I am using Point datatype for storing coordinates in Postgres DB. How do I map Point datatype to Go lang datatypes? I am not finding any documentation for the same.
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- douhan9748 2019-09-05 08:18关注
go-pg does not have native support to Point type (as of PostGIS). What I've done to overpass that (may not be the best solution but I did manage to make it work) was to put on my model individual Latitude and Longitude fields, and on the query itself use
ColumnExpr
to get individual values usingST_X
(for longitude) andST_Y
(for latitude, don't forget that).Model:
type MyModel struct { ID int64 Name string LocationLat float64 LocationLon float64 }
Query:
err := db.Model(&myModel). Column("id", "name"). ColumnExpr("ST_X(location) AS location_lon"). ColumnExpr("ST_Y(location) AS location_lat"). Where("id = ?", id). Select()
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