Add functionality to modify Django day shift information

In order to implement the function to edit while checking the shift table, I would like to be able to correct the shift of the day by clicking the working hours of each day.

First of all, I will create an update screen.

I created it using the easy-to-create UpdateView ...

schedule/views.py

class ScheduleUpdate(UpdateView):
    template_name = 'schedule/update.html'
    model = Schedule
    fields = ('user', 'date', 'shift_name_1', 'shisetsu_name_1', 'shift_name_2', 'shisetsu_name_2', 'shift_name_3', 'shisetsu_name_3','shift_name_4', 'shisetsu_name_4', 'day_total_worktime')
    success_url = reverse_lazy('schedule:homeschedule')

html/schedule.py

{% extends 'schedule/base.html' %}

{% block header %}
{% endblock header %}

{% block content %}
<form action="" method="POST">{% csrf_token %}
    <P >Employee name:　{{ from.object.user }}</P>
    <p>date: {{ form.date }}</p>
    <p>Shift 1:{{ form.shift_name_1 }}</p> 
    <p>Facility name 1:{{ form.shisetsu_name_1 }}</p>  
    <p>Shift 2:{{ form.shift_name_2 }}</p> 
    <p>Facility name 2:{{ form.shisetsu_name_2 }}</p>  
    <p>Shift 3:{{ form.shift_name_3 }}</p> 
    <p>Facility name 3:{{ form.shisetsu_name_3 }}</p>  
    <p>Shift 4:{{ form.shift_name_4 }}</p> 
    <p>Facility name 4:{{ form.shisetsu_name_4 }}</p>
    <p>Total working hours:{{ form.day_total_worktime }}</p>
    <input class="btn btn-primary" type="submit" value="update">
    <a href="{% url 'schedule:homeschedule' %}" class="btn-secondary   btn active">Return</a>
</form>
{% endblock content %}

I made it this way, but I had a problem ...

I displayed the user name and date as information on the edit screen, but I don't want to edit them ... At times, I don't know how to do it ... What is hard here ...

After this, I felt that it would be difficult to create a function to acquire and display the time from the shift name. I stumbled before that ...

Click here for the current screen

I want to list the name and name instead of the user name, but I may have to hand it over again in a dictionary type, but I do not know how to hand it over ...

How many hours will I fight from here ... (laughs)