private static void ValidateAll(EntityBase bob)
{
if (bob == null)
return;
bob.Validate(); // validate the object itself.
// validate any bob properties of the object, (and walk into those objects)
foreach (string s in bob._entityProperties)
{
EntityBase nestedObject = GetBusinessObjectFromProperty(s, bob);
ValidateAll(nestedObject);
}
// validate any bob collections on the object, (and walk into those collections)
foreach (string s in bob._entityCollectionProperties)
{
IList<EntityBase> list = GetBusinessObjectCollectionFromProperty(s, bob);
foreach (EntityBase bobItem in list)
{
ValidateAll(bobItem);
}
}
}
private static int BrokenRulesCount(EntityBase bob)
{
if (bob == null)
return 0;
int broken = 0;
broken += bob._broken.Count;
foreach (string s in bob._entityProperties)
{
broken += BrokenRulesCount(GetBusinessObjectFromProperty(s, bob));
}
foreach (string s in bob._entityCollectionProperties)
{
IList<EntityBase> bobList = GetBusinessObjectCollectionFromProperty(s, bob);
foreach (EntityBase bobItem in bobList)
{
broken += BrokenRulesCount(bobItem);
}
}
return broken;
}
public static string ValidationErrorMessage(EntityBase bob, bool includeNestedObjects)
{
if (bob == null)
return string.Empty;
string message = string.Empty;
foreach (ValidationRuleBase r in bob._broken)
{
if (!string.IsNullOrEmpty(message))
message += Environment.NewLine;
message += string.Format("{0}: {1}", r.PropertyName, r.RuleBrokenMessage);
}
if (!includeNestedObjects)
return message;
foreach (string s in bob._entityProperties)
{
message += ValidationErrorMessage(GetBusinessObjectFromProperty(s, bob), includeNestedObjects);
}
foreach (string s in bob._entityCollectionProperties)
{
IList<EntityBase> bobList = GetBusinessObjectCollectionFromProperty(s, bob);
foreach (EntityBase bobItem in bobList)
{
message += ValidationErrorMessage(bobItem, includeNestedObjects);
}
}
return message;
}
/// <summary>
/// Helper method that fetches a collection based on a property name.
/// </summary>
private static IList<EntityBase> GetBusinessObjectCollectionFromProperty(string collectionProperty, EntityBase bob)
{
Type t = Core.Data.Connection.GetConcreteType(bob);
PropertyInfo p = t.GetProperty(collectionProperty,
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.GetProperty);
if (p == null)
throw new ArgumentException("Property " + collectionProperty + " does not exist or is inaccessable.");
object o = p.GetValue(bob, BindingFlags.GetProperty, null, null, null);
if (o is IList<EntityBase>)
return (IList<EntityBase>)o;
else
{
IList list = o as IList;
List<EntityBase> genericList = new List<EntityBase>();
foreach (EntityBase bobItem in list)
{
genericList.Add(bobItem);
}
return genericList;
}
}
/// <summary>
/// Helper method to get the business object value
/// of a property by name.
/// </summary>
private static EntityBase GetBusinessObjectFromProperty(string property, EntityBase bob)
{
Type t = Core.Data.Connection.GetConcreteType(bob);
PropertyInfo p = t.GetProperty(property,
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.GetProperty);
if (p == null)
throw new ArgumentException("Property " + property + " does not exist or is inaccessable.");
object o = p.GetValue(bob, BindingFlags.GetProperty, null, null, null);
return (EntityBase)o;
}
/// <summary>
/// Checks if given object has the same
/// business signature as the object.
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
protected bool HasSameBusinessSignature(EntityBase obj)
{
return GetHashCode().Equals(obj.GetHashCode());
}
/// <summary>
/// Determines if a given object has been persisted to the database.
/// </summary>
/// <param name="entity">The object to examine.</param>
/// <returns>True if the object has been persisted, otherwise false.</returns>
public static bool IsTransient(EntityBase entity)
{
return entity.ID == null;
}
/// <summary> /// Determines if the given entity complies with this rule. /// </summary> /// <returns>True if the entity complies; otherwise false.</returns> public abstract bool IsValid(EntityBase entity);