[FLOW3-general] uniq uid

[Sam Duff]

In addition to my last post, you shouldn't need to do any DB reads directly
from the database unless you're implementing the read side of a CQRS
solution. Its best to construct useful and self-explanatory queries through
your Repository.

Kind regards,

Sam Duff


On Thu, Aug 11, 2011 at 8:35 AM, Sam Duff <skduff at gmail.com> wrote:

> To understand why UUIDs are used you really need to understand Domain
> Driven Design and why Aggregates and Entities need a globally unique ID, not
> just a unique ID for a specific database table.
>
> http://en.wikipedia.org/wiki/Domain-driven_design
>
> Kind regards,
>
> Sam Duff
>
>
>
> On Thu, Aug 11, 2011 at 2:15 AM, Dawid Pacholczyk <dpacholczyk at gmail.com>wrote:
>
>> Hi
>>
>> [quote]
>> In this context the word unique should be taken to mean "practically
>> unique" rather than "guaranteed unique"
>> [/quote]
>>
>> Now I rly don`t understand why normal int wasn`t used as a primary key.
>> Beside I can`t sort with this key.
>>
>> For example when I have integer uid i can always use
>>
>> select * from table order by uid desc
>>
>> Now it`s impossible. Can some of the authors explain what were your
>> motivations ?
>>
>> Best regards,
>> Dawid Pacholczyk
>>
>> p.s. Don`t get me wrong. FLOW3 is great but I see only disadvantages in
>> this solution
>>
>> W dniu 2011-08-10 10:15, Christian Jul Jensen pisze:
>>
>>> Hi David
>>>
>>> Dawid Pacholczyk wrote:
>>>
>>>> I guest this is like UID in TYPO3. I want to ask why it`s varchar with
>>>> long strings and not standard auto incremented integer ?
>>>>
>>>
>>> FLOW3 uses UUIDs as ids, they are not integers, see
>>> http://en.wikipedia.org/wiki/**Universally_unique_identifier<http://en.wikipedia.org/wiki/Universally_unique_identifier>
>>>
>>> I am not sure exactly which uuid scheme is used.
>>>
>>>
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>>
>
>