private SeriesModel ConvertDataRowToSeriesModel(DataRow rawSeriesData)
{
uint authorId;
uint.TryParse(rawSeriesData[seriesAuthorKeyIndex].ToString(), out authorId);
string title = rawSeriesData[seriesTitleIndex].ToString();
AuthorModel author = ((App)Application.Current).Model.AuthorTable.GetAuthorFromId(authorId);
SeriesModel seriesModel = new SeriesModel(author, title);
return(seriesModel);
}
public AuthorModel GetAuthorFromId(uint key)
{
AuthorModel author = null;
DataTable dt = AuthorTable;
string filterString = "idAuthors = '" + key.ToString() + "'";
DataRow[] authors = dt.Select(filterString);
if (authors.Length > 0)
{
author = ConvertDataRowToAuthor(authors[0]);
}
return(author);
}
public BookModel(bool EditNotInsert)
{
_bookKey = 0;
_bookInfo = new BookInfoModel();
_authorInfo = null;
_itemsToValidate = new List <DataTableItemBaseModel>();
_itemsToAddToDb = new List <DataTableItemBaseModel>();
_editMode = EditNotInsert;
if (!EditNotInsert)
{
_bookInfoIndex = AddUnique(_itemsToValidate, _bookInfo);
}
else
{
_itemsToUpDate = new List <DataTableItemBaseModel>();
}
}
public List <string> SeriesSelectionListCreator(AuthorModel author)
{
List <string> seriesSelectionList = new List <string>();
if (author != null && author.IsValid)
{
DataTable currentSeriesList = Series;
string filterString = "LastName = '" + author.LastName + "' AND FirstName = '" + author.FirstName + "'";
DataRow[] seriesTitleList = currentSeriesList.Select(filterString);
foreach (DataRow row in seriesTitleList)
{
seriesSelectionList.Add(row[seriesTitleIndex].ToString());
}
}
return(seriesSelectionList);
}
public uint GetSeriesKey(AuthorModel author, string seriesTitle)
{
uint key = 0;
if (author != null && author.IsValid)
{
string SqlQuery = "SELECT series.idSeries FROM series WHERE series.SeriesName = @title AND series.AuthorOfSeries = @authorid;";
using (MySqlConnection conn = new MySqlConnection(_dbConnectionString))
{
int ResultCount = 0;
DataTable Dt = new DataTable();
try
{
conn.Open();
using (MySqlCommand cmd = new MySqlCommand())
{
cmd.Connection = conn;
cmd.CommandType = CommandType.Text;
cmd.CommandText = SqlQuery;
cmd.AddParameter("@title", MySqlDbType.String, seriesTitle)
.AddParameter("@authorid", MySqlDbType.UInt32, author.AuthorId);
cmd.ExecuteNonQuery();
MySqlDataAdapter sda = new MySqlDataAdapter(cmd);
ResultCount = sda.Fill(Dt);
if (ResultCount > 0)
{
key = Dt.Rows[0].Field <uint>(0);
}
}
}
catch (Exception ex)
{
string errorMsg = "Database Error: " + ex.Message;
MessageBox.Show(errorMsg);
key = 0;
}
}
}
return(key);
}
public uint AuthorKey(AuthorModel author)
{
uint key = author.AuthorId;
if (key < 1)
{
DataTable dt = AuthorTable;
string filterString = "LastName = '" + author.LastName + "' AND FirstName = '" + author.FirstName + "' AND MiddleName Like '" + author.MiddleName + "'";
DataRow[] authors = dt.Select(filterString);
if (authors.Length > 0)
{
if (!uint.TryParse(authors[0][AuthorIDColumnIndex].ToString(), out key))
{
key = 0;
}
}
else
{
key = 0;
}
}
return(key);
}
public bool UpdateAuthor(AuthorModel NewAuthor) => updateItem(NewAuthor);
public bool AddAuthor(AuthorModel NewAuthor) => addItem(NewAuthor);
