flask wtforms triggering a python function with post - python-3.x

Question

I don't want to use javascript as its probably just a one-off usecase. Here's my code and the problem statement follows.
# Form class
class ManageContainers(FlaskForm):
stop_container = SubmitField('stop')
# HTML Render
{% for i in containers %}
<tbody>
<tr>
<th scope="row">{{ i.short_id }}</th>
<td>{{ i.name }}</td>
<td>{{ i.image.tags }}</td>
<td>{{ i.ports }}</td>
<td>
<form action="#" method="post">
{{ form.stop_container() }}
</form>
</td>
</tr>
</tbody>
{% endfor %}
# Actual app route
#app.route('/list-containers', methods=['POST','GET'])
def index():
containers_list = client.containers.list(all=False)
form = ManageContainers()
if form.is_submitted():
print("stop the container")
delete_container(HOW_TO_GET_THIS?)
return redirect(url_for('index'))
return render_template('index.html', containers=containers_list, form=form)
def delete_container(container_id):
container = client.containers.get(container_id)
container.stop()
container.remove()
I am using docker sdk for python and basically trying to stop / start containers. I am stuck where I want to use that button that says "stop" which will delete the container.
Important - It is actually calling a function like this because I can see "stop the container" in my console. But I don't know how to pass the ID (i.id) of the container while the function is getting called.
Here's a screenshot of what the page actually looks like to save you sometime.
SCREENSHOT

Answer 1

Since you are not taking any user input for any fields, I don't think, it's related to WTForms.
You can try the below steps:
Create a route for stopping the container:
#app.route('/stop-container/<id>', methods=['POST'])
def stop_container(id):
delete_container(id)
return redirect(url_for('index'))
Change your form to:
<form action={{ url_for('stop_container', id=i.short_id) }} method='post'>
{{ form.stop_container() }}
</form>