Allow users to delete their own comments

app/assets/stylesheets/layout.scss

@@ -1940,6 +1940,20 @@ table {
     }
   }
 
+  .delete-comment {
+    @include has-fa-icon(trash-alt, regular);
+    color: $delete;
+
+    &:hover,
+    &:active {
+      color: $link-hover;
+    }
+
+    &::before {
+      transform: translateY(-1px);
+    }
+  }
+
   .comment-user {
     margin-top: $line-height / 4;
     padding: $line-height / 4 0;

app/controllers/comments_controller.rb

@@ -1,5 +1,5 @@
 class CommentsController < ApplicationController
-  before_action :authenticate_user!, only: :create
+  before_action :authenticate_user!, only: [:create, :hide]
   before_action :load_commentable, only: :create
   before_action :verify_resident_for_commentable!, only: :create
   before_action :verify_comments_open!, only: [:create, :vote]
@@ -46,6 +46,11 @@ class CommentsController < ApplicationController
     render "shared/_refresh_flag_actions", locals: { flaggable: @comment, divider: true }
   end
 
+  def hide
+    @comment.hide
+    set_comment_flags(@comment.subtree)
+  end
+
   private
 
     def comment_params

app/models/abilities/common.rb

@@ -49,6 +49,8 @@ module Abilities
       can [:create, :created], Proposal
       can :create, Legislation::Proposal
 
+      can :hide, Comment, user_id: user.id
+
       can :suggest, Debate
       can :suggest, Proposal
       can :suggest, Legislation::Proposal

app/models/abilities/moderation.rb

@@ -12,7 +12,6 @@ module Abilities
       can :read, Comment
 
       can :hide, Comment, hidden_at: nil
-      cannot :hide, Comment, user_id: user.id
 
       can :ignore_flag, Comment, ignored_flag_at: nil, hidden_at: nil
       cannot :ignore_flag, Comment, user_id: user.id

app/views/comments/_actions.html.erb

@@ -5,9 +5,16 @@
 <span class="js-moderation-actions">
   <% if can? :hide, comment %>
     <span class="divider">&nbsp;&bull;&nbsp;</span>
+    <% if comment.author == current_user %>
+      <%= link_to t("comments.actions.delete"),
+                  hide_comment_path(comment),
+                  method: :put, remote: true, class: "delete-comment",
+                  data: { confirm: t("comments.actions.confirm_delete") } %>
+    <% else %>
       <%= link_to t("admin.actions.hide").capitalize, hide_moderation_comment_path(comment),
                   method: :put, remote: true, data: { confirm: t("admin.actions.confirm") } %>
     <% end %>
+  <% end %>
 
   <% if can? :hide, comment.user %>
     <span class="divider">&nbsp;&bull;&nbsp;</span>

app/views/comments/hide.js.erb

@@ -0,0 +1 @@
+$("#<%= dom_id(@comment) %>").replaceWith("<%= j render("comment", comment: @comment) %>");

config/locales/en/general.yml

@@ -29,6 +29,9 @@ en:
     close: Close
     menu: Menu
   comments:
+    actions:
+      confirm_delete: "Are you sure? This action will delete this comment. You can't undo this action."
+      delete: "Delete comment"
     comments_closed: Comments are closed
     verified_only: To participate %{verify_account}
     comment:

config/locales/es/general.yml

@@ -29,6 +29,9 @@ es:
     close: Cerrar
     menu: Menú
   comments:
+    actions:
+      confirm_delete: "¿Estás seguro/a? Esta acción borrará este comentario. No puedes deshacer esta acción."
+      delete: "Borrar comentario"
     comments_closed: Los comentarios están cerrados
     verified_only: Para participar %{verify_account}
     comment:

config/routes/comment.rb

@@ -3,5 +3,6 @@ resources :comments, only: [:create, :show], shallow: true do
     post :vote
     put :flag
     put :unflag
+    put :hide
   end
 end

spec/models/abilities/common_spec.rb

@@ -65,9 +65,6 @@ describe Abilities::Common do
   it { should be_able_to(:show, user) }
   it { should be_able_to(:edit, user) }
 
-  it { should be_able_to(:create, Comment) }
-  it { should be_able_to(:vote, Comment)   }
-
   it { should     be_able_to(:index, Proposal) }
   it { should     be_able_to(:show, proposal) }
   it { should_not be_able_to(:vote, Proposal) }
@@ -97,6 +94,14 @@ describe Abilities::Common do
 
   it { should_not be_able_to(:manage, LocalCensusRecord) }
 
+  describe "Comment" do
+    it { should be_able_to(:create, Comment) }
+    it { should be_able_to(:vote, Comment) }
+
+    it { should be_able_to(:hide, own_comment) }
+    it { should_not be_able_to(:hide, comment) }
+  end
+
   describe "flagging content" do
     it { should be_able_to(:flag, debate)   }
     it { should be_able_to(:unflag, debate) }

spec/models/abilities/moderator_spec.rb

@@ -54,7 +54,7 @@ describe Abilities::Moderator do
     it { should be_able_to(:hide, comment) }
     it { should be_able_to(:hide_in_moderation_screen, comment) }
     it { should_not be_able_to(:hide, hidden_comment) }
-    it { should_not be_able_to(:hide, own_comment) }
+    it { should be_able_to(:hide, own_comment) }
 
     it { should be_able_to(:moderate, comment) }
     it { should_not be_able_to(:moderate, own_comment) }

spec/system/comments/debates_spec.rb

@@ -235,6 +235,58 @@ describe "Commenting debates" do
     expect(page).to have_content "Can't be blank"
   end
 
+  describe "Hide" do
+    scenario "Without replies" do
+      create(:comment, commentable: debate, user: user, body: "This was a mistake")
+
+      login_as(user)
+      visit debate_path(debate)
+
+      accept_confirm("Are you sure? This action will delete this comment. You can't undo this action.") do
+        within(".comment-body", text: "This was a mistake") { click_link "Delete comment" }
+      end
+
+      expect(page).not_to have_content "This was a mistake"
+      expect(page).not_to have_link "Delete comment"
+
+      visit debate_path(debate)
+
+      expect(page).not_to have_content "This was a mistake"
+      expect(page).not_to have_link "Delete comment"
+
+      logout
+      login_as(create(:administrator).user)
+
+      visit admin_hidden_comments_path
+
+      expect(page).to have_content "This was a mistake"
+    end
+
+    scenario "With replies" do
+      comment = create(:comment, commentable: debate, user: user, body: "Wrong comment")
+      create(:comment, commentable: debate, parent: comment, body: "Right reply")
+
+      login_as(user)
+      visit debate_path(debate)
+
+      accept_confirm("Are you sure? This action will delete this comment. You can't undo this action.") do
+        within(".comment-body", text: "Wrong comment") { click_link "Delete comment" }
+      end
+
+      within "#comments > .comment-list > li", text: "Right reply" do
+        expect(page).to have_content "This comment has been deleted"
+        expect(page).not_to have_content "Wrong comment"
+      end
+
+      visit debate_path(debate)
+
+      within "#comments > .comment-list > li", text: "Right reply" do
+        expect(page).to have_content "This comment has been deleted"
+        expect(page).not_to have_content "Wrong comment"
+      end
+    end
+  end
+
   scenario "Reply" do
     citizen = create(:user, username: "Ana")
     manuela = create(:user, username: "Manuela")