Source Code for Module madrona.xyquery.models

 1  import os 
 2  from django.contrib.gis.db import models 
 3  from django.conf import settings 
 4   
 5 -class Layer(models.Model): 
 6      name = models.CharField(max_length=50,unique=True) 
 7   
 8 -    def __unicode__(self): 
 9          return u"%s" % (self.name) 
10   
11 -class Feature(models.Model): 
12      fid = models.AutoField(primary_key=True) 
13      layer = models.ForeignKey(Layer) 
14      geom = models.PolygonField(srid=4326) 
15      objects = models.GeoManager() 
16   
17 -    def __unicode__(self): 
18          return u"Feature %d of layer %s" % (self.fid, self.layer) 
19   
20 -class Attribute(models.Model): 
21      key = models.CharField(max_length=50) 
22      value = models.TextField() 
23      feature = models.ForeignKey(Feature) 
24   
25 -    def __unicode__(self): 
26          return u"%s::%s" % (self.key,self.value) 
27   
28  rastdir = os.path.abspath(os.path.join(settings.MEDIA_ROOT, "xyquery_rasters")) 
29  if not os.path.exists(rastdir): 
30      os.mkdir(rastdir) 
31   
32 -class Raster(models.Model): 
33      layer = models.ForeignKey(Layer) 
34      filepath = models.FilePathField(path=rastdir, recursive=True) 
35   
36 -    def __unicode__(self): 
37          return u"Raster layer %s" % (self.layer) 
38