# Generated by Django 2.1.15 on 2021-11-01 14:37
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from django.db import migrations, models
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import rasterio
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import os
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from app.pointcloud_utils import is_pointcloud_georeferenced
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from webodm import settings
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def update_epsg_fields(apps, schema_editor):
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Task = apps.get_model('app', 'Task')
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for t in Task.objects.all():
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epsg = None
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for asset in [os.path.join('odm_orthophoto', 'odm_orthophoto.tif'),
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os.path.join('odm_dem', 'dsm.tif'),
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os.path.join('odm_dem', 'dtm.tif')]:
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asset_path = os.path.join(settings.MEDIA_ROOT, "project", str(t.project.id), "task", str(t.id), "assets", asset)
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if os.path.isfile(asset_path):
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try:
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with rasterio.open(asset_path) as f:
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if f.crs is not None:
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epsg = f.crs.to_epsg()
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break # We assume all assets are in the same CRS
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except Exception as e:
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print(e)
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# If point cloud is not georeferenced, dataset is not georeferenced
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# (2D assets might be using pseudo-georeferencing)
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point_cloud = os.path.join(settings.MEDIA_ROOT, "project", str(t.project.id), "task", str(t.id), "assets", "odm_georeferencing", "odm_georeferenced_model.laz")
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if epsg is not None and os.path.isfile(point_cloud):
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if not is_pointcloud_georeferenced(point_cloud):
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print("{} is not georeferenced".format(t))
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epsg = None
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print("Updating {} (with epsg: {})".format(t, epsg))
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t.epsg = epsg
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t.save()
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def remove_all_zip(apps, schema_editor):
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Task = apps.get_model('app', 'Task')
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for t in Task.objects.all():
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asset = 'all.zip'
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asset_path = os.path.join(settings.MEDIA_ROOT, "project", str(t.project.id), "task", str(t.id), "assets", asset)
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if os.path.isfile(asset_path):
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try:
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os.remove(asset_path)
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print("Cleaned up {}".format(asset_path))
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except Exception as e:
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print(e)
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class Migration(migrations.Migration):
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dependencies = [
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('app', '0031_auto_20210610_1850'),
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]
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operations = [
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migrations.AddField(
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model_name='task',
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name='epsg',
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field=models.IntegerField(blank=True, default=None, help_text='EPSG code of the dataset (if georeferenced)', null=True, verbose_name='EPSG'),
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),
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migrations.RunPython(update_epsg_fields),
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migrations.RunPython(remove_all_zip),
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]
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