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from django.apps import apps
from haystack.backends import BaseEngine, BaseSearchBackend, BaseSearchQuery, log_query
from haystack.models import SearchResult
from haystack.routers import BaseRouter
from haystack.utils import get_identifier
class MockMasterSlaveRouter(BaseRouter):
def for_read(self, **hints):
return "slave"
def for_write(self, **hints):
return "master"
class MockPassthroughRouter(BaseRouter):
def for_read(self, **hints):
if hints.get("pass_through") is False:
return "pass"
return None
def for_write(self, **hints):
if hints.get("pass_through") is False:
return "pass"
return None
class MockMultiRouter(BaseRouter):
def for_write(self, **hints):
return ["multi1", "multi2"]
class MockSearchResult(SearchResult):
def __init__(self, app_label, model_name, pk, score, **kwargs):
super().__init__(app_label, model_name, pk, score, **kwargs)
self._model = apps.get_model("core", model_name)
MOCK_SEARCH_RESULTS = [
MockSearchResult("core", "MockModel", i, 1 - (i / 100.0)) for i in range(1, 100)
]
MOCK_INDEX_DATA = {}
class MockSearchBackend(BaseSearchBackend):
model_name = "mockmodel"
def update(self, index, iterable, commit=True):
global MOCK_INDEX_DATA
for obj in iterable:
doc = index.full_prepare(obj)
MOCK_INDEX_DATA[doc["id"]] = doc
def remove(self, obj, commit=True):
global MOCK_INDEX_DATA
if commit:
del MOCK_INDEX_DATA[get_identifier(obj)]
def clear(self, models=None, commit=True):
global MOCK_INDEX_DATA
MOCK_INDEX_DATA = {}
@log_query
def search(self, query_string, **kwargs):
from haystack import connections
global MOCK_INDEX_DATA
results = []
hits = len(MOCK_INDEX_DATA)
indexed_models = connections["default"].get_unified_index().get_indexed_models()
def junk_sort(key):
app, model, pk = key.split(".")
if pk.isdigit():
return int(pk)
else:
return ord(pk[0])
sliced = sorted(MOCK_INDEX_DATA, key=junk_sort)
for i, result in enumerate(sliced):
app_label, model_name, pk = result.split(".")
model = apps.get_model(app_label, model_name)
if model:
if model in indexed_models:
results.append(
MockSearchResult(app_label, model_name, pk, 1 - (i / 100.0))
)
else:
hits -= 1
else:
hits -= 1
return {
"results": results[kwargs.get("start_offset") : kwargs.get("end_offset")],
"hits": hits,
}
def more_like_this(
self, model_instance, additional_query_string=None, result_class=None
):
return self.search(query_string="*")
class CharPKMockSearchBackend(MockSearchBackend):
model_name = "charpkmockmodel"
mock_search_results = [
MockSearchResult("core", "CharPKMockModel", "sometext", 0.5),
MockSearchResult("core", "CharPKMockModel", "1234", 0.3),
]
class UUIDMockSearchBackend(MockSearchBackend):
model_name = "uuidmockmodel"
mock_search_results = [
MockSearchResult(
"core", "UUIDMockModel", "53554c58-7051-4350-bcc9-dad75eb248a9", 0.5
),
MockSearchResult(
"core", "UUIDMockModel", "77554c58-7051-4350-bcc9-dad75eb24888", 0.5
),
]
class ReadQuerySetMockSearchBackend(MockSearchBackend):
model_name = "afifthmockmodel"
mock_search_results = [
MockSearchResult("core", "afifthmockmodel", 1, 2),
MockSearchResult("core", "afifthmockmodel", 2, 2),
]
class MixedMockSearchBackend(MockSearchBackend):
@log_query
def search(self, query_string, **kwargs):
if kwargs.get("end_offset") and kwargs["end_offset"] > 30:
kwargs["end_offset"] = 30
result_info = super().search(query_string, **kwargs)
result_info["hits"] = 30
# Remove search results from other models.
temp_results = []
for result in result_info["results"]:
if not int(result.pk) in (9, 13, 14):
# MockSearchResult('core', 'AnotherMockModel', 9, .1)
# MockSearchResult('core', 'AnotherMockModel', 13, .1)
# MockSearchResult('core', 'NonexistentMockModel', 14, .1)
temp_results.append(result)
result_info["results"] = temp_results
return result_info
class MockSearchQuery(BaseSearchQuery):
def build_query(self):
return ""
def clean(self, query_fragment):
return query_fragment
# def run_mlt(self):
# # To simulate the chunking behavior of a regular search, return a slice
# # of our results using start/end offset.
# final_query = self.build_query()
# results = self.backend.more_like_this(self._mlt_instance, final_query)
# import pdb; pdb.set_trace()
# self._results = results['results'][self.start_offset:self.end_offset]
# self._hit_count = results['hits']
class MockEngine(BaseEngine):
backend = MockSearchBackend
query = MockSearchQuery
|
