mirror of https://github.com/django/django.git
Fixed #15277 -- Cleaned up `ogrinspect` command, added tests and extended support beyond file-based OGR data sources. Thanks, willinoed for bug report and jpaulett for initial patch.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@16845 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Justin Bronn
parent
f97a574196
commit
3ac877840a
|
|
@ -1,15 +0,0 @@
|
|||
from django.core.management.base import BaseCommand, CommandError
|
||||
|
||||
class ArgsCommand(BaseCommand):
|
||||
"""
|
||||
Command class for commands that take multiple arguments.
|
||||
"""
|
||||
args = '<arg arg ...>'
|
||||
|
||||
def handle(self, *args, **options):
|
||||
if not args:
|
||||
raise CommandError('Must provide the following arguments: %s' % self.args)
|
||||
return self.handle_args(*args, **options)
|
||||
|
||||
def handle_args(self, *args, **options):
|
||||
raise NotImplementedError()
|
||||
|
|
@ -1,7 +1,7 @@
|
|||
import os
|
||||
from optparse import make_option
|
||||
from django.contrib.gis import gdal
|
||||
from django.contrib.gis.management.base import ArgsCommand, CommandError
|
||||
from django.core.management.base import LabelCommand, CommandError
|
||||
|
||||
def layer_option(option, opt, value, parser):
|
||||
"""
|
||||
|
|
@ -26,13 +26,13 @@ def list_option(option, opt, value, parser):
|
|||
dest = [s for s in value.split(',')]
|
||||
setattr(parser.values, option.dest, dest)
|
||||
|
||||
class Command(ArgsCommand):
|
||||
class Command(LabelCommand):
|
||||
help = ('Inspects the given OGR-compatible data source (e.g., a shapefile) and outputs\n'
|
||||
'a GeoDjango model with the given model name. For example:\n'
|
||||
' ./manage.py ogrinspect zipcode.shp Zipcode')
|
||||
args = '[data_source] [model_name]'
|
||||
|
||||
option_list = ArgsCommand.option_list + (
|
||||
option_list = LabelCommand.option_list + (
|
||||
make_option('--blank', dest='blank', type='string', action='callback',
|
||||
callback=list_option, default=False,
|
||||
help='Use a comma separated list of OGR field names to add '
|
||||
|
|
@ -72,7 +72,7 @@ class Command(ArgsCommand):
|
|||
|
||||
requires_model_validation = False
|
||||
|
||||
def handle_args(self, *args, **options):
|
||||
def handle(self, *args, **options):
|
||||
try:
|
||||
data_source, model_name = args
|
||||
except ValueError:
|
||||
|
|
@ -81,10 +81,6 @@ class Command(ArgsCommand):
|
|||
if not gdal.HAS_GDAL:
|
||||
raise CommandError('GDAL is required to inspect geospatial data sources.')
|
||||
|
||||
# TODO: Support non file-based OGR datasources.
|
||||
if not os.path.isfile(data_source):
|
||||
raise CommandError('The given data source cannot be found: "%s"' % data_source)
|
||||
|
||||
# Removing options with `None` values.
|
||||
options = dict([(k, v) for k, v in options.items() if not v is None])
|
||||
|
||||
|
|
@ -97,8 +93,9 @@ class Command(ArgsCommand):
|
|||
# Whether the user wants to generate the LayerMapping dictionary as well.
|
||||
show_mapping = options.pop('mapping', False)
|
||||
|
||||
# Popping the verbosity global option, as it's not accepted by `_ogrinspect`.
|
||||
# Getting rid of settings that `_ogrinspect` doesn't like.
|
||||
verbosity = options.pop('verbosity', False)
|
||||
settings = options.pop('settings', False)
|
||||
|
||||
# Returning the output of ogrinspect with the given arguments
|
||||
# and options.
|
||||
|
|
@ -119,4 +116,4 @@ class Command(ArgsCommand):
|
|||
'%s_mapping = {' % model_name.lower()])
|
||||
output.extend([" '%s' : '%s'," % (rev_mapping[ogr_fld], ogr_fld) for ogr_fld in ds[options['layer_key']].fields])
|
||||
output.extend([" '%s' : '%s'," % (options['geom_name'], mapping_dict[options['geom_name']]), '}'])
|
||||
return '\n'.join(output)
|
||||
return '\n'.join(output) + '\n'
|
||||
|
|
|
|||
|
|
@ -29,15 +29,13 @@ def geo_apps(namespace=True, runtests=False):
|
|||
|
||||
# The following GeoDjango test apps depend on GDAL support.
|
||||
if HAS_GDAL:
|
||||
# Geographic admin requires GDAL
|
||||
apps.append('geoadmin')
|
||||
# Geographic admin, LayerMapping, and ogrinspect test apps
|
||||
# all require GDAL.
|
||||
apps.extend(['geoadmin', 'layermap', 'inspectapp'])
|
||||
|
||||
# 3D apps use LayerMapping, which uses GDAL.
|
||||
# 3D apps use LayerMapping, which uses GDAL and require GEOS 3.1+.
|
||||
if connection.ops.postgis and GEOS_PREPARE:
|
||||
apps.append('geo3d')
|
||||
|
||||
apps.append('layermap')
|
||||
|
||||
if runtests:
|
||||
return [('django.contrib.gis.tests', app) for app in apps]
|
||||
elif namespace:
|
||||
|
|
|
|||
|
|
@ -0,0 +1,13 @@
|
|||
from django.contrib.gis.db import models
|
||||
|
||||
class AllOGRFields(models.Model):
|
||||
f_decimal = models.FloatField()
|
||||
f_float = models.FloatField()
|
||||
f_int = models.IntegerField()
|
||||
f_char = models.CharField(max_length=10)
|
||||
f_date = models.DateField()
|
||||
f_datetime = models.DateTimeField()
|
||||
f_time = models.TimeField()
|
||||
geom = models.PolygonField()
|
||||
|
||||
objects = models.GeoManager()
|
||||
|
|
@ -0,0 +1,122 @@
|
|||
import os
|
||||
from django.db import connections
|
||||
from django.test import TestCase
|
||||
from django.contrib.gis.gdal import Driver
|
||||
from django.contrib.gis.geometry.test_data import TEST_DATA
|
||||
from django.contrib.gis.utils.ogrinspect import ogrinspect
|
||||
from models import AllOGRFields
|
||||
|
||||
|
||||
class OGRInspectTest(TestCase):
|
||||
def test_poly(self):
|
||||
shp_file = os.path.join(TEST_DATA, 'test_poly', 'test_poly.shp')
|
||||
model_def = ogrinspect(shp_file, 'MyModel')
|
||||
|
||||
expected = [
|
||||
'# This is an auto-generated Django model module created by ogrinspect.',
|
||||
'from django.contrib.gis.db import models',
|
||||
'',
|
||||
'class MyModel(models.Model):',
|
||||
' float = models.FloatField()',
|
||||
' int = models.FloatField()',
|
||||
' str = models.CharField(max_length=80)',
|
||||
' geom = models.PolygonField(srid=-1)',
|
||||
' objects = models.GeoManager()',
|
||||
]
|
||||
|
||||
self.assertEqual(model_def, '\n'.join(expected))
|
||||
|
||||
def test_date_field(self):
|
||||
shp_file = os.path.join(TEST_DATA, 'cities', 'cities.shp')
|
||||
model_def = ogrinspect(shp_file, 'City')
|
||||
|
||||
expected = [
|
||||
'# This is an auto-generated Django model module created by ogrinspect.',
|
||||
'from django.contrib.gis.db import models',
|
||||
'',
|
||||
'class City(models.Model):',
|
||||
' name = models.CharField(max_length=80)',
|
||||
' population = models.FloatField()',
|
||||
' density = models.FloatField()',
|
||||
' created = models.DateField()',
|
||||
' geom = models.PointField(srid=-1)',
|
||||
' objects = models.GeoManager()',
|
||||
]
|
||||
|
||||
self.assertEqual(model_def, '\n'.join(expected))
|
||||
|
||||
def test_time_field(self):
|
||||
# Only possible to test this on PostGIS at the momemnt. MySQL
|
||||
# complains about permissions, and SpatiaLite/Oracle are
|
||||
# insanely difficult to get support compiled in for in GDAL.
|
||||
if not connections['default'].ops.postgis:
|
||||
return
|
||||
|
||||
# Getting the database identifier used by OGR, if None returned
|
||||
# GDAL does not have the support compiled in.
|
||||
ogr_db = get_ogr_db_string()
|
||||
if not ogr_db:
|
||||
return
|
||||
|
||||
# writing shapefules via GDAL currently does not support writing OGRTime
|
||||
# fields, so we need to actually use a database
|
||||
model_def = ogrinspect(ogr_db, 'Measurement',
|
||||
layer_key=AllOGRFields._meta.db_table,
|
||||
decimal=['f_decimal'])
|
||||
|
||||
expected = [
|
||||
'# This is an auto-generated Django model module created by ogrinspect.',
|
||||
'from django.contrib.gis.db import models',
|
||||
'',
|
||||
'class Measurement(models.Model):',
|
||||
' f_decimal = models.DecimalField(max_digits=0, decimal_places=0)',
|
||||
' f_int = models.IntegerField()',
|
||||
' f_datetime = models.DateTimeField()',
|
||||
' f_time = models.TimeField()',
|
||||
' f_float = models.FloatField()',
|
||||
' f_char = models.CharField(max_length=10)',
|
||||
' f_date = models.DateField()',
|
||||
' geom = models.PolygonField()',
|
||||
' objects = models.GeoManager()',
|
||||
]
|
||||
|
||||
self.assertEqual(model_def, '\n'.join(expected))
|
||||
|
||||
def get_ogr_db_string():
|
||||
# Construct the DB string that GDAL will use to inspect the database.
|
||||
# GDAL will create its own connection to the database, so we re-use the
|
||||
# connection settings from the Django test. This approach is a bit fragile
|
||||
# and cannot work on any other database other than PostgreSQL at the moment.
|
||||
db = connections.databases['default']
|
||||
|
||||
# Map from the django backend into the OGR driver name and database identifier
|
||||
# http://www.gdal.org/ogr/ogr_formats.html
|
||||
#
|
||||
# TODO: Support Oracle (OCI), MySQL, and SpatiaLite.
|
||||
drivers = {
|
||||
'django.contrib.gis.db.backends.postgis': ('PostgreSQL', 'PG'),
|
||||
}
|
||||
|
||||
drv_name, db_str = drivers[db['ENGINE']]
|
||||
|
||||
# Ensure that GDAL library has driver support for the database.
|
||||
try:
|
||||
Driver(drv_name)
|
||||
except:
|
||||
return None
|
||||
|
||||
# Build the params of the OGR database connection string
|
||||
# TODO: connection strings are database-dependent, thus if
|
||||
# we ever test other backends, this will need to change.
|
||||
params = ["dbname='%s'" % db['NAME']]
|
||||
def add(key, template):
|
||||
value = db.get(key, None)
|
||||
# Don't add the parameter if it is not in django's settings
|
||||
if value:
|
||||
params.append(template % value)
|
||||
add('HOST', "host='%s'")
|
||||
add('PORT', "port='%s'")
|
||||
add('USER', "user='%s'")
|
||||
add('PASSWORD', "password='%s'")
|
||||
|
||||
return '%s:%s' % (db_str, ' '.join(params))
|
||||
|
|
@ -8,7 +8,7 @@ Author: Travis Pinney, Dane Springmeyer, & Justin Bronn
|
|||
from itertools import izip
|
||||
# Requires GDAL to use.
|
||||
from django.contrib.gis.gdal import DataSource
|
||||
from django.contrib.gis.gdal.field import OFTDate, OFTDateTime, OFTInteger, OFTReal, OFTString
|
||||
from django.contrib.gis.gdal.field import OFTDate, OFTDateTime, OFTInteger, OFTReal, OFTString, OFTTime
|
||||
|
||||
def mapping(data_source, geom_name='geom', layer_key=0, multi_geom=False):
|
||||
"""
|
||||
|
|
@ -189,7 +189,7 @@ def _ogrinspect(data_source, model_name, geom_name='geom', layer_key=0, srid=Non
|
|||
yield ' %s = models.DateField(%s)' % (mfield, kwargs_str[2:])
|
||||
elif field_type is OFTDateTime:
|
||||
yield ' %s = models.DateTimeField(%s)' % (mfield, kwargs_str[2:])
|
||||
elif field_type is OFTDate:
|
||||
elif field_type is OFTTime:
|
||||
yield ' %s = models.TimeField(%s)' % (mfield, kwargs_str[2:])
|
||||
else:
|
||||
raise TypeError('Unknown field type %s in %s' % (field_type, mfield))
|
||||
|
|
|
|||
Loading…
Reference in New Issue