dmails: replace hard deletions with soft deletions.

Turn deletions into soft deletions (set the is_deleted flag) instead of
hard deletions (remove from database). The is_deleted flag actually
already existed, but it was never used before.

app/controllers/dmails_controller.rb

@@ -1,6 +1,6 @@
 class DmailsController < ApplicationController
   respond_to :html, :xml, :js, :json
-  before_action :member_only, except: [:index, :show, :update, :destroy, :mark_all_as_read]
+  before_action :member_only, except: [:index, :show, :update, :mark_all_as_read]
 
   def new
     if params[:respond_to_id]
@@ -18,7 +18,8 @@ class DmailsController < ApplicationController
     if params[:folder] && params[:set_default_folder]
       cookies.permanent[:dmail_folder] = params[:folder]
     end
-    @dmails = Dmail.active.visible.paginated_search(params, count_pages: true)
+
+    @dmails = Dmail.visible.paginated_search(params, defaults: { is_spam: false, is_deleted: false }, count_pages: true)
     respond_with(@dmails)
   end
 
@@ -43,14 +44,6 @@ class DmailsController < ApplicationController
     respond_with(@dmail)
   end
 
-  def destroy
-    @dmail = Dmail.find(params[:id])
-    check_privilege(@dmail)
-    @dmail.mark_as_read!
-    @dmail.destroy
-    redirect_to dmails_path, :notice => "Message destroyed"
-  end
-
   def mark_all_as_read
     Dmail.visible.unread.each do |x|
       x.update_column(:is_read, true)

app/models/application_record.rb

@@ -7,8 +7,10 @@ class ApplicationRecord < ActiveRecord::Base
         extending(PaginationExtension).paginate(*options)
       end
 
-      def paginated_search(params, count_pages: params[:search].present?)
+      def paginated_search(params, defaults: {}, count_pages: params[:search].present?)
         search_params = params.fetch(:search, {}).permit!
+        search_params = defaults.merge(search_params).with_indifferent_access
+
         search(search_params).paginate(params[:page], limit: params[:limit], search_count: count_pages)
       end
     end
@@ -93,7 +95,7 @@ class ApplicationRecord < ActiveRecord::Base
       end
 
       def search_boolean_attribute(attribute, params)
-        return all unless params[attribute]
+        return all unless params.key?(attribute)
 
         value = params[attribute].to_s
         if value.truthy?

app/models/dmail.rb

@@ -136,8 +136,6 @@ class Dmail < ApplicationRecord
       q = q.text_attribute_matches(:title, params[:title_matches])
       q = q.text_attribute_matches(:body, params[:message_matches], index_column: :message_index)
 
-      params[:is_spam] = false unless params[:is_spam].present?
-
       q = q.read if params[:read].to_s.truthy?
       q = q.unread if params[:read].to_s.falsy?
 

app/views/dmails/_secondary_links.html.erb

@@ -4,6 +4,7 @@
   <%= subnav_link_to "Received", received_dmails_path(set_default_folder: true) %>
   <%= subnav_link_to "Sent", sent_dmails_path(set_default_folder: true) %>
   <%= subnav_link_to "Spam", spam_dmails_path %>
+  <%= subnav_link_to "Deleted", dmails_path(search: { is_deleted: true }) %>
   <li>|</li>
   <%= subnav_link_to "New", new_dmail_path %>
   <%= subnav_link_to "Mark all as read", {:controller => "dmails", :action => "mark_all_as_read"}, :method => :post, :remote => true %></li>

app/views/dmails/index.html.erb

@@ -27,7 +27,14 @@
         <%= link_to dmail.title, dmail_path(dmail) %>
       <% end %>
       <% t.column do |dmail| %>
-        <%= link_to "delete", dmail_path(dmail), :method => :delete, :data => {:confirm => "Are you sure you want to delete this Dmail?"} %>
+        <% if dmail.is_deleted? %>
+          <%= link_to "Undelete", dmail_path(dmail, format: :js), remote: true, method: :put, "data-params": "dmail[is_deleted]=false" %>
+        <% else %>
+          <%= link_to "Delete", dmail_path(dmail, format: :js), remote: true, method: :put, "data-params": "dmail[is_deleted]=true", "data-confirm": "Are you sure you want to delete this dmail?" %>
+        <% end %>
+        <% if dmail.reportable_by?(CurrentUser.user) %>
+          | <%= link_to "Report", new_moderation_report_path(moderation_report: { model_type: "Dmail", model_id: dmail.id }), remote: true, title: "Report this dmail to the moderators" %>
+        <% end %>
       <% end %>
     <% end %>
 

config/routes.rb

@@ -110,7 +110,7 @@ Rails.application.routes.draw do
       put :cancel
     end
   end
-  resources :dmails, :only => [:new, :create, :update, :index, :show, :destroy] do
+  resources :dmails, :only => [:new, :create, :update, :index, :show] do
     collection do
       post :mark_all_as_read
     end

test/functional/dmails_controller_test.rb

@@ -94,18 +94,19 @@ class DmailsControllerTest < ActionDispatch::IntegrationTest
       end
     end
 
-    context "destroy action" do
+    context "update action" do
       should "allow deletion if the dmail is owned by the current user" do
-        assert_difference("Dmail.count", -1) do
-          delete_auth dmail_path(@dmail), @user
-          assert_redirected_to dmails_path
-        end
+        put_auth dmail_path(@dmail), @user, params: { dmail: { is_deleted: true } }
+
+        assert_redirected_to dmail_path(@dmail)
+        assert_equal(true, @dmail.reload.is_deleted)
       end
 
       should "not allow deletion if the dmail is not owned by the current user" do
-        assert_difference("Dmail.count", 0) do
-          delete_auth dmail_path(@dmail), @unrelated_user
-        end
+        put_auth dmail_path(@dmail), @unrelated_user, params: { dmail: { is_deleted: true } }
+
+        assert_response 403
+        assert_equal(false, @dmail.reload.is_deleted)
       end
     end
   end