public static Task LogDelete(IEntity entity)
{
if (entity is IAuditEvent)
{
return(Task.CompletedTask);
}
if (!Config.Get <bool>("Database:Audit:Delete:Action"))
{
return(Task.CompletedTask);
}
if (!LogEventsAttribute.ShouldLog(entity.GetType()))
{
return(Task.CompletedTask);
}
var data = string.Empty;
if (Config.Get("Database:Audit:Delete:Data", defaultValue: true))
{
var changes = Context.Current.Database()
.GetProvider(entity.GetType()).GetUpdatedValues(entity, null);
data = EntityProcessor.ToChangeXml(changes);
}
return(Log("Delete", data, entity));
}
public static async Task LogUpdate(IEntity entity)
{
if (entity is IAuditEvent)
{
return;
}
if (!Config.Get <bool>("Database:Audit:Update:Action"))
{
return;
}
if (!LogEventsAttribute.ShouldLog(entity.GetType()))
{
return;
}
var data = string.Empty;
if (Config.Get("Database:Audit:Update:Data", defaultValue: true))
{
data = await EntityProcessor.GetChangesXml(entity);
if (data.IsEmpty())
{
return; // No changes have happened, ignore recording the action:
}
}
await Log("Update", data, entity);
}
/// <summary>
/// Gets the data of a specified object's properties in a dictionary.
/// </summary>
public static Dictionary <string, string> GetDataToLog(IEntity entity)
{
var result = new Dictionary <string, string>();
var type = entity.GetType();
var propertyNames = type.GetProperties().Select(p => p.Name).Distinct().Trim().ToArray();
Func <string, PropertyInfo> getProperty = name => type.GetProperties()
.Except(p => p.IsSpecialName)
.Except(p => p.GetGetMethod().IsStatic)
.Except(p => p.Name == "ID")
.Where(p => p.GetSetMethod() != null && p.GetGetMethod().IsPublic)
.OrderByDescending(x => x.DeclaringType == type)
.FirstOrDefault(p => p.Name == name);
var dataProperties = propertyNames.Select(getProperty).ExceptNull()
.Except(x => CalculatedAttribute.IsCalculated(x))
.Where(x => LogEventsAttribute.ShouldLog(x))
.ToArray();
foreach (var p in dataProperties)
{
var propertyType = p.PropertyType;
string propertyValue;
try
{
if (propertyType == typeof(IList <Guid>))
{
propertyValue = (p.GetValue(entity) as IList <Guid>).ToString(",");
}
else if (propertyType.IsGenericType)
{
propertyValue = (p.GetValue(entity) as IEnumerable <object>).ToString(", ");
}
else
{
propertyValue = p.GetValue(entity).ToStringOrEmpty();
}
if (propertyValue.IsEmpty())
{
continue;
}
}
catch
{
// No log needed
continue;
}
result.Add(p.Name, propertyValue);
}
return(result);
}
public static Task LogInsert(IEntity entity)
{
if (entity is IAuditEvent)
{
return(Task.CompletedTask);
}
if (!Config.Get <bool>("Database:Audit:Insert:Action"))
{
return(Task.CompletedTask);
}
if (!LogEventsAttribute.ShouldLog(entity.GetType()))
{
return(Task.CompletedTask);
}
var data = string.Empty;
if (Config.Get("Database:Audit:Insert:Data", defaultValue: true))
{
data = EntityProcessor.GetDataXml(entity);
}
return(Log("Insert", data, entity));
}
public IDictionary <string, Tuple <string, string> > GetUpdatedValues(IEntity original, IEntity updated)
{
if (original == null)
{
throw new ArgumentNullException(nameof(original));
}
var result = new Dictionary <string, Tuple <string, string> >();
var type = original.GetType();
var propertyNames = type.GetProperties().Distinct().Select(p => p.Name.Trim()).ToArray();
PropertyInfo getProperty(string name)
{
return(type.GetProperties()
.Except(p => p.IsSpecialName || p.GetGetMethod().IsStatic)
.Where(p => p.GetSetMethod() != null && p.GetGetMethod().IsPublic)
.OrderByDescending(x => x.DeclaringType == type)
.FirstOrDefault(p => p.Name == name));
}
var dataProperties = propertyNames.Select(getProperty).ExceptNull()
.Except(x => CalculatedAttribute.IsCalculated(x))
.Where(x => LogEventsAttribute.ShouldLog(x))
.ToArray();
foreach (var p in dataProperties)
{
var propertyType = p.PropertyType;
// Get the original value:
string originalValue, updatedValue = null;
if (propertyType == typeof(IList <Guid>))
{
try
{
originalValue = (p.GetValue(original) as IList <Guid>).ToString(",");
if (updated != null)
{
updatedValue = (p.GetValue(updated) as IList <Guid>).ToString(",");
}
}
catch
{
// No logging is needed.
continue;
}
}
else if (propertyType.IsGenericType)
{
try
{
originalValue = (p.GetValue(original) as IEnumerable <object>).ToString(", ");
if (updated != null)
{
updatedValue = (p.GetValue(updated) as IEnumerable <object>).ToString(", ");
}
}
catch
{
// No logging is needed.
continue;
}
}
else
{
try
{
originalValue = $"{p.GetValue(original)}";
if (updated != null)
{
updatedValue = $"{p.GetValue(updated)}";
}
}
catch
{
// No logging is needed
continue;
}
}
if (updated == null || originalValue != updatedValue)
{
if (result.LacksKey(p.Name))
{
result.Add(p.Name, new Tuple <string, string>(originalValue, updatedValue));
}
}
}
return(result);
}
