/// <summary>
/// 包含导航属性（EntityRef or EntitySet）
/// </summary>
public Includer Include(EntityMemberType memberType, ushort memberId)
{
EnsureIsNavigationMember(MemberType);
if (Childs == null)
{
var res1 = new Includer(this, memberType, memberId);
Childs = new List <Includer> {
res1
};
return(res1);
}
var found = Childs.FindIndex(t => t.MemberId1 == memberId);
if (found >= 0)
{
return(Childs[found]);
}
var res = new Includer(this, memberType, memberId);
Childs.Add(res);
return(res);
}
/// <summary>
/// 新建子级
/// </summary>
private Includer(Includer parent, EntityMemberType memberType, ushort memberId)
{
EnsureIsNavigationMember(memberType);
Parent = parent ?? throw new ArgumentNullException(nameof(parent));
MemberType = memberType;
MemberId1 = memberId;
}
/// <summary>
/// 用于直接包含引用成员的字段，如t.Customer.Region.Name
/// </summary>
public Includer Include(string aliasName, ushort mid1, ushort mid2, ushort mid3 = 0)
{
if (rootIncluder == null)
{
rootIncluder = new Includer(modelId);
}
return(rootIncluder.Include(aliasName, mid1, mid2, mid3));
}
/// <summary>
/// 用于Include EntityRef or EntitySet
/// </summary>
public Includer Include(EntityMemberType memberType, ushort memberId)
{
if (rootIncluder == null)
{
rootIncluder = new Includer(modelId);
}
return(rootIncluder.Include(memberType, memberId));
}
private Includer(Includer parent, string alias, ushort mid1, ushort mid2, ushort mid3 = 0)
{
Parent = parent ?? throw new ArgumentNullException(nameof(parent));
MemberType = EntityMemberType.DataField; //仅DataField
AliasName = alias;
MemberId1 = mid1;
MemberId2 = mid2;
MemberId3 = mid3;
}
/// <summary>
/// 直接包含引用对象的字段,如order=>order.Customer.Name, 执行时作为Entity实例的附加成员
/// </summary>
/// <param name="alias">引用对象的成员的别名</param>
public Includer Include(string alias, ushort mid1, ushort mid2, ushort mid3 = 0)
{
EnsureIsNavigationMember(MemberType);
if (Childs == null)
{
Childs = new List <Includer>();
}
//TODO:考虑判断重复
var res = new Includer(this, alias, mid1, mid2, mid3);
Childs.Add(res);
return(res);
}
