I am trying to structure my code in such a way to reduce/avoid code duplication and I have encountered an interesting problem. Every time my code invokes a stored proc, I need to pass few variables that are common to the stored proc: such as username, domain, server_ip and client_ip. These all come from either HttpRequest object or a system.environment object.
Since these are passed to every stored proc, my initial thought was to create a utility class that is a database wrapper and will initialize and pass these every time, so I don’t have to do it in my code. The problem is though that c# class (inside App_Code folder) doesn’t see Httprequest object. Of course, I could pass this as an argument to the wrapper, but that would defeat the whole purpose of creating the wrapper. Am I missing something here?
I realize it’s not such a huge deal to repeat 4 lines of code each time I call a stored proc, but I would rather eliminate the code duplication at the very early stages.
Set up your data layer to inherit from a base class which contains 4 properties for those values. Make the public constructor require those 4 properties.
Then do something similar in the business layer – base class with those 4 properties in the constructor.
Then the UI does new BusObj( Request[‘username’], … ).method()
Within the data layer you can have a method that builds a SQLParameter array with those 4 properties, then each method can add additional parameters to the array.