Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>I would argue that you are violating two principles: the single responsibility principle (SRP) and the open/closed principle (OCP).</p> <p>You are violating the SRP because the bootstrapping class have more than one reason to change: if you alter model binding or the auto mapper configuration.</p> <p>You would be violating the OCP if you were to add additional bootstrapping code for configuring another sub-component of the system.</p> <p>How I usually handle this is that I define the following interface.</p> <pre><code>public interface IGlobalConfiguration { void Configure(); } </code></pre> <p>For each component in the system that needs bootstrapping I would create a class that implements that interface.</p> <pre><code>public class AutoMapperGlobalConfiguration : IGlobalConfiguration { private readonly IConfiguration configuration; public AutoMapperGlobalConfiguration(IConfiguration configuration) { this.configuration = configuration; } public void Configure() { // Add AutoMapper configuration here. } } public class ModelBindersGlobalConfiguration : IGlobalConfiguration { private readonly ModelBinderDictionary binders; public ModelBindersGlobalConfiguration(ModelBinderDictionary binders) { this.binders = binders; } public void Configure() { // Add model binding configuration here. } } </code></pre> <p>I use Ninject to inject the dependencies. <code>IConfiguration</code> is the underlying implementation of the static <code>AutoMapper</code> class and <code>ModelBinderDictionary</code> is the <code>ModelBinders.Binder</code> object. I would then define a <code>NinjectModule</code> that would scan the specified assembly for any class that implements the <code>IGlobalConfiguration</code> interface and add those classes to a composite.</p> <pre><code>public class GlobalConfigurationModule : NinjectModule { private readonly Assembly assembly; public GlobalConfigurationModule() : this(Assembly.GetExecutingAssembly()) { } public GlobalConfigurationModule(Assembly assembly) { this.assembly = assembly; } public override void Load() { GlobalConfigurationComposite composite = new GlobalConfigurationComposite(); IEnumerable&lt;Type&gt; types = assembly.GetExportedTypes().GetTypeOf&lt;IGlobalConfiguration&gt;() .SkipAnyTypeOf&lt;IComposite&lt;IGlobalConfiguration&gt;&gt;(); foreach (var type in types) { IGlobalConfiguration configuration = (IGlobalConfiguration)Kernel.Get(type); composite.Add(configuration); } Bind&lt;IGlobalConfiguration&gt;().ToConstant(composite); } } </code></pre> <p>I would then add the following code to the Global.asax file.</p> <pre><code>public class MvcApplication : HttpApplication { public void Application_Start() { IKernel kernel = new StandardKernel( new AutoMapperModule(), new MvcModule(), new GlobalConfigurationModule() ); Kernel.Get&lt;IGlobalConfiguration&gt;().Configure(); } } </code></pre> <p>Now my bootstrapping code adheres to both SRP and OCP. I can easily add additional bootstrapping code by creating a class that implements the <code>IGlobalConfiguration</code> interface and my global configuration classes only have one reason to change.</p>
    singulars
    1. This table or related slice is empty.
    1. POConfiguring Automapper in Bootstrapper violates Open-Closed Principle?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. USmrydengren
    1. USmrydengren
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POConfiguring Automapper in Bootstrapper violates Open-Closed Principle?
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    1. COand you still have to change the Configure method in AutoMapperGlobalConfiguration each time you need to add a new mapping
      singulars
      1. PO
      1. USOmu
    2. COBut that would not violate OCP. OCP is not write once never touch again. OCP states that the consumer of the bootstrapping code, the GlobalConfigurationModule (GCM), should rely on abstraction and not conrete implementation. If I were to add bootstrapping for log4net I would create a class Log4NetGlobalConfiguration class that would implement IGlobalConfiguration. However, I would not have to modify any other part of my code and definitely not the GCM because it has no intricate knowledge of the conrete implementation of the IGlobalConfiguration interface.
      singulars
      1. PO
      1. USmrydengren
    3. COI'm in a doubt. Once Mapper.CreateMap<>() is executed the maps exists until application's shutdown?
      singulars
      1. PO
      1. USJPCF
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload