public static ExpandoSelect Parse(HttpContext httpContext)
{
var expandoSelect = new ExpandoSelect();
if (httpContext == null)
{
return(expandoSelect);
}
httpContext.Request.Query.TryGetValue("$includes", out var includesValue);
expandoSelect.IncludesRawValue = includesValue;
var includes = includesValue.ToString().Split(",", StringSplitOptions.RemoveEmptyEntries).ToArray();
if (includes.Length > 0)
{
expandoSelect.Includes = includes;
}
httpContext.Request.Query.TryGetValue("$excludes", out var excludesValue);
expandoSelect.ExcludesRawValue = excludesValue;
var excludes = excludesValue.ToString().Split(",", StringSplitOptions.RemoveEmptyEntries).ToArray();
if (excludes.Length > 0)
{
expandoSelect.Excludes = excludes;
}
return(expandoSelect);
}
/// <summary>
/// 使用ExpandoSelect过滤expando属性
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="expando"></param>
/// <param name="expandoSelect"></param>
/// <returns></returns>
public static T ApplyExpandoSelect <T>(this T expando, ExpandoSelect expandoSelect) where T : ExpandoModel
{
if (expandoSelect.Includes.Count > 0)
{
expando.AddPropertyFilter(ExpandoPropertyFilterFactory.CreateIncludeFilter(expandoSelect.Includes.ToArray()));
}
if (expandoSelect.Excludes.Count > 0)
{
expando.AddPropertyFilter(ExpandoPropertyFilterFactory.CreateIncludeFilter(expandoSelect.Excludes.ToArray()));
}
return(expando);
}
/// <summary>
/// 使用ExpandoSelect过滤expando属性
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="expandos"></param>
/// <param name="expandoSelect"></param>
/// <returns></returns>
public static IEnumerable <T> ApplyExpandoSelect <T>(this IEnumerable <T> expandos, ExpandoSelect expandoSelect) where T : ExpandoModel
{
foreach (var expando in expandos)
{
if (expandoSelect.Includes.Count > 0)
{
expando.AddPropertyFilter(ExpandoPropertyFilterFactory.CreateIncludeFilter(expandoSelect.Includes.ToArray()));
}
if (expandoSelect.Excludes.Count > 0)
{
expando.AddPropertyFilter(ExpandoPropertyFilterFactory.CreateIncludeFilter(expandoSelect.Excludes.ToArray()));
}
yield return(expando);
}
}