Autocomplete from GIS list of CRSs..

..using django-autocomplete-light, in both the admin area and the
end-user form

Closes #32

apps/map/forms.py

@@ -2,9 +2,11 @@ from django.urls import reverse
 from django import forms
 from django.utils.translation import ugettext as _
 from django.utils.safestring import mark_safe
+
 from crispy_forms.helper import FormHelper
 from crispy_forms.layout import Submit, Layout, HTML, Fieldset, Div
 from crispy_forms.bootstrap import Tab, TabHolder, PrependedText, FormActions
+from dal import autocomplete
 from leaflet.forms.widgets import LeafletWidget
 
 from .models import CaseStudy
@@ -68,6 +70,7 @@ class ShortCaseStudyForm(BaseCaseStudyForm):
             'community_voices'
         ]
 
+
 class LongCaseStudyForm(BaseCaseStudyForm):
     """Long version of the CaseStudy form."""
 
@@ -117,6 +120,9 @@ class LongCaseStudyForm(BaseCaseStudyForm):
             choices=POSITIVE_CASE_TYPE_CHOICES
         )
 
+        self.fields['project_owners'].required = True
+        self.fields['shareholders'].required = True
+
         self.helper.form_action = reverse('long-form')
         self.helper.layout = Layout(
             TabHolder(
@@ -269,3 +275,8 @@ class LongCaseStudyForm(BaseCaseStudyForm):
 
     class Meta(BaseCaseStudyForm.Meta):
         exclude = ('approved',)
+        widgets = {
+            'coordinate_reference_system': autocomplete.ModelSelect2(
+                url='srs-autocomplete'
+            )
+        }