text: from django.core.checks import Error, Warning, register
  from importlib import import_module
  import logging
  
  
  from globus_portal_framework.search import settings
  
  log = logging.getLogger(__name__)
  log.debug('Debugging is active.')
  
  
  @register()
  def search_mapper_check(app_configs, **kwargs):
      mod_name, func = settings.SEARCH_MAPPER
      mapper = None
      try:
          mod = import_module(mod_name)
          mapper = getattr(mod, func, None)
      except ModuleNotFoundError:
          pass
  
      if mapper is None:
          return [Error(
                  'Could not find "SEARCH_MAPPER" %s at %s' % (func, mod_name),
                  hint='Check "SEARCH_MAPPER" in settings.py is a function '
                       'located at '
                       '"%s"' % '.'.join(settings.SEARCH_MAPPER),
                  obj=settings,
                  id='globus_portal_framework.search.E001',
                  )]
  
      return []
  
  
  @register()
  def search_schema_check(app_configs, **kwargs):
      try:
          with open(settings.SEARCH_SCHEMA):
              pass
      except FileNotFoundError:
          return [Error(
                  'Could not find SEARCH_SCHEMA at %s' % settings.SEARCH_SCHEMA,
                  hint='Ensure the path is set correctly in your settings.py',
                  obj=settings,
                  id='globus_portal_framework.search.E002',
                  )]
  
      return []
  