/// <summary>
/// Matt Lapka
/// Created: 2015/02/14
/// Calls the Data Access Later to get a list of Active ItemListings
/// </summary>
/// <returns>An iterative list of active ItemListing objects</returns>
public List <ItemListing> RetrieveItemListingList()
{
try
{
double cacheExpirationTime = 5; //how long the cache should live (minutes)
var now = DateTime.Now;
if (DataCache._currentItemListingList == null)
{
//data hasn't been retrieved yet. get data, set it to the cache and return the result.
DataCache._currentItemListingList = ItemListingAccessor.GetItemListingList();
DataCache._ItemListingListTime = now;
}
else
{
//check time. If less than 5 min, return cache
if (now > DataCache._ItemListingListTime.AddMinutes(cacheExpirationTime))
{
//get new list from DB
DataCache._currentItemListingList = ItemListingAccessor.GetItemListingList();
DataCache._ItemListingListTime = now;
}
}
return(DataCache._currentItemListingList);
}
catch (Exception)
{
throw new Exception();
}
}
/// <summary>
/// Retrieves the test ItemListing object used in this class's unit tests
/// </summary>
/// <param name="list"></param>
/// <returns></returns>
private ItemListing getItemListingTestObject(List <ItemListing> list)
{
list = ItemListingAccessor.GetItemListingList();
foreach (ItemListing item in list)
{
if (item.EndDate.Equals(new DateTime(2525, 5, 28, 10, 30, 0)))
{
return(item);
}
}
return(new ItemListing());
}
/// <summary>
/// Matt Lapka
/// Created: 2015/02/14
/// Archive an ItemListing so it does not appear in active searches
/// </summary>
/// <param name="itemListToDelete">ItemListing object containing the information to delete</param>
/// <returns>An int reflecting number of rows affected</returns>
public listResult ArchiveItemListing(ItemListing itemListToDelete)
{
try
{
if (itemListToDelete.CurrentNumGuests == 0)
{
if (ItemListingAccessor.DeleteItemListing(itemListToDelete) == 1)
{
DataCache._currentItemListingList = ItemListingAccessor.GetItemListingList();
return(listResult.Success);
}
}
return(listResult.NotChanged);
}
catch (Exception)
{
return(listResult.DatabaseError);
}
}
/// <summary>
/// Matt Lapka
/// Created: 2015/02/14
/// Send a new ItemListing object to the Data Access Layer to be added to the database
/// </summary>
/// <param name="newItemListing">ItemListing object that contains the information to be added</param>
/// <returns>An int reflecting the number of rows affected -- 1 if successful, 0 if not</returns>
public listResult AddItemListing(ItemListing newItemListing)
{
try
{
if (ItemListingAccessor.AddItemListing(newItemListing) == 1)
{
DataCache._currentItemListingList = ItemListingAccessor.GetItemListingList();
DataCache._ItemListingListTime = DateTime.Now;
DataCache._currentAllItemListingList = ItemListingAccessor.GetAllItemListingList();
DataCache._AllItemListingListTime = DateTime.Now;
return(listResult.Success);
}
return(listResult.NotAdded);
}
catch (Exception)
{
return(listResult.DatabaseError);
}
}
/// <summary>
/// Matt Lapka
/// Created: 2015/02/14
/// Updates an ItemListing object by sending the object in its original form and the object with the updated information
/// </summary>
/// <param name="newItemList">The ItemListing object containing the new data</param>
/// <param name="oldItemList">The ItemListing object containing the original data</param>
/// <returns>An int reflecting the number of rows affected-- should be 1</returns>
public listResult EditItemListing(ItemListing newItemLists, ItemListing oldItemLists)
{
if (newItemLists.CurrentNumGuests > 0)
{
if (newItemLists.StartDate != oldItemLists.StartDate || newItemLists.EndDate != oldItemLists.EndDate)
{
return(listResult.NoDateChange);
}
if (newItemLists.MaxNumGuests < newItemLists.CurrentNumGuests)
{
return(listResult.MaxSmallerThanCurrent);
}
if (newItemLists.Price != oldItemLists.Price)
{
return(listResult.NoPriceChange);
}
}
if (newItemLists.StartDate > newItemLists.EndDate)
{
return(listResult.StartEndDateError);
}
if (newItemLists.StartDate < DateTime.Now)
{
return(listResult.DateInPast);
}
try
{
if (ItemListingAccessor.UpdateItemListing(newItemLists, oldItemLists) == 1)
{
DataCache._currentItemListingList = ItemListingAccessor.GetItemListingList();
return(listResult.Success);
}
return(listResult.NotChanged);
}
catch (Exception)
{
return(listResult.DatabaseError);
}
}