Flask And JavaScript Confirm Before Deleting

I have a problem with flask app published pythonanywhere. This is a dashboard and if I click the title of the posting, it is supposed to show details of the posting. I want to add

Solution 1:

An alternative approach for a similar task:

I implemented a confirmation step before deleting post through modal by using only HTML and jinja.

{% block body %}
  <h1>Dashboard <small> Welcome {{session.username}} </small></h1>
  <a class="btn btn-success" href="/add_article">Add Article</a>
  <hr>
  <table class="table table-striped">
    <tr>
      <th>ID</th>
      <th>Title</th>
      <th>Author</th>
      <th>Date</th>
      <th></th>
      <th></th>
    </tr>
    {% for article in articles %}
      <tr>
        <td>{{article.id}}</td>
        <td>{{article.title}}</td>
        <td>{{article.author}}</td>
        <td>{{article.create_date}}</td>
        <td> <a href="edit_article/{{article.id}}" class="btn btn-default pull-right"> Edit </a></td>
        <td>

          <!-- Button trigger modal -->
          <button type="button" class="btn btn-danger" data-toggle="modal" data-target="#exampleModalCenter{{article.id}}">
            Delete
          </button>
          <!-- Modal -->
          <div class="modal fade" id="exampleModalCenter{{article.id}}">
            <div class="modal-dialog modal-dialog-centered" role="document">
              <div class="modal-content">
                <div class="modal-header">
                  <h5 class="modal-title" id="exampleModalLongTitle{{article.id}}">Deleting Post Permanently</h5>
                  <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                    <span aria-hidden="true">&times;</span>
                  </button>
                </div>
                <div class="modal-body">
                  <h3>{{article.title}}??</h3>
                  <p>Are you sure?</p>
                </div>
                <div class="modal-footer">
                  <button type="button" class="btn btn-secondary" data-dismiss="modal">Cancel</button>

                  <form action="{{url_for('delete_article', id=article.id)}}" method="post">
                    <input type="submit" value="Delete" class="btn btn-danger">
                  </form>
                </div>
              </div>
            </div>
          </div>


        </td>
      </tr>
    {% endfor %}
  </table>
{% endblock %}

Solution 2:

Including a js file in Flask works differently:

`<script type="text/javascript" src="{{ url_for('static', filename='js/confirm.js') }}"></script>`

With this you should be able to load the JS