Merge pull request #169 from codl/fix-deadlock

disable autoflush in refresh_posts, fixing deadlocks. closes GH-19

libforget/mastodon.py

@@ -160,7 +160,9 @@ def refresh_posts(posts):
     api = get_api_for_acc(acc)
 
     new_posts = list()
+    with db.session.no_autoflush:
         for post in posts:
+            print('Refreshing {}'.format(post))
             try:
                 status = api.status(post.mastodon_id)
                 new_post = db.session.merge(

tasks.py

@@ -234,7 +234,7 @@ def delete_from_account(account_id):
         Post.query.with_parent(account, 'posts')
         .filter(Post.created_at + account.policy_keep_younger <= db.func.now())
         .filter(~Post.id.in_(db.select((latest_n_posts.c.id, )))).order_by(
-            db.func.random()).limit(100).with_for_update().all())
+            db.func.random()).limit(100).all())
 
     to_delete = None