68 lines
2.7 KiB
Python
68 lines
2.7 KiB
Python
from django.core.management.base import BaseCommand
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from django.contrib.gis.utils import LayerMapping
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from glob import iglob
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from pathlib import Path
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from zipfile import ZipFile, is_zipfile
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import right_tree.api.data
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from right_tree.api.models import SoilLayer, EcologicalDistrictLayer, ChristchurchRegion
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# Auto-generated `LayerMapping` dictionary for SoilLayers model
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soillayer_mapping = {
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'nzsc_class': 'nzsc_class',
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'nzsc_group': 'nzsc_group',
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'nzsc_order': {'code': 'nzsc_order'},
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'shape_leng': 'SHAPE_Leng',
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'geom': 'POLYGON',
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}
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# Auto-generated `LayerMapping` dictionary for ecologicaldistrictlayer model
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ecologicaldistrictlayer_mapping = {
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'ecological': 'ECOLOGICAL',
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'ecologic_1': 'ECOLOGIC_1',
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'ecologic_2': {'name': 'ECOLOGIC_2'},
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'shape_leng': 'SHAPE_Leng',
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'shape_area': 'SHAPE_Area',
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'geom': 'POLYGON',
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}
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# Auto-generated `LayerMapping` dictionary for ChristchurchRegion model
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christchurchregion_mapping = {
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'objectid': 'OBJECTID',
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'name': 'NAME',
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'geom': 'MULTIPOLYGON',
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}
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resources_path = Path(right_tree.api.data.__file__).resolve().parent / "resources"
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soillayer_shp = resources_path / "fundamental-soil-layers-new-zealand-soil-classification.shp"
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ecologicaldistrictlayer_shp = resources_path / "Ecological_Districts.shp"
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christchurchregion_shp = resources_path / "Greater_Christchurch_Area.shp"
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class Command(BaseCommand):
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help = 'Ingests the shapefile data for ecological regions and soil layers.'
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def handle(self, *args, **options):
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query = str(resources_path / "*.zip")
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sources = [ZipFile(path) for path in iglob(query) if is_zipfile(path)]
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for zf in sources:
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zf.extractall(resources_path)
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zf.close()
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self.stdout.write('Loading soil layers...')
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soil_lm = LayerMapping(SoilLayer, soillayer_shp, soillayer_mapping, transform=False)
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soil_lm.save(strict=True)
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self.stdout.write(self.style.SUCCESS('Soil layers loaded succesfully.'))
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self.stdout.write('Loading ecological district layers...')
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ecologicaldistrictlayer_lm = LayerMapping(EcologicalDistrictLayer, ecologicaldistrictlayer_shp, ecologicaldistrictlayer_mapping, transform=False)
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ecologicaldistrictlayer_lm.save(strict=True)
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self.stdout.write(self.style.SUCCESS('Ecological district layers loaded succesfully.'))
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self.stdout.write('Loading christchurch zone layer...')
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christchurchregionlayer_lm = LayerMapping(ChristchurchRegion, christchurchregion_shp, christchurchregion_mapping, transform=False)
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christchurchregionlayer_lm.save(strict=True)
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self.stdout.write(self.style.SUCCESS(' Christchurch zone layer loaded succesfully.'))
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