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Rails migrations: Undo default setting for a column
...
Rails 5+
def change
change_column_default( :table_name, :column_name, from: nil, to: false )
end
Rails 3 and Rails 4
def up
change_column_default( :table_name, :column_name, nil )
end
def down
change_column_default( :table_name, :column_name, false )
end
...
What is the parameter “next” used for in Express?
...dleware functions for the same path. But you always gonna get the response from the first one. Because that is mounted first in the middleware stack and res.send will end the cycle.
But what if we always do not want the “Hello World !!!!” response back.
For some conditions we may want the "Hell...
Update built-in vim on Mac OS X
...
Don't overwrite the built-in Vim.
Instead, install it from source in a different location or via Homebrew or MacPorts in their default location then add this line to your .bashrc or .profile:
alias vim='/path/to/your/own/vim'
and/or change your $PATH so that it looks into its...
How can I change the color of AlertDialog title and the color of the line under it
...re: https://github.com/danoz73/QustomDialog
It should easily enable going from boring blue to exciting orange!
The project is basically an example of using a custom dialog builder, and in the example I created a custom view that seemed to cater to the IP Address example you give in your original...
How can I keep my branch up to date with master with git?
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And this just adds the changes from my master into my branch, and leaves the master alone, correct?
– Nic Hubbard
Apr 17 '11 at 4:59
3
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How can I tell AngularJS to “refresh”
... why it works.
$apply() is used to execute an expression in AngularJS from outside of
the AngularJS framework. (For example from browser DOM events,
setTimeout, XHR or third party libraries). Because we are calling into
the AngularJS framework we need to perform proper scope life cycle of...
Configuring Git over SSH to login once
...estion, you first run ssh-keygen to generate a public and private key as Jefromi explained. You put the public key on the server. You should use a passphrase, if you don't you have the equivalent of a plain-text password in your private key. But when you do, then you need as a practical matter ssh-a...
How to use custom packages
...ea is that Go searches for imported paths under each directory it extracts from the GOPATH environment variable (they are called "workspaces"), but this search is (luckily) not recursive, so such paths are effectively "anchored" at their respective workspaces.
– kostix
...
Why can't static methods be abstract in Java?
... languages do support static inheritance, just like instance inheritance. From a syntax perspective, those languages usually require the class name to be included in the statement. For example, in Java, assuming you are writing code in ClassA, these are equivalent statements (if methodA() is a sta...
Automapper: Update property values without creating a new object
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Thanks, Jimmy...I purposely stayed away from AutoMapper because I was afraid of the learning curve impacting my schedule. I'm officially sorry I stayed away so long...it's much easier than I initially thought.
– Neil T.
Apr 8 ...