new_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  from django.db import models, migrations
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
      ]
  
      operations = [
          migrations.CreateModel(
              name='CoverageBoundary',
              fields=[
                  ('id', models.IntegerField(primary_key=True, serialize=False)),
                  ('admin_level', models.IntegerField()),
                  ('name', models.TextField()),
                  ('rank', models.IntegerField()),
                  ('latest_timestamp', models.DateTimeField()),
                  ('oldest_timestamp', models.DateTimeField()),
                  ('coverage', models.FloatField()),
                  ('original_coverage', models.FloatField()),
                  ('total_coverage_gain', models.FloatField()),
                  ('polygon', models.TextField()),
                  ('bbox', models.TextField()),
                  ('parent', models.ForeignKey(to='coverage_score_viewer.CoverageBoundary')),
              ],
              options={
                  'db_table': 'coverage_boundary',
              },
              bases=(models.Model,),
          ),
          migrations.CreateModel(
              name='CoverageScore',
              fields=[
                  ('id', models.IntegerField(primary_key=True, serialize=False)),
                  ('date', models.DateField()),
                  ('coverage', models.FloatField()),
                  ('coverage_boundary', models.ForeignKey(to='coverage_score_viewer.CoverageBoundary')),
              ],
              options={
              },
              bases=(models.Model,),
          ),
      ]
  
subject: Add migration script for coverage scores.