/// <summary>
/// Adds a new attribute to the model.
/// </summary>
/// <param name="desc">The descriptor.</param>
/// <returns>EntityAttr.</returns>
public virtual MetaEntityAttr AddEntityAttr(MetaEntityAttrDescriptor desc)
{
var attr = CreateEntityAttr(desc);
attr.Entity.Attributes.Add(attr);
AssignEntityAttrID(attr);
return(attr);
}
/// <summary>
/// Creates the entity attribute. Used for creating entity attributes while building the model
/// </summary>
/// <param name="desc">The descriptor</param>
/// <returns></returns>
public MetaEntityAttr CreateEntityAttr(MetaEntityAttrDescriptor desc)
{
if (desc == null)
{
throw new ArgumentNullException(nameof(desc));
}
var attr = CreateEntityAttrCore(desc.Parent, desc.Kind);
if (!string.IsNullOrEmpty(desc.Expression))
{
attr.Id = DataUtils.ComposeKey(desc.Parent?.Id, desc.Expression);
}
attr.Expr = desc.Expression;
attr.Caption = desc.Caption;
attr.DataType = desc.DataType;
attr.Size = desc.Size;
return(attr);
}
