Source code for nsaph.util.init_core_db

"""
Initializes Database with core tables, functions and procedures
"""

#  Copyright (c) 2022. Harvard University
#
#  Developed by Research Software Engineering,
#  Faculty of Arts and Sciences, Research Computing (FAS RC)
#  Author: Michael A Bouzinier
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
#
import os
from argparse import ArgumentParser
from pathlib import Path

from nsaph.util.pg_json_dump import ensure

from nsaph.db import Connection


[docs]def load_data(args): with Connection(args.db, args.connection) as db: print("Loading us_states") ensure(db, "us_states") print("Loading us_iso") ensure(db, "us_iso") db.commit() print("Loading SSA <-> FIPS Mapping") ensure(db, "ssa") db.commit() print("Loading FIPS <-> ZIP Mapping (hud_zip2fips)") ensure(db, "hud_zip2fips") db.commit() return
[docs]def execute(args, sql_file: str): print("Executing: " + sql_file) with open(sql_file) as reader: lines = [line for line in reader] sql = ''.join(lines) with Connection(args.db, args.connection) as cnxn: with cnxn.cursor() as cursor: cursor.execute(sql) cnxn.commit()
[docs]def get_sql_dir(me: str) -> str: ppp = Path(me).parts n = len(ppp) - 1 while n > 0: if ppp[n] == "python": break if ppp[n] in ["site-packages", "dist-packages"]: n += 2 break n -= 1 if n < 1: raise SystemError("Cannot locate source code root") root = os.path.join(*(ppp[:n])) return os.path.join(root, "sql")
[docs]def init_core(args): sdir = get_sql_dir(__file__) load_data(args) execute(args, os.path.join(sdir, "utils.sql")) execute(args, os.path.join(sdir, "zip2fips.sql"))
[docs]def parse_args(): parser = ArgumentParser (description="Init database resources") parser.add_argument("--db", help="Path to a database connection parameters file", default="database.ini", required=True) parser.add_argument("--connection", help="Section in the database connection parameters file", default="nsaph2", required=True) return parser.parse_args()
if __name__ == '__main__': arguments = parse_args() init_core(arguments)