private static void Setup_SelectByKeyValueArray(SpecialLinqCommand command)
{
var member = command.Key.ExpandedKeyMembers[0].Member;
var listType = typeof(IList <>).MakeGenericType(member.DataType);
var listPrm = Expression.Parameter(listType, "@list");
var entType = command.Key.Entity.EntityType;
var pred = ExpressionMaker.MakeListContainsPredicate(member, listPrm);
var entSet = member.Entity.EntitySetConstant;
var entSetFiltered = ExpressionMaker.MakeCallWhere(entSet, pred);
var entSetOrdered = ExpressionMaker.AddOrderBy(entSetFiltered, command.OrderBy);
command.Lambda = Expression.Lambda(entSetOrdered, listPrm);
}
// Setup methods
private static void Setup_SelectByKey(SpecialLinqCommand command)
{
var key = command.Key;
var lockType = command.LockType;
var orderBy = command.OrderBy;
var entType = key.Entity.EntityType;
var prms = key.ExpandedKeyMembers.Select(m => Expression.Parameter(m.Member.DataType, "@" + m.Member.MemberName)).ToArray();
var pred = ExpressionMaker.MakeKeyPredicate(key, prms);
var entSet = (lockType == LockType.None) ? key.Entity.EntitySetConstant
: ExpressionMaker.MakeEntitySetConstant(entType, lockType);
var entSetFiltered = ExpressionMaker.MakeCallWhere(entSet, pred);
var entSetOrdered = ExpressionMaker.AddOrderBy(entSetFiltered, command.OrderBy);
var lambdaExpr = Expression.Lambda(entSetOrdered, prms);
command.Lambda = lambdaExpr;
}
public static Expression AddOrderByManyToMany(Expression linkEntSet, EntityInfo linkEnt, EntityMemberInfo targetProp,
List <EntityKeyMemberInfo> orderBy)
{
if (orderBy == null || orderBy.Count == 0)
{
return(linkEntSet);
}
var entSetOrdered = linkEntSet;
foreach (var km in orderBy)
{
if (km.Member.Entity == linkEnt)
{
entSetOrdered = ExpressionMaker.AddOrderBy(entSetOrdered, km.Member, km.Desc);
}
else
{
entSetOrdered = ExpressionMaker.AddOrderBy(entSetOrdered, km.Member, km.Desc, targetProp);
}
}
return(entSetOrdered);
}