public ActionResult Create([Bind(Include = "PrimaryTechnologyID,AudienceTypes,LearningResourceTypeID,RSSLink")] LearningResourceFeed learningResourceFeed,
List <string> AudienceTypeNames)
{
if (ModelState.IsValid)
{
learningResourceFeed.AudienceTypes = new List <AudienceType>();
if (AudienceTypeNames != null)
{
foreach (var audienceTypeName in AudienceTypeNames)
{
//add new audience type to learning resource.
var audienceType = db.AudienceTypes.FirstOrDefault(a => a.TypeOfAudience == audienceTypeName);
if (audienceType != null)
{
learningResourceFeed.AudienceTypes.Add(audienceType);
}
}
}
//add new learning resource.
db.LearningResourceFeeds.Add(learningResourceFeed);
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(learningResourceFeed));
}
public ActionResult Edit([Bind(Include = "LearningResourceFeedID,PrimaryTechnologyID,AudienceTypes,LearningResourceTypeID,RSSLink")] LearningResourceFeed learningResourceFeed,
List <string> AudienceTypeNames)
{
if (ModelState.IsValid)
{
var existingLearningResourceFeed = db.LearningResourceFeeds.Find(learningResourceFeed.LearningResourceFeedID);
//update existing learning resource feeds.
db.Entry(existingLearningResourceFeed).CurrentValues.SetValues(learningResourceFeed);
if (existingLearningResourceFeed.AudienceTypes == null)
{
existingLearningResourceFeed.AudienceTypes = new List <AudienceType>();
}
var existingAudienceTypeNames = existingLearningResourceFeed.AudienceTypes.Select(x => x.TypeOfAudience).ToList();
foreach (var audienceType in existingAudienceTypeNames)
{
var existingChild = existingLearningResourceFeed.AudienceTypes.FirstOrDefault(x => x.TypeOfAudience == audienceType);
if (AudienceTypeNames.FirstOrDefault(x => x == audienceType) == null)
{
existingLearningResourceFeed.AudienceTypes.Remove(existingChild); //remove existing audience types if exist and not in current audience types received.
}
}
foreach (string at in AudienceTypeNames)
{
if (existingAudienceTypeNames.FirstOrDefault(x => x == at) == null)
{
//add audience type if not exist in existing.
var audienceType = db.AudienceTypes.FirstOrDefault(x => x.TypeOfAudience == at);
if (audienceType != null)
{
existingLearningResourceFeed.AudienceTypes.Add(audienceType);
}
}
}
db.SaveChanges();
return(RedirectToAction("Index", new { id = learningResourceFeed.LearningResourceFeedID }));
}
ViewBag.PrimaryTechnologyID = new SelectList(db.PrimaryTechnologies, "PrimaryTechnologyID", "PrimaryTech", learningResourceFeed.PrimaryTechnologyID);
ViewBag.LearningResourceTypeID = new SelectList(db.LearningResourceTypes, "LearningResourceTypeID", "LearningResourceTypeName", learningResourceFeed.LearningResourceTypeID);
return(View(learningResourceFeed));
}
public ActionResult DeleteConfirmed(int id)
{
LearningResourceFeed learningResourceFeed = db.LearningResourceFeeds.Find(id);
var audienceTypes = learningResourceFeed.AudienceTypes.FirstOrDefault();
if (audienceTypes == null)
{
db.LearningResourceFeeds.Remove(learningResourceFeed);
db.SaveChanges();
}
else
{
ResourceManager rm = new ResourceManager(typeof(ErrorMessages));
//delete error message from resource file.
ViewBag.showDeleteMsg = rm.GetString("DeleteMsg").Trim('"') + " message: this learning resource feed is refrenced to audience types";
return(View(learningResourceFeed));
}
return(RedirectToAction("Index"));
}
