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How to fix the Hibernate “object references an unsaved transient instance - save the transient insta
...ction mapping.
This happens because you have a collection in your entity, and that collection has one or more items which are not present in the database. By specifying the above options you tell hibernate to save them to the database when saving their parent.
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How to avoid the “Circular view path” exception with Spring MVC test
...in the same web application.
Exposes model objects as request attributes and forwards the request
to the specified resource URL using a javax.servlet.RequestDispatcher.
A URL for this view is supposed to specify a resource within the web
application, suitable for RequestDispatcher's forwa...
Delete everything in a MongoDB database
...way everything in a database—that is, to delete every single collection, and whatever else might be lying around, and start from scratch. Is there a single line of code that will let me do this? Bonus points for giving both a MongoDB console method and a MongoDB Ruby driver method.
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How different is Scrum practice from Agile Practice? [duplicate]
Mostly people say Scrum and Agile interchangeably but what is the difference between Scrum Practice as compared to Agile Practice ?
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How do you upload images to a gist?
...ag an image into the comment field below. This will upload your image file and insert the markdown code with the url for your uploaded image.
Copy this markdown and paste it into the file you want to display it.
Live example
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std::function and std::bind: what are they, and when should they be used?
I know what functors are and when to use them with std algorithms, but I haven't understood what Stroustrup says about them in the C++11 FAQ .
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How to create REST URLs without verbs?
...n restful URLs. I'm all for the restful approach of using URLs with nouns and not verbs don't understand how to do this.
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Explanation of the UML arrows
I have recently been studying UML and drawing simple diagrams with ordinary plain arrows between classes, but I know it's not enough. There are plenty of other arrows: generalization, realisation and etc. which have meaning to the diagram reader.
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How to remove leading and trailing white spaces from a given html string?
...ing HTML string. What would be sample code in JavaScript to remove leading and trailing white spaces from this string?
7 An...
Is the VC++ code DOM accessible from VS addons?
...ense for VC++ includes the "complete" EDG C++ parser (also used by Intel and others). Since the C# Code DOM is accessible to addons (correct me if I'm wrong), is the C++ Code DOM also accessible? Can this be used to analyse an open VC++ project within the VS environment?
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