/// <summary>
/// Creates a new instance of <see cref="ColumnPropertyDescriptor"/> from a <see cref="PropertyDecoration"/> instance.
/// </summary>
/// <remarks>
/// If the property is not decorated with the <see cref="ColumnAttribute"/> the method will return <c>null</c>.
/// </remarks>
/// <param name="property">The property info to use.</param>
/// <returns>A column property descriptor or null otherwise.</returns>
internal static IColumnPropertyDescriptor Create(PropertyDecoration property)
{
if (property == null)
{
throw new ArgumentNullException(nameof(property), "The property collection can not be null.");
}
var descriptor = new ColumnPropertyDescriptor(property);
return(descriptor.Initialize() ? descriptor : null);
}
/// <summary>
/// Initializes the table type descriptor.
/// </summary>
private void Initialize()
{
var typeInfo = this.Type.GetTypeInfo();
var tableType = typeInfo.GetCustomAttribute <TableTypeAttribute>()?.Type ?? this.Type;
if (tableType != this.Type)
{
typeInfo = tableType.GetTypeInfo();
}
var tableAttribute = typeInfo.GetCustomAttribute <TableAttribute>();
if (tableAttribute == null)
{
throw new OrmMissingTableMappingException($"The type '{this.Type.Name}' does not have table mapping information.");
}
this.TypeName = this.Type.Name;
this.CatalogName = tableAttribute.Catalog;
this.SchemaName = tableAttribute.Schema;
this.TableName = tableAttribute.Name ?? tableType.Name;
var properties = this.GetProperties(this.Type, tableType);
this.AllProperties = ColumnPropertyDescriptor.Create(properties);
this.NavigationProperties = NavigationPropertyDescriptor.Create(this, properties);
foreach (var property in this.AllProperties)
{
if (property.IsPrimaryKey)
{
this.PrimaryKeyProperties.Add(property);
}
if (property.IsIdentity)
{
this.IdentityProperty = property;
}
else
{
this.SimpleProperties.Add(property);
}
}
if (this.PrimaryKeyProperties.Any())
{
this.DefaultPrimaryKeyValues = this.PrimaryKeyProperties.Select(x => x.PropertyType.GetDefaultValue()).ToList();
}
}
/// <summary>
/// Initializes the table type descriptor.
/// </summary>
private void Initialize()
{
var typeInfo = this.Type.GetTypeInfo();
this.AllProperties = ColumnPropertyDescriptor.Create(typeInfo.DeclaredProperties.Select(x => new PropertyDecoration(x, x.GetCustomAttributes().ToList())));
}