models.Radius Class Reference

Inheritance diagram for models.Radius:

Public Member Functions
def	__init__
Public Member Functions inherited from models.ContinuousRange
def	__init__
def	get_end
def	get_start

Private Attributes
	_centre
	_end
	_radius
	_start

Detailed Description

Used to tell proxy methods that a range of values defined by a centre and a radius should be queried for - special case of filter clauses.

Definition at line 100 of file models.py.

Constructor & Destructor Documentation

def models.Radius.__init__	(		self,
			centre,
			radius
	)

centre and radius should be objects that can be added and subtracted.
eg, centre could be a datetime.datetime object, and radius could be datetime.timedelta

Radius and Range objects are assigned to properties of querying.connection objects, hence are given the database type.

Definition at line 104 of file models.py.

    def __init__(self, centre, radius):
        """
        centre and radius should be objects that can be added and subtracted.
        eg, centre could be a datetime.datetime object, and radius could be datetime.timedelta

        Radius and Range objects are assigned to properties of querying.connection objects, hence are given the database type.
        """
        self._centre = centre
        self._radius = radius
        self._start = self._centre - self._radius
        self._end = self._centre + self._radius