My application is throwing the following error:
DatabaseError: GetProj4StringSPI: Cannot find SRID (3857) in spatial_ref_sys
I'm guessing (as stated above) that I need to add the SRID 3857 to the spatial_ref_sys.
Looking at my notes from a previous project I've accomplished this in the past by doing the following:
Adding an entry for that SRID to the epsg file, then
Running the following from python shell
from django.contrib.gis.utils import add_postgis_srs
My problem then becomes, I don't know what the epsg entry should be for 3857.
Am I approaching this problem correctly?
If so, does anyone know what the epsg entry for 3857 should be?
Is it just the same as 900913 (also spherical mercator)? In other words, could I just replace 900913 with 3857 in the following?
<900913> +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs