Add asbestos exposure form

Author: miriam-z

lung_cancer_screening/questions/forms/asbestos_exposure_form.py

@@ -0,0 +1,24 @@
+from django import forms
+from ...nhsuk_forms.choice_field import ChoiceField
+from ..models.response_set import ResponseSet, AsbestosExposureValues
+
+
+class AsbestosExposureForm(forms.ModelForm):
+    def __init__(self, *args, **kwargs):
+        self.participant = kwargs.pop('participant')
+        super().__init__(*args, **kwargs)
+        self.instance.participant = self.participant
+
+        self.fields["asbestos_exposure"] = ChoiceField(
+            choices=AsbestosExposureValues.choices,
+            widget=forms.RadioSelect,
+            label="Have you ever worked in a job where you might have been exposed to asbestos?",
+            label_classes="nhsuk-fieldset__legend--m",
+            error_messages={
+                'required': 'Select if you have been exposed to asbestos.'
+            }
+        )
+
+    class Meta:
+        model = ResponseSet
+        fields = ['asbestos_exposure']

lung_cancer_screening/questions/jinja2/asbestos_exposure.jinja

@@ -0,0 +1,63 @@
+{% extends 'layout.jinja' %}
+{% from 'nhsuk/components/button/macro.jinja' import button %}
+{% from 'nhsuk/components/back-link/macro.jinja' import backLink %}
+{% from 'nhsuk/components/details/macro.jinja' import details %}
+
+{% block beforeContent %}
+  {{
+    backLink({
+      "href": url("questions:ethnicity"),
+      "text": "Back"
+    })
+  }}
+{% endblock beforeContent %}
+
+{% block page_content %}
+  <div class="nhsuk-grid-row">
+    <div class="nhsuk-grid-column-two-thirds">
+      <h1 class="nhsuk-heading-l">Tell us if you might have been exposed to asbestos at work</h1>
+
+      <p>You may have been exposed to asbestos if you worked in an industry such as building or construction, particularly from the 1950s to the 1990s.</p>
+
+      <p>You could be exposed to asbestos today if your job involves working in certain roles in old buildings.</p>
+
+      <p>Examples include:</p>
+      <ul>
+        <li>heating and ventilation engineers</li>
+        <li>demolition workers</li>
+        <li>plumbers</li>
+        <li>construction workers</li>
+        <li>electricians</li>
+      </ul>
+
+      <p>You may have come into contact with asbestos from existing asbestos-containing materials in buildings and products. If they are intact or undamaged, they pose very little risk.</p>
+
+      {{
+        details({
+          "text": "What is asbestos?",
+          "HTML": "
+            <p>Asbestos was used in a number of building materials and products. For example:</p>
+            <ul>
+              <li>boilers and pipes</li>
+              <li>car brakes</li>
+              <li>cement for roofing sheets</li>
+              <li>floor tiles</li>
+              <li>insulating board to protect buildings and ships against fire</li>
+            </ul>
+            <p>If you worked in an industry such as building or construction you are more likely to have come into contact with damaged asbestos materials and products.</p>
+          "
+        })
+      }}
+
+      <form action="{{ request.path }}" method="POST">
+        {{ csrf_input }}
+
+        {{ form }}
+
+        {{ button({
+          "text": "Continue"
+        }) }}
+      </form>
+    </div>
+  </div>
+{% endblock %}

lung_cancer_screening/questions/jinja2/responses.jinja

@@ -5,7 +5,7 @@
 {% block beforeContent %}
   {{
     backLink({
-      "href": url("questions:ethnicity"),
+      "href": url("questions:asbestos_exposure"),
       "text": "Back"
     })
   }}
@@ -23,6 +23,7 @@
         <li>What was your sex at birth? {{ response_set.get_sex_at_birth_display() }}</li>
         <li>Which of these best describes you? {{ response_set.get_gender_display() }}</li>
         <li>What is your ethnic background? {{ response_set.get_ethnicity_display() }}</li>
+        <li>Have you ever worked in a job where you might have been exposed to asbestos? {{ response_set.get_asbestos_exposure_display() }}</li>
       </ul>
 
       <form action="{{ request.path }}" method="post">

lung_cancer_screening/questions/migrations/0016_responseset_asbestos_exposure.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.8 on 2025-11-12 08:26
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('questions', '0015_responseset_ethnicity_alter_responseset_gender'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='responseset',
+            name='asbestos_exposure',
+            field=models.CharField(blank=True, choices=[('Y', 'Yes'), ('N', 'No')], max_length=1, null=True),
+        ),
+    ]

lung_cancer_screening/questions/models/response_set.py

@@ -33,6 +33,10 @@ class EthnicityValues(models.TextChoices):
     OTHER = "O", "Other ethnic group"
     PREFER_NOT_TO_SAY = "N", "I'd prefer not to say"
 
+class AsbestosExposureValues(models.TextChoices):
+    YES = "Y", "Yes"
+    NO = "N", "No"
+
 class ResponseSet(BaseModel):
     participant = models.ForeignKey(Participant, on_delete=models.CASCADE)
 
@@ -95,6 +99,13 @@ class ResponseSet(BaseModel):
         blank=True
     )
 
+    asbestos_exposure = models.CharField(
+        max_length=1,
+        choices=AsbestosExposureValues.choices,
+        null=True,
+        blank=True
+    )
+
     submitted_at = models.DateTimeField(null=True, blank=True)
 
     class Meta:

lung_cancer_screening/questions/tests/unit/forms/test_asbestos_exposure_form.py

@@ -0,0 +1,62 @@
+from django.test import TestCase
+
+from ....models.response_set import AsbestosExposureValues
+from ....models.participant import Participant
+from ....forms.asbestos_exposure_form import AsbestosExposureForm
+
+
+class TestAsbestosExposureForm(TestCase):
+    def setUp(self):
+        self.participant = Participant.objects.create(unique_id="1234567890")
+
+    def test_is_valid_with_yes(self):
+        form = AsbestosExposureForm(
+            participant=self.participant,
+            data={
+                "asbestos_exposure": AsbestosExposureValues.YES
+            }
+        )
+        self.assertTrue(form.is_valid())
+        self.assertEqual(
+            form.cleaned_data["asbestos_exposure"],
+            AsbestosExposureValues.YES.value
+        )
+
+    def test_is_valid_with_no(self):
+        form = AsbestosExposureForm(
+            participant=self.participant,
+            data={
+                "asbestos_exposure": AsbestosExposureValues.NO
+            }
+        )
+        self.assertTrue(form.is_valid())
+        self.assertEqual(
+            form.cleaned_data["asbestos_exposure"],
+            AsbestosExposureValues.NO.value
+        )
+
+    def test_is_invalid_with_an_invalid_value(self):
+        form = AsbestosExposureForm(
+            participant=self.participant,
+            data={
+                "asbestos_exposure": "invalid"
+            }
+        )
+        self.assertFalse(form.is_valid())
+        self.assertEqual(
+            form.errors["asbestos_exposure"],
+            ["Select a valid choice. invalid is not one of the available choices."]
+        )
+
+    def test_is_invalid_when_no_option_is_selected(self):
+        form = AsbestosExposureForm(
+            participant=self.participant,
+            data={
+                "asbestos_exposure": None
+            }
+        )
+        self.assertFalse(form.is_valid())
+        self.assertEqual(
+            form.errors["asbestos_exposure"],
+            ["Select if you have been exposed to asbestos."]
+        )

lung_cancer_screening/questions/tests/unit/views/test_asbestos_exposure.py

@@ -0,0 +1,88 @@
+from django.test import TestCase
+from django.urls import reverse
+
+from lung_cancer_screening.questions.models.participant import Participant
+from lung_cancer_screening.questions.models.response_set import AsbestosExposureValues
+
+
+class TestAsbestosExposure(TestCase):
+    def setUp(self):
+        self.participant = Participant.objects.create(unique_id="12345")
+        self.participant.responseset_set.create()
+        self.valid_params = {"asbestos_exposure": AsbestosExposureValues.YES}
+
+        session = self.client.session
+        session['participant_id'] = self.participant.unique_id
+        session.save()
+
+    def test_get_redirects_if_the_participant_does_not_exist(self):
+        session = self.client.session
+        session['participant_id'] = "somebody none existant participant"
+        session.save()
+
+        response = self.client.get(
+            reverse("questions:asbestos_exposure")
+        )
+
+        self.assertRedirects(response, reverse("questions:start"))
+
+    def test_get_responds_successfully(self):
+        response = self.client.get(reverse("questions:asbestos_exposure"))
+        self.assertEqual(response.status_code, 200)
+
+    def test_get_contains_the_correct_form_fields(self):
+        response = self.client.get(reverse("questions:asbestos_exposure"))
+        self.assertContains(response, "Have you ever worked in a job where you might have been exposed to asbestos?")
+
+    def test_post_redirects_if_the_participant_does_not_exist(self):
+        session = self.client.session
+        session['participant_id'] = "somebody none existant participant"
+        session.save()
+
+        response = self.client.post(
+            reverse("questions:asbestos_exposure"),
+            self.valid_params
+        )
+
+        self.assertRedirects(response, reverse("questions:start"))
+
+    def test_post_stores_a_valid_response_for_the_participant(self):
+        self.client.post(
+            reverse("questions:asbestos_exposure"),
+            self.valid_params
+        )
+
+        response_set = self.participant.responseset_set.first()
+        self.assertEqual(
+            response_set.asbestos_exposure,
+            self.valid_params["asbestos_exposure"]
+        )
+        self.assertEqual(response_set.participant, self.participant)
+
+    def test_post_redirects_to_the_next_page(self):
+        response = self.client.post(
+            reverse("questions:asbestos_exposure"),
+            self.valid_params
+        )
+
+        # Assuming it redirects to the next question page - adjust as needed
+        self.assertEqual(response.status_code, 302)
+
+    def test_post_responds_with_422_if_the_response_fails_to_create(self):
+        response = self.client.post(
+            reverse("questions:asbestos_exposure"),
+            {"asbestos_exposure": "something not in list"}
+        )
+
+        self.assertEqual(response.status_code, 422)
+
+    def test_post_does_not_update_response_set_on_invalid_data(self):
+        self.client.post(
+            reverse("questions:asbestos_exposure"),
+            {"asbestos_exposure": "invalid"}
+        )
+
+        self.assertEqual(
+            self.participant.responseset_set.first().asbestos_exposure,
+            None
+        )

lung_cancer_screening/questions/tests/unit/views/test_ethnicity.py

@@ -70,13 +70,13 @@ def test_post_sets_the_participant_id_in_session(self):
 
         self.assertEqual(self.client.session["participant_id"], "12345")
 
-    def test_post_redirects_to_the_responses_path(self):
+    def test_post_redirects_to_the_asbestos_exposure_path(self):
         response = self.client.post(
             reverse("questions:ethnicity"),
             self.valid_params
         )
 
-        self.assertRedirects(response, reverse("questions:responses"))
+        self.assertRedirects(response, reverse("questions:asbestos_exposure"))
 
     def test_post_responds_with_422_if_the_date_response_fails_to_create(self):
         response = self.client.post(

lung_cancer_screening/questions/urls.py

@@ -27,6 +27,7 @@
 from .views.sex_at_birth import sex_at_birth
 from .views.gender import gender
 from .views.ethnicity import ethnicity
+from .views.asbestos_exposure import asbestos_exposure
 
 urlpatterns = [
     path('start', start, name='start'),
@@ -37,6 +38,7 @@
     path('sex-at-birth', sex_at_birth, name='sex_at_birth'),
     path('gender', gender, name='gender'),
     path('ethnicity', ethnicity, name='ethnicity'),
+    path('asbestos-exposure', asbestos_exposure, name='asbestos_exposure'),
     path('responses', responses, name='responses'),
     path('age-range-exit', age_range_exit, name='age_range_exit'),
     path('non-smoker-exit', non_smoker_exit, name='non_smoker_exit'),

lung_cancer_screening/questions/views/asbestos_exposure.py

@@ -0,0 +1,35 @@
+from django.shortcuts import render, redirect
+from django.urls import reverse
+from django.views.decorators.http import require_http_methods
+
+from .decorators.participant_decorators import require_participant
+from ..forms.asbestos_exposure_form import AsbestosExposureForm
+
+
+@require_http_methods(["GET", "POST"])
+@require_participant
+def asbestos_exposure(request):
+    if request.method == "POST":
+        form = AsbestosExposureForm(
+            participant=request.participant,
+            data=request.POST
+        )
+
+        if form.is_valid():
+            response_set = request.participant.responseset_set.last()
+            response_set.asbestos_exposure = form.cleaned_data["asbestos_exposure"]
+            response_set.save()
+            return redirect(reverse("questions:responses"))
+        else:
+            return render(
+                request,
+                "asbestos_exposure.jinja",
+                {"form": form},
+                status=422
+            )
+
+    return render(
+        request,
+        "asbestos_exposure.jinja",
+        {"form": AsbestosExposureForm(participant=request.participant)}
+    )