""" The GeometryColumns and SpatialRefSys models for the Oracle spatial backend. It should be noted that Oracle Spatial does not have database tables named according to the OGC standard, so the closest analogs are used. For example, the `USER_SDO_GEOM_METADATA` is used for the GeometryColumns model and the `SDO_COORD_REF_SYS` is used for the SpatialRefSys model. """ from django.db import models class GeometryColumns(models.Model): "Maps to the Oracle USER_SDO_GEOM_METADATA table." table_name = models.CharField(max_length=32) column_name = models.CharField(max_length=1024) srid = models.IntegerField(primary_key=True) # TODO: Add support for `diminfo` column (type MDSYS.SDO_DIM_ARRAY). class Meta: app_label = 'gis' db_table = 'USER_SDO_GEOM_METADATA' managed = False @classmethod def table_name_col(cls): """ Returns the name of the metadata column used to store the the feature table name. """ return 'table_name' @classmethod def geom_col_name(cls): """ Returns the name of the metadata column used to store the the feature geometry column. """ return 'column_name' def __unicode__(self): return '%s - %s (SRID: %s)' % (self.table_name, self.column_name, self.srid) class SpatialRefSys(models.Model): "Maps to the Oracle MDSYS.CS_SRS table." cs_name = models.CharField(max_length=68) srid = models.IntegerField(primary_key=True) auth_srid = models.IntegerField() auth_name = models.CharField(max_length=256) wktext = models.CharField(max_length=2046) #cs_bounds = models.GeometryField() # TODO class Meta: abstract = True db_table = 'CS_SRS' managed = False @property def wkt(self): return self.wktext @classmethod def wkt_col(cls): return 'wktext'