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Rake just one migration
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rake db:migrate:redo VERSION=xxxxxxx, but that will run the down and then the up step. You could do this in conjunction with commenting out the down step temporarily.
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How can I access getSupportFragmentManager() in a fragment?
I have a FragmentActivity and I want to use a map fragment within it. I'm having a problem getting the support fragment manager to access it.
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Add data annotations to a class generated by entity framework
... all situations, In the first case you can describe field validation rules and in the second case try to describe purposes
– dimonser
Mar 31 '15 at 14:14
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CSS content generation before or after 'input' elements [duplicate]
In Firefox 3 and Google Chrome 8.0 the following works as expected:
5 Answers
5
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How to change options of with jQuery?
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You can remove the existing options by using the empty method, and then add your new options:
var option = $('<option></option>').attr("value", "option value").text("Text");
$("#selectId").empty().append(option);
If you have your new options in an object you can:
var newO...
Facebook development in localhost
...o use FB authentication for a localhost website.
I find it more scalable and convenient to set up a second Facebook app. If I'm building MyApp, then I'll make a second one called MyApp-dev.
Create a new app at https://developers.facebook.com/apps
(New 2/15/2012) Click the Website checkbox under...
NSInvocation for Dummies?
...message rendered static, that is, it is an action turned into an object.
And, in a little more detail:
The concept of messages is central to the objective-c philosophy. Any time you call a method, or access a variable of some object, you are sending it a message. NSInvocation comes in handy when ...
Is it possible to rotate a drawable in the xml description?
...ate in XML:
<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromDegrees="90"
android:toDegrees="90"
android:pivotX="50%"
android:pivotY="50%"
android:drawable="@drawable/mainmenu_back...
Best way to work with dates in Android SQLite [closed]
I'm having some trouble working with dates on my Android application that uses SQLite.
I have a couple questions:
9 Answers...
How can you find out which process is listening on a port on Windows?
...mmendation for TCPView. It looks very useful!
-a Displays all connections and listening ports.
-b Displays the executable involved in creating each connection or listening port. In some cases well-known executables host multiple independent components, and in these cases the sequence of components...