port to new django, AI automated

location_field/widgets.py

@@ -1,54 +1,67 @@
+import os
+
 from django.forms import widgets
 from django.utils.safestring import mark_safe
-from django.conf import settings
-import os
 
 
 class LocationWidget(widgets.TextInput):
-    def __init__(self, attrs=None, based_field=None, zoom=None, width=610, height=480, **kwargs):
+    """A widget that displays a map for selecting a location."""
+
+    def __init__(
+        self, attrs=None, based_field=None, zoom=None, width=610, height=480, **kwargs
+    ):
         self.based_field = based_field
         self.zoom = zoom
         self.width = width
         self.height = height
-        super(LocationWidget, self).__init__(attrs)
+        super().__init__(attrs)
 
     def render(self, name, value, attrs=None, renderer=None):
-
         if value is not None and len(value) > 0:
-            lat, lng, zoom = value.split(',')
-
-            value = '%s,%s,%d' % (
-                float(lat),
-                float(lng),
-                float(zoom)
-            )
+            try:
+                lat, lng, zoom = value.split(",")
+                value = "%s,%s,%d" % (float(lat), float(lng), int(float(zoom)))
+            except (ValueError, TypeError):
+                value = ""
         else:
-            value = ''
+            value = ""
 
-        based_field = "#id_" + self.based_field.name
+        if self.based_field is not None:
+            based_field = "#id_" + self.based_field.name
+        else:
+            based_field = ""
 
         attrs = attrs or {}
-        attrs['readonly'] = "readonly"
-        attrs['data-location-widget'] = name
-        attrs['data-based-field'] = based_field
-        attrs['data-zoom'] = self.zoom
-        attrs['data-map'] = '#map_' + name
-        attrs['data-dialog-id'] = "#map_dialog_" + name
-        text_input = super(LocationWidget, self).render(name, value, attrs)
+        attrs["readonly"] = "readonly"
+        attrs["data-location-widget"] = name
+        attrs["data-based-field"] = based_field
+        attrs["data-zoom"] = self.zoom or 7
+        attrs["data-map"] = "#map_" + name
+        attrs["data-dialog-id"] = "#map_dialog_" + name
 
+        text_input = super().render(name, value, attrs, renderer)
+
+        # Load the HTML template for the map dialog
         path = os.path.abspath(os.path.dirname(__file__))
-        with open(path + "/media/form.html", 'r') as content_file:
-            html = content_file.read()
+        template_path = os.path.join(path, "media", "form.html")
 
-        return mark_safe(text_input + html % {'name': name, 'width': self.width, 'height': self.height})
+        try:
+            with open(template_path, "r") as content_file:
+                html = content_file.read()
+            html = html % {"name": name, "width": self.width, "height": self.height}
+        except (FileNotFoundError, IOError):
+            html = ""
+
+        return mark_safe(text_input + html)
 
     class Media:
-        css = {
-            'all': ('/location_field/media/form.css',)
-        }
-        # Use schemaless URL so it works with both, http and https websites
+        css = {"all": ("location_field/form.css",)}
         js = (
-            '//maps.google.com/maps/api/js?sensor=false&language=de&key={}'.format(settings.GOOGLE_MAPS_API_KEY),
-            '/static/js/bindWithDelay.js',
-            '/location_field/media/form.js',
+            # jQuery and jQuery UI (consider using local copies or newer CDN)
+            "https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js",
+            "https://ajax.googleapis.com/ajax/libs/jqueryui/1.13.2/jquery-ui.min.js",
+            # Google Maps API - you may need to add an API key
+            "https://maps.google.com/maps/api/js?language=de",
+            "js/bindWithDelay.js",
+            "location_field/form.js",
         )