FEATURE: support listing user solutions in user page

assets/javascripts/discourse/connectors/user-activity-bottom/solved-list.hbs

@@ -0,0 +1,3 @@
+{{#link-to 'userActivity.solved'}}
+  <i class="glyph fa fa-check-square"></i>{{i18n 'solved.title'}}
+{{/link-to}}

assets/javascripts/discourse/connectors/user-summary-stat/solved-count.hbs

@@ -0,0 +1,3 @@
+{{#link-to 'userActivity.solved'}}
+  {{user-stat value=model.solved_count label="solved.solution_summary"}}
+{{/link-to}}

assets/javascripts/discourse/routes/user-activity-solved.js.es6

@@ -0,0 +1,6 @@
+import UserActivityStreamRoute from "discourse/routes/user-activity-stream";
+
+export default UserActivityStreamRoute.extend({
+  userActionType: 15,
+  noContentHelpKey: "solved.no_solutions"
+});

assets/javascripts/discourse/solved-route-map.js.es6

@@ -0,0 +1,6 @@
+export default {
+  resource: 'user.userActivity',
+  map() {
+     this.route('solved');
+  }
+};

config/locales/client.en.yml

@@ -1,11 +1,15 @@
 en:
   js:
     solved:
+      title: "Solved"
       allow_accepted_answers: "Allow topic owner and staff to mark a reply as the solution"
       accept_answer: "This reply solves the problem"
       has_accepted_answer: "This topic has a solution"
       unaccept_answer: "This reply no longer solves the problem"
       accepted_answer: "Solution"
       solution: "Solution"
+      solution_summary:
+        one: "solution <i class='fa fa-check-square'></i>"
+        other: "solutions <i class='fa fa-check-square'></i>"
       accepted_html: "<i class='fa-check-square fa accepted'></i> Solved <span class='by'>by <a href data-user-card='{{username_lower}}'>{{username}}</a></span> in <a href='{{post_path}}'>post #{{post_number}}</a>"
       accepted_notification: "<i title='accepted' class='fa fa-check-square'></i><p><span>{{username}}</span> {{description}}</p>"

config/locales/server.en.yml

@@ -7,3 +7,7 @@ en:
       title: "Accepted solutions"
       xaxis: "Day"
       yaxis: "Total"
+  solved:
+    no_solutions:
+      self: "You have no accepted solutions yet."
+      others: "No accepted solutions."

plugin.rb

@@ -9,6 +9,44 @@ register_asset 'stylesheets/solutions.scss'
 
 after_initialize do
 
+  # we got to do a one time upgrade
+  if defined?(UserAction::SOLVED)
+    unless $redis.get('solved_already_upgraded')
+      unless UserAction.where(action_type: UserAction::SOLVED).exists?
+        Rails.logger.info("Upgrading storage for solved")
+        sql =<<SQL
+        INSERT INTO user_actions(action_type,
+                                 user_id,
+                                 target_topic_id,
+                                 target_post_id,
+                                 acting_user_id,
+                                 created_at,
+                                 updated_at)
+        SELECT :solved,
+               p.user_id,
+               p.topic_id,
+               p.id,
+               t.user_id,
+               pc.created_at,
+               pc.updated_at
+        FROM
+          post_custom_fields pc
+        JOIN
+          posts p ON p.id = pc.post_id
+        JOIN
+          topics t ON t.id = p.topic_id
+        WHERE
+          pc.name = 'is_accepted_answer' AND
+          pc.value = 'true' AND
+          p.user_id IS NOT NULL
+SQL
+
+        UserAction.exec_sql(sql, solved: UserAction::SOLVED)
+      end
+      $redis.set("solved_already_upgraded", "true")
+    end
+  end
+
   module ::DiscourseSolved
     class Engine < ::Rails::Engine
       engine_name PLUGIN_NAME
@@ -18,6 +56,7 @@ after_initialize do
 
   require_dependency "application_controller"
   class DiscourseSolved::AnswerController < ::ApplicationController
+
     def accept
 
       limit_accepts
@@ -31,6 +70,10 @@ after_initialize do
         if p2 = Post.find_by(id: accepted_id)
           p2.custom_fields["is_accepted_answer"] = nil
           p2.save!
+
+          if defined?(UserAction::SOLVED)
+            UserAction.where(action_type: UserAction::SOLVED, target_post_id: p2.id).destroy_all
+          end
         end
       end
 
@@ -39,6 +82,14 @@ after_initialize do
       post.topic.save!
       post.save!
 
+      if defined?(UserAction::SOLVED)
+        UserAction.log_action!(action_type: UserAction::SOLVED,
+                              user_id: post.user_id,
+                              acting_user_id: guardian.user.id,
+                              target_post_id: post.id,
+                              target_topic_id: post.topic_id)
+      end
+
       unless current_user.id == post.user_id
 
         Notification.create!(notification_type: Notification.types[:custom],
@@ -71,6 +122,14 @@ after_initialize do
       post.topic.save!
       post.save!
 
+      # TODO remove_action! does not allow for this type of interface
+      if defined? UserAction::SOLVED
+        UserAction.where(
+          action_type: UserAction::SOLVED,
+          target_post_id: post.id
+        ).destroy_all
+      end
+
       # yank notification
       notification = Notification.find_by(
          notification_type: Notification.types[:custom],
@@ -129,6 +188,27 @@ after_initialize do
     end
   end
 
+  if defined?(UserAction::SOLVED)
+    require_dependency 'user_summary'
+    class ::UserSummary
+      def solved_count
+        UserAction
+          .where(user: @user)
+          .where(action_type: UserAction::SOLVED)
+          .count
+      end
+    end
+
+    require_dependency 'user_summary_serializer'
+    class ::UserSummarySerializer
+      attributes :solved_count
+
+      def solved_count
+        object.solved_count
+      end
+    end
+  end
+
   require_dependency 'topic_view_serializer'
   class ::TopicViewSerializer
     attributes :accepted_answer