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How to execute a raw update sql with dynamic binding in rails
...:
st = ActiveRecord::Base.connection.raw_connection.prepare("update table set f1=? where f2=? and f3=?")
st.execute(f1, f2, f3)
st.close
I'm not sure if there are other ramifications to doing this (connections left open, etc). I would trace the Rails code for a normal update to see what it's doin...
Android ListView headers
...flater, convertView);
break;
}
convertView.setTag(holder);
}
else
{
holder = (ViewHolder) convertView.getTag();
}
return convertView;
}
public static class ViewHolder {
public View View; }
}
Then we have classes the implement Ite...
Why does Eclipse Java Package Explorer show question mark on some classes?
...The resource is ignored by the Git team
provider. Here only the preference settings under Team -> Ignored
Resources and the "derived" flag are relevant. The .gitignore file is
not taken into account.
dirty - The resource has changes in the
working tree that are neither in the index nor in the re...
What is the difference between `new Object()` and object literal notation?
...talking about prototype-based object model and inheritance (the code there setups a Obj class that inherits from plain Object). This question isn't about creating an instance of some custom class - it's about creating instance of Object, and the correct answer to this question is "there is no differ...
Intercept page exit event
... @mtmurdock, The second statement "var e = e || window.event;" means set e equal to the parameter e (if it's truthy) or window.event if not truthy. It will not be truthy if the parameter e is null.
– T Nguyen
Oct 16 '12 at 7:09
...
How to remove jar file from local maven repository which was added with install:install-file?
...the files manually from the repository.
Like this on windows Documents and Settings\your username\.m2 or $HOME/.m2 on Linux
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Is there a way that I can check if a data attribute exists?
...fail in the case where there is no data attribute, but data has still been set with the .data() method, e.g. $('#dataTable').data('timer', Date.now()). It seems the OP wants to check that the actual data attribute is there. @niiru's solution (or the one you offer in a comment to that solution) is be...
Reduce left and right margins in matplotlib plot
...gned to the parameters and not how much to change it by, they are where to set the margin. In other words, if you want to bring the right edge margin in by 10%, you should set right=0.9, not right=0.1 matplotlib.sourceforge.net/api/…
– drootang
Nov 18 '11 at...
TransformXml task could not be loaded from Microsoft.Web.Publishing.Tasks.dll
...Web\Microsoft.Web.Publishing.targets" />
Reload the project
That will set the correct version of Visual Studio dynamically and properly.
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fo...
Convert JS object to JSON string
...ing
if it finds any malicious code in
it.For even more security: Don't set
the includeFunctions flag to true.
Douglas Crockford, father of the JSON concept, wrote one of the first stringifiers for JavaScript. Later Steve Yen at Trim Path wrote a nice improved version which I have used for...