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ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
...POSTing wrapper model and changing the state of one entry to 'Modified'. Before changing the state, the state is set to 'Detached' but calling Attach() does throw the same error. I'm using EF6.
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What does the PHP error message “Notice: Use of undefined constant” mean?
...age = mysql_real_escape_string($_POST['message']);
As is, it was looking for constants called department, name, email, message, etc. When it doesn't find such a constant, PHP (bizarrely) interprets it as a string ('department', etc). Obviously, this can easily break if you do defined such a cons...
How do I use Java to read from a file that is actively being written to?
I have an application that writes information to file. This information is used post-execution to determine pass/failure/correctness of the application. I'd like to be able to read the file as it is being written so that I can do these pass/failure/correctness checks in real time.
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Convert a series of parent-child relationships into a hierarchical tree?
... I'd like to turn into as few heirarchical tree structures as possible. So for example, these could be the pairings:
11 Ans...
Python: try statement in a single line
...hon. In any event, though it's been discussed, there is no one-line syntax for a try/except block. Luckily lines are cheap, so the 4-line solution should work for you. ;-)
– Mike Graham
Mar 26 '10 at 16:40
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Rspec doesn't see my model Class. uninitialized constant error
I'm writing tests on Rspec for my models in Ruby on Rails application.
And I receive this error while starting 'rspec spec'
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Convert a PHP object to an associative array
...dClass;
}
}
var_dump( (array) new Foo );
Output (with \0s edited in for clarity):
array(3) {
'\0Foo\0foo' => int(1)
'\0*\0bar' => int(2)
'baz' => class stdClass#2 (0) {}
}
Output with var_export instead of var_dump:
array (
'' . "\0" . 'Foo' . "\0" . 'foo' => 1,
'' ....
URL Encoding using C#
I have an application which sends a POST request to the VB forum software and logs someone in (without setting cookies or anything).
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Can I create links with 'target=“_blank”' in Markdown?
...ld!</a>
Most Markdown engines I've seen allow plain old HTML, just for situations like this where a generic text markup system just won't cut it. (The StackOverflow engine, for example.) They then run the entire output through an HTML whitelist filter, regardless, since even a Markdown-only ...
ImportError: numpy.core.multiarray failed to import
...
Was in the exact same condition... For me the issue was dual installation of numpy which was in a conflicting version with other libraries and it was shadowing the correct numpy version installed by conda. Solution: pip uninstall numpy ... this removed the f...