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fix: cast Decimal to float for Haversine geo search query #65

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fix: cast Decimal to float for Haversine geo search query #65

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6 changes: 5 additions & 1 deletion src/zenflows/vf/economic_resource/query.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -83,12 +83,16 @@ defp all_f(q, {:or_repo, v}),

@spec apply_geo_filter(Queryable.t(), map()) :: Queryable.t()
defp apply_geo_filter(q, %{near_lat: lat, near_long: long, near_distance_km: dist}) do
lat = Decimal.to_float(lat)
long = Decimal.to_float(long)
dist = Decimal.to_float(dist)

from x in q,
join: loc in SpatialThing,
on: loc.id == x.current_location_id,
where: not is_nil(loc.lat) and not is_nil(loc.long),
where: fragment(
"(6371 * acos(LEAST(1.0, cos(radians(?)) * cos(radians(?)) * cos(radians(?) - radians(?)) + sin(radians(?)) * sin(radians(?))))) <= ?",
"(6371 * acos(LEAST(1.0, cos(radians(?)) * cos(radians(?::float8)) * cos(radians(?::float8) - radians(?)) + sin(radians(?)) * sin(radians(?::float8))))) <= ?",
^lat, loc.lat, loc.long, ^long, ^lat, loc.lat, ^dist
)
end
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