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Rails 3 check if attribute changed
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Check out Active<em>Mem>odel::Dirty (available on all <em>mem>odels by default). The docu<em>mem>entation is really good, but it lets you do things such as:
@user.street1_changed? # =&a<em>mem>p;gt; true/false
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How to write Unicode characters to the console?
...g .NET. When I try to write this character, the console outputs a question <em>mem>ark.
5 Answers
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@UniqueConstraint and @Colu<em>mem>n(unique = true) in hibernate annotation
What is difference between @UniqueConstraint and @Colu<em>mem>n(unique = true) ?
4 Answers
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Do regular expressions fro<em>mem> the re <em>mem>odule support word boundaries (\b)?
While trying to learn a little <em>mem>ore about regular expressions, a tutorial suggested that you can use the \b to <em>mem>atch a word boundary. However, the following snippet in the Python interpreter does not work as expected:
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Class <em>mem>ethod decorator with self argu<em>mem>ents?
How do I pass a class field to a decorator on a class <em>mem>ethod as an argu<em>mem>ent? What I want to do is so<em>mem>ething like:
5 Answer...
“open/close” SqlConnection or keep open?
I have <em>mem>y business-logic i<em>mem>ple<em>mem>ented in si<em>mem>ple static classes with static <em>mem>ethods. Each of these <em>mem>ethods opens/closes SQL connection when called:
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Jquery selector input[type=text]')
I wrote a code that basically selects all input type=text ele<em>mem>ent like this:
4 Answers
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What is the “__v” field in <em>Mem>ongoose
I'<em>mem> using <em>Mem>ongoose version 3 with <em>Mem>ongoDB version 2.2. I've noticed a __v field has started appearing in <em>mem>y <em>Mem>ongoDB docu<em>mem>ents. Is it so<em>mem>ething to do with versioning? How is it used?
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Is it possible to use getters/setters in interface definition?
At the <em>mem>o<em>mem>ent, TypeScript does not allow use get/set <em>mem>ethods(accessors) in interfaces.
For exa<em>mem>ple:
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vi<em>mem> co<em>mem><em>mem>and to restructure/force text to 80 colu<em>mem>ns
I know there are ways to auto<em>mem>atically set the width of text in vi<em>mem> using set textwidth (like Vi<em>mem> 80 colu<em>mem>n layout concerns ). What I a<em>mem> looking for is so<em>mem>ething si<em>mem>ilar to = (the indent line co<em>mem><em>mem>and) but to wrap to 80. The use case is so<em>mem>eti<em>mem>es you edit text with textwidth and after joining li...