protected ActionParameterInfo(ActionInfo action)
{
this.Action = action;
}
public ReflectedMvcActionParameterInfo(ParameterInfo paramInfo, ActionInfo action)
: base(action)
{
this.paramInfo = paramInfo;
}
public DescribedHttpActionParameterInfo(HttpParameterDescriptor paramDescr, ActionInfo action)
: base(action)
{
this.paramDescr = paramDescr;
this.reflectedParamDescr = this.paramDescr as ReflectedHttpParameterDescriptor;
}
protected ActionParameterInfo(ActionInfo action)
{
this.Action = action;
}
void CheckDefaultActions(IEnumerable <ActionInfo> actions)
{
// - Index is the default action by convention
// - You can use [DefaultAction] to override the convention
// - Can only be applied to one action per controller type
// - Can be inherited from base controller
// - Derived controllers can override the inherited [DefaultAction] by applying it to a different action
// - Default action cannot have required route parameters (either no parameters or all optional)
Func <ActionInfo, bool> correctRouteParameterSetup = a =>
a.RouteParameters.Count == 0 ||
a.RouteParameters.All(p => p.IsOptional);
ActionInfo defaultAction = null;
Type attrType = this.Provider.DefaultActionAttributeType;
if (attrType != null)
{
var defaultActions =
(from a in actions
where a.GetCustomAttributes(attrType, inherit: false).Any()
select a).ToArray();
if (defaultActions.Any())
{
var byDeclaringType =
from a in defaultActions
group a by a.DeclaringType;
if (defaultActions.Length > byDeclaringType.Count())
{
throw new InvalidOperationException(
"{0} can only be used once per declaring type: {1}.".FormatInvariant(attrType.FullName, byDeclaringType.First(g => g.Count() > 1).Key.FullName)
);
}
for (Type t = this.Type; t != null; t = t.BaseType)
{
defaultAction = defaultActions.SingleOrDefault(a => a.DeclaringType == t);
if (defaultAction != null)
{
if (!correctRouteParameterSetup(defaultAction))
{
throw new InvalidOperationException(
"Default actions cannot have required route parameters: {0}.".FormatInvariant(
String.Concat(defaultAction.DeclaringType.FullName, ".", defaultAction.MethodName, "(", String.Join(", ", defaultAction.Parameters.Select(p => p.Type.Name)), ")")
)
);
}
break;
}
}
}
}
if (defaultAction == null)
{
defaultAction = actions.FirstOrDefault(a => ActionInfo.NameEquals(a.Name, "Index") && correctRouteParameterSetup(a));
}
if (defaultAction != null)
{
defaultAction.IsDefaultAction = true;
}
}
public DescribedMvcActionParameterInfo(ParameterDescriptor paramDescr, ActionInfo action)
: base(action)
{
this.paramDescr = paramDescr;
this.reflectedParamDescr = paramDescr as ReflectedParameterDescriptor;
}
