//todo: to be tested
public static void SaveAs <T>(this IEnumerable <T> data, ConstructionDataContext context, string filename,
FileType type, string description, Action <T> add, ILogPrint print = null, IShowProgress showProgress = null) where T : class, IFile
{
var file = new File
{
FileName = filename,
Type = type,
Description = description
};
var id = file.Add(context);
print?.PrintLog("Start add item");
showProgress?.SetMaxValue(data.Count());
int step = 0;
foreach (var item in data)
{
item.FileId = id;
add.Invoke(item);
step++;
showProgress?.SetCurrentValue(step);
}
context.SaveChanges();
showProgress?.Done();
}
public void Add(T item)
{
try
{
AddItem(item);
if (SaveChangesImmediately)
{
Context.SaveChanges();
}
}
catch (Exception exception)
{
if (exception.InnerException != null)
{
throw new Exception($"add {EntityName} failed, {exception.InnerException.Message}");
}
}
}
public static void SaveWithFileId <T>(this IEnumerable <T> data, ConstructionDataContext context, int fileId, ILogPrint print = null, IShowProgress showProgress = null)
where T : class, IFile
{
print?.PrintLog($"The file id is {fileId}");
showProgress?.SetMaxValue(data.Count());
int i = 0;
foreach (var item in data)
{
item.FileId = fileId;
context.Entry(item).State = EntityState.Modified;
showProgress?.SetCurrentValue(i);
i++;
}
print?.PrintLog("Saving data to database.");
context.SaveChanges();
showProgress?.Done();
}
public static bool SaveAs <T>(this IEnumerable <T> data, ConstructionDataContext context, string filename,
out int existsFileId, string description, ILogPrint print = null, IShowProgress showProgress = null) where T : class, IFile
{
existsFileId = 0;
var enumerable = data as T[] ?? data.ToArray();
var type = ConvertFileType(GetName(enumerable.First()));
print?.PrintLog("Find the existing files.");
var file = File.Select(context, filename, type);
if (file != null)
{
existsFileId = file.Id;
return(false);
}
file = new File
{
FileName = filename,
Description = description,
Type = type
};
var id = file.Add(context);
print?.PrintLog($"The file id is {id}");
showProgress?.SetMaxValue(enumerable.Length);
int i = 0;
foreach (var item in enumerable)
{
showProgress?.SetCurrentValue(i);
item.FileId = id;
i++;
}
print?.PrintLog("Saving data to database.");
context.SaveChanges();
showProgress?.Done();
return(true);
}