Implement exercise statistics for specific (external) users

app/views/external_users/statistics.html.slim

@@ -1,2 +1,18 @@
-h1 = @user
-H2 = 'Hallo'
+h1 = t('.title')
+
+- exercises = Exercise.where(:id => @user.submissions.group(:exercise_id).select(:exercise_id).distinct())
+
+.table-responsive
+  table.table
+    thead
+      tr
+        - ['.exercise', '.score', '.runs', '.worktime'].each do |title|
+          th.header = t(title)
+    tbody
+      - exercises.each do |exercise|
+        - submissions = @user.submissions.where(:exercise_id => exercise.id, :cause => ['submit', 'run'])
+        tr
+          td = link_to exercise.title, exercise
+          td = submissions.maximum(:score) or 0
+          td = submissions.count
+          td = exercise.average_working_time_for(@user.id) or 0

config/locales/de.yml

@@ -259,6 +259,13 @@ de:
         time: Zeit
         cause: Grund
         score: Punktzahl
+  external_users:
+    statistics:
+      title: Statistiken für Externe Benutzer
+      exercise: Übung
+      score: Bewertung
+      runs: Versuche
+      worktime: Arbeitszeit
   files:
     roles:
       main_file: Hauptdatei

config/locales/en.yml

@@ -259,6 +259,13 @@ en:
         time: Time
         cause: Cause
         score: Score
+  external_users:
+    statistics:
+      title: External User Statistics
+      exercise: Exercise
+      score: Score
+      runs: Runs
+      worktime: Working Time
   files:
     roles:
       main_file: Main File