>>  point = @property.coords
>> ES_Zone.where{ st_contains(geometry, point) }
=> #<ActiveRecord::Relation []>

>> point.class
=> RGeo::Geos::CAPIPointImpl
>> point.factory
=> #<RGeo::Geos::CAPIFactory:0x860c5838 srid=3785 bufres=1 flags=8>

>> ES_Zone.first.geometry.class
=> RGeo::Geos::CAPIMultiPolygonImpl
>> ES_Zone.first.geometry.factory
=> #<RGeo::Geos::CAPIFactory:0x84889648 srid=3785 bufres=1 flags=8>

scope :containing, -> (point) { where("#{self.table_name}.geometry && ?", point) }

SELECT id, the_geom  FROM thetable
WHERE
the_geom && 'POLYGON((0 0, 0 10, 10 10, 10 0, 0 0))'
AND
ST_Contains(the_geom,'POLYGON((0 0, 0 10, 10 10, 10 0, 0 0))');