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Saving enum from select in Rails 4.1
...arkling</option>
</select>
Values went from "0" to "red" and now we're all set.
If you're using a regular ol' rails text_field it's:
f.select :color, Wine.colors.keys.to_a
If you want to have clean human-readable attributes you can also do:
f.select :color, Wine.colors.keys.ma...
std::function vs template
...object that adheres to a specific signature, but whose concrete type is unknown at compile-time. This is typically the case when you have a collection of callbacks of potentially different types, but which you need to invoke uniformly; the type and number of the registered callbacks is determined a...
ADT requires 'org.eclipse.wst.sse.core 0.0.0' but it could not be found
... enter
http://download.eclipse.org/releases/helios
for the Location.
Now go through the installation steps; Eclipse should download and
install the plugin's dependencies.
(There are examples in that page for 3.5 (Galileo), 3.4 (Ganymede) & 3.3 (Europa) for anyone with different vers...
How to print colored text in Python?
...
Just noticed that as of 13/01/2011, it's now under MIT license
– Alexander Tsepkov
Oct 28 '11 at 2:19
12
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How do I make a dotted/dashed line in Android?
I'm trying to make a dotted line. I'm using this right now for a solid line:
19 Answers
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Converting JSON data to Java object
... + "}]"
+ "}]"
+ "}";
// Now do the magic.
Data data = new Gson().fromJson(json, Data.class);
// Show it.
System.out.println(data);
}
}
class Data {
private String title;
private Long id;
private Boolean chi...
Why is it bad practice to call System.gc()?
...n; any that rely on it for performance are most likely broken.
You don't know what sort of garbage collector you are running under. There are certainly some that do not "stop the world" as you assert, but some JVMs aren't that smart or for various reasons (perhaps they are on a phone?) don't do it...
When should I use Kruskal as opposed to Prim (and vice versa)?
...average case is dependent on what you're proving. In fact (as I look it up now), the wiki article uses language that implies that its only used for worst-case analysis. Now, using such an analysis means that you can't make as strong promises about the cost of a particular operation, but by the time...
delete map[key] in go?
...ven if the key is already absent from the map.
delete(timeZone, "PDT") // Now on Standard Time
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Background task, progress dialog, orientation change - is there any 100% working solution?
...ionInstance(), return the AsyncTask, after detaching it from the original, now-going-away activity.
Step #5: In onCreate(), if getLastNonConfigurationInstance() is not null, cast it to your AsyncTask class and call your setter to associate your new activity with the task.
Step #6: Do not refer to ...