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7b3095d6ff
* Fix examples charts/dashboards and refactor * pylinting * Fix pylint * Lint the refactor * Rebased
41 lines
1.1 KiB
Python
41 lines
1.1 KiB
Python
import gzip
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import json
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import os
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import pandas as pd
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from sqlalchemy import BigInteger, Text
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from superset import db
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from superset.utils import core as utils
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from .helpers import DATA_FOLDER, TBL
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def load_sf_population_polygons():
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tbl_name = 'sf_population_polygons'
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with gzip.open(os.path.join(DATA_FOLDER, 'sf_population.json.gz')) as f:
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df = pd.read_json(f)
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df['contour'] = df.contour.map(json.dumps)
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df.to_sql(
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tbl_name,
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db.engine,
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if_exists='replace',
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chunksize=500,
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dtype={
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'zipcode': BigInteger,
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'population': BigInteger,
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'contour': Text,
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'area': BigInteger,
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},
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index=False)
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print('Creating table {} reference'.format(tbl_name))
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tbl = db.session.query(TBL).filter_by(table_name=tbl_name).first()
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if not tbl:
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tbl = TBL(table_name=tbl_name)
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tbl.description = 'Population density of San Francisco'
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tbl.database = utils.get_or_create_main_db()
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db.session.merge(tbl)
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db.session.commit()
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tbl.fetch_metadata()
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