this repo has no description
feat: resurrect popular
+33
-65
+1
-1
feed_manager.py
+1
-1
feed_manager.py
···
47
47
48
48
feed_manager = FeedManager()
49
49
feed_manager.register(RapidFireFeed)
50
-
# feed_manager.register(PopularFeed)
50
+
feed_manager.register(PopularFeed)
51
51
feed_manager.register(HomeRunsTeamFeed)
52
52
feed_manager.register(NoraZoneInteresting)
53
53
feed_manager.register(SevenDirtyWordsFeed)
+32
-64
feeds/popular.py
+32
-64
feeds/popular.py
···
9
9
FEED_URI = 'at://did:plc:4nsduwlpivpuur4mqkbfvm6a/app.bsky.feed.generator/popular'
10
10
11
11
def __init__(self):
12
-
self.db_cnx = apsw.Connection('db/popular.db')
12
+
# use the posts from the most-liked feed for this
13
+
self.db_cnx = apsw.Connection('db/mostliked.db')
14
+
self.db_cnx.pragma('foreign_keys', True)
13
15
self.db_cnx.pragma('journal_mode', 'WAL')
14
-
self.db_cnx.pragma('wal_autocheckpoint', '0')
15
-
16
-
with self.db_cnx:
17
-
self.db_cnx.execute("""
18
-
create table if not exists posts (uri text, create_ts timestamp, update_ts timestamp, temperature int);
19
-
create unique index if not exists uri_idx on posts(uri);
20
-
""")
21
-
22
-
self.logger = logging.getLogger('feeds.popular')
23
16
24
17
def process_commit(self, commit):
25
-
if commit['opType'] != 'c':
26
-
return
27
-
28
-
if commit['collection'] != 'app.bsky.feed.like':
29
-
return
30
-
31
-
record = commit.get('record')
32
-
if record is None:
33
-
return
34
-
35
-
ts = self.safe_timestamp(record.get('createdAt')).timestamp()
36
-
like_subject_uri = record['subject']['uri']
37
-
38
-
self.transaction_begin(self.db_cnx)
18
+
pass
39
19
40
-
self.db_cnx.execute("""
41
-
insert into posts (uri, create_ts, update_ts, temperature)
42
-
values (:uri, :ts, :ts, 1)
43
-
on conflict (uri) do update set temperature = temperature + 1, update_ts = :ts
44
-
""", dict(uri=like_subject_uri, ts=ts))
20
+
def commit_changes(self):
21
+
pass
45
22
46
-
def delete_old_posts(self):
47
-
self.db_cnx.execute("""
48
-
delete from posts
23
+
def generate_sql(self, limit, offset, langs):
24
+
bindings = []
25
+
sql = """
26
+
select posts.uri, create_ts, likes, lang, unixepoch('now') - create_ts as age_seconds,
27
+
exp( -1 * ( ( unixepoch('now') - create_ts ) / 1800.0 ) ) as decay,
28
+
likes * exp( -1 * ( ( unixepoch('now') - create_ts ) / 1800.0 ) ) as score
29
+
from posts
30
+
left join langs on posts.uri = langs.uri
49
31
where
50
-
temperature * exp( -1 * ( ( unixepoch('now') - create_ts ) / 1800.0 ) ) < 1.0
51
-
and create_ts < unixepoch('now', '-15 minutes')
52
-
""")
53
-
self.logger.debug('deleted {} old posts'.format(self.db_cnx.changes()))
54
-
55
-
def commit_changes(self):
56
-
self.delete_old_posts()
57
-
self.logger.debug('committing changes')
58
-
self.transaction_commit(self.db_cnx)
59
-
self.wal_checkpoint(self.db_cnx, 'RESTART')
32
+
"""
33
+
if not '*' in langs:
34
+
lang_values = list(langs.values())
35
+
bindings.extend(lang_values)
36
+
sql += " OR ".join(['lang = ?'] * len(lang_values))
37
+
else:
38
+
sql += " 1=1 "
39
+
sql += """
40
+
order by score desc
41
+
limit ? offset ?
42
+
"""
43
+
bindings.extend([limit, offset])
44
+
return sql, bindings
60
45
61
46
def serve_feed(self, limit, offset, langs):
62
-
cur = self.db_cnx.execute("""
63
-
select uri from posts
64
-
order by temperature * exp( -1 * ( ( unixepoch('now') - create_ts ) / 1800.0 ) )
65
-
desc limit :limit offset :offset
66
-
""", dict(limit=limit, offset=offset))
67
-
return [uri for (uri,) in cur]
47
+
sql, bindings = self.generate_sql(limit, offset, langs)
48
+
cur = self.db_cnx.execute(sql, bindings)
49
+
return [row[0] for row in cur]
68
50
69
51
def serve_feed_debug(self, limit, offset, langs):
70
-
query = """
71
-
select
72
-
uri, temperature,
73
-
unixepoch('now') - create_ts as age_seconds,
74
-
exp(
75
-
-1 * ( ( unixepoch('now') - create_ts ) / 1800.0 )
76
-
) as decay,
77
-
temperature * exp(
78
-
-1 * ( ( unixepoch('now') - create_ts ) / 1800.0 )
79
-
) as score
80
-
from posts
81
-
order by score desc
82
-
limit :limit offset :offset
83
-
"""
84
-
bindings = dict(limit=limit, offset=offset)
52
+
sql, bindings = self.generate_sql(limit, offset, langs)
85
53
return apsw.ext.format_query_table(
86
-
self.db_cnx, query, bindings,
54
+
self.db_cnx, sql, bindings,
87
55
string_sanitize=2, text_width=9999, use_unicode=True
88
56
)