If you have FormComponents in a ListView you need to call setReuseItems(true) on the ListView. Otherwise the ListItems will be recreated before rendering which results in them losing their "converted input" (what Wicket calls the submitted value).
Instead of simply calling setReuseItems(true) on the ListView, which would've solved the problem, it was instead replaced by a proper FormComponent for dealing with this exact case (a CheckboxMultipleChoice component). This reduces the amount of code required and more clearly communicates intent. The change required some minor test refactoring.
Fixes#33
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Now requires at least one project type to be selected before saving.
Fixes#34
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## How to test
1. Go to "Admin" / "Match" / "Application periods"
2. Click create new
3. Submit without selecting any types
4. See that there's proper feedback
5. Leave name blank and select some types
6. Submit
7. See that the project type selection sticks around
Co-authored-by: Nico Athanassiadis <nico@dsv.su.se>
Reviewed-on: #47
Reviewed-by: Nico Athanassiadis <nico@dsv.su.se>
Co-authored-by: Andreas Svanberg <andreass@dsv.su.se>
Co-committed-by: Andreas Svanberg <andreass@dsv.su.se>
Andreas Svanberg
f67f37ecdd