Set header and suffix based on previous answer

app/models/form/question.rb

@@ -82,18 +82,6 @@ class Form::Question
     case_log[id].present?
   end
 
-  def prefix_text(case_log = nil)
-    return prefix.to_s unless prefix && case_log.respond_to?(prefix)
-
-    case_log.public_send(prefix).to_s
-  end
-
-  def suffix_text(case_log = nil)
-    return suffix.to_s unless suffix && case_log.respond_to?(suffix)
-
-    case_log.public_send(suffix).to_s
-  end
-
 private
 
   def checkbox_answer_label(case_log)

app/views/form/_numeric_question.html.erb

@@ -6,7 +6,7 @@
     hint: { text: question.hint_text&.html_safe },
     min: question.min, max: question.max, step: question.step,
     width: question.width, :readonly => question.read_only?,
-    prefix_text: question.prefix_text(@case_log),
-    suffix_text: question.suffix_text(@case_log),
+    prefix_text: question.prefix.to_s,
+    suffix_text: question.suffix.to_s,
    **stimulus_html_attributes(question)
 %>

config/forms/2021_2022.json

@@ -1824,7 +1824,8 @@
                 }
               }
             },
-            "net_income": {
+            "weekly_net_income": {
+              "depends_on": { "net_income_known": "Yes – the household has a weekly income" },
               "header": "",
               "description": "",
               "questions": {
@@ -1836,7 +1837,59 @@
                   "min": 0,
                   "step": "1",
                   "prefix": "£",
-                  "suffix": "incfreq"
+                  "suffix": "every week"
+                }
+              },
+              "soft_validations": {
+                "override_net_income_validation": {
+                  "check_answer_label": "Net income confirmed?",
+                  "type": "validation_override",
+                  "answer_options": {
+                    "override_net_income_validation": "Yes"
+                  }
+                }
+              }
+            },
+            "monthly_net_income": {
+              "depends_on": { "net_income_known": "Yes – the household has a monthly income" },
+              "header": "",
+              "description": "",
+              "questions": {
+                "earnings": {
+                  "check_answer_label": "Income",
+                  "header": "How much income does the household have in total every month?",
+                  "hint_text": "",
+                  "type": "numeric",
+                  "min": 0,
+                  "step": "1",
+                  "prefix": "£",
+                  "suffix": "every month"
+                }
+              },
+              "soft_validations": {
+                "override_net_income_validation": {
+                  "check_answer_label": "Net income confirmed?",
+                  "type": "validation_override",
+                  "answer_options": {
+                    "override_net_income_validation": "Yes"
+                  }
+                }
+              }
+            },
+            "yearly_net_income": {
+              "depends_on": { "net_income_known": "Yes – the household has a yearly income" },
+              "header": "",
+              "description": "",
+              "questions": {
+                "earnings": {
+                  "check_answer_label": "Income",
+                  "header": "How much income does the household have in total every year?",
+                  "hint_text": "",
+                  "type": "numeric",
+                  "min": 0,
+                  "step": "1",
+                  "prefix": "£",
+                  "suffix": "every year"
                 }
               },
               "soft_validations": {

spec/views/form/page_view_spec.rb

@@ -19,6 +19,14 @@ RSpec.describe "form/page" do
     end
   end
 
+  before do
+    assign(:case_log, case_log)
+    assign(:page, page)
+    assign(:subsection, subsection)
+    assign_attributes(question, attribs)
+    render
+  end
+
   after do
     # Revert any changes we've made to avoid affecting other specs as the form,
     # subsection, page, question objects being acted on are in memory
@@ -26,36 +34,17 @@ RSpec.describe "form/page" do
   end
 
   context "given a numeric question with prefix and suffix" do
-    let(:attribs) { { type: "numeric", prefix: "£", suffix: "incfreq" } }
-    let(:net_income_known) { "Yes – the household has a weekly income" }
-    let(:expected_suffix) { "Weekly" }
-
-    before do
-      case_log.update!(net_income_known: net_income_known)
-      assign(:case_log, case_log)
-      assign(:page, page)
-      assign(:subsection, subsection)
-      assign_attributes(question, attribs)
-      render
-    end
+    let(:attribs) { { type: "numeric", prefix: "£", suffix: "every week" } }
 
     it "renders prefix and suffix text" do
       expect(rendered).to match(/govuk-input__prefix/)
       expect(rendered).to match(/£/)
       expect(rendered).to match(/govuk-input__suffix/)
-      expect(rendered).to match(expected_suffix)
+      expect(rendered).to match("every week")
     end
   end
 
   context "given a question with extra guidance" do
-    before do
-      assign(:case_log, case_log)
-      assign(:page, page)
-      assign(:subsection, subsection)
-      assign_attributes(question, attribs)
-      render
-    end
-
     let(:expected_guidance) { /What counts as income?/ }
 
     context "with radio type" do