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https://issues.apache.org/jira/browse/ISIS-785?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dan Haywood updated ISIS-785:
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Fix Version/s: (was: viewer-wicket-1.7.0)
viewer-wicket-1.8.0
> Implement @BulkParam annotation for executing the same action over a
> Collection of entities
> -------------------------------------------------------------------------------------------
>
> Key: ISIS-785
> URL: https://issues.apache.org/jira/browse/ISIS-785
> Project: Isis
> Issue Type: Improvement
> Components: Core, Viewer: Wicket
> Reporter: Oscar Bou
> Assignee: Dan Haywood
> Fix For: viewer-wicket-1.8.0
>
>
> (I've cloned this from ISIS-764, which has now been "repurposed" to some
> prereq work that will help in implementing this story).
> As an Isis user
> I want to pass as an action parameter a collection of entities
> In order to avoid repetitive work to the end-user
> The idea is to being able to annotate one of the action params with a new
> annotation, named @BulkParam, such as in:
> public class TodoItem {
> ...
> private TodoItem parentTodoItem;
> ....
> public void addRelatedTodo(@Named("To-Do Item") @BulkParam TodoItem
> todoItem, @Named("Comments") String comments) {
> ....
> }
> ...
> }
> Where the viewer founds it, instead of asking for one TodoItem, it will allow
> the user to select multiple items.
> Once done, it will execute the action multiple times, passing each time one
> of the TodoItem selected.
> If there are other params, the viewer will pass on each action invokation the
> same value for all them.
> Only one param can be annotated with @BulkParam, for avoiding combinatorial
> explosion (10 items selected of one param, 10 items on the other param would
> require to be execute 100 times, one for each combination).
> The User Interface could be adapted to the choices or autocomplete parameter
> facets, for easing the work of the user.
> If "choices", there can be alternative displays (see
> https://plugins.jquery.com/tag/multiselect/):
> 1. the viewer can present the user a grid or checkbox (like the one in
> http://liveline.github.io/jquery-checkallbox/) with all choices, and the user
> can check any of them. Alternative:
> http://www.ryancramer.com/journal/entries/select_multiple/
> 2. multi-select drop-down, like this ones:
> http://ivaynberg.github.io/select2/, http://harvesthq.github.io/chosen/,
> https://github.com/ehynds/jquery-ui-multiselect-widget,
> http://www.droplist.vinmein.com/. They require minimal changes on the current
> actions dialog, but does not allow to always view all choices selected (I
> could live with it).
> If "autocomplete":
> 1. It could be based on a two panels disposition, left and right, where the
> user incrementally searches on an edit box placed over the left panel,
> similar to current autocomplete implementation, but placing on the left panel
> : http://quasipartikel.at/multiselect_next/
> 2. Similar approach to the "choices" one, also with this same widget that
> admits remote dataset loading and min number of chars entered:
> http://ivaynberg.github.io/select2/
> As seen, a widget like http://ivaynberg.github.io/select2/ would allow to
> solve both situations without requiring much changes on the viewer’s action
> dialog.
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