public TypedEntity()
{
//v2: create the relation proxy collection
RelationProxies = new RelationProxyCollection(this);
//create the attributes
Func <TypedAttribute, bool> validateAdd = x =>
{
//if (FixedAttributeDefinitionAliases.AllAliases.Contains(x.AttributeDefinition.Alias))
// return true;
// TODO: Better validation here
if (EntitySchema == null)
{
return(true);
}
var composite = EntitySchema as CompositeEntitySchema;
if (composite != null)
{
return(composite.AllAttributeDefinitions.Any(y => y.Alias == x.AttributeDefinition.Alias));
}
return(EntitySchema.AttributeDefinitions.Any(y => y.Alias == x.AttributeDefinition.Alias));
};
Attributes = new TypedAttributeCollection(validateAdd);
Attributes.CollectionChanged += AttributesCollectionChanged;
}
public static bool TrySetValue(this TypedAttributeCollection attributeCollection, string attributeName, string value)
{
var attribute = attributeCollection.SingleOrDefault(x => x.AttributeDefinition.Alias == attributeName);
if (attribute == null)
{
return(false);
}
attribute.DynamicValue = value;
return(true);
}
private static void Add(this TypedAttributeCollection attributeCollection, TypedAttribute typedAttribute)
{
//NOTE: Here we need to generate an id for this item.
// Though Id generation should generally be performed by Hive providers, a TypedAttribute can exist without an
// id in the repository when a AttributeDefinition is created on the Schema and there are no TypeEntity revisions
// for that schema with the updated AttributeDefinition.
if (typedAttribute.Id.IsNullValueOrEmpty())
{
typedAttribute.Id = new HiveId(Guid.NewGuid());
}
attributeCollection.Add(typedAttribute);
}
/// <summary>
/// Sets
/// </summary>
/// <param name="attributeCollection"></param>
/// <param name="typedAttribute"></param>
public static void SetValueOrAdd(this TypedAttributeCollection attributeCollection, TypedAttribute typedAttribute)
{
var attribute = attributeCollection.SingleOrDefault(x => x.AttributeDefinition.Alias == typedAttribute.AttributeDefinition.Alias);
if (attribute == null)
{
attributeCollection.Add(typedAttribute);
}
else
{
attribute.Values.Clear();
typedAttribute.Values.ForEach(attribute.Values.Add);
}
}
/// <summary>
/// Adds a property to the collection if it doesn't exist and returns true, otherwise returns false
/// </summary>
/// <param name="attributeCollection"></param>
/// <param name="typedAttribute"></param>
/// <returns></returns>
public static bool TryAdd(this TypedAttributeCollection attributeCollection, TypedAttribute typedAttribute)
{
// First try to find an existing attribute by alias
var existing = attributeCollection.FirstOrDefault(x => x.AttributeDefinition.Alias == typedAttribute.AttributeDefinition.Alias);
// If it's null, add it
if (existing == null)
{
Add(attributeCollection, typedAttribute);
return(true);
}
// If the attribute exists, but its definition doesn't have an id, but the incoming one does, we should replace it
// This is for scenarios where, for example, an entity has been "setup" from a schema that didn't have ids set, and is then
// later re-setup from a schema that had ids for its definitions
if (existing.AttributeDefinition.Id == HiveId.Empty && typedAttribute.AttributeDefinition.Id != HiveId.Empty)
{
existing.AttributeDefinition = typedAttribute.AttributeDefinition;
}
return(false);
}
public TypedEntity()
{
//v2: create the relation proxy collection
RelationProxies = new RelationProxyCollection(this);
//create the attributes
Func<TypedAttribute, bool> validateAdd = x =>
{
//if (FixedAttributeDefinitionAliases.AllAliases.Contains(x.AttributeDefinition.Alias))
// return true;
// TODO: Better validation here
if (EntitySchema == null) return true;
var composite = EntitySchema as CompositeEntitySchema;
if (composite != null)
{
return composite.AllAttributeDefinitions.Any(y => y.Alias == x.AttributeDefinition.Alias);
}
return EntitySchema.AttributeDefinitions.Any(y => y.Alias == x.AttributeDefinition.Alias);
};
Attributes = new TypedAttributeCollection(validateAdd);
}
/// <summary>
/// Determines whether the specified attributes contains key.
/// </summary>
/// <param name="attributes">The attributes.</param>
/// <param name="key">The key.</param>
/// <returns>
/// <c>true</c> if the specified attributes contains key; otherwise, <c>false</c>.
/// </returns>
public static bool ContainsKey(this TypedAttributeCollection attributes, string key)
{
//dont' worry about casing..
return(attributes.Any(x => x.AttributeDefinition.Alias.InvariantEquals(key)));
}
