def test_load_nonexistent(self):
try:
backend = loading.load_backend('foobar')
self.fail()
except ImproperlyConfigured as e:
self.assertEqual(
str(e),
"The provided backend 'foobar' is not a complete Python path to a BaseEngine subclass."
)
try:
backend = loading.load_backend('foobar.FooEngine')
self.fail()
except ImportError as e:
pass
try:
backend = loading.load_backend(
'haystack.backends.simple_backend.FooEngine')
self.fail()
except ImportError as e:
self.assertEqual(
str(e),
"The Python module 'haystack.backends.simple_backend' has no 'FooEngine' class."
)
def test_load_solr(self):
try:
import pysolr
except ImportError:
warnings.warn("Pysolr doesn't appear to be installed. Unable to test loading the Solr backend.")
return
backend = loading.load_backend('haystack.backends.solr_backend.SolrEngine')
self.assertEqual(backend.__name__, 'SolrEngine')
def test_load_whoosh(self):
try:
import whoosh
except ImportError:
warnings.warn("Whoosh doesn't appear to be installed. Unable to test loading the Whoosh backend.")
return
backend = loading.load_backend('haystack.backends.whoosh_backend.WhooshEngine')
self.assertEqual(backend.__name__, 'WhooshEngine')
def test_load_elasticsearch(self):
try:
import pyelasticsearch
except ImportError:
warnings.warn("Pyelasticsearch doesn't appear to be installed. Unable to test loading the ElasticSearch backend.")
return
backend = loading.load_backend('haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine')
self.assertEqual(backend.__name__, 'ElasticsearchSearchEngine')
def test_load_nonexistent(self):
try:
backend = loading.load_backend('foobar')
self.fail()
except ImproperlyConfigured as e:
self.assertEqual(str(e), "The provided backend 'foobar' is not a complete Python path to a BaseEngine subclass.")
try:
backend = loading.load_backend('foobar.FooEngine')
self.fail()
except ImportError as e:
pass
try:
backend = loading.load_backend('haystack.backends.simple_backend.FooEngine')
self.fail()
except ImportError as e:
self.assertEqual(str(e), "The Python module 'haystack.backends.simple_backend' has no 'FooEngine' class.")
def __init__(self, **kwargs):
conn_config = settings.HAYSTACK_CONNECTIONS[kwargs['using']]
base_engine = load_backend(conn_config['BASE_ENGINE'])(**kwargs)
backend_bases = (LanguageSearchBackend, base_engine.backend)
backend_class = type('LanguageSearchBackend', backend_bases,
{'parent_class': base_engine.backend})
self.backend = backend_class
self.query = base_engine.query
super(LanguageSearchEngine, self).__init__(**kwargs)
def __init__(self, **kwargs):
conn_config = settings.HAYSTACK_CONNECTIONS[kwargs['using']]
base_engine = load_backend(conn_config['BASE_ENGINE'])(**kwargs)
backend_bases = (LanguageSearchBackend, base_engine.backend)
backend_class = type('LanguageSearchBackend', backend_bases,
{'parent_class': base_engine.backend})
self.backend = backend_class
self.query = base_engine.query
super(LanguageSearchEngine, self).__init__(**kwargs)
def __init__(self, model_attr=None, use_template=False, template_name=None,
document=False, indexed=True, stored=True, faceted=False,
default=NOT_PROVIDED, null=False, index_fieldname=None,
facet_class=None, boost=1.0, weight=None, solr_field_params=None):
# Track what the index thinks this field is called.
self.instance_name = None
self.model_attr = model_attr
self.use_template = use_template
self.template_name = template_name
self.document = document
self.indexed = indexed
self.stored = stored
self.faceted = faceted
self._default = default
self.null = null
self.index_fieldname = index_fieldname
self.boost = weight or boost
self.is_multivalued = False
# `solr_field_params` should be a dict containing additional
# field arguments to be used in the Solr schema
# e.g. {'termVectors': 'true'}.
self.solr_field_params = solr_field_params
if self.solr_field_params:
from haystack.utils import loading
from haystack.exceptions import MissingDependency
try:
loading.load_backend('haystack.backends.solr_backend.SolrEngine')
except MissingDependency:
raise NotImplementedError("""The solr_field_params attribute
requires a configured Solr search backend.""")
# We supply the facet_class for making it easy to create a faceted
# field based off of this field.
self.facet_class = facet_class
if self.facet_class is None:
self.facet_class = FacetCharField
self.set_instance_name(None)
def _load_forwarded_engine(self):
"""Load a forwarded Haystack search engine.
This will look up the current site configuration and determine the
proper Review Board and Haystack search backends to load, setting any
forwarding state.
IF there's an issue at all with loading the search backends, an error
will be logged and search will be disabled.
This is thread-safe.
"""
cur_load_gen = self._load_gen
with self._load_lock:
if self._load_gen == cur_load_gen:
self.reset_forwarding()
siteconfig = SiteConfiguration.objects.get_current()
search_backend_id = siteconfig.get('search_backend_id')
search_backend = search_backend_registry.get_search_backend(
search_backend_id)
if search_backend is None:
logger.error(
'The search engine "%s" could not be found. '
'If this is provided by an extension, you '
'will have to make sure that extension is '
'enabled. Disabling search.', search_backend_id)
engine = None
else:
try:
engine_cls = load_backend(
search_backend.haystack_backend_name)
engine = engine_cls(using=self.using)
except Exception as e:
logger.error(
'Error loading the search engine "%s": '
'%s', search_backend_id, e)
engine = None
if engine is None:
# Disable search, since it's useless at this point.
siteconfig.set('search_enable', False)
siteconfig.save(update_fields=('settings', ))
else:
self._forwarded_engine = engine
self._search_backend = None
self._forwarded_options = search_backend.configuration
self._load_gen = cur_load_gen + 1
def __init__(self, **kwargs):
conn_config = settings.HAYSTACK_CONNECTIONS[kwargs["using"]]
base_engine = load_backend(conn_config["BASE_ENGINE"])(**kwargs)
backend_bases = (LanguageSearchBackend, base_engine.backend)
backend_class = type(
"LanguageSearchBackend",
backend_bases,
{"parent_class": base_engine.backend},
)
self.backend = backend_class
self.query = base_engine.query
super(LanguageSearchEngine, self).__init__(**kwargs)
class LoadBackendTestCase(TestCase):
def test_load_solr(self):
try:
import pysolr
except ImportError:
warnings.warn("Pysolr doesn't appear to be installed. Unable to test loading the Solr backend.")
return
backend = loading.load_backend('haystack.backends.solr_backend.SolrEngine')
self.assertEqual(backend.__name__, 'SolrEngine')
def test_load_whoosh(self):
try:
import whoosh
except ImportError:
warnings.warn("Whoosh doesn't appear to be installed. Unable to test loading the Whoosh backend.")
return
backend = loading.load_backend('haystack.backends.whoosh_backend.WhooshEngine')
self.assertEqual(backend.__name__, 'WhooshEngine')
def test_load_elasticsearch(self):
try:
import pyelasticsearch
except ImportError:
warnings.warn("Pyelasticsearch doesn't appear to be installed. Unable to test loading the ElasticSearch backend.")
return
backend = loading.load_backend('haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine')
self.assertEqual(backend.__name__, 'ElasticsearchSearchEngine')
def test_load_simple(self):
backend = loading.load_backend('haystack.backends.simple_backend.SimpleEngine')
self.assertEqual(backend.__name__, 'SimpleEngine')
def test_load_nonexistent(self):
try:
backend = loading.load_backend('foobar')
self.fail()
except ImproperlyConfigured, e:
self.assertEqual(str(e), "The provided backend 'foobar' is not a complete Python path to a BaseEngine subclass.")
try:
backend = loading.load_backend('foobar.FooEngine')
self.fail()
except ImportError, e:
pass
def load_haystack_engine(self, **kwargs):
"""Load the Haystack backend engine.
This will construct the engine with the provided parameters. A new
instance will be constructed every time this is called.
Args:
**kwargs (dict):
Keyword arguments to pass to the engine constructor.
Returns:
django_haystack.backends.BaseEngine:
The resulting engine instance.
"""
engine_cls = load_backend(self.haystack_backend_name)
return engine_cls(**kwargs)
def test_load_simple(self):
backend = loading.load_backend("haystack.backends.simple_backend.SimpleEngine")
self.assertEqual(backend.__name__, "SimpleEngine")
def test_load_simple(self):
backend = loading.load_backend('haystack.backends.simple_backend.SimpleEngine')
self.assertEqual(backend.__name__, 'SimpleEngine')
import pyelasticsearch
except ImportError:
warnings.warn("Pyelasticsearch doesn't appear to be installed. Unable to test loading the ElasticSearch backend.")
return
backend = loading.load_backend('haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine')
self.assertEqual(backend.__name__, 'ElasticsearchSearchEngine')
def test_load_simple(self):
backend = loading.load_backend('haystack.backends.simple_backend.SimpleEngine')
self.assertEqual(backend.__name__, 'SimpleEngine')
def test_load_nonexistent(self):
try:
backend = loading.load_backend('foobar')
self.fail()
except ImproperlyConfigured, e:
self.assertEqual(str(e), "The provided backend 'foobar' is not a complete Python path to a BaseEngine subclass.")
try:
backend = loading.load_backend('foobar.FooEngine')
self.fail()
except ImportError, e:
pass
try:
backend = loading.load_backend('haystack.backends.simple_backend.FooEngine')
self.fail()
except ImportError, e:
self.assertEqual(str(e), "The Python module 'haystack.backends.simple_backend' has no 'FooEngine' class.")
def test_load_internalsearch_elasticsearch(self):
backend = loading.load_backend(
"djangocms_internalsearch.backends.elasticsearch2.InternalSearchESEngine"
)
self.assertEqual(backend.__name__, "InternalSearchESEngine")
def test_load_nonexistent(self):
try:
backend = loading.load_backend('foobar')
self.fail()
except ImproperlyConfigured, e:
self.assertEqual(str(e), "The provided backend 'foobar' is not a complete Python path to a BaseEngine subclass.")
