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Is is possible to check if an object is already attached to a data context in Entity Framework?
...ties refer to the same entity. I haven't figure out how to only attach the base entity, so I had to redesign the project a bit, to use separate contexts for each "business transaction", like it was designed for. I'll note this for future projects.
– Aske B.
Jan...
Running a cron every 30 seconds
... executing the "meat" of the job, /path/to/executable.
For other (non-cron-based) options, see the other answers here, particularly the ones mentioning fcron and systemd. These are probably preferable assuming your system has the ability to use them (such as installing fcron or having a distro with ...
git --git-dir not working as expected
...d ../..; git grep foo)
for d in d1 d2 d3; do (cd $d && git svn rebase); done
The methods shown above are acceptable for scripting but are too cumbersome for quick command line invocations.
With this new option, the above can be done with fewer keystrokes:
git -C ~/foo ...
Detecting that the browser has no mouse and is touch-only
...at works smoothly no matter the context of the user. Then make assumptions based on browser features/media queries to add functionality that will be relative in the assumed context. Presence of a mouse is just one of the multitudes of ways in which different users on different devices experience you...
conditional unique constraint
...HECK constraint "CheckActiveCountConstraint". The conflict occurred in database "TestSchema", table "dbo.CheckConstraint".
INSERT INTO CheckConstraint VALUES (2, 'Oh no!', 1);
SELECT * FROM CheckConstraint;
-- Id Name RecordStatus
-- ---- ------------ ------------
-- 1 No Problems 2
-...
What components are MVC in JSF MVC framework?
...nput from the user and instructs the model and viewport to perform actions based on that input." I doubt that FacesServlet "instructs the model", does it?
– yegor256
Feb 24 '11 at 12:13
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The purpose of Model View Projection Matrix
...u think of it deeply, you'll realise that eventhough the transformation is based on an object's origin (i.e. single point), all the vertices of the object (mesh/model formally) will undergo the transformation i.e. all 1000 vertices will be multiplied by the model matrix. Hence your point isn't well-...
C# DLL config file
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Background: I want to have my DAL.dll to have its own config file for database and DAL settings. I also need the app.config for Enterprise Library and its own configurations. So I need both the app.config and dll.config.
What I did not wanted to do is pass-through every property/setting from the a...
After array_filter(), how can I reset the keys to go in numerical order starting at 0
...
array_filter() behaves exactly like you'd expect based on what it says in the manual: php.net/manual/en/function.array-filter.php "If no callback is supplied, all entries of array equal to FALSE (see converting to boolean) will be removed." And it should be common knowledg...
How the single threaded non blocking IO model works in Node.js
... as most of the time is actually spent on waiting for network or disk (database / sockets) and the logic is not really CPU intensive - that is to say: this works well for IO-bound workloads.
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