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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import csv
import datetime, time
from django.core.management.base import BaseCommand, CommandError
from django.core.exceptions import ObjectDoesNotExist
from chimere import tasks
from chimere.admin import export_to_csv, export_to_kml, export_to_shapefile
from chimere.models import Category, SubCategory, Marker, Route
EXPORTER = {'CSV':export_to_csv,
'KML':export_to_kml,
'SHP':export_to_shapefile}
class Command(BaseCommand):
args = '<subcategory_id> <CSV|KML|SHP> <marker|route> <filename>'
help = "Export items from a subcategory in CSV, KML or ShapeFile"
def handle(self, *args, **options):
subcat = None
if args and args[0]:
try:
subcat = SubCategory.objects.get(pk=int(args[0]))
except (ValueError, ObjectDoesNotExist) as e:
raise CommandError("Sub-category with ID '%s' doesn't exist." %\
args[0])
while not subcat:
self.stdout.write('Choose a sub-category:\n')
for cat in Category.objects.order_by('order'):
self.stdout.write('* %s\n' % cat.name)
for subcat in cat.subcategories.order_by('order').all():
self.stdout.write(' %d - %s\n' % (subcat.pk, subcat.name))
self.stdout.write('\nSub-category ID: ')
self.stdout.flush()
v = input()
try:
subcat = SubCategory.objects.get(pk=v)
except (ValueError, ObjectDoesNotExist) as e:
subcat = None
self.stdout.write("Sub-category with ID '%s' doesn't exist.\n\n"
% v)
frmat = None
if args and args[1]:
try:
assert(args[1] in ('CSV', 'KML', 'SHP'))
except AssertionError:
raise CommandError("'%s' format is not managed." % args[1])
frmat = args[1]
while frmat not in ('CSV', 'KML', 'SHP'):
self.stdout.write('Choose a format (CSV, KML or SHP): ')
frmat = input().replace('\n', '')
exporter = EXPORTER[frmat]
cls = None
if args and args[2]:
try:
assert(args[2] in ('marker', 'route'))
except AssertionError:
raise CommandError("Exported item must be 'marker' or 'route'."
% args[1])
if args[2] == 'marker':
cls = Marker
elif args[2] == 'route':
cls = Route
while not cls:
self.stdout.write('Choose an item type:\n 1 - marker\n 2 - route\n')
self.stdout.write('Number: ')
v = input()
if v == '1':
cls = Marker
elif v == '2':
cls = Route
filename = ''
if args and args[3]:
filename = args[3]
else:
self.stdout.write('Filename: ')
filename = input()
response = exporter(None, None, cls.objects.filter(categories=subcat))
try:
with open(filename, 'wb+') as fl:
fl.write(response.content)
except IOError as e:
raise CommandError(e)
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