public override bool TryResolve(string name, out object value)
{
FastProperty prop = _reflection.GetGetter(name);
if (null != prop)
{
value = prop.GetValue(_params);
return(true);
}
else
{
value = null;
return(false);
}
}
protected virtual internal HttpResponseMessage UnmappedGetProperty(ODataPath odataPath)
{
int key;
if (!odataPath.GetNormalizedKey(1, out key))
{
return(Request.CreateErrorResponse(HttpStatusCode.BadRequest, WebApiGlobal.Error.NoKeyFromPath));
}
var entity = GetEntityByKey(key);
if (entity == null)
{
return(Request.CreateErrorResponse(HttpStatusCode.NotFound, WebApiGlobal.Error.EntityNotFound.FormatInvariant(key)));
}
FastProperty prop = null;
string propertyName = null;
var lastSegment = odataPath.Segments.Last();
var propertySegment = (lastSegment as PropertyAccessPathSegment);
if (propertySegment == null)
{
propertyName = lastSegment.ToString();
}
else
{
propertyName = propertySegment.PropertyName;
}
if (propertyName.HasValue())
{
prop = FastProperty.GetProperty(entity.GetType(), propertyName);
}
if (prop == null)
{
return(UnmappedGetProperty(entity, propertyName ?? ""));
}
var propertyValue = prop.GetValue(entity);
return(Request.CreateResponse(HttpStatusCode.OK, prop.Property.PropertyType, propertyValue));
}
public override bool TryResolve(string name, out object value)
{
//这里传入的name是字段名，根据字段名找到映射的属性
FastProperty prop = _mapping.GetMappingProperty(name);
//如果参数是实体对象，直接返回属性的值
if (null != prop && _sqlParams.IsObjectParameters() && prop.Info.DeclaringType.IsInstanceOfType(_rawParams))
{
value = prop.GetValue(_rawParams);
return(true);
}
//先找字段名
if (!_sqlParams.TryResolve(name, out value))
{
//再找属性名
if (null != prop && !prop.Name.Equals(name))
{
return(_sqlParams.TryResolve(prop.Name, out value));
}
return(false);
}
return(true);
}