public MixinEntityExpression(Type type, IEnumerable <FieldBinding> bindings, Alias mainEntityAlias, FieldMixin fieldMixin)
: base(DbExpressionType.MixinInit, type)
{
if (bindings == null)
{
throw new ArgumentNullException("bindings");
}
Bindings = bindings.ToReadOnly();
FieldMixin = fieldMixin;
MainEntityAlias = mainEntityAlias;
}
private BlockExpression MaterializeMixin(ParameterExpression me, FieldMixin mixin, ParameterExpression mixParam)
{
List <Expression> mixBindings = new List <Expression>();
mixBindings.Add(Expression.Assign(mixParam, GetMixin(me, mixin.FieldType)));
mixBindings.Add(Expression.Call(retriever, miModifiablePostRetrieving.MakeGenericMethod(mixin.FieldType), mixParam));
foreach (var f in mixin.Fields.Values)
{
Expression value = MaterializeField(f.Field);
var assigment = Expression.Assign(Expression.Field(mixParam, f.FieldInfo), value);
mixBindings.Add(assigment);
}
var mixBlock = Expression.Block(new[] { mixParam }, mixBindings);
return(mixBlock);
}
