better integration of svx file DatIssues

core/views/survex.py

@@ -104,10 +104,13 @@ class SvxForm(forms.Form):
     outputtype = forms.CharField(widget=forms.TextInput(attrs={"readonly":True}))
     code = forms.CharField(widget=forms.Textarea(attrs={"cols":150, "rows":36}))
     
+    template = False
+    
     def GetDiscCode(self):
         fname = survexdatasetpath / (self.data['filename'] + ".svx")
         if not os.path.isfile(fname):
             print(">>> >>> WARNING - svx file not found, showing TEMPLATE SVX",fname, flush=True)
+            self.template = True
             return survextemplatefile
         fin = open(fname, "rt",encoding='utf8',newline='')
         svxtext = fin.read() 
@@ -167,6 +170,8 @@ def svx(request, survex_file):
     editing) with buttons which allow SAVE, check for DIFFerences from saved, and RUN (which runs the
     cavern executable and displays the output below the main textarea). Requires CSRF to be set upcorrect;ly, and requires permission to write to  the filesystem.
     '''
+    warning = False
+    
     # get the basic data from the file given in the URL
     dirname = os.path.split(survex_file)[0]
     dirname += "/"
@@ -210,7 +215,8 @@ def svx(request, survex_file):
     #process(survex_file)
     if 'code' not in form.data:    
         form.data['code'] = form.GetDiscCode()
-    
+        if form.template:
+            warning = True
     if not difflist:
         difflist.append("none")
     if message:
@@ -220,6 +226,7 @@ def svx(request, survex_file):
     svxincludes = re.findall(r'\*include\s+(\S+)(?i)', form.data['code'] or "")
     
     vmap = {'settings': settings,
+            'warning': warning,
             'has_3d': os.path.isfile(survexdatasetpath / survex_file / ".3d"),
             'title': survex_file,
             'svxincludes': svxincludes,