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python-itho-wpu/convert-itho-db.py
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2021-05-30 14:52:24 +02:00

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Python
Executable File

#!/usr/bin/env python3
#
# Convert the required data for python-itho-wpu from Itho Servicetool
# $_parameters_HeatPump.par (Microsoft Access database) to SQLite SQL.
#
# Dependencies: python3-pyodbc, mdbtools (>= 0.9.0), odbc-mdbtools (>= 0.9.0)
import argparse
import db
import os
import pyodbc
import re
import sys
def parse_args():
parser = argparse.ArgumentParser(
formatter_class=argparse.ArgumentDefaultsHelpFormatter,
description="Convert Itho Servicetool database to SQLite",
)
parser.add_argument("--itho-db", nargs="?", required=True, help="Itho Database file")
parser.add_argument(
"--sqlite-db", nargs="?", default="heatpump.sqlite", help="Itho Database file"
)
parser.add_argument("--force", action="store_true", help="Force overwrite SQLite database")
args = parser.parse_args()
return args
def convert(par_file, sqlite_db):
par_file = par_file.replace("$", "\\$")
par_conn = pyodbc.connect(f"DRIVER={{MDBTools}};DBQ={par_file};")
par_conn.setencoding("UTF-8")
par_conn.setdecoding(pyodbc.SQL_CHAR, encoding="UTF-8")
par_cur = par_conn.cursor()
sqlite_db = db.sqlite(sqlite_db)
tables = []
for table_info in par_cur.tables(tableType="TABLE"):
if re.match("^(VersieBeheer|Data[Ll]abel|Parameterlijst)", table_info.table_name):
tables.append(table_info.table_name)
for t in sorted(tables):
sqlite_db.create_table(t.lower())
data = []
if re.match("^Data[Ll]abel", t):
par_cur.execute(f"select Index, Naam, Tekst_NL, Tooltip_NL, Eenheid_NL from {t}")
rows = par_cur.fetchall()
for r in sorted(rows):
data.append((r.Index, r.Naam, r.Tekst_NL, r.Tooltip_NL, r.Eenheid_NL))
if re.match("^Parameterlijst", t):
par_cur.execute(
"select Index, Naam, Naam_fabriek, Min, Max, Default, "
f"Tekst_NL, Omschrijving_NL, Eenheid_NL from {t}"
)
rows = par_cur.fetchall()
for r in sorted(rows):
data.append(
(
r.Index,
r.Naam,
r.Naam_fabriek,
r.Min,
r.Max,
r.Default,
r.Tekst_NL,
r.Omschrijving_NL,
r.Eenheid_NL,
)
)
if re.match("^VersieBeheer", t):
par_cur.execute(f"select VersieNummer, DataLabel, ParameterLijst from {t}")
rows = par_cur.fetchall()
for r in sorted(rows):
data.append((r.VersieNummer, r.DataLabel, r.ParameterLijst))
sqlite_db.insert(t.lower(), data)
if __name__ == "__main__":
args = parse_args()
print(f"Converting {args.itho_db} to {args.sqlite_db} ...")
if not os.path.exists(args.itho_db):
print(f"Itho database does not exist: {args.itho_db}")
sys.exit(1)
if os.path.exists(args.sqlite_db):
if args.force:
print(f"Removing existing SQLite database: {args.sqlite_db}")
os.remove(args.sqlite_db)
else:
print(f"Error: SQLite database exists: {args.sqlite_db}")
sys.exit(1)
convert(args.itho_db, args.sqlite_db)