Merge branch 'develop' into develop-2.7

netbox/utilities/forms.py

@@ -286,6 +286,8 @@ class APISelect(SelectWithDisabled):
         name of the query param and the value if the query param's value.
     :param null_option: If true, include the static null option in the selection list.
     """
+    # Only preload the selected option(s); new options are dynamically displayed and added via the API
+    template_name = 'widgets/select_api.html'
 
     def __init__(
         self,
@@ -363,6 +365,36 @@ class APISelectMultiple(APISelect, forms.SelectMultiple):
         self.attrs['data-multiple'] = 1
 
 
+class DatePicker(forms.TextInput):
+    """
+    Date picker using Flatpickr.
+    """
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.attrs['class'] = 'date-picker'
+        self.attrs['placeholder'] = 'YYYY-MM-DD'
+
+
+class DateTimePicker(forms.TextInput):
+    """
+    DateTime picker using Flatpickr.
+    """
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.attrs['class'] = 'datetime-picker'
+        self.attrs['placeholder'] = 'YYYY-MM-DD hh:mm:ss'
+
+
+class TimePicker(forms.TextInput):
+    """
+    Time picker using Flatpickr.
+    """
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.attrs['class'] = 'time-picker'
+        self.attrs['placeholder'] = 'hh:mm:ss'
+
+
 #
 # Form fields
 #
@@ -672,16 +704,22 @@ class ChainedFieldsMixin(forms.BaseForm):
                     else:
                         break
 
+                # Limit field queryset by chained field values
                 if filters_dict:
                     field.queryset = field.queryset.filter(**filters_dict)
+                # Editing an existing instance; limit field to its current value
                 elif not self.is_bound and getattr(self, 'instance', None) and hasattr(self.instance, field_name):
                     obj = getattr(self.instance, field_name)
                     if obj is not None:
                         field.queryset = field.queryset.filter(pk=obj.pk)
                     else:
                         field.queryset = field.queryset.none()
-                elif not self.is_bound:
+                # Creating a new instance with no bound data; nullify queryset
+                elif not self.data.get(field_name):
                     field.queryset = field.queryset.none()
+                # Creating a new instance with bound data; limit queryset to the specified value
+                else:
+                    field.queryset = field.queryset.filter(pk=self.data.get(field_name))
 
 
 class ReturnURLForm(forms.Form):