Mostly changes to admin_topic_show

models/database.py

@@ -148,3 +148,8 @@ class Statement(db.Model):
         self.execution_time = datetime.now()
         return True
     
+    def undo(self):
+        if not self.executed:
+            return False
+        self.executed = False
+        self.execution_time = datetime(1970, 1, 1)

modules/admin.py

@@ -189,7 +189,7 @@ def topic_edit():
         if form.validate_on_submit():
             form.populate_obj(topic)
             db.session.commit()
-            return redirect(url_for(".index"))
+            return redirect(url_for(".topic_show", id=topic.id))
         else:
             return render_layout("admin_topic_edit.html", form=form, id=topic_id)
     else:
@@ -256,3 +256,11 @@ def statement_delete():
         return redirect(url_for(".topic_show", id=topic_id))
     return redirect(url_for(".index"))
 
+@admin.route("/statement/undo")
+@login_required
+@admin_permission.require()
+def statement_undo():
+    statement = Statement.query.filter_by(executed=True).order_by(db.desc(Statement.execution_time)).first()
+    statement.undo()
+    db.session.commit()
+    return redirect(url_for(".topic_show", id=statement.topic.id))

templates/admin_topic_show.html

@@ -35,5 +35,12 @@
             </tbody>
         </table>
     </div>
-    {{ render_form(form, action_url=url_for(".statement_new"), action_text="Add", title="Add Statement", class_="mdl-card mdl-shadow--2dp mdl-cell mdl-cell--3-col mdl-cell-3-col-tablet mdl-cell--4-col-phone") }}
+    <div class="mdl-cell mdl-cell--3-col mdl-cell--3-col-tablet mdl-cell--4-col-phone mdl-grid mdl-grid--no-spacing">
+        {{ render_form(form, action_url=url_for(".statement_new"), action_text="Add", title="Add Statement", class_="mdl-card mdl-shadow--2dp mdl-cell mdl-cell--12-col mdl-cell--8-col-tablet mdl-cell--4-col-phone") }}
+        <div class="mdl-cell mdl-card mdl-shadow--2dp mdl-cell--12-col mdl-cell--8-col-tablet mdl-cell--4-col-phone">
+            <ul class="mdl-menu">
+                <li class="mdl-menu__item"><a class="mdl-navigation__link" href="{{ url_for(".statement_undo") }}"><i class="material-icons" role="presentation">undo</i>Undo</a></li>
+            </ul>
+        </div>
+    </div>
 {% endblock %}