: p1, tag: t2)
+
+    PostTag.create!(post: p2, tag: t1)
+    PostTag.create!(post: p2, tag: t3)
+
+    PostTag.create!(post: p3, tag: t3)
+
+    expect { run_rake_task("tag_similarity:calc") }
+      .to change { TagSimilarity.count }.from(0)
+
+    ps = TagSimilarity.find_by!(tag_id: t1.id, target_tag_id: t2.id)
+    ps_rev = TagSimilarity.find_by!(tag_id: t2.id, target_tag_id: t1.id)
+    expect(ps_rev.cos).to eq(ps.cos)
+  end
+end
+