aprs_tool/test_db.py

# Learn how to update database

import sqlite3

def get_db_connection():
    conn = sqlite3.connect('database.db')
    conn.row_factory = sqlite3.Row
    return conn

conn = get_db_connection()

# Grab a random row from frames table and pretend it is new
cur = conn.cursor()
cur.execute("SELECT [from], id, created_unix FROM frames ORDER BY RANDOM() LIMIT 1;")
rows = cur.fetchall()
results = dict(rows[0])
values = ', '.join('"%s"' % w for w in results.values())


# Build query
# "from" is wrappedin [] because it is a reserved word and using '' doesn't work.
query3 = "INSERT INTO stations ([from], frames_id, last_heard_unix, count) \
VALUES("+values+", 1) \
ON CONFLICT([from]) \
DO UPDATE SET count = count + 1;"

# example https://stackoverflow.com/a/50718957/2152245
# query2 = "INSERT INTO stations ([from], frames_id, last_heard_unix, count) \
# VALUES('KC9TZN-8', 4068, 1687623864, 1) \
# ON CONFLICT([from]) \
# DO UPDATE SET count = count + 1;"

conn.execute(query3)
conn.commit()
conn.close()