[katello-devel] Custom Attributes for a System

[Bryan Kearney]

On 08/16/2012 04:37 AM, Dmitri Dolguikh wrote:
> On 16/08/12 04:59 AM, Jordan O'Mara wrote:
>>
>> ----- Original Message -----
>>> On 08/15/2012 04:42 PM, Adam Price wrote:
>>>> after looking at the email thread about key-value pairs for a
>>>> system, i put together a small design doc outlining what this
>>>> change entails. please look it over and make some comments.
>>>>
>>>> https://fedorahosted.org/katello/wiki/SystemsCustomAttributesDesign
>>>>
>>>> Brno guys, please specifically look over the cli portion. i want to
>>>> make sure we stay with the same command-style (naming, etc) as the
>>>> rest of the cli. thanks.
>>>>
>>> ouple of things:
>>>
>>> 1) How do I extend this to work for more than just systems? i would
>>> like
>>> to see this on many objects.
>>> 2) How do I set up all objects (in an org mind you) to add an
>>> attribute
>>> on each object. For example, In my org I would like all systems to
>>> have
>>> the AssetTag and Project fields. Then, whoever is defining a system
>>> will
>>> see these fields. As a bonus, can I give them a type and some type of
>>> regex to validate?
>> I think these two problems could be solved with the same design. Make
>> the attributes table generic
>> and give any object you want to "Factify" and add a foreign key to
>> that table.
> +1, but I think we need an additional table to constrain what custom
> attributes are available on what object.
>>
>> Then, you can create arbitrary rules for fact summation. For example,
>> a system's facts are the union of
>>
>> the system + the org + the environment
>>
>> Or something like that
>>
>>> 3) can I gemify this to share it with aeolus?
>> IMO this design (as it is now) is not easily exportable to other
>> projects since its basically a single AR model and some FKs
> I think it's doable - there are rails plugins that extend project
> schema. Tom - did you figure out what retrieval/addition/removal of
> key-values is going to look like from API perspective?
>
> -d
>
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Lets rework based on the comments here and send out again.

-- bk