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Change a column type from Date to DateTime during ROR migration
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This answer is only partially correct, you can not use change_column inside change even on rails 4 or down migration will not work. You should use up/down no matter the version of rails.
– Alan Peabody
Jul 18 '1...
How to draw a path on a map using kml file?
...ocument() throws SAXException {
// Nothing to do
}
/** Gets be called on opening tags like:
* <tag>
* Can provide attribute(s), when xml was like:
* <tag attribute="attributeValue">*/
@Override
public void startElement(String namespaceURI, String localName,
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Java variable number or arguments for a method
Is it possible to declare a method that will allow a variable number of parameters ?
6 Answers
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Why are Oracle table/column/index names limited to 30 characters?
..., but there is always a case that turns up where we hit this limit - especially in naming foreign keys.
10 Answers
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Set the maximum character length of a UITextField
...ed in to itself with an empty string. This will crash because it never actually pasted the string in to itself. It will try to replace a part of the string that doesn't exist.
Fortunately you can protect the UITextField from killing itself like this. You just need to ensure that the range it propose...
Make a div into a link
...link. One example of this would be facebook ads - if you look, they're actually proper markup.
For me the no-nos are: javascript (shouldn't be needed just for a link, and very bad SEO/accessibility); invalid HTML.
In essence it's this:
Build your panel using normal CSS techniques and valid HTML....
In what areas might the use of F# be more appropriate than C#? [closed]
... sweet spot for the language within enterprise software, namely algorithmically complex analysis of large data sets. My experience has been a very positive one. In particular:
Units of measure The industry I work in is littered with units. The equations I implemented (often of a geometric nature) d...
如何查看Android应用.apk是32位还是64位？ - App应用开发 - 清泛IT社区，为创新赋能！
...的架构。例如，arm64-v8a表示64位ARM架构，而armeabi-v7a表示32位ARM架构。
3）使用命令行工具：如果你喜欢使用命令行，可以使用如aapt这类工具来查看APK文件的信息，包括其支持的架构。
aapt dump badging your_app.apk | grep native-code
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Notepad++: How to automatically set Language as Xml when load files
...otepad++ (which is an XML file) I want the syntax highlighting to automatically color it like XML. How do I configure Notepad++ to do this so that I don't have to manually select it every time I open a .config file?
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How to accept Date params in a GET request to Spring MVC Controller?
...can I suggest that you use the Joda DateTime library. Spring supports it really well.
– Luciano
Mar 1 '13 at 19:06
The...