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The model backing the context has changed since the database was created
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Now it's:
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
Database.SetInitializer<YourDbContext>(null);
base.OnModelCreating(modelBuilder);
}
in your YourDbContext.cs file.
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How do you unit test private methods?
I'm building a class library that will have some public & private methods. I want to be able to unit test the private methods (mostly while developing, but also it could be useful for future refactoring).
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Ruby on Rails production log rotation
...otate
You can configure rails, to use the systems log tools.
An example in config/environments/production.rb.
# Use a different logger for distributed setups
config.logger = SyslogLogger.new
That way, you log to syslog, and can use default logrotate tools to rotate the logs.
Option 2: normal...
How do I add comments to package.json for npm install?
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This has recently been discussed in the node.js mailing list.
According to Isaac Schlueter who created npm:
... the "//" key will never be used by npm for any purpose, and is reserved for comments ... If you want to use a multiple line comment, you can ...
Pandas DataFrame Groupby two columns and get counts
I have a pandas dataframe in the following format:
6 Answers
6
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How to print like printf in Python3?
In Python 2 I used:
9 Answers
9
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C: differences between char pointer and array [duplicate]
...ence. Essentially, the former:
char amessage[] = "now is the time";
Defines an array whose members live in the current scope's stack space, whereas:
char *pmessage = "now is the time";
Defines a pointer that lives in the current scope's stack space, but that references memory elsewhere (in th...
How do you organize your version control repository?
...st, I know about this: How would you organize a Subversion repository for in house software projects?
Next, the actual question:
My team is restructuring our repository and I'm looking for hints on how to organize it. (SVN in this case).
Here's what we came up with. We have one repository, multipl...
How do I replace NA values with zeros in an R dataframe?
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See my comment in @gsk3 answer. A simple example:
> m <- matrix(sample(c(NA, 1:10), 100, replace = TRUE), 10)
> d <- as.data.frame(m)
V1 V2 V3 V4 V5 V6 V7 V8 V9 V10
1 4 3 NA 3 7 6 6 10 6 5
2 9 8 9 5 10 NA 2 ...
C++ Redefinition Header Files (winsock2.h)
How do I prevent from including header files twice? The problem is I'm including the in MyClass.h and then I'm including MyClass.h in many files, so it includes multiple times and redefinition error occurs. How to prevent?
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