FormatErrorMessages.cs

namespace Sitecore.Forms.Mvc.Pipelines.Error
{
  public class FormatErrorMessage : FormProcessorBase<IFormModel> 
  {
    public override void Process(FormProcessorArgs<IFormModel> args)
    {
      Assert.ArgumentNotNull((object) args, nameof (args));
      IFormModel model = args.Model;
      if (model == null)
        return;
      for (int index = 0; index < model.Failures.Count; ++index)
      {
        ExecuteResult.Failure failure = model.Failures[index];
        Log.Warn("Web Forms for Marketers: an exception '{0}' has occured while trying to execute an action '{1}'.".FormatWith((object) failure.ErrorMessage, (object) failure.FailedAction), (object) this);
        if (!model.Failures[index].IsCustom && Sitecore.Form.Core.Configuration.Settings.HideInnerError && !model.Failures[index].IsMessageUnchangeable)
        {
          Database contextDatabase = StaticSettings.ContextDatabase;
          if (contextDatabase != null)
          {
            Item obj1 = contextDatabase.GetItem(((FormModel) model).Item.ID);
            if (obj1 != null)
            {
              string str = obj1[FormIDs.SaveActionFailedMessage];
              if (!string.IsNullOrEmpty(str))
              {
                failure.ErrorMessage = str;
                model.Failures[index] = failure;
                return;
              }
            }
            Item obj2 = contextDatabase.GetItem(FormIDs.SubmitErrorId);
            if (obj2 != null)
            {
              string str = obj2["Value"];
              if (!string.IsNullOrEmpty(str))
              {
                failure.ErrorMessage = str;
                model.Failures[index] = failure;
                return;
              }
            }
          }
          failure.ErrorMessage = this.ClientMessage;
          model.Failures[index] = failure;
        }
      }
      IEnumerable<ExecuteResult.Failure> source = model.Failures.GroupBy<ExecuteResult.Failure, string>((Func<ExecuteResult.Failure, string>) (f => f.ErrorMessage)).Select<IGrouping<string, ExecuteResult.Failure>, ExecuteResult.Failure>((Func<IGrouping<string, ExecuteResult.Failure>, ExecuteResult.Failure>) (g => g.First<ExecuteResult.Failure>()));
      model.Failures = source.ToList<ExecuteResult.Failure>();
    }

    protected virtual string ClientMessage
    {
      get
      {
        return DependenciesManager.ResourceManager.Localize("FAILED_SUBMIT");
      }
    }
  }