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using AutoMapper;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.AspNetCore.Mvc.Filters;
using Framework.ApiUtil.Models;
using Framework.ApiUtil.Results;
namespace Framework.ApiUtil.Controllers
/// <summary>
/// Base controller class to encapsulate functionality common to all API controllers
/// </summary>
public abstract class BaseController : Controller
public BaseController(ILogger<BaseController> logger, IMapper mapper) : base()
this.logger = logger;
this.mapper = mapper;
protected ILogger logger;
protected IMapper mapper;
public override void OnActionExecuting(ActionExecutingContext context)
context.HttpContext.Items.Add("URL_HELPER", this.Url);
/// <summary>
/// Helper Method to create a ConflictObjectResult object for when a concurrency exception occurs
/// </summary>
/// <remarks>
/// This method will take in a ConcurrencyException of type T and translate it into a
/// ConflictObjectResult object with the CurrentObject property being a ViewModel representation
/// of the current (conflicting) object. This way the client can see the conflicting object
/// such that they can make any needed changes and resubmit.
/// </remarks>
/// <typeparam name="TModel"></typeparam>
/// <typeparam name="TObject"></typeparam>
/// <param name="concurrencyException"></param>
/// <returns></returns>
protected virtual IActionResult CreateConcurrencyConflictErrorResult<TModel, TObject>(ConcurrencyException<TObject> concurrencyException)
var conflictingObject = concurrencyException.TypedObject;
var model = this.mapper.Map<TObject, TModel>(conflictingObject);
var message = new ConcurrencyErrorModel<TModel>()
Message = concurrencyException.Message,
CurrentObject = model
return new ConflictObjectResult(message);