Updates to make 2018 blog merge work (faster)

core/views/logbooks.py

@@ -1,4 +1,5 @@
 import datetime
+import time
 import os.path
 import re
 
@@ -186,24 +187,26 @@ def personexpedition(request, first_name='',  last_name='', year=''):
 
 
 def logbookentry(request, date, slug):
-    this_logbookentry = LogbookEntry.objects.filter(date=date, slug=slug)
+    # start = time.time()
+    trips = LogbookEntry.objects.filter(date=date) # all the trips not just this one
+    this_logbookentry = trips.filter(date=date, slug=slug)
     
     if this_logbookentry:
         if len(this_logbookentry)>1:
             return render(request, 'object_list.html',{'object_list':this_logbookentry})
         else:
-            trips = LogbookEntry.objects.filter(date=date)
             wallets = set()
-            refwallets = Wallet.objects.filter(survexblock__date=date)
+            allwallets = Wallet.objects.all()
+            refwallets = allwallets.filter(survexblock__date=date)
             for r in refwallets:
                 wallets.add(r)
-            
-            allwallets = Wallet.objects.all()
+           
             # Note that w.year() only works for wallets which have a valid JSON file existing
-            for w in allwallets:
-                if w.date() == date:
-                    wallets.add(w)
-                
+            # This is very slow with a big lag as w.date() is a computed field
+            # Noticably slow with WSL2 and NTFS filesystem, even with caching as walletdate.
+            jwallets = allwallets.filter(walletdate=date)
+            for j in jwallets:
+                wallets.add(j)
             thisexpo = this_expedition = Expedition.objects.get(year=int(date[0:4]))
             if thisexpo:
                 expeditionday = thisexpo.get_expedition_day(date)
@@ -214,6 +217,8 @@ def logbookentry(request, date, slug):
             this_logbookentry=this_logbookentry[0]
             # This is the only page that uses presontrip_next and persontrip_prev
             # and it is calculated on the fly in the model 
+            # duration = time.time()-start
+            # print(f"--- Render after {duration:.2f} seconds")
             return render(request, 'logbookentry.html', 
                 {'logbookentry': this_logbookentry, 'trips': trips, 'svxothers': svxothers, 'wallets': wallets})
     else: