Update groups and add show ggroup

aula/Group/routes.py

@@ -1,13 +1,20 @@
 from flask import render_template, url_for, flash, redirect, request, Blueprint
 from flask_login import current_user, login_required
-from aula.models import select_users_by_id
+from aula.models import *
 import sys, datetime
 
 Group = Blueprint('Group', __name__)
 
 @Group.route("/groups", methods=['GET'])
 def index():
-    current_user.join_group(1000)
-    groups = current_user.get_groups()
+    groups = current_user.get_groups_joinable()
     return render_template('groups.html', groups=groups)
 
+@Group.route("/group/<int:group_id>", methods=['GET'])
+def show(group_id):
+    group = get_group(group_id)
+    if (group is not None):
+        return render_template('group_show.html', group=group)
+    else:
+        return "Der findes ingen gruppe med det id"
+