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Made gis_terms be a set, rather than a dict with None for all keys.

This commit is contained in:
Alex Gaynor 2013-05-09 08:13:13 -07:00
parent 6634cb7b53
commit a53d7a0a50
5 changed files with 45 additions and 40 deletions
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4
django/contrib/gis/db/backends/base.py
View File

@ -3,10 +3,12 @@ Base/mixin classes for the spatial backend database operations and the
`SpatialRefSys` model the backend.
"""
import re
from django.contrib.gis import gdal
from django.utils import six
from django.utils.encoding import python_2_unicode_compatible
class BaseSpatialOperations(object):
"""
This module holds the base `BaseSpatialBackend` object, which is
@ -18,7 +20,7 @@ class BaseSpatialOperations(object):
geometry_operators = {}
geography_operators = {}
geography_functions = {}
gis_terms = {}
gis_terms = set()
truncate_params = {}
# Quick booleans for the type of this spatial backend, and

29
django/contrib/gis/db/backends/mysql/operations.py
View File

@ -3,7 +3,6 @@ from django.db.backends.mysql.base import DatabaseOperations
from django.contrib.gis.db.backends.adapter import WKTAdapter
from django.contrib.gis.db.backends.base import BaseSpatialOperations
from django.utils import six
class MySQLOperations(DatabaseOperations, BaseSpatialOperations):
@ -18,21 +17,21 @@ class MySQLOperations(DatabaseOperations, BaseSpatialOperations):
Adaptor = Adapter # Backwards-compatibility alias.
geometry_functions = {
'bbcontains' : 'MBRContains', # For consistency w/PostGIS API
'bboverlaps' : 'MBROverlaps', # .. ..
'contained' : 'MBRWithin', # .. ..
'contains' : 'MBRContains',
'disjoint' : 'MBRDisjoint',
'equals' : 'MBREqual',
'exact' : 'MBREqual',
'intersects' : 'MBRIntersects',
'overlaps' : 'MBROverlaps',
'same_as' : 'MBREqual',
'touches' : 'MBRTouches',
'within' : 'MBRWithin',
}
'bbcontains': 'MBRContains', # For consistency w/PostGIS API
'bboverlaps': 'MBROverlaps', # .. ..
'contained': 'MBRWithin', # .. ..
'contains': 'MBRContains',
'disjoint': 'MBRDisjoint',
'equals': 'MBREqual',
'exact': 'MBREqual',
'intersects': 'MBRIntersects',
'overlaps': 'MBROverlaps',
'same_as': 'MBREqual',
'touches': 'MBRTouches',
'within': 'MBRWithin',
}
gis_terms = dict([(term, None) for term in list(geometry_functions) + ['isnull']])
gis_terms = set(geometry_functions) | set(['isnull'])
def geo_db_type(self, f):
return f.geom_type

21
django/contrib/gis/db/backends/oracle/operations.py
View File

@ -18,6 +18,7 @@ from django.contrib.gis.geometry.backend import Geometry
from django.contrib.gis.measure import Distance
from django.utils import six
class SDOOperation(SpatialFunction):
"Base class for SDO* Oracle operations."
sql_template = "%(function)s(%(geo_col)s, %(geometry)s) %(operator)s '%(result)s'"
@ -32,6 +33,7 @@ class SDODistance(SpatialFunction):
sql_template = ('%(function)s(%(geo_col)s, %(geometry)s, %(tolerance)s) '
'%(operator)s %(result)s')
dist_func = 'SDO_GEOM.SDO_DISTANCE'
def __init__(self, op, tolerance=0.05):
super(SDODistance, self).__init__(self.dist_func,
tolerance=tolerance,
@ -40,6 +42,7 @@ class SDODistance(SpatialFunction):
class SDODWithin(SpatialFunction):
dwithin_func = 'SDO_WITHIN_DISTANCE'
sql_template = "%(function)s(%(geo_col)s, %(geometry)s, %%s) = 'TRUE'"
def __init__(self):
super(SDODWithin, self).__init__(self.dwithin_func)
@ -48,6 +51,7 @@ class SDOGeomRelate(SpatialFunction):
relate_func = 'SDO_GEOM.RELATE'
sql_template = ("%(function)s(%(geo_col)s, '%(mask)s', %(geometry)s, "
"%(tolerance)s) %(operator)s '%(mask)s'")
def __init__(self, mask, tolerance=0.05):
# SDO_GEOM.RELATE(...) has a peculiar argument order: column, mask, geom, tolerance.
# Moreover, the runction result is the mask (e.g., 'DISJOINT' instead of 'TRUE').
@ -60,6 +64,7 @@ class SDORelate(SpatialFunction):
mask_regex = re.compile(r'^(%s)(\+(%s))*$' % (masks, masks), re.I)
sql_template = "%(function)s(%(geo_col)s, %(geometry)s, 'mask=%(mask)s') = 'TRUE'"
relate_func = 'SDO_RELATE'
def __init__(self, mask):
if not self.mask_regex.match(mask):
raise ValueError('Invalid %s mask: "%s"' % (self.relate_func, mask))
@ -79,12 +84,12 @@ class OracleOperations(DatabaseOperations, BaseSpatialOperations):
Adaptor = Adapter # Backwards-compatibility alias.
area = 'SDO_GEOM.SDO_AREA'
gml= 'SDO_UTIL.TO_GMLGEOMETRY'
gml = 'SDO_UTIL.TO_GMLGEOMETRY'
centroid = 'SDO_GEOM.SDO_CENTROID'
difference = 'SDO_GEOM.SDO_DIFFERENCE'
distance = 'SDO_GEOM.SDO_DISTANCE'
extent= 'SDO_AGGR_MBR'
intersection= 'SDO_GEOM.SDO_INTERSECTION'
extent = 'SDO_AGGR_MBR'
intersection = 'SDO_GEOM.SDO_INTERSECTION'
length = 'SDO_GEOM.SDO_LENGTH'
num_geom = 'SDO_UTIL.GETNUMELEM'
num_points = 'SDO_UTIL.GETNUMVERTICES'
@ -127,9 +132,8 @@ class OracleOperations(DatabaseOperations, BaseSpatialOperations):
}
geometry_functions.update(distance_functions)
gis_terms = ['isnull']
gis_terms += list(geometry_functions)
gis_terms = dict([(term, None) for term in gis_terms])
gis_terms = set(['isnull'])
gis_terms.update(geometry_functions)
truncate_params = {'relate' : None}
@ -272,7 +276,8 @@ class OracleOperations(DatabaseOperations, BaseSpatialOperations):
given Aggregate instance.
"""
agg_name = agg.__class__.__name__.lower()
if agg_name == 'union' : agg_name += 'agg'
if agg_name == 'union':
agg_name += 'agg'
if agg.is_extent:
sql_template = '%(function)s(%(field)s)'
else:
@ -295,5 +300,5 @@ class OracleOperations(DatabaseOperations, BaseSpatialOperations):
"""
# This code doesn't work for bulk insert cases.
assert len(placeholders) == 1
return [[param for pholder,param
return [[param for pholder, param
in six.moves.zip(placeholders[0], params[0]) if pholder != 'NULL'], ]

26
django/contrib/gis/db/backends/postgis/operations.py
View File

@ -208,23 +208,22 @@ class PostGISOperations(DatabaseOperations, BaseSpatialOperations):
# for the geography type.
self.geography_functions = self.distance_functions.copy()
self.geography_functions.update({
'coveredby' : self.geometry_functions['coveredby'],
'covers' : self.geometry_functions['covers'],
'intersects' : self.geometry_functions['intersects'],
})
'coveredby': self.geometry_functions['coveredby'],
'covers': self.geometry_functions['covers'],
'intersects': self.geometry_functions['intersects'],
})
self.geography_operators = {
'bboverlaps' : PostGISOperator('&&'),
}
'bboverlaps': PostGISOperator('&&'),
}
# Native geometry type support added in PostGIS 2.0.
if version >= (2, 0, 0):
self.geometry = True
# Creating a dictionary lookup of all GIS terms for PostGIS.
gis_terms = ['isnull']
gis_terms += list(self.geometry_operators)
gis_terms += list(self.geometry_functions)
self.gis_terms = dict([(term, None) for term in gis_terms])
self.gis_terms = set(['isnull'])
self.gis_terms.update(self.geometry_operators)
self.gis_terms.update(self.geometry_functions)
self.area = prefix + 'Area'
self.bounding_circle = BOUNDINGCIRCLE
@ -247,7 +246,7 @@ class PostGISOperations(DatabaseOperations, BaseSpatialOperations):
self.makeline = prefix + 'MakeLine'
self.mem_size = prefix + 'mem_size'
self.num_geom = prefix + 'NumGeometries'
self.num_points =prefix + 'npoints'
self.num_points = prefix + 'npoints'
self.perimeter = prefix + 'Perimeter'
self.point_on_surface = prefix + 'PointOnSurface'
self.polygonize = prefix + 'Polygonize'
@ -324,7 +323,7 @@ class PostGISOperations(DatabaseOperations, BaseSpatialOperations):
raise NotImplementedError('PostGIS 1.5 supports geography columns '
'only with an SRID of 4326.')
return 'geography(%s,%d)'% (f.geom_type, f.srid)
return 'geography(%s,%d)' % (f.geom_type, f.srid)
elif self.geometry:
# Postgis 2.0 supports type-based geometries.
# TODO: Support 'M' extension.
@ -565,7 +564,8 @@ class PostGISOperations(DatabaseOperations, BaseSpatialOperations):
if not self.check_aggregate_support(agg):
raise NotImplementedError('%s spatial aggregate is not implmented for this backend.' % agg_name)
agg_name = agg_name.lower()
if agg_name == 'union': agg_name += 'agg'
if agg_name == 'union':
agg_name += 'agg'
sql_template = '%(function)s(%(field)s)'
sql_function = getattr(self, agg_name)
return sql_template, sql_function

5
django/contrib/gis/db/backends/spatialite/operations.py
View File

@ -117,9 +117,8 @@ class SpatiaLiteOperations(DatabaseOperations, BaseSpatialOperations):
super(DatabaseOperations, self).__init__(connection)
# Creating the GIS terms dictionary.
gis_terms = ['isnull']
gis_terms += self.geometry_functions.keys()
self.gis_terms = dict([(term, None) for term in gis_terms])
self.gis_terms = set(['isnull'])
self.gis_terms.update(self.geometry_functions)
@cached_property
def spatial_version(self):