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What is the easiest way to duplicate an activerecord record?
...initely DO NOT use clone. As other posters have mentioned the clone method now delegates to using Kernel#clone which will copy the id. Use ActiveRecord::Base#dup from now on
– bradgonesurfing
Aug 5 '11 at 13:57
...
What specific productivity gains do Vim/Emacs provide over GUI text editors?
... I've been using Vim as my console-editor of choice for a couple months now (for editing configuration files while in my terminal), but I don't think I could stand it for my normal, every day work of writing web applications, which I do with a GUI text editor (which one isn't important).
...
plot a circle with pyplot
...e, showing how units matter:
circle1 = plt.Circle((0, 0), 2, color='r')
# now make a circle with no fill, which is good for hi-lighting key results
circle2 = plt.Circle((5, 5), 0.5, color='b', fill=False)
circle3 = plt.Circle((10, 10), 2, color='g', clip_on=False)
ax = plt.gca()
ax.cla() # clear t...
Create a tag in a GitHub repository
..., you might want to fetch it into your local repository too:
git fetch
Now next time, you may want to create one more tag within the same release from website. For that follow these steps:
Go to release tab
Click on edit button for the release
Provide name of the new tag ABC_DEF_V_5_3_T_2 and...
How can you get the Manifest Version number from the App's (Layout) XML variables?
...rsion number in the main part of the code. What I have been doing up until now is to link the version number in a String XML file to the manifest (@string/Version). What I would like to do is to do it the other way around, link a string XML variable to the version in the manifest. The reason? I'd li...
What's the difference between ViewData and ViewBag?
...icrosoft for introducing this? It just a tool given to developers. If you know what you are doing, you can make the most out of it. If you don't like it or feel like its more prone to errors, simply don't use it. :)
– Bilal Fazlani
Mar 15 '15 at 9:19
...
Cannot download Docker images behind a proxy
...tory for the Docker service:
mkdir /etc/systemd/system/docker.service.d
Now create a file called /etc/systemd/system/docker.service.d/http-proxy.conf that adds the HTTP_PROXY environment variable:
[Service]
Environment="HTTP_PROXY=http://proxy.example.com:80/"
If you have internal Docker regis...
How to pass parameters to a modal?
...ditId: function () {
return Id;
}
}
});
}
Now if you will use like this:
app.controller('EditCtrl', ['$scope', '$location'
, function ($scope, $location, editId)
in this case editId will be undefined. You need to inject it, like this:
app.controller('EditC...
In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?
... your functions in it to MyFunctions.psm1 (you've just created a module!). Now for a module to load properly, you have to do some specific things with the file. First for Import-Module to see the module (you use this cmdlet to load the module into the shell), it has to be in a specific location. The...
Is using a lot of static methods a bad thing?
... Math object encapsulate anything but behaviour?
– JonoW
Apr 15 '09 at 17:22
10
He just said susp...