implement addtask and addusers to a task features

taskmanager/routes.py

@@ -8,6 +8,21 @@ def index():
     tasks = Task.query.all()
     return render_template('index.html', tasks = tasks)
 
+@app.route('/addtask', methods=['GET','POST']) 
+def addtask():
+    if request.method == 'GET':
+        return render_template('addtask.html')
+    elif request.method == 'POST':
+        taskname = request.form['taskname']
+        taskdesc = request.form['taskdesc']
+        sqladdtask = Task(name = taskname, desc = taskdesc)
+        try:
+            db.session.add(sqladdtask)
+            db.session.commit()
+            return 'Task added'
+        except:
+            return 'Adding task failed'
+
 @app.route('/register', methods=['POST', 'GET'])
 def register():
     if request.method == 'GET':
@@ -29,19 +44,17 @@ def register():
 
 @app.route('/projects/<int:task_id>', methods=['GET','POST']) 
 def project(task_id:int):
+    users = gettaskusers(task_id)
     if request.method == 'GET':
         try:
             task = Task.query.get(task_id)
         except:
             return 'Task not found, bad URL'
-        try:
-            userid = TaskUser.query.filter_by(taskid = task_id).first().userid
-            users = User.query.get(userid).username
-        except:
-            users = "No users added to this task"
         return render_template("project.html", task = task, users = users)
     elif request.method == 'POST':
         username = request.form['username']
+        if username in users:
+            return 'User already added to task'
         try:
             userid = User.query.filter_by(username = username).first().id
         except: