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Re: Versioning




sergey@total-knowledge.com wrote:
> Another question, just to clarify. Looks like this statement is no longer
> valid:
>
>   
>>> New versions aren't created even if object links
>>> are changed, until object is published.
>>>       
>
> Is it true?
>   
"until object is published". Of course the statement above still holds true.
> If we look at "minor edit" and "UMO linking" as at 2 completely
> independent events that may happen during editing process, I'm totaly OK
> with that.
> However those events may happen in any order, linking may be done after
> publishing. It means that 2 versions of U will be created - U-4 after
> publishing based on U-3 and U-5 after linking based on U-4.
> This will certainly keep things easier for us, but, on the other hand,
> from UU point of view it's better to force Author to complete all his
> changes in only one version - UU-4. And I don't see any user-friendly way
> to force Authors to do that except some ugly alert on "Publish" event:"Did
> you finish your linking for this object?".
> By the way, what if Author wants to link to U-3 not just C, but several
> others? Create multiple versions for each assignment? Maybe multiple
> assignments that I suggested will help here?
> Anyways, maybe creating new version after each change is not such a good
> idea?
>
>
>
>   
>> Let's look at this scenario this way.
>> Let's say UMO U has 3 versions: U-1, U-2, U-3.
>> 1. Author opens U for edit, actually sees U-3 version b/c it's the HEAD
>> version and the only one that available for editing.
>> 2. Author tries to link to U another UMO C (C previously wasn't linked to
>> U, or better say, to U-3. If it was, Author gets a warning that "Umo C
>> already linked to UMO U")
>> 3. UU prompts Author to confirm the creation of the new version of U: U-4.
>> 4. Author confirms.
>> 5. UU creates new version U-4(still unpublished). U-4 has C as a child
>> UMO.
>> 6. Author performs minor edits to U-4.
>> 7. Author publishes U-4.
>>
>> Questions:
>> What happens to U-4 if Author quits without publishing after steps 5 or 6
>> above? UMO C already linked to U-4. Are we going to unlink it then? Maybe
>> step 5 should be after step 7?
>>
>>
>>     
>>> And perhaps add a warning, something along the lines of
>>> "You are about to create new version now. Do you want to proceed?"
>>>
>>> So, full use case will be something like:
>>>
>>> 1. User opens an object for edit.
>>> 2. User tries to change an UMO link
>>> 3. UU prompts user to confirm new version creation
>>> 4. User confirms
>>> 5. UU creates new (and unpublished) version of an object
>>>     and with requested UMO linking change done.
>>> 6. All further changes are accepted without creating new version
>>> 7. User publishes UMO.
>>>
>>> This scenario presumes following things:
>>> 1. We only allow versioned edits of "head" version - that is the
>>>     latest version of an UMO
>>> 2. User is trying to edit HEAD version (changes to the scenario
>>>     for other cases are left as an exercise to the reader)
>>> 3. UMO cannot be "unpublished" once it is published.
>>>
>>> These requirements weren't clearly defined previously
>>> (nor, in fact, were they discussed before). Now is the time to
>>> voice your concerns, and propose solutions. Otherwise I'll
>>> put this into the spec.
>>>
>>>
>>> --
>>> Ilya A. Volynets-Evenbakh
>>> Total Knowledge. CTO
>>> http://www.total-knowledge.com
>>>
>>>
>>>       
>>
>>     
>
>
>   

-- 
Ilya A. Volynets-Evenbakh
Total Knowledge. CTO
http://www.total-knowledge.com


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