Hello,

Am 08.10.2011 um 16:25 schrieb Christian Voelker:

> Now for the three optional vocabulary.plugin properties 
> 
>> hierarchy.store, hierarchy.suggest and delimiter.
> 
> (…)
> 
> The hierarchy.suggest made me paricularly curious. However I could not find 
> any effect, turning this boolean to true or false while having 
> choices.presentation set to suggest. I was not able to test every possible 
> combination, but I set both hierarchy.store and hierarchy.suggest explicitly 
> to false and tried all three possible values for choices.presentation with no 
> visible effect. I also could not find any information about these two values 
> throughout DSpace Docs, not even in the Developer Doc mentioned above.

With all these tests, I was wrong here:

Setting hierarchy.store to false and choices.presentation to suggest, you only 
get the leaf value, which might make a big difference depending on the 
structure of you vocabulary. In our case 3.31 ist always located below 3.3, 
which also limits the amount of possible value below each level to nine. As 
such the leaf value alone is always disctinct in this vocabulary.
The delimiter is without meaning when setting both hierarchy.store and 
hierarchy.suggest to false. However with hierarchy.suggest left at its default 
value true, the list of options shows the whole path and gives orientation to 
the user. When choosing from the list, only the last part of what is displayed 
gets entered into the field. The delimiter is visible in the suggestions but 
not to be seen in the stored value.

Also, the awkward entry method described before with arrow keys and Tab can be 
slightly improved. You need to choose using arrow keys from the list of options 
offered. However, if you manage not to touch the list and the entry field while 
moving the cursor to the Add button, then you can use mouse or trackpad without 
hitting Tab before.

Bye, Christian


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