Entrance locations explanations

core/forms.py

@@ -182,8 +182,12 @@ class EntranceForm(ModelForm):
         required=False,
         widget=forms.TextInput(attrs={"size": "50"}), label="Other station: Survex station id, e.g. 1623.2023-xx-01.33"
     )
-    northing = forms.CharField(required=False)
-    easting = forms.CharField(required=False)
+    northing = forms.CharField(
+        required=False, widget=forms.TextInput(attrs={"size": "10"}), label="Northing (UTM) - from survex data"
+        )
+    easting = forms.CharField(
+        required=False, widget=forms.TextInput(attrs={"size": "10"}), label="Easting (UTM) - from survex data"
+        )
     lat_wgs84 = forms.CharField(
         required=False, widget=forms.TextInput(attrs={"size": "10"}), label="Latitude (WSG84) - if no other location"
         )

core/views/caves.py

@@ -477,7 +477,8 @@ def edit_entrance(request, path="", caveslug=None, entslug=None):
             cave_file = cave.file_output()
             write_and_commit([entrance_file, cave_file], f"Online edit of entrance {entrance.slug}")
             return HttpResponseRedirect("/" + cave.url)
-    else:
+            
+    else: # GET the page, not POST, or if either of the forms were invalid when POSTed
         if entrance:
             # re-read entrance data from file.
             filename = str(entrance.slug +".html")

templates/editentrance.html

@@ -5,10 +5,18 @@
 {% include 'html_editor_scripts_css.html' %}
 {% endblock %}
 {% block content %}
-<h1>Edit Entrance - at cave {{cave.official_name|safe}} - {{cave.kataster_number}}</h1>
+<h1>Edit Entrance at cave {{cave.official_name|safe}} - {{cave.unofficial_number}} - {{cave.kataster_number}}</h1>
 {% include 'html_editor_pop_ups.html' %}
 <h2>{{message}}</h2>
 <form action="" method="post">{% csrf_token %}
+<p> When you first create a new entrance, you will probably not have any cave survey data for the entrance location, 
+<ul>
+<li>
+so the Easting/Northing fields will be blank.
+<li>Put in the location of your new entrance in the WGS84 latitude and longitude fields.
+<li>Read the <a href="/handbook/survey/coord2.html#summary">brief explanation</a> of location data in the handbook.
+</ul>
+
     {% if entlettereditable %}
       <table>{{ entletter }}</table>
     {% else %}