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Rails migrations: Undo default setting for a column

I have the problem, that I have an migration in Rails that sets up a default setting for a column, like this example: 4 Ans...
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Calendar.getInstance(TimeZone.getTimeZone(“UTC”)) is not returning UTC time

...fault IST timezone in your case. You'll need to explicitly use DateFormat.setTimeZone() to print the Date in the desired timezone. EDIT: Courtesy of @Laurynas, consider this: TimeZone timeZone = TimeZone.getTimeZone("UTC"); Calendar calendar = Calendar.getInstance(timeZone); SimpleDateFormat simp...
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Optional query string parameters in ASP.NET Web API

... I was using date parameters and if i just set them to nullable was not working. So i have to set it nullable and the set null as default value, and use server side validation accordingly and return error messages back. It worked. – Atta H. ...
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Numpy: Get random set of rows from 2D array

...ay to generate random list without replacement before 1.7. Perhaps you can setup a small definition that ensures the two values are not the same. share | improve this answer | ...
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How to select Python version in PyCharm?

... File -> Settings Preferences->Project Interpreter->Python Interpreters If it's not listed add it. share | improve this an...
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Set background color of WPF Textbox in C# code

...F Foreground and Background is of type System.Windows.Media.Brush. You can set another color like this: using System.Windows.Media; textBox1.Background = Brushes.White; textBox1.Background = new SolidColorBrush(Colors.White); textBox1.Background = new SolidColorBrush(Color.FromArgb(0xFF, 0xFF, 0, ...
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UIScrollView not scrolling

...ew *contentView; // scrollview won't scroll unless content size explicitly set [myScrollView addSubview:contentView];//if the contentView is not already inside your scrollview in your xib/StoryBoard doc myScrollView.contentSize = contentView.frame.size; //sets ScrollView content size Swift 4.0 ...
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CSS text-overflow: ellipsis; not working?

...) won't work. The element must have overflow:hidden and white-space:nowrap set. The reason you're having problems here is because the width of your a element isn't constrained. You do have a width setting, but because the element is set to display:inline (i.e. the default) it is ignoring it, and n...
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How to set std::tuple element by index?

...element from std::tuple by index using std::get . Analogically, how to set tuple's element by index? 2 Answers ...
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Java ArrayList replace at specific index

... Check out the set(int index, E element) method in the List interface share | improve this answer | follow ...