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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
In my Rails (3.2) app, I have a bunch of tables in my database but I forgot to add a few not null constraints. I've googled around but I can't find how to write a migration which adds not null to an existing column.
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How do I update each dependency in package.json to the latest version?
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Looks like npm-check-updates is the only way to make this happen now.
npm i -g npm-check-updates
ncu -u
npm install
On npm <3.11:
Simply change every dependency's version to *, then run npm update --save. (Note: broken in recent (3.11) versions of npm).
Before:
"depende...
How do I browse an old revision of a Subversion repository through the web view?
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Append something like this to your repository URL:
!svn/bc/<revision_number>/
E.g.
http://www.example.com/svnrepository/!svn/bc/3/
Alternative
From Bert Huijben's comment:
If your repository is hosted using Subversi...
If I fork someone else's private Github repo into my account, is it going to appear in my account as
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There appears to be a difference between removing a team member (help.github.com/articles/…) and removing a collaborator (help.github.com/articles/…). It appears to be the difference between if the private repo is part of an ...
Return anonymous type results?
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I like this approach but now I'm not sure how to display the dog's name. If I'm binding the result to a DataGrid, can I get the properties from Dog without defining them explicitly in the DogWithBreed class or do I have to create the get...
Loaded nib but the 'view' outlet was not set
...g from files owner to the view on the storyboard. A contextual menu should appear with a "view" option
– josef
Apr 9 '18 at 15:20
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Pry: show me the stack
...rame number: 0/64
From: /Users/johnmair/ruby/rails_projects/personal_site/app/controllers/posts_controller.rb @ line 7 PostsController#index:
5: def index
6: @posts = Post.all
=> 7: binding.pry
8: end
[1] pry(#<PostsController>)> show-stack
Showing all accessible fra...
Best data type for storing currency values in a MySQL database
...l places maybe required for your calculations.
I worked on a share price application that required the calculation of the price of one million shares. The quoted share price had to be stored to 7 digits of accuracy.
share
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Show/Hide the console window of a C# console application
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Just go to the application's Properties and change the Output type from Console Application to Windows Application.
share
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improve this a...
Java project in Eclipse: The type java.lang.Object cannot be resolved. It is indirectly referenced f
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This happened to me when I imported a Java 1.8 project from Eclipse Luna into Eclipse Kepler.
Right click on project > Build path > configure build path...
Select the Libraries tab, you should see the Java 1.8 jre with an e...