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Wait for all promises to resolve
... Can you show us your code (maybe ask a new question)? Are there items appended to the chain after Q.all was executed - otherwise it should be trivial?
– Bergi
Feb 13 '14 at 18:46
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Django - what is the difference between render(), render_to_response() and direct_to_template()?
...late[, dictionary][, context_instance][, content_type][, status][, current_app])
render() is a brand spanking new shortcut for render_to_response in 1.3 that will automatically use RequestContext that I will most definitely be using from now on.
2020 EDIT: It should be noted that render_to_resp...
Best way for a 'forgot password' implementation? [closed]
...
Update: revised in May 2013 for a better approach
The user enters his username and hits "forgot password". I also recommend the option of entering the email address instead of the username, because usernames are sometimes forgotten too.
The system has a table pass...
Why is there no xrange function in Python3?
...ments, using timeit instead of trying to do it manually with time.
First, Apple 2.7.2 64-bit:
In [37]: %timeit collections.deque((x for x in xrange(10000000) if x%4 == 0), maxlen=0)
1 loops, best of 3: 1.05 s per loop
Now, python.org 3.3.0 64-bit:
In [83]: %timeit collections.deque((x for x in ...
How can I call a custom Django manage.py command directly from a test driver?
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The opening paragraph applies to any boundary situation. Move your own biz logic code out of the code that's constrained to interface with something, such as a user. However, if you write the line of code, it could have a bug, so tests should inde...
Fragment transaction animation: slide in and slide out
... works only when using support fragments (android.support.v4.app.Fragment)
– Aviv Ben Shabat
Feb 9 '16 at 7:20
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Small Haskell program compiled with GHC into huge binary
...braries are copied in verbatim.
Aside: since this is a graphics-intensive app, I'd definitely compile with ghc -O2
There's two things you can do.
Stripping symbols
An easy solution: strip the binary:
$ strip A
$ du -hs A
5.8M A
Strip discards symbols from the object file. They are generall...
What is the difference between Non-Repeatable Read and Phantom Read?
...solation level to be used?
What isolation level you need depends on your application. There is a high cost to a "better" isolation level (such as reduced concurrency).
In your example, you won't have a phantom read, because you select only from a single row (identified by primary key). You can ha...
Catching java.lang.OutOfMemoryError?
...se resources and close down in a clean fashion. What's the worst that can happen? The JVM is dying (or already dead) anyway and by catching the Error there is at least a chance of cleanup.
The caveat is that you have to target the catching of these types of errors only in places where cleanup is po...
When should you NOT use a Rules Engine? [closed]
...g., on the order of thousands of rules in a single rule set). This often happens when the rules engine is a singleton sitting in the center of the enterprise in the hope that keeping rules DRY will make them accessible to many apps that require them. I would defy anyone to tell me that a Rete rule...