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How to check if a user is logged in (how to properly use user.is_authenticated)?
... uses real life syntax in it so that it can be quickly taken in by someone new to a project like Django, just a pet peeve I guess as I tend to skim through things but I realize I should have looked closer, thanks for the help
– Rick
Sep 7 '10 at 7:24
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Different types of thread-safe Sets in Java
... Just a sight correction in 1), the process of copying data into the new array must be locked down by synchronizing. Therefore, CopyOnWriteArraySet doesn't totally avoid the necessity of synchronization.
– CaptainHastings
Jun 5 '15 at 13:07
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Status bar won't disappear
...The code you posted works for iOS 6.1 and below. For iOS 7, Apple has made new methods available to directly control the status bar for each view. Turning off this option in your Info.plist will enable you to hide the status bar, at least for the current Developer Preview (4).
For reference, plea...
Can I make fast forwarding be off by default in git?
... eventually found switching fast-forward to off was mostly helpful for git newcomers - however once the feel for workflows and concepts start to sink in you definitely want to avoid blurring your log graph with tons of pointless 'merged remote ..blarf' type commits.
Footnote 2, a decade later: the ...
C++ sorting and keeping track of indexes
...n ascending order, but I also want to remember the original indexes of the new samples.
15 Answers
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Java 8: performance of Streams vs Collections
I'm new to Java 8. I still don't know the API in depth, but I've made a small informal benchmark to compare the performance of the new Streams API vs the good old Collections.
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How do I do a not equal in Django queryset filtering?
...;> from django.db.models import Q
>>> Entry.objects.filter(~Q(id = 3))
[<Entry: Entry object>, <Entry: Entry object>, <Entry: Entry object>, ...]
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How to hide the title bar for an Activity in XML with existing custom theme
...itleBar" because I lost all of the 3.0+ Holo changes that the users of the new devices have gotten used to. So I came across this solution.
In your res/values folder make a file called styles.xml (If it doesn't already exist). In that file place the following code:
<resources xmlns:android="h...
How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
... unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
Initialize a new 10.1 database:
initdb /usr/local/var/postgres10.1 -E utf8
run pg_upgrade (note: change bin version if you're upgrading from something other than below):
pg_upgrade -v \
-d /usr/local/var/postgres \
-D /usr/local...
Spring schemaLocation fails when there is no internet connection
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I think the new "Registering the handler and the schema" link should be here: docs.spring.io/spring/docs/current/spring-framework-reference/…
– Dirk
Jul 14 '15 at 20:23
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