Thus, geographic distance lookups on traditional PostGIS geometry columns are only allowed on PointField model fields using a point for the geometry parameter. 注解 In PostGIS 1.5, ST_Distance_Sphere does not limit the geometry types geographic distance queries are performed with. In short: use django queryset extra() I needed to build a web interface using GeoDjango for querying an existing (huge) PostGIS database table which has a geometry column: the_geom = models.PointField(srid=4326) python manage.py inspectdb conveniently created models.py for my django application with the correct class Meta db_table set to the legacy database table name.Thank you, I will try the CONN_MAX_AGE setting, there is no form widget in the page.. During the refactoring and profiling of my view, which suffered one or two concurrent changes along with the 1.11 upgrade, I discovered the added queries.Posted by Django, Mar 6, 2016 3:34 PMNote that the models module is imported from django.contrib.gis.db. The default spatial reference system for geometry fields is WGS84 (meaning the SRID is 4326) – in other words, the field coordinates are in longitude, latitude pairs in units of degrees. To use a different coordinate system, set the SRID of the geometry field with the srid argument. Use an integer representing the coordinate system’s EPSG code. In this tutorial, I will explain to you how to use GeoDjango in Django project.Let us assume you have UserProfile in your Django project.srid ¶ Field.srid¶ This is the SRID code that the field value should be transformed to. For example, if the map widget SRID is different from the SRID more generally used by your application or database, the field will automatically convert input values into that SRID.