Create meet from json file

new_meet

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+#!/usr/bin/python3
+
+import base64
+import argparse
+import json
+import os
+
+import psycopg
+import psycopg.rows
+
+import config
+
+db = psycopg.connect(dbname=config.dbname, user=config.dbuser)
+csr = db.cursor(row_factory=psycopg.rows.namedtuple_row)
+
+ap = argparse.ArgumentParser()
+ap.add_argument("file")
+args = ap.parse_args()
+
+with open(args.file) as fh:
+    meet = json.load(fh)
+
+buf = os.urandom(8)
+key = base64.urlsafe_b64encode(buf).replace(b'=', b'').decode('us-ascii')
+
+csr.execute(
+    "insert into meet(title, key) values(%s, %s) returning id",
+    (meet["title"], key,)
+)
+
+meet_id = csr.fetchone().id
+
+for date in meet["dates"]:
+    csr.execute(
+        "insert into date(date, display, meet) values(%s, %s, %s)",
+        (date["date"], date.get("display"), meet_id,)
+    )
+
+for time in meet["times"]:
+    csr.execute(
+        "insert into time(time, display, meet) values(%s, %s, %s)",
+        (time["time"], time.get("display"), meet_id,)
+    )
+
+for place in meet["places"]:
+    csr.execute(
+        "insert into place(name, meet) values(%s, %s)",
+        (place["name"], meet_id,)
+    )
+db.commit()