Place Parameters

[Craig Greenhalgh]

Hi,

Whats the best way to pass parameters from one place/activity to another
place/activity ?

I have a simple list place and would like to link into a view place

Many thanks

Craig

[Jens]

In your ListActivity just call placeController.goTo(new DetailPlace(<parameters>)) when an item is selected in the list. The ListActivity define the parameter values and the DetailActivity uses them.

Is that what you mean?

-- J.

[Craig Greenhalgh]

I've got the link working and add parameters to my place. I use gin so
I have placeProviders:

TypeViewPlace viewPlace = typeViewPlaceProvider.get();
viewPlace.setId(type.getId());

placeController.goTo(viewPlace);

How in my ViewActivity to I get these parameters back in then load the
data ?

Many thanks for your help

Craig

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[Jens]

In your ActivityMapper's getActivity(Place place) method you have to set the Place into your activity before returning it. I also use GIN so I have ActivityProviders in my ActivityMapper. All my activities extend a custom super class that provides a setPlace(Place place) method and a typically code snippet in my ActivityMapper looks like:

if(place instanceof MyPlace) {

  MyActivity activity = this.myActivityProvider.get();

  activity.setPlace((MyPlace) place);

  return activity;

}

In the activity itself I just copy the place data into variables of the activity (so just this.parameter = place.getParamter()). As setPlace() is always called before the activitie's start method I have all information I need to actually start the activity.

-- J.

[Craig Greenhalgh]

Hi this now works fine on the from list > view page and all is expected
in the browser url

How do I go about getting the bck and fwd buttons working, or manually
altering the url to serve the correct page ?

Currently in my Activity Mapper I set the "id" for the activity based on
the incoming place request. When I use bck / fwd / manually alter this
is always "null"

Any ideas?

Many thanks

Craig

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