Updating binary links

Bart Pietercil bart.pietercil at gmail.com
Fri Feb 16 09:14:06 CST 2007


Hi Ruslan,

where in Mantis should I file the request ?
Under Issues--Kernel ?

There is no real page for feature request is there ?

Bart Pietercil

On 16-feb-07, at 10:38, Ruslan Zasukhin wrote:

> On 16/2/07 10:16 AM, "Danny Lewkin" <daniel.lewkin at cognosis.be> wrote:
>
> Hi Danny,
>
>> I have to 2 tables, tbl_usertypes and tbl_users. Between them there
>> is a binary link, lnkusertype (so without objectpointers of foreign
>> key).
>
> And they are M:M, yes?
>
>> I already have records in the tables, linked to eachother.
>
>> If I want to change the usertype of a user, it's clear to me that I
>> have to change the link between that user in the tbl_user and the
>> usertype in tbl_usertype.
>
> yes
>
>> But I can't seem to find any other way to do this, other than first
>> unlink the existing link user-usertype, en linking it again.
>> Or is there another "update link" method in API or an "update link"
>> SQL function, that I hav missed?
>
> No, because I do not see HOW this can be written.
>
> If you compare to MM link-table you also need do
>
>     DELETE
>     INSERT
>
> Hmm, you know, may be we can do something as
>
>
>     REPLACE link_name (r1,r2) ON (r1', r2')
>
> This can work...
>
> Can you add such request to Mantis?
>
>
> -- 
> Best regards,
>
> Ruslan Zasukhin
> VP Engineering and New Technology
> Paradigma Software, Inc
>
> Valentina - Joining Worlds of Information
> http://www.paradigmasoft.com
>
> [I feel the need: the need for speed]
>
>
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