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How to set a default value for a datetime column to record creation time in a migration?
... end
end
end
See discussion at https://github.com/rails/rails/issues/27077 and answer there by prathamesh-sonpatki
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Installing older version of R package
I am trying to use Rpy2 and ggplot2 but I get an error. After some searching for the error online, I found that the error occurs because there are changes in the ggplot2 package that are not yet reflected in Rpy2 (for example, see this post (Edit: Link is now dead)).
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How to create a colored 1x1 UIImage on the iPhone dynamically?
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You can use CGContextSetFillColorWithColor and CGContextFillRect for this:
Swift
extension UII...
Drag and drop files into WPF
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This is basically what you want to do.
private void ImagePanel_Drop(object sender, DragEventA...
remove objects from array by object property
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edited Jul 27 '18 at 2:38
answered May 10 '13 at 22:39
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NSDictionary - Need to check whether dictionary contains key-value pair or not
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2 Answers
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Is there a builtin confirmation dialog in Windows Forms?
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Here is an example. You can try something like this.
var confirmResult = MessageBox.Show("Are...
What is the difference between self-types and trait subclasses?
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It is predominately used for Dependency Injection, such as in the Cake Pattern. There exists a...
Entity Attribute Value Database vs. strict Relational Model Ecommerce
...ecome almost
impossible
Con: poor performance for large data sets
Option 2, Modelling each entity separately:
Con: more time required to gather
requirements and design
Con: new entities must be modelled and
designed by a professional
Con: custom interface components for each
entity
Pro: data typ...
Meaning of Git checkout double dashes
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edited Mar 24 '17 at 16:28
answered Nov 10 '12 at 11:09
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