public ChangeSet GetChangeSet(Pharmaceutical previous, string user)
{
var aggregateRootChanges = new List<Change>();
var hs = GetType();
var properties = hs.GetProperties(BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.Instance |
BindingFlags.GetProperty).ToList().Where(x => x.Name != "Id");
var action = string.IsNullOrEmpty(this.Id) ? Action.Create : Action.Edit;
foreach (var property in properties)
{
var oldVal = action == Action.Create ? null : hs.GetProperty(property.Name).GetValue(previous, null);
var newVal = hs.GetProperty(property.Name).GetValue(this, null);
if (newVal == null && oldVal == null)
continue;
if (newVal == null && oldVal != null ||
!Equality(property, previous, oldVal, newVal))
{
if (property.PropertyType.IsArray)
{
oldVal = string.Format("Did have {0}", action == Action.Create ? "0" : ((Array)hs.GetProperty(property.Name).GetValue(previous, null)).Length.ToString());
newVal = string.Format("Now has {0}", ((Array)hs.GetProperty(property.Name).GetValue(this, null)).Length);
}
aggregateRootChanges.Add(new Change
{
Which = property.Name,
Original = oldVal,
New = newVal,
Who = user,
When = DateTime.Now
});
}
}
var children = hs.GetProperties(BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.Instance |
BindingFlags.GetProperty).ToList().Where(x => x.PropertyType.IsArray);
return new ChangeSet { TechnologyId = Id, Action = action, AggregateRootChanges = aggregateRootChanges.ToArray() };
}
bool Equality(PropertyInfo p1, Pharmaceutical previous, object oldVal, object newVal)
{
if (p1.PropertyType.IsArray)
{
var oldArray = GetType().GetProperty(p1.Name).GetValue(previous, null) as Array;
var newArray = GetType().GetProperty(p1.Name).GetValue(this, null) as Array;
if (oldArray.Length == 0 && newArray.Length == 0)
return true;
if (oldArray.Length == newArray.Length)
{
}
return false;
}
return newVal.Equals(oldVal);
}