superset2/superset/examples/unicode_test_data.py

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#
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import datetime
import json
import random

import pandas as pd
from sqlalchemy import Date, Float, String

from superset import db
from superset.utils import core as utils
from .helpers import (
    config,
    Dash,
    get_example_data,
    get_slice_json,
    merge_slice,
    Slice,
    TBL,
    update_slice_ids,
)


def load_unicode_test_data(only_metadata=False, force=False):
    """Loading unicode test dataset from a csv file in the repo"""
    tbl_name = "unicode_test"
    database = utils.get_example_database()
    table_exists = database.has_table_by_name(tbl_name)

    if not only_metadata and (not table_exists or force):
        data = get_example_data(
            "unicode_utf8_unixnl_test.csv", is_gzip=False, make_bytes=True
        )
        df = pd.read_csv(data, encoding="utf-8")
        # generate date/numeric data
        df["dttm"] = datetime.datetime.now().date()
        df["value"] = [random.randint(1, 100) for _ in range(len(df))]
        df.to_sql(  # pylint: disable=no-member
            tbl_name,
            database.get_sqla_engine(),
            if_exists="replace",
            chunksize=500,
            dtype={
                "phrase": String(500),
                "short_phrase": String(10),
                "with_missing": String(100),
                "dttm": Date(),
                "value": Float(),
            },
            index=False,
        )
        print("Done loading table!")
        print("-" * 80)

    print("Creating table [unicode_test] reference")
    obj = db.session.query(TBL).filter_by(table_name=tbl_name).first()
    if not obj:
        obj = TBL(table_name=tbl_name)
    obj.main_dttm_col = "dttm"
    obj.database = database
    db.session.merge(obj)
    db.session.commit()
    obj.fetch_metadata()
    tbl = obj

    slice_data = {
        "granularity_sqla": "dttm",
        "groupby": [],
        "metric": {
            "aggregate": "SUM",
            "column": {"column_name": "value"},
            "expressionType": "SIMPLE",
            "label": "Value",
        },
        "row_limit": config.get("ROW_LIMIT"),
        "since": "100 years ago",
        "until": "now",
        "where": "",
        "viz_type": "word_cloud",
        "size_from": "10",
        "series": "short_phrase",
        "size_to": "70",
        "rotation": "square",
        "limit": "100",
    }

    print("Creating a slice")
    slc = Slice(
        slice_name="Unicode Cloud",
        viz_type="word_cloud",
        datasource_type="table",
        datasource_id=tbl.id,
        params=get_slice_json(slice_data),
    )
    merge_slice(slc)

    print("Creating a dashboard")
    dash = db.session.query(Dash).filter_by(slug="unicode-test").first()

    if not dash:
        dash = Dash()
    js = """\
{
    "CHART-Hkx6154FEm": {
        "children": [],
        "id": "CHART-Hkx6154FEm",
        "meta": {
            "chartId": 2225,
            "height": 30,
            "sliceName": "slice 1",
            "width": 4
        },
        "type": "CHART"
    },
    "GRID_ID": {
        "children": [
            "ROW-SyT19EFEQ"
        ],
        "id": "GRID_ID",
        "type": "GRID"
    },
    "ROOT_ID": {
        "children": [
            "GRID_ID"
        ],
        "id": "ROOT_ID",
        "type": "ROOT"
    },
    "ROW-SyT19EFEQ": {
        "children": [
            "CHART-Hkx6154FEm"
        ],
        "id": "ROW-SyT19EFEQ",
        "meta": {
            "background": "BACKGROUND_TRANSPARENT"
        },
        "type": "ROW"
    },
    "DASHBOARD_VERSION_KEY": "v2"
}
    """
    dash.dashboard_title = "Unicode Test"
    pos = json.loads(js)
    update_slice_ids(pos, [slc])
    dash.position_json = json.dumps(pos, indent=4)
    dash.slug = "unicode-test"
    dash.slices = [slc]
    db.session.merge(dash)
    db.session.commit()