public void GetModifiedMembers()
{
var db = CreateDB();
var customer = db.Customers.First();
string beforeCountry = customer.Country;
string afterCountry = "Spain";
customer.Country = afterCountry;
string beforeFax = customer.Fax;
string afterFax = "4823-435-6456";
customer.Fax = afterFax;
ModifiedMemberInfo[] modifiedInfoList = db.Customers.GetModifiedMembers(customer);
Assert.AreEqual(modifiedInfoList.Count(), 2);
ModifiedMemberInfo modInfo = modifiedInfoList.First();
Assert.AreEqual(modInfo.Member, typeof(Customer).GetProperty("Country"));
Assert.AreEqual(modInfo.CurrentValue, afterCountry);
Assert.AreEqual(modInfo.OriginalValue, beforeCountry);
modInfo = modifiedInfoList.ElementAt(1);
Assert.AreEqual(modInfo.Member, typeof(Customer).GetProperty("Fax"));
Assert.AreEqual(modInfo.CurrentValue, afterFax);
Assert.AreEqual(modInfo.OriginalValue, beforeFax);
}
private static AuditProperty CreateAuditProperty(MetaDataMember dataMember, ModifiedMemberInfo modifiedMemberInfo, object entity, AuditEntity auditEntity)
{
var auditProperty = new AuditProperty();
try
{
auditProperty.MetaDataMember = dataMember;
auditProperty.Name = dataMember.Member.Name;
Type underlyingType = GetUnderlyingType(dataMember.Type);
auditProperty.Type = underlyingType.FullName;
if (auditProperty.Type == _binaryType || dataMember.IsDeferred)
{
return(auditProperty);
}
if (auditEntity.Action == AuditAction.Update && modifiedMemberInfo.Member != null)
{
auditProperty.Current = GetValue(modifiedMemberInfo.Member, underlyingType, modifiedMemberInfo.CurrentValue, entity);
auditProperty.Original = GetValue(modifiedMemberInfo.Member, underlyingType, modifiedMemberInfo.OriginalValue, entity);
return(auditProperty);
}
var value = GetValue(dataMember.Member, underlyingType, dataMember.MemberAccessor.GetBoxedValue(entity), entity);
if (value == null)
{
return(null); // ignore null properties?
}
if (auditEntity.Action == AuditAction.Delete)
{
auditProperty.Original = value;
}
else
{
auditProperty.Current = value;
}
}
catch (Exception ex)
{
Trace.TraceError(ex.Message);
if (auditEntity.Action == AuditAction.Delete)
{
auditProperty.Original = "{error}";
}
else
{
auditProperty.Current = "{error}";
}
}
return(auditProperty);
}
