/django/contrib/gis/db/models/sql/conversion.py
Python | 27 lines | 15 code | 4 blank | 8 comment | 0 complexity | 5f8e82ceee1af6c9b89c8724196fe9ba MD5 | raw file
1""" 2This module holds simple classes used by GeoQuery.convert_values 3to convert geospatial values from the database. 4""" 5 6class BaseField(object): 7 empty_strings_allowed = True 8 def get_internal_type(self): 9 "Overloaded method so OracleQuery.convert_values doesn't balk." 10 return None 11 12class AreaField(BaseField): 13 "Wrapper for Area values." 14 def __init__(self, area_att): 15 self.area_att = area_att 16 17class DistanceField(BaseField): 18 "Wrapper for Distance values." 19 def __init__(self, distance_att): 20 self.distance_att = distance_att 21 22class GeomField(BaseField): 23 """ 24 Wrapper for Geometry values. It is a lightweight alternative to 25 using GeometryField (which requires a SQL query upon instantiation). 26 """ 27 pass