This change moves controller creation to the stage immediately before
model binding. The controller will be disposed/released before Resource
Filters run their 'OnResourceExecuted' method. Previously the controller's
lifetime surrounded all filter invocation.
Additionally, the Controller property is now gone from ActionContext, and
is moved to the 4 filter contexts that should have access to it
Action*Context and Result*Context.
This is a new filter stage that surrounds the existing model binding,
action, and result parts of the pipeline. Resource Filters run after
Authorization Filters.
The other major change is to support one of the primary scenarios for
Resource Filters. We want a filter to be able to modify the inputs the
model binding (formatters, model binders, value providers, etc) -- this
means that those changes need to be held on a context object and preserved
so that they can be used in the controller.
So, IActionBindingContextProvider is removed - the ActionBindingContext
will be created by the invoker. For now it will be part of the action
context.
- ensure `ViewDataDictionary` constructors are not passed a `null` or
`Mock.Of<IModelMetadataProvider>()` instance
- `ViewDataDictionary` constructors always use the `IModelMetadataProvider`
- `viewData.ModelMetadata` now never `null`
- `ViewDataDictionary<int>.Model` no longer throws if read before it's written
- `ViewDataDictionary.ModelMetadata` now copied to new instances in fewer cases
- e.g. don't use unusual `object` datatype with customized `ModelMetadata`
Ryan Nowak
Doug Bunting
Stephen Halter
David Fowler
Pranav K