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Unique fields that allow nulls in Django

...here is that the normalized "blank" value for a form CharField is an empty string, not None. So if you leave the field blank, you get an empty string, not NULL, stored in the DB. Empty strings are equal to empty strings for uniqueness checks, under both Django and database rules. You can force the...
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How many socket connections can a web server handle?

... virtual or dedicated hosting, I read somewhere a server/machine can only handle 64,000 TCP connections at one time, is this true? How many could any type of hosting handle regardless of bandwidth? I'm assuming HTTP works over TCP. ...
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Accessing Session Using ASP.NET Web API

...w): WebApiConfig.cs public static class WebApiConfig { public static string UrlPrefix { get { return "api"; } } public static string UrlPrefixRelative { get { return "~/api"; } } public static void Register(HttpConfiguration config) { config.Routes.MapHttpRoute( ...
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Best approach to real time http streaming to HTML5 video client

I'm really stuck trying to understand the best way to stream real time output of ffmpeg to a HTML5 client using node.js, as there are a number of variables at play and I don't have a lot of experience in this space, having spent many hours trying different combinations. ...
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How to display multiple notifications in android

...intent will direct to different activity.. private void sendNotification(String message,String title,JSONObject extras) throws JSONException { String id = extras.getString("actionParam"); Log.e("gcm","id = "+id); Intent intent = new Intent(this, OrderDetailActivty.class); intent.pu...
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Nginx no-www to www and www to no-www

I am using nginx on Rackspace cloud following a tutorial and having searched the net and so far can't get this sorted. 17...
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PendingIntent does not send Intent extras

... Following code should work:- int icon = R.drawable.icon; String message = "hello"; long when = System.currentTimeMillis(); NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE); Notification notification = new Notific...
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Getting the name of a variable as a string

This thread discusses how to get the name of a function as a string in Python: How to get a function name as a string? 23 ...
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Why .NET String is immutable? [duplicate]

As we all know, String is immutable. What are the reasons for String being immutable and the introduction of StringBuilder class as mutable? ...
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convert string array to string

I would like to convert a string array to a single string. 9 Answers 9 ...