CODEWITHSUNDEEP
c#asp.net-mvcmodel
Simon Nicholls
Simon Nicholls

Reputation: 655

Re use data in a model in multiple view MVC 5

I have a user model for a C# web app that I populate in a controller with various properties like username etc.

I'd just like to know if there is a place where I can instantiate this class once and then reuse it in multiple controllers as currently I have it setup so that every single controller creates a new instance of User adds the relevant data to it and passes it to it's view but this doesn't seem efficient!

Upvotes: 0

Views: 149

Answers (2)

user3559349
user3559349

Reputation:

If its a small amount of data consider using a custom IPrincipal (or Claims if your using Identity) so its avaliable in the FormsAuthenticationTicket. Otherwise you can store the data in Session to avoid repeated database calls.

In addition, consider a BaseController class (from which all your controllers inherit) which contains a property or method to read the object from Session (and gets the object from the database in case Session has expired or has been recycled)

Upvotes: 1

funkyCatz
funkyCatz

Reputation: 119

you can cache your data using MemoryCache :

public class InMemoryCache: ICacheService
{
    public T GetOrSet<T>(string cacheKey, Func<T> getItemCallback) where T : class
    {
        T item = MemoryCache.Default.Get(cacheKey) as T;
        if (item == null)
        {
            item = getItemCallback();
            MemoryCache.Default.Add(cacheKey, item, DateTime.Now.AddMinutes(10));
        }
        return item;
    }
}

interface ICacheService
{
    T GetOrSet<T>(string cacheKey, Func<T> getItemCallback) where T : class;
}

Usage: var user=cacheService.GetOrSet("User", ()=>Repository.GetUser())

Or implement CacheRepository pattern ( CacheRepo pattern description )

Upvotes: 1

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