Change date time picker widget

judge/widgets/datetime.py

@@ -1,24 +1,19 @@
 from django import forms
+from django.templatetags.static import static
+from django.utils.html import format_html
+from django.forms.utils import flatatt
 
 
 class DateTimePickerWidget(forms.DateTimeInput):
-    template_name = "widgets/datetimepicker.html"
+    input_type = "datetime-local"
 
-    def get_context(self, name, value, attrs):
-        datetimepicker_id = "datetimepicker_{name}".format(name=name)
-        if attrs is None:
-            attrs = dict()
-        attrs["data-target"] = "#{id}".format(id=datetimepicker_id)
-        attrs["class"] = "form-control datetimepicker-input"
-        context = super().get_context(name, value, attrs)
-        context["widget"]["datetimepicker_id"] = datetimepicker_id
-        return context
+    def render(self, name, value, attrs=None, renderer=None):
+        if value is None:
+            value = ""
+        else:
+            value = value.strftime("%Y-%m-%dT%H:%M")
 
-    @property
-    def media(self):
-        css_url = "/static/datetime-picker/datetimepicker.min.css"
-        js_url = "/static/datetime-picker/datetimepicker.full.min.js"
-        return forms.Media(
-            js=[js_url],
-            css={"screen": [css_url]},
+        final_attrs = self.build_attrs(
+            attrs, {"type": self.input_type, "name": name, "value": value}
         )
+        return format_html("<input{}>", flatatt(final_attrs))