/// <summary>
/// 根据指定的查询参数查询用户句柄。
/// </summary>
/// <param name="query">查询参数。</param>
/// <returns>一个包含了所有满足查询条件的用户句柄的查询结果对象。</returns>
/// <exception cref="ArgumentNullException"/>
public ReadOnlyCollection <UserHandle> QueryUsers(UserQueryParameter query)
{
if (query == null)
{
throw new ArgumentNullException(nameof(query));
}
if (query.QueryByOrganization && query.Organization == null)
{
throw new ArgumentNullException(nameof(query.Organization));
}
bool hasQuery = query.QueryByOrganization || query.QueryByUsergroup;
if (!hasQuery)
{
// 没有查询参数。返回空列表。
return(new ReadOnlyCollection <UserHandle>(new List <UserHandle>()));
}
else
{
return(m_factory.WithContext(context =>
{
IQueryable <UserProfileEntity> profiles = context.GetAllUserProfiles();
if (query.QueryByOrganization)
{
profiles = UserDataContext.QueryUserProfileEntitiesByOrganization(profiles, query.Organization);
}
if (query.QueryBySex)
{
profiles = UserDataContext.QueryUserProfileEntitiesBySex(profiles, (NativeUserSex)query.Sex);
}
if (query.QueryByUsergroup)
{
profiles = UserDataContext.QueryUserProfileEntitiesByUsergroup(profiles,
(NativeUserGroup)query.UserGroup);
}
// 对查询结果进行排序以准备随时分页。
profiles.OrderBy(item => item.Username);
if (query.EnablePageQuery)
{
profiles = profiles.Page(query.PageQuery);
}
List <UserHandle> handles = new List <UserHandle>();
foreach (UserProfileEntity ent in profiles)
{
handles.Add(UserHandle.FromUserProfileEntity(ent));
}
return new ReadOnlyCollection <UserHandle>(handles);
}));
}
}
/// <summary>
/// 根据指定的查询参数查询用户句柄。
/// </summary>
/// <param name="query">查询参数。</param>
/// <returns>一个列表，列表中包含了所有满足查询条件的用户句柄。</returns>
/// <exception cref="ArgumentNullException"/>
public IList <UserHandle> QueryUsers(UserQueryParameter query)
{
if (query == null)
{
throw new ArgumentNullException(nameof(query));
}
if (query.QueryByUsername && query.Username == null)
{
throw new ArgumentNullException(nameof(query.Username));
}
if (query.QueryByOrganization && query.Organization == null)
{
throw new ArgumentNullException(nameof(query.Organization));
}
if (query.QueryByUsername)
{
// 从用户名开始查找。
// 由于满足条件的实体对象至多一个，做特殊化处理。
UserProfileEntity profile = m_context.QueryUserProfileEntity(query.Username);
if (profile == null)
{
// 未找到符合要求的实体对象。
return(new List <UserHandle>());
}
else
{
// 检查其他条件是否满足。
if (query.QueryByOrganization && string.Compare(query.Organization, profile.Organization, false) != 0)
{
return(new List <UserHandle>());
}
if (query.QueryByUsergroup && profile.UserGroup != (NativeUserGroup)query.UserGroup)
{
return(new List <UserHandle>());
}
// 唯一的用户信息实体对象满足条件。
return(new List <UserHandle>()
{
UserHandle.FromUserProfileEntity(profile)
});
}
}
else // query.QueryByUsername == false
{
bool hasQuery = query.QueryByOrganization || query.QueryByUsergroup;
if (!hasQuery)
{
// 没有查询参数。返回空列表。
return(new List <UserHandle>());
}
else
{
IQueryable <UserProfileEntity> profiles = m_context.GetAllUserProfiles();
if (query.QueryByOrganization)
{
profiles = UserDataContext.QueryUserProfileEntitiesByOrganization(profiles, query.Organization);
}
if (query.QueryByUsergroup)
{
profiles = UserDataContext.QueryUserProfileEntitiesByUsergroup(profiles,
(NativeUserGroup)query.UserGroup);
}
List <UserHandle> handles = new List <UserHandle>();
foreach (UserProfileEntity entity in profiles)
{
handles.Add(UserHandle.FromUserProfileEntity(entity));
}
return(handles);
}
}
}
