Fixed weird QM issues, all working

core/models/logbooks.py

@@ -251,7 +251,7 @@ class PersonLogEntry(TroggleModel):
 class QM(TroggleModel):
     """This is based on qm.csv in trunk/expoweb/1623/204 which has the fields:
     "Number","Grade","Area","Description","Page reference","Nearest station","Completion description","Comment"
-    
+        
     All the stuff handling TICK QMs is INCOMPLETE
     """
 
@@ -274,13 +274,21 @@ class QM(TroggleModel):
     ticked = models.BooleanField(default=False)  
     location_description = models.TextField(blank=True, null=True)
     completion_description = models.TextField(blank=True, null=True)
-    # completion_date = models.DateField(blank=True, null=True) #never used in fact
     nearest_station_name    = models.CharField(max_length=200, blank=True, null=True)
     resolution_station_name = models.CharField(max_length=200, blank=True, null=True)
     area = models.CharField(max_length=100, blank=True, null=True)
     page_ref = models.TextField(blank=True, null=True)
     comment = models.TextField(blank=True, null=True)
+    loaded_from_csv = models.BooleanField(default=False) 
 
+    class Meta:
+            constraints = [
+                models.UniqueConstraint(
+                    fields=['cave', 'blockname', 'grade', 'number', 'expoyear'], 
+                    name='unique_qm_identity'
+                )
+            ]
+        
     def __str__(self):
         return f"{self.code()}"