Display name rather than id

src/registrar/forms/domain.py

@@ -191,6 +191,10 @@ class DomainSuborganizationForm(forms.ModelForm):
 
         # Use the combobox rather than the regular select widget
         self.fields["sub_organization"].widget.template_name = "django/forms/widgets/combobox.html"
+    
+    def get_suborganization_name(self):
+        """Returns the suborganization name for the readonly view"""
+        return self.instance.sub_organization if self.instance else None
 
 
 class BaseNameserverFormset(forms.BaseFormSet):

src/registrar/templates/domain_suborganization.html

@@ -23,7 +23,7 @@
         </form>
     {% else %}
         {% with description="The suborganization for this domain can only be updated by a organization administrator."%}
-            {% include "includes/input_read_only.html" with field=form.sub_organization label_description=description%}
+            {% include "includes/input_read_only.html" with field=form.sub_organization value=instance.get_suborganization_name label_description=description%}
         {% endwith %}
     {% endif %}
 

src/registrar/templates/includes/input_read_only.html

@@ -7,4 +7,8 @@ Template include for read-only form fields
 {% if label_description %}
     <p class="usa-hint margin-top-0 margin-bottom-05">{{ label_description }}</p>
 {% endif %}
-<p class="read-only-value">{{ field.value }}</p>
+{% comment %} 
+This allows us to customize the displayed value. 
+For instance, Select fields will display the id by default. 
+{% endcomment %}
+<p class="read-only-value">{{ value|default:field.value }}</p>