// update a media row
public bool IsMediaUpdated(MediaDTO updatedMedia)
{
// get stored info from other tables
int newDID = GetDID(updatedMedia.Director);
int newGID = GetGID(updatedMedia.Genre);
int newLID = GetLID(updatedMedia.Language);
try
{
if (newDID != -1 && newGID != -1 && newLID != -1)
{
// update row using query
tabMediaTableAdapter.UpdateMedia(updatedMedia.Title, newGID, newDID, newLID, updatedMedia.PublishYear, updatedMedia.Budget, updatedMedia.MediaID);
return(true);
}
else
{
return(false);
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return(false);
}
}
// get all media records
public List <MediaDTO> GetAllMedia()
{
// list for storing media objects
List <MediaDTO> mediaList = new List <MediaDTO>();
try
{
// get all rows in the table using query
tabMediaTableAdapter.Fill(tabMediaDataTable);
foreach (DataRow mediaRow in tabMediaDataTable.Rows)
{
MediaDTO media = new MediaDTO
{
MediaID = Convert.ToInt32(mediaRow[0]),
Title = mediaRow[1].ToString(),
Genre = mediaRow[4].ToString(),
Director = mediaRow[6].ToString(),
Language = mediaRow[4].ToString(),
PublishYear = Convert.ToInt32(mediaRow[2]),
Budget = Convert.ToDecimal(mediaRow[3])
};
mediaList.Add(media);
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
return(mediaList);
}
// add new media row into Media table
public bool IsMediaInserted(MediaDTO newMedia)
{
int dID = GetDID(newMedia.Director);
int gID = GetGID(newMedia.Genre);
int lID = GetLID(newMedia.Language);
try
{
if (dID != -1 && gID != -1 && lID != -1)
{
// insert row using query
tabMediaTableAdapter.InsertMedia(newMedia.Title, gID, dID, lID, newMedia.PublishYear, newMedia.Budget);
return(true);
}
else
{
return(false);
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return(false);
}
}
public List <MediaDTO> Search(string searchType, string searchText)
{
// list for storing media from search result
List <MediaDTO> foundMediaList = new List <MediaDTO>();
MediaDataSet.TabMediaDataTable tabMediaDataTable = new MediaDataSet.TabMediaDataTable();
TabMediaTableAdapter tabMediaTableAdapter = new TabMediaTableAdapter();
try
{
// get results by query based on search type
switch (searchType)
{
case "Title":
searchText = "%" + searchText + "%";
tabMediaTableAdapter.SelectMediaByTitle(tabMediaDataTable, searchText);
break;
case "Genre":
searchText = "%" + searchText + "%";
tabMediaTableAdapter.SelectMediaByGenreName(tabMediaDataTable, searchText);
break;
case "Director":
searchText = "%" + searchText + "%";
tabMediaTableAdapter.SelectMediaByDirectorName(tabMediaDataTable, searchText);
break;
case "Language":
searchText = "%" + searchText + "%";
tabMediaTableAdapter.SelectMediaByLanguageName(tabMediaDataTable, searchText);
break;
case "PublishYear":
tabMediaTableAdapter.SelectMediaByPublishYear(tabMediaDataTable, Convert.ToInt32(searchText));
break;
case "Budget":
tabMediaTableAdapter.SelectMediaByBudget(tabMediaDataTable, Convert.ToDecimal(searchText));
break;
default:
tabMediaTableAdapter.Fill(tabMediaDataTable);
break;
}
}
catch (FormatException e)
{
Console.WriteLine(e.Message);
try
{
tabMediaTableAdapter.Fill(tabMediaDataTable);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
try
{
tabMediaTableAdapter.Fill(tabMediaDataTable);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
// convert raw data from table into media objects
foreach (DataRow mediaRow in tabMediaDataTable.Rows)
{
MediaDTO media = new MediaDTO
{
MediaID = Convert.ToInt32(mediaRow[0]),
Title = mediaRow[1].ToString(),
Genre = mediaRow[4].ToString(),
Director = mediaRow[5].ToString(),
Language = mediaRow[6].ToString(),
PublishYear = Convert.ToInt32(mediaRow[2]),
Budget = Convert.ToDecimal(mediaRow[3])
};
foundMediaList.Add(media);
}
return(foundMediaList);
}