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Unique Key constraints for multiple columns in Entity Framework
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@JJS - I got it to work where one of the properties was a foreign key.. by any chance is your key a varchar or nvarchar? There is a limit to the length of which can be used as a unique key.. stackoverflow.com/questions/2863993/…
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How can I check if a directory exists in a Bash shell script?
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One thing to keep in mind: [ ! -d "$DIRECTORY" ] will be true either if $DIRECTORY doesn't exist, or if does exist but isn't a directory. Consider something like if [ ! -d "$DIRECTORY" ] ; then mkdir "$DIRECTORY" ; fi; this ...
Best practices to test protected methods with PHPUnit
... So here, you would have to test the protected method (But never a private one). The solution to this, is to create a subclass for testing purpose, and use this to expose the methods. Eg.:
class Foo {
protected function stuff() {
// secret stuff, you want to test
}
}
class SubFoo extends F...
How to check if a Constraint exists in Sql server?
...nding other "constraints" here are some other queries for that:
--Returns one row for each CHECK, UNIQUE, PRIMARY KEY, and/or FOREIGN KEY
SELECT *
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS
WHERE CONSTRAINT_NAME='XYZ'
--Returns one row for each FOREIGN KEY constrain
SELECT *
FROM I...
Eclipse git checkout (aka, revert)
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This can be done via the context menu "Replace with/File in Git index" on the file in package view.
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How to generate and validate a software license key?
...aveat: you can't prevent users from pirating, but only make it easier for honest users to do the right thing.
Assuming you don't want to do a special build for each user, then:
Generate yourself a secret key for the product
Take the user's name
Concatentate the users name and the secret key and h...
What is the most compatible way to install python modules on a Mac?
...xtra Python library in your home dir. Yes, Python will work with more than one library location: one controlled by MacPorts and a user local one for everything missing within MacPorts.
Now notice that I favor pip over easy_install. There is a good reason you should avoid setuptools and easy_install...
How to remove the lines which appear on file B from another file A?
I have a large file A (consisting of emails), one line for each mail. I also have another file B that contains another set of mails.
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NodeJS - What does “socket hang up” actually mean?
...a certain website I'm getting the following error (it only happens on this one website, no others that I try to scrape.
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What is data oriented design?
I was reading this article , and this guy goes on talking about how everyone can greatly benefit from mixing in data oriented design with OOP. He doesn't show any code samples, however.
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