mirror of https://github.com/kianby/stacosys
prepare migration script to add ulid column
parent
ccf0b2b688
commit
865472af51
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#!/usr/bin/python
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# -*- coding: UTF-8 -*-
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import sqlite3
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import datetime
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from ulid import ULID
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# add column ulid
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connection = sqlite3.connect("db.sqlite")
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cursor = connection.cursor()
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script = """
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PRAGMA foreign_keys = OFF;
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BEGIN TRANSACTION;
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ALTER TABLE comment ADD ulid INTEGER;
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COMMIT;
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PRAGMA foreign_keys = ON;
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"""
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cursor.executescript(script)
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connection.close()
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# fill in ulid column
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connection = sqlite3.connect("db.sqlite")
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cursor = connection.cursor()
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updates = []
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for row in cursor.execute('SELECT * FROM comment'):
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row_id = row[0]
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string_created = row[2]
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date_created = datetime.datetime.strptime(string_created, "%Y-%m-%d %H:%M:%S")
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ulid = ULID.from_datetime(date_created)
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update = "UPDATE comment SET ulid = " + str(int(ulid)) + " WHERE id = " + str(row_id)
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print(update)
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updates.append(update)
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for update in updates:
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pass
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connection.execute(update)
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connection.commit()
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connection.close()
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