public static long GetIncrementedKeyId(DbContext context, WineModel entity)
{
var dbSet = context.Set(entity.GetType());
var dbEntitiesList = Enumerable.Cast <WineModel>(dbSet).ToList();
var localDbEntitiesList = Enumerable.Cast <WineModel>(dbSet.Local).ToList();
long currentCount = 0;
if (dbEntitiesList.Count > 0)
{
var lastInsertedEntity = dbEntitiesList
.OrderByDescending(t => t.KeyId)
.First();
currentCount = lastInsertedEntity.KeyId;
}
if (localDbEntitiesList.Count > 0)
{
var lastLocalEntity = localDbEntitiesList
.OrderByDescending(t => t.KeyId)
.First();
if (lastLocalEntity.KeyId > currentCount)
{
currentCount = lastLocalEntity.KeyId;
}
}
return(++currentCount);
}
private void Copy(object from, WineModel to)
{
var propertyInfoArray = from.GetType().GetProperties();
foreach (var propertyInfo in propertyInfoArray)
{
try
{
var copyToAttribute = propertyInfo.GetCustomAttribute <CopyToAttribute>();
var ignoreWhileCopyAttribute = propertyInfo.GetCustomAttribute <IgnoreWhileCopyAttribute>();
if (ignoreWhileCopyAttribute != null)
{
continue;
}
if (propertyInfo.IsCollectionProperty())
{
if (copyToAttribute == null)
{
throw new Exception("No CopyTo attribute applied on property " + propertyInfo.PropertyType.FullName);
}
var toCollection = copyToAttribute.Name != null ? (dynamic)to.GetType().GetProperty(copyToAttribute.Name).GetValue(to) : (dynamic)to.GetType().GetProperty(propertyInfo.Name).GetValue(to);
var toCollectionItemType = copyToAttribute.To;
var fromCollection = (System.Collections.IEnumerable)propertyInfo.GetValue(from);
var fromCollectionItemType = fromCollection.GetType().GetGenericArguments().Single();
var toRepositoryType = typeof(WineRepository <>).MakeGenericType(toCollectionItemType);
var toRepositoryInstance = (dynamic)Activator.CreateInstance(toRepositoryType, _context, _userId);
if (copyToAttribute.Relationship == Relationship.Dependency)
{
if (fromCollectionItemType == typeof(string) && copyToAttribute.IsForeignKey)
{
foreach (string item in fromCollection)
{
toCollection.Add(toRepositoryInstance.GetByID(item));
}
}
else if (fromCollectionItemType == typeof(WineModel))
{
foreach (WineModel item in fromCollection)
{
toCollection.Add(toRepositoryInstance.GetByID(item.Id));
}
}
}
else if (copyToAttribute.Relationship == Relationship.Dependent)
{
foreach (dynamic item in fromCollection)
{
var hasId = item.GetType().GetProperty("Id");
if (hasId != null && item.Id != null)
{
var itemToUpdate = ((System.Collections.IEnumerable)toCollection).Cast <dynamic>().Where(i => i.Id == item.Id).FirstOrDefault();
if (itemToUpdate == null)
{
throw new Exception("Something is wrong with Id - Either mismatch or absence.");
}
toRepositoryInstance.Copy(item, itemToUpdate);
}
else if (hasId == null || item.Id == null)
{
var itemToAdd = (dynamic)Activator.CreateInstance(copyToAttribute.To);
toRepositoryInstance.Copy(item, itemToAdd);
toCollection.Add(itemToAdd);
}
}
}
else if (copyToAttribute.Relationship == Relationship.Seed)
{
Mapper mapper = new Mapper();
var methodInfo = mapper.GetType().GetMethod("Map");
var genericMethodInfo = methodInfo.MakeGenericMethod(copyToAttribute.From, copyToAttribute.To);
var fromRepositoryType = typeof(WineRepository <>).MakeGenericType(copyToAttribute.From);
var fromRepositoryInstance = (dynamic)Activator.CreateInstance(fromRepositoryType, _context, _userId);
if (fromCollectionItemType == typeof(string))
{
foreach (string item in fromCollection)
{
var fromItem = fromRepositoryInstance.GetByID(item);
var toItem = genericMethodInfo.Invoke(mapper, new object[] { fromItem });
toCollection.GetType().GetMethod("Add").Invoke(toCollection, new object[] { toItem });
}
}
}
}
else if (propertyInfo.IsNormalProperty())
{
if (copyToAttribute != null)
{
if (copyToAttribute.IsForeignKey)
{
if (propertyInfo.GetValue(from) == null)
{
// Do nothing
}
else
{
var repositoryType = typeof(WineRepository <>).MakeGenericType(copyToAttribute.To);
var repositoryInstance = (dynamic)Activator.CreateInstance(repositoryType, _context, _userId);
string entityName = null;
if (string.IsNullOrEmpty(copyToAttribute.Name))
{
// Foreign key is conventionally named as TEntityNameId
entityName = propertyInfo.Name.Remove(propertyInfo.Name.Length - 2);
}
else
{
entityName = copyToAttribute.Name;
}
var entityPropertyInfo = to.GetType().GetProperty(entityName);
if (propertyInfo.GetValue(from) != null)
{
entityPropertyInfo.SetValue(to, repositoryInstance.GetByID(propertyInfo.GetValue(from)));
}
}
}
else
{
throw new Exception("Not marked as foreign key");
}
}
if (to.GetType().GetProperty(propertyInfo.Name).PropertyType.IsEnum)
{
var enumType = Type.GetType(to.GetType().GetProperty(propertyInfo.Name).PropertyType.FullName);
MethodInfo methodInfo = typeof(WineExtensions).GetMethod("ToEnum");
dynamic enumValue = new System.Dynamic.ExpandoObject();
try
{
enumValue = methodInfo.MakeGenericMethod(new[] { enumType }).Invoke(propertyInfo.GetValue(from), new[] { propertyInfo.GetValue(from) });
}
catch
{
enumValue = -1;
}
_context.Entry(to).Property(propertyInfo.Name).CurrentValue = enumValue;
}
else
{
_context.Entry(to).Property(propertyInfo.Name).CurrentValue = propertyInfo.GetValue(from);
}
}
}
catch (Exception e)
{
var message = "Something is wrong with " + propertyInfo.Name;
throw new Exception(message, e);
}
}
}
