(self, dashboard_entries=None,
                                  workspace=None, request=None)
return placeholder_instances
Get placeholder instances.

        :param iterable dashboard_entries: Iterable of
            ``dash.models.DashboardEntry`` objects.
        :param str workspace:
        :param django.http.HttpRequest request:
        :return list: List of `dash.base.BaseDashboardPlaceholder` subclassed
            instances.
Get placeholder instances.
Get placeholder instances .
def get_placeholder_instances(self, dashboard_entries=None,
                                  workspace=None, request=None):
        """Get placeholder instances.

        :param iterable dashboard_entries: Iterable of
            ``dash.models.DashboardEntry`` objects.
        :param str workspace:
        :param django.http.HttpRequest request:
        :return list: List of `dash.base.BaseDashboardPlaceholder` subclassed
            instances.
        """
        entries = self.get_grouped_dashboard_entries(dashboard_entries)

        placeholder_instances = []

        for placeholder_cls in self.get_placeholders(request):

            placeholder = placeholder_cls(self)
            placeholder.request = request
            placeholder.workspace = workspace
            if entries:
                placeholder.dashboard_entries = entries.get(
                    placeholder_cls.uid, None
                )

            placeholder_instances.append(placeholder)

        return placeholder_instances
def get_placeholder_instances ( self , dashboard_entries = None , workspace = None , request = None ) : entries = self . get_grouped_dashboard_entries ( dashboard_entries ) placeholder_instances = [ ] for placeholder_cls in self . get_placeholders ( request ) : placeholder = placeholder_cls ( self ) placeholder . request = request placeholder . workspace = workspace if entries : placeholder . dashboard_entries = entries . get ( placeholder_cls . uid , None ) placeholder_instances . append ( placeholder ) return placeholder_instances