61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
from re import M
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import sqlite3
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from datetime import datetime
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import click
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from flask import current_app, g
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def log(statement, user_id, before, after, change):
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db = get_db()
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c = db.cursor()
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c.execute("INSERT INTO transaction_log (timestamp, type, user_id, before, after, change) VALUES (?, ?, ?, ?, ?, ?)", [datetime.now(), statement, user_id, before, after, change])
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db.commit()
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def change_db(statement, user_id=None, before=None, after=None, change=None):
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db = get_db()
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c = db.cursor()
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if statement == "adduser" and after != None:
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c.execute("INSERT or IGNORE INTO users (username, balance) VALUES (?, 0)", [after])
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user_id = c.lastrowid
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elif statement == "removeuser" and user_id != None and before != None:
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c.execute("DELETE FROM tags WHERE userid=?", [user_id])
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c.execute("DELETE FROM users WHERE id=?", [user_id])
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elif statement == "addtag" and after != None and user_id != None:
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c.execute("INSERT OR IGNORE INTO tags (tagid, userid) VALUES ?, ?)", [after, user_id])
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elif statement == "removetag" and before != None and user_id != None:
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c.execute("DELETE FROM tags WHERE (tagid = ? AND userid = ?)", [before, user_id])
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elif statement == "balance" and change != None and user_id != None:
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c.execute("UPDATE users SET balance = balance + ? WHERE id=?", [change, user_id])
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else:
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raise Exception("wrong or missing argument for change_db")
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log(statement, user_id, before, after, change)
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db.commit()
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def get_db():
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if 'db' not in g:
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g.db = sqlite3.connect(
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current_app.config['DATABASE'],
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detect_types=sqlite3.PARSE_DECLTYPES
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)
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g.db.row_factory = sqlite3.Row
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init_db()
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return g.db
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def close_db(e=None):
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db = g.pop('db', None)
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if db is not None:
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db.close()
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def init_db():
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db = get_db()
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with current_app.open_resource('schema.sql') as f:
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db.executescript(f.read().decode('utf8'))
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@click.command('init-db')
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def init_db_command():
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"""Clear the existing data and create new tables."""
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init_db()
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click.echo('Initialized the database.')
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