'Can OR-clauses be combined with distance filters in Haystack for Django?
I've been using a distance filter using regular django query filters within an OR-clause:
# either it's within the preset distance of the location
# OR it's not an in-person event
self.filter(Q(location__distance_lt=(geometry, LOCATION_WITHIN_D)) | ~Q(type=Event.IN_PERSON))
I want to do a similar filtering as part of a haystack query, using SQ:
queryset = queryset.filter(SQ(location__distance_lt=(geometry, LOCATION_WITHIN_D)) | ~SQ(type=Event.IN_PERSON))
but instead I get back the error: not all arguments converted during string formatting
- and that only happens with the distance_lt query part, not the ~SQ(type..)
I'm able to apply the distance filtering with my haystack search query by using
queryset = queryset.dwithin('location', geometry, LOCATION_WITHIN_D)`
but I want to be able to have that 'or' condition in this sub-clause.
Is this even possible with raw querying? How can I construct such a raw query for ElasticSearch and still execute it as part of my haystack query?
Solution 1:[1]
You can perform the search against the Elasticsearch connection.
from django.contrib.gis.measure import D
from haystack.query import SearchQuerySet
sqs = SearchQuerySet('default')
be = sqs.query.backend
LOCATION_WITHIN_D = D(km=0.1)
geometry = {
"lat": 60.1939,
"lon": 11.1003
}
raw_query = {
"query": {
"bool": {
"filter": [
{
"bool": {
"should": [
{
"match": {
"type": Event.IN_PERSON
}
},
{
"geo_distance": {
"distance": str(LOCATION_WITHIN_D),
"location": geometry
}
}
]
}
}
]
}
}
}
result = be.conn.search(body=raw_query, index='name-of-your-index')
Sources
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Source: Stack Overflow
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Solution 1 |