/// <summary>
/// Returns an AssociationAttribute for the specified association member
/// </summary>
/// <param name="member">The metadata member corresponding to the association member</param>
/// <returns>The Association attribute</returns>
public System.ComponentModel.DataAnnotations.AssociationAttribute CreateAssociationAttribute(LightSpeedColumnProvider member)
{
var metaAssociation = member.Association;
string associationName = GetAssociationName(metaAssociation);
string thisKey = FormatMemberList(metaAssociation.ThisKey);
string otherKey = FormatMemberList(metaAssociation.OtherKey);
System.ComponentModel.DataAnnotations.AssociationAttribute assocAttrib = new System.ComponentModel.DataAnnotations.AssociationAttribute(associationName, thisKey, otherKey);
assocAttrib.IsForeignKey = metaAssociation.IsForeignKey;
return assocAttrib;
}
/// <summary>
/// Returns a collection of all the <see cref="Attribute"/>s we infer from the metadata associated
/// with the metadata member corresponding to the given property descriptor
/// </summary>
/// <param name="propertyDescriptor">A <see cref="PropertyDescriptor"/>.</param>
/// <returns>a collection of attributes inferred from metadata in the given descriptor</returns>
private IEnumerable<Attribute> GetEntityMemberAttributes(LightSpeedColumnProvider column, PropertyDescriptor propertyDescriptor)
{
List<Attribute> attributes = new List<Attribute>();
//MetaDataMember member = this._metaType.DataMembers.Where(p => p.Name == propertyDescriptor.Name).SingleOrDefault();
if (column != null)
{
if (column.IsPrimaryKey && propertyDescriptor.Attributes[typeof(KeyAttribute)] == null)
{
attributes.Add(new KeyAttribute());
}
if (column.Association != null)
{
if (propertyDescriptor.Attributes[typeof(System.ComponentModel.DataAnnotations.AssociationAttribute)] == null)
{
var assocAttrib =
this.TypeDescriptionContext.CreateAssociationAttribute(column);
attributes.Add(assocAttrib);
}
if(column.Association.IsEagerLoaded && propertyDescriptor.Attributes[typeof(IncludeAttribute)] == null)
{
attributes.Add(new IncludeAttribute());
}
}
if (column.IsExcluded && propertyDescriptor.Attributes[typeof(ExcludeAttribute)] == null)
{
attributes.Add(new ExcludeAttribute());
}
else
{
attributes.Add(new DataMemberAttribute());
}
//if (column.UpdateCheck != UpdateCheck.Never &&
// propertyDescriptor.Attributes[typeof(ConcurrencyCheckAttribute)] == null)
//{
// attributes.Add(new ConcurrencyCheckAttribute());
//}
//if (column.IsVersion &&
// propertyDescriptor.Attributes[typeof(TimestampAttribute)] == null)
//{
// attributes.Add(new TimestampAttribute());
//}
bool isStringType = propertyDescriptor.PropertyType == typeof(string) || propertyDescriptor.PropertyType == typeof(char[]);
if (isStringType && column.ColumnType != null && column.MaxLength > 0 &&
propertyDescriptor.Attributes[typeof(StringLengthAttribute)] == null)
{
attributes.Add(new StringLengthAttribute(column.MaxLength));
}
}
return attributes.ToArray();
}
public LightSpeedOneToOneIdAssociationProvider(LightSpeedColumnProvider fromColumn, LightSpeedTableProvider toTable, LightSpeedColumnProvider toColumn)
: base(fromColumn, toTable, toColumn)
{
Direction = AssociationDirection.OneToOne;
ThisKey = ForeignKeyNames = toColumn.Association.ForeignKeyNames;
OtherKey = new List<string> { "Id" };
}
public LightSpeedOneIdToOneAssociationProvider(LightSpeedColumnProvider fromColumn, LightSpeedTableProvider toTable, LightSpeedColumnProvider toColumn, List<string> foreignKeyNames)
: base(fromColumn, toTable, toColumn)
{
Direction = AssociationDirection.OneToOne;
ForeignKeyNames = foreignKeyNames.AsReadOnly();
OtherKey = ForeignKeyNames;
ThisKey = new List<string> { "Id" };
IsForeignKey = true;
}
protected LightSpeedAssociationProvider(LightSpeedColumnProvider fromColumn, LightSpeedTableProvider toTable, LightSpeedColumnProvider toColumn)
{
if(fromColumn == null)
throw new Exception("fromColumn must not be null in association");
FromColumn = fromColumn;
if (toTable == null)
throw new Exception("toTable must not be null in association");
ToTable = toTable;
if (toColumn == null)
throw new Exception("toColumn must not be null in association");
ToColumn = toColumn;
IsEagerLoaded = EagerLoad();
}
