enhancing list of wallets on cave description page

core/models/caves.py

@@ -62,6 +62,20 @@ class CaveAndEntrance(models.Model):
 # class CaveSlug(models.Model):
 # moved to models/logbooks.py to avoid cyclic import problem. No I don't know why either.
 
+def get_cave_leniently(caveid):
+    try:
+        c = getCave(caveid)
+        if c:
+            return c
+    except:
+        # print(f"get_cave_leniently FAIL {caveid}")
+        try:
+            c = getCave("1623-"+caveid)
+            if c:
+                return c 
+        except:
+            return None
+
 class Cave(TroggleModel):
     # (far) too much here perhaps,
     areacode = models.CharField(max_length=4, blank=True, null=True) # could use models.IntegerChoices

core/models/wallets.py

@@ -11,7 +11,7 @@ from django.db import models
 from django.urls import reverse
 
 from troggle.core.models.troggle import DataIssue
-from troggle.core.views.caves import get_cave_leniently
+from troggle.core.models.caves import get_cave_leniently
 
 # from troggle.core.models.survex import SurvexBlock
 # from troggle.core.models.troggle import DataIssue # circular import. Hmm
@@ -133,6 +133,9 @@ class Wallet(models.Model):
         # we do not use URL_ROOT any more.    
         return reverse("singlewallet", kwargs={"path": re.sub("#", "%23", self.walletname)})
 
+    def get_url(self):
+        return f"/walletedit/{self.walletname}".replace('#', ':')
+        
     def get_json(self):
         """Read the JSON file for the wallet and do stuff
         Do it every time it is queried, to be sure the result is fresh.. well, no.
@@ -150,7 +153,7 @@ class Wallet(models.Model):
         fp = Path(self.fpath)
         wname = fp.name
         wyear = fp.parent.name
-        wurl = f"/walletedit/{self.walletname}".replace('#', ':')
+        wurl = self.get_url()
 
         if len(wyear) != 4 or len(wname) !=6: 
             # no contents.json for old-style wallets

core/views/caves.py

@@ -15,8 +15,9 @@ from django.urls import NoReverseMatch, reverse
 
 import troggle.settings as settings
 from troggle.core.forms import CaveAndEntranceFormSet, CaveForm, EntranceForm, EntranceLetterForm
-from troggle.core.models.caves import Cave, CaveAndEntrance, Entrance, GetCaveLookup 
+from troggle.core.models.caves import Cave, CaveAndEntrance, Entrance, GetCaveLookup, get_cave_leniently
 from troggle.core.models.logbooks import CaveSlug, QM
+from troggle.core.models.wallets import Wallet
 from troggle.core.utils import write_and_commit
 from troggle.core.views import expo
 from troggle.settings import CAVEDESCRIPTIONS, ENTRANCEDESCRIPTIONS
@@ -40,19 +41,7 @@ todo = """
   https://zerotobyte.com/how-to-use-django-select-related-and-prefetch-related/
 """
 
-def get_cave_leniently(caveid):
-    try:
-        c = getCave(caveid)
-        if c:
-            return c
-    except:
-        # print(f"get_cave_leniently FAIL {caveid}")
-        try:
-            c = getCave("1623-"+caveid)
-            if c:
-                return c 
-        except:
-            return None
+
     
 
 def getCaves(cave_id):
@@ -294,6 +283,8 @@ def rendercave(request, cave, slug, cave_id=""):
         # see design docum in troggle/templates/cave.html
         # see rendercave() in troggle/core/views/caves.py
         templatefile = "cave.html"
+        
+        wallets = Wallet.objects.filter(caves=cave)
 
         if not cave_id:
             cave_id = slug  # cave.unofficial_number
@@ -305,6 +296,7 @@ def rendercave(request, cave, slug, cave_id=""):
             "cave_id": cave_id,
             "svxstem": str(svxstem),
             "svx3d": svx3d,
+            "wallets": wallets,
         }
 
         # Do not catch any exceptions here: propagate up to caller

templates/cave.html

@@ -121,8 +121,15 @@ Nope, it is not useful, removing it... Philip S.
     <a href="{% url 'caveQMs' cave_id|safe %}">QM page for {{ cave_id|safe }}</a> 
 {% endif %}
 
-  <h2>Scanned survey notes</h2>
-  <a href="{% url "cavewallets" cave_id %}">{{ cave_id|safe }}</a> (if any)
+  {% if wallets %}
+    <h2>Wallets: scanned survey notes</h2>
+
+    There are <a href="{% url "cavewallets" cave_id %}">{{wallets|length}} wallets</a>   with data for this cave:<br />
+    {% for w in wallets %}
+
+     <a href="{{w.get_url}}">{{w.walletname}}</a> 
+    {% endfor %}
+  {% endif %}
 {% endif %}
  
 {% if cave.notes %}

templates/cavewallets.html

@@ -20,11 +20,16 @@ traced to produce Tunnel or Therion drawings and eventually the final complete c
 {% for otherexpedition in expeditions %}
   | <a <a href="/wallets/year/{{ otherexpedition.year }}">{{otherexpedition.year}}</a>
 {% endfor %}</ul></ul>
+
 {% include 'wallet_table.html' %}
+
 <p>Note that names in italics are copied from the related survex file block name.
 <br />
 <p>Total underground survey length: {{length_ug|floatformat:"1g"}} m<br />
-Note that this is for <em>all the wallets</em> listed above, which includes those which may not be directly relevant to what you are looking for.
+Note that this is for <em>all the wallets</em> listed above, which includes those which are surveys of different caves not just {{cave}}.
+<br />
+If you want accurate cave lengths for {{cave}}, go to the <a href="/survexfile/{{cave.survex_file}}">primary survex file</a> for this cave 
+and click on the "Run 'cavern' on this SVX file" button at the bottom of the page.
 <br />
 <table width=95%>
 <tr><th>Wallet</th><th width=13%>Wallet Date</th><th>Wallet Name</th><th width=25%>People</th><th>Scans</th><th>Survex blocks</th><th>Drawings using these scans</th></tr>