Question

I’m trying geodjango for my pet project and everything looks good with an exception…

In my model I have a field like this:

coordinates= models.PointField(srid=4326,default='POINT(0.0 0.0)')

and my admin extends from admin.OSMGeoAdmin but when I open a new model instance in the admin, I’m not seeing the ‘0.00,0.00’ point selected in the map and if I try to save the document, I’ll get ‘No geometry value provided’. Like if the admin just Can’t put the point in the map.

Also, if I try using the shell, I can save instances w/o problem and get the field with the default value POINT(0.0 0.0).

Am I missing something in the admin?

Thanks for any hint!

Answer 1

Well, after toying around with open layers.html (THANKS noisyboiler!) I found there is an attribute on the OSMGeoAdmin display_wkt, setting it to True will show the textArea without hacking the template.

For entries with existing points, it contains a value in this format:

SRID=3857;POINT(890338.8453418 -1109499.0330941)

So I just change my Point Field to:

coordinates= models.PointField(srid=4326,default='SRID=3857;POINT(0.0 0.0)')

What I understand from Spherical Mercator is that 4326 is for two-dimensional maps, but seems like google Maps uses 3857 which includes a spherical projection.

Now works!