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129 lines
No EOL
4.2 KiB
Python
129 lines
No EOL
4.2 KiB
Python
# User database abstractions
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import psycopg2
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class UserDatabase:
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def __init__(self, connstr):
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'''
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Sets up the PostgreSQL connection to be used by this instance.
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'''
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self.db = psycopg2.connect(connstr)
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cur = self.db.cursor()
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cur.execute("""
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CREATE TABLE IF NOT EXISTS userdata (
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guild_id BIGINT,
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user_id BIGINT,
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zone TEXT NOT NULL,
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last_active TIMESTAMPTZ NOT NULL DEFAULT now(),
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PRIMARY KEY (guild_id, user_id)
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)""")
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self.db.commit()
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cur.close()
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def update_activity(self, serverid : str, authorid : str):
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'''
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If a user exists in the database, updates their last activity timestamp.
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'''
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c = self.db.cursor()
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c.execute("""
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UPDATE userdata SET last_active = now()
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WHERE guild_id = %s AND user_id = %s
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""", (serverid, authorid))
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self.db.commit()
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c.close()
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def delete_user(self, serverid : str, authorid : str):
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'''
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Deletes existing user from the database.
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'''
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c = self.db.cursor()
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c.execute("""
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DELETE FROM userdata
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WHERE guild_id = %s AND user_id = %s
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""", (serverid, authorid))
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self.db.commit()
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c.close()
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def update_user(self, serverid : str, authorid : str, zone : str):
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'''
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Insert or update user in the database.
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Does not do any sanitizing of incoming values, as only a small set of
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values are allowed anyway. This is enforced by the caller.
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'''
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self.delete_user(serverid, authorid)
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c = self.db.cursor()
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c.execute("""
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INSERT INTO userdata (guild_id, user_id, zone) VALUES
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(%s, %s, %s)
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ON CONFLICT (guild_id, user_id)
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DO UPDATE SET zone = EXCLUDED.zone
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""", (serverid, authorid, zone))
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self.db.commit()
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c.close()
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def get_list(self, serverid, userid=None):
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'''
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Retrieves a list of recent time zones based on
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recent activity per user. For use in the list command.
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'''
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c = self.db.cursor()
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if userid is None:
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c.execute("""
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SELECT zone, count(*) as ct FROM userdata
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WHERE guild_id = %s
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AND last_active >= now() - INTERVAL '72 HOURS' -- only users active in the last 72 hrs
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GROUP BY zone -- separate by popularity
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ORDER BY ct DESC LIMIT 10 -- top 10 zones are given
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""", (serverid))
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else:
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c.execute("""
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SELECT zone, '0' as ct FROM userdata
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WHERE guild_id = %s AND user_id = %s
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""", (serverid, userid))
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results = c.fetchall()
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c.close()
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return [i[0] for i in results]
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def get_list2(self, serverid):
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'''
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Retrieves data for the tz.list command.
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Returns a dictionary. Keys are zone name, values are arrays with user IDs.
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'''
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c = self.db.cursor()
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c.execute("""
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SELECT zone, user_id
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FROM userdata
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WHERE
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last_active >= now() - INTERVAL '72 HOURS' -- only users active in the last 72 hrs
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AND guild_id = %(guild)s
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AND zone in (SELECT zone from (
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SELECT zone, count(*) as ct
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FROM userdata
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WHERE
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guild_id = %(guild)s
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AND last_active >= now() - INTERVAL '72 HOURS'
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GROUP BY zone
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LIMIT 10
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) as pop_zones)
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ORDER BY RANDOM() -- Randomize display order (expected by consumer)
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""", {'guild': serverid})
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result = {}
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for row in c:
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inlist = result.get(row[0])
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if inlist is None:
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result[row[0]] = []
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inlist = result[row[0]]
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inlist.append(row[1])
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c.close()
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return result
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def get_unique_tz_count(self):
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'''
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Gets the number of unique time zones in the database.
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'''
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c = self.db.cursor()
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c.execute('SELECT COUNT(DISTINCT zone) FROM userdata')
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result = c.fetchall()
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c.close()
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return result[0][0] |