Cannot add choice filed with radio buttons in my model form using widget but only charfield.

post-form.html

{% extends "posts/post_base.html" %}

{% load bootstrap3 %}

{% block post_content %}

<h4>{% if not form.instance.pk %}

Create Post

{% else %}

Update Post

{% endif %}</h4>

<form method="POST" id="postForm">

{% csrf_token %}

{% bootstrap_form form %}

<input type="submit" value="Post" class="btn btn-primary btn-large">

</form>

{% endblock %}

models.py

from django.conf import settings

from django.urls import reverse

from django.db import models

import misaka

from django.contrib.auth import get_user_model

User = get_user_model()

class Teacher(models.Model):

    teacher_name = models.CharField(blank=False, max_length=100, unique=True, null=False)

    def __str__(self):

        return self.teacher_name

class Subject(models.Model):

    subject_name = models.CharField(blank=False, max_length=100, unique=True, null=False)

    def __str__(self):

        return self.subject_name

class Post(models.Model):

    user = models.ForeignKey(User, related_name="posts", on_delete=models.CASCADE)

    teacher = models.ForeignKey(Teacher, related_name="posts", on_delete=models.CASCADE, null = False, blank = False)

    subject = models.ForeignKey(Subject, related_name="posts", on_delete=models.CASCADE, null = False, blank = False)

    created_at = models.DateTimeField(auto_now=True)

    param1 = models.PositiveIntegerField(blank=False, null=False, verbose_name = "The objectives of this course were made clear to me by this teacher.")

    param2 = models.PositiveIntegerField(blank=False, null=False, verbose_name = "The teacher speaks, articulates and explains concepts clearly.")

    param3 = models.PositiveIntegerField(blank=False, null=False, verbose_name = "The teacher adheres to the timings schedule and enforces discipline in the class.")

    param4 = models.PositiveIntegerField(blank=False, null=False, verbose_name = "Interest generated by the teacher.")

    param5 = models.PositiveIntegerField(blank=False, null=False, verbose_name = "The lectures were well structured and focused on the topics.")

    param6 = models.PositiveIntegerField(blank=False, null=False, verbose_name = "Accessibility of the teacher in and out of the class.")

    param7 = models.PositiveIntegerField(blank=False, null=False, verbose_name = "The teacher has fair knowledge on the subject matter.")

    param8 = models.PositiveIntegerField(blank=False, null=False, verbose_name = "Effective use of teaching aids.")

    param9 = models.PositiveIntegerField(blank=False, null=False, verbose_name = "Time spend on lecturing by teacher for course coverage was sufficient and lesson plan was followed.")

    param10 = models.PositiveIntegerField(blank=False, null=False, verbose_name = "The teacher encourage students to raise pertinent questions and answer them.")

    average = models.FloatField()

    message = models.CharField(blank=False, max_length=100, null=True, verbose_name = "Anything else you want to say.")

    def __str__(self):

        return self.teacher.teacher_name

    def get_absolute_url(self):

        return reverse(

            "posts:single",

            kwargs={

                "username": self.user.username,

                "pk": self.pk

            }

        )

    def save(self, *args, **kwargs):

        self.average = (self.param1 + self.param2 + self.param3 + self.param4 + self.param5 + self.param6 + self.param7 +self. param8 + self.param9 + self.param10)/10

        super().save(*args, **kwargs)

    class Meta:

        ordering = ["-created_at"]

        unique_together = ["user", "teacher", "subject"]

forms.py

from django import forms

from posts import models

class PostForm(forms.ModelForm):

    class Meta:

        model = models.Post

        fields = ("teacher","subject","param1","param2","param3","param4",

                    "param5","param6","param7","param8","param9","param10","message")

        choices = (

                    (1,'Unsatisfactory'),

                    (2,'Satisfactory'),

                    (3,'Good'),

                    (4,'Very Good'),

                    (5,'Outstanding')

                    )

        widgets = {

                'param1':forms.TypedChoiceField(choices=choices, widget=forms.RadioSelect, coerce=int),

                'message': forms.Textarea(attrs={'cols': 80, 'rows': 20}),

        }

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