bikemap/tracking/models.py
2015-09-08 11:55:41 -05:00

58 lines
1.6 KiB
Python

from django.contrib.gis.db import models
# Create your models here.
from django.contrib.auth.models import User
class Track(models.Model):
user = models.ForeignKey(User, blank=False)
start = models.DateTimeField()
name = models.CharField(max_length=1024, blank=False)
description = models.TextField(blank=True)
@property
def finish(self):
return self.segment_set.order_by("-time")[0].finish
def __str__(self):
return "[{user}] '{name}' from {start} to {finish}".format(
user=self.user.username,
name=self.name,
start=self.start,
finish=self.finish)
class Segment(models.Model):
track = models.ForeignKey(Track)
time = models.DateTimeField()
number = models.IntegerField(default=1)
@property
def finish(self):
return self.point_set.order_by("-time")[0].time
def __str__(self):
return "'{name}' Segment #{number} at {tme}".format(
name=self.track.name,
number=self.number,
tme=self.time)
class Point(models.Model):
time = models.DateTimeField()
elevation = models.DecimalField(max_digits=20, decimal_places=2)
segment = models.ForeignKey(Segment)
# GeoDjango-specific: a geometry field (MultiPolygonField), and
# overriding the default manager with a GeoManager instance.
point = models.PointField()
objects = models.GeoManager()
def __str__(self):
return "'{name}' ({lat},{lon}) -> {alt} on {time}".format(
lat=self.point.x,
lon=self.point.y,
alt=self.elevation,
time=self.time,
name=self.segment.track.name)