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POStatic methods, non static members - Data Access Layer/Business Layer
 

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  1. POStatic methods, non static members - Data Access Layer/Business Layer
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    <p>OK, i am creating a web application. I am using MVC3. I have ViewModel for every view and also I have Data Model that supports viewModel and does the actuall CRUD operation in my sql table, while my viewModel validates and alters data as necessary.</p> <p>Here is a question. The way I have been coding is</p> <pre><code> public class MyClassViewModel { public string member1{get;set;} public int member2{get;set;} public static GetAllMembers(MyClassViewModel obj, out string strErrMsg) { // code goes here, read operation } public static UpdateMyClass(MyClassViewModel obj, out string strErrMsg) { // code goes here, write operation. } } </code></pre> <p>Both My ViewModel and DataModels have been coded this way, My Controller on HttpPost just do something like this..</p> <pre><code> MyClassViewModel.UpdateMember(obj,out strErrMsg) </code></pre> <p>Since its mvc on every post it creates on a strongly typed view, a new object of my ViewModel, hence non static members are different and are not shared between sessions.</p> <p>I am using Linq and therefore on each static method of my DataModel i use</p> <pre><code> var db = new MyApplicationDataContext() </code></pre> <p>to get my linq classes and work on them. This solves my open/close reader problems.</p> <p>My question is, are there any issues regarding concurrency with this design? I know I might have problems in changing my data layer if it is not designed via interface, but I highly doubt that is necessary based on my application.</p>
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