public void Save(PresenterModel data, Action <string> next)
{
data.Item = new BlogPost {
Title = data.Title, Description = data.Description, Id = data.Id
};
if (data.Item.Id > 0)
{
// simulate a slow save after editing an item
/*
* setTimeout(function() {
* actions.present(data, next);
* }, 9000);
*/
// slow save simulation not yet implemented in C#
// save normally
_present(data, next);
}
else
{
// proceed as normal when created a new item
_present(data, next);
}
}
public void Edit(PresenterModel data, Action <string> next)
{
data.LastEdited = new BlogPost {
Title = data.Title, Description = data.Description, Id = data.Id
};
_present(data, next);
}
// The dispatch method decides whether an action can be dispatched
// based on SAFE's context
public void Dispatch(string action, PresenterModel data, Action <string> next)
{
this._logger.Info("dispatcher received request");
bool dispatch = false;
var lastStepActions = this._lastStep.Actions;
this._logger.Info("dispatcher received request" + JsHelpers.JSON.stringify(data));
this._logger.Info("lastStepActions " + JsHelpers.JSON.stringify(lastStepActions));
if (lastStepActions.Count == 0)
{
// action validation is disabled
dispatch = true;
}
else
{
foreach (var lastStep in lastStepActions)
{
this._logger.Info(lastStep.ToString());
if (lastStep.Action == action)
{
dispatch = true;
// tag the action with the stepid
// we want to enforce one action per step
// if the step does not match we should not dispatch
data.__actionId = lastStep.UId;
this._logger.Info("tagging action with " + lastStep.ToString());
this._lastStep.Dispatched = action;
}
}
}
if (!dispatch)
{
this._errorHandler(new { action = action, error = "not allowed" }.ToString());
}
else
{
if (this._actions.ActionList.ContainsKey(action))
{
// dispatch action
this._logger.Info("invoking action " + data.ToString());
this._actions.ActionList[action](data, next);
}
else
{
this._errorHandler(new { action = action, error = "not found" }.ToString());
}
}
}
public void Present(PresenterModel data, Action <string> next)
{
string actionId = data.__actionId ?? null;
if (!this._blocked)
{
var lastStepActions = this._lastStep.Actions;
this._logger.Info(lastStepActions.ToString());
bool presentData = (lastStepActions.Count == 0);
if (!presentData)
{
// are we expecting that action?
foreach (var item in lastStepActions)
{
if (item.UId == actionId)
{
presentData = true;
}
}
}
if (presentData)
{
Block();
if (!string.IsNullOrEmpty(data.__token))
{
this._model.__session = this._sessionManager.RehydrateSession(data.__token);
this._model.__token = data.__token;
}
if (this._saveSnapshot != null)
{
// Store snapshot in TimeTravel
this._saveSnapshot(null, data.ToString());
}
this._model.Present(data, next);
}
else
{
// unexpected actions
// possibly an action from previous step that needs to be blocked
}
}
else
{
// ignore action's effect
// this.logger({ blocked: true,data}) ; //todo
}
}
public void Present(PresenterModel data, Action <string> next)
{
if (data == null)
{
data = new PresenterModel(); //Implementation
}
if (data.DeletedItemId != 0)
{
var d = -1;
foreach (var post in Posts)
{
if (post.Id != 0 && post.Id == data.DeletedItemId)
{
d = post.Id;
}
}
if (d > 0)
{
LastDeleted = Posts.ElementAt(d);
}
}
if (data.LastEdited != null)
{
LastEdited = data.LastEdited;
}
else
{
// delete model.lastEdited; //TODO check
}
if (data.Item != null)
{
if (data.Item.Id > 0)
{
// item has been edited
var indexer = 0;
foreach (var post in Posts)
{
if (post.Id > 0 && post.Id == data.Item.Id)
{
Posts[indexer] = data.Item;
}
indexer = indexer + 1;
}
}
else
{
// new item
data.Item.Id = Posts.Max(x => x.Id) + 1;
Posts.Add(data.Item);
}
}
//console.log(model);
this.Render(this, next);
}
public void Cancel(PresenterModel data, Action <string> next)
{
_present(data, next);
}
public void Delete(PresenterModel data, Action <string> next)
{
data.DeletedItemId = data.Id;
_present(data, next);
}
/// <summary>
/// Default Presenter Method.
/// </summary>
private static void DefaultPresent(PresenterModel data, Action <string> next = null)
{
// if this presenter is used, that means we forgot to specify one
throw new NotImplementedException("Present function not properly initialized?");
}
