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Creating a dynamic choice field
...'s always worth trying to use ModelForm when you need to create/change database objects. Works in 95% of the cases and it's much cleaner than creating your own implementation.
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MongoDB SELECT COUNT GROUP BY
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I need some extra operation based on the result of aggregate function. Finally I've found some solution for aggregate function and the operation based on the result in MongoDB. I've a collection Request with field request, source, status, requestDate.
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What are the First and Second Level caches in Hibernate?
...an object is
returned by the query, at that time no need to go for a database
transaction. In this way the second level cache works. Here we can use
query level cache also.
Quoted from: http://javabeat.net/introduction-to-hibernate-caching/
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Check if Key Exists in NameValueCollection
...ied key is found and its associated value is null.
collection[key] calls base.Get() then base.FindEntry() which internally uses Hashtable with performance O(1).
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CSS @font-face not working with Firefox, but working with Chrome and IE
...make any difference, but it's so simple it's worth trying: else try to use base64 encoding for your font typeface, ugly but it may works too.
A nice recap is available here
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Disable XML validation in Eclipse
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In JBoss Developer 4.0 and above (Eclipse-based), this is a tad easier. Just right-click on your file or folder that contains xml-based files, choose "Exclude Validation", then click "Yes" to confirm. Then right-click the same files/folder again and click on "Valid...
Executing JavaScript without a browser?
...n't come with a shell, but I guess it's really more like an epoll/selector-based callback/event-oriented webserver, so perhaps it doesn't need the full JS feature set, but I'm not too familiar with its inner workings.
Since you seem interested in node.js and since it's based on V8, it might be best...
.war vs .ear file
...erview:
In J2EE application, modules are packaged as EAR, JAR, and WAR based on their functionality
JAR:
EJB modules which contain enterprise java beans (class files) and EJB deployment descriptor are packed as JAR files with .jar extension
WAR:
Web modules which contain Servl...
Is it possible to view RabbitMQ message contents directly from the command line?
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As rabbitmqadmin connects to the web-based API, is sudo needed here?
– Richlv
Oct 30 '17 at 5:58
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Comet implementation for ASP.NET? [closed]
...simple example of a Long Polling Chat Server using MVC 3 Async Controllers based on a great article by Clay Lenhart
You can use the example on a AppHarbor deployment I set up based on the source from the BitBucket project.
Also, more information available from my blog post explaining the project.
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