# -*- coding: utf-8 -*- from __future__ import unicode_literals from django.db import migrations, models import settings def populate_plan(apps, schema_editor): Release = apps.get_model('rrs', 'Release') MaintenancePlan = apps.get_model('rrs', 'MaintenancePlan') LayerBranch = apps.get_model('layerindex', 'LayerBranch') MaintenancePlanLayerBranch = apps.get_model('rrs', 'MaintenancePlanLayerBranch') if Release.objects.all().exists(): if not settings.CORE_LAYER_NAME: raise Exception('Please set CORE_LAYER_NAME in settings.py') core_layerbranch = LayerBranch.objects.filter(layer__name=settings.CORE_LAYER_NAME).first() if not core_layerbranch: raise Exception('Unable to find core layer "%s" specified in CORE_LAYER_NAME in settings.py - please set up the layerindex application first' % settings.CORE_LAYER_NAME) maintplan = MaintenancePlan() maintplan.name = 'Default' maintplan.description = 'Created upon database upgrade' maintplan.save() for row in Release.objects.all(): row.plan = maintplan row.save() maintplanlayerbranch = MaintenancePlanLayerBranch(plan=maintplan, layerbranch=core_layerbranch) maintplanlayerbranch.save(); class Migration(migrations.Migration): dependencies = [ ('rrs', '0003_release_plan'), ] operations = [ migrations.RunPython(populate_plan, reverse_code=migrations.RunPython.noop), ]