Colin Viebrock wrote:
> On 29-Apr-07, at 7:41 AM, mouss wrote:
>
>
>>> Some of the aliases in the MySQL table are wildcards, yes.
>>>
>>> I suppose the "right way" to handle this would be to duplicate all
>>> the "domain1.tld" aliases as "domain2.tld", instead of wildcards?
>>>
>>>
>> yes. with mysql, you can avoid duplication if you only have "1
>> recursion depth" aliases (or 2. but high recursion depths
>> complicate the
>> query). make the query return a value only if the target address
>> exists.
>>
>
> Actually I just checked, since I'm using PostfixAdmin to manage
> theses virtual domain aliases. The table has entries like:
>
> +---------------------+-------------------+
> | address | goto |
> +---------------------+-------------------+
> | @anewpark.org | @anewpark.ca |
> | @anewpark.net | @anewpark.ca |
> | @anewpark.com | @anewpark.ca |
> +---------------------+-------------------+
>
> I suppose these would still be considered "wildcards", even though
> they don't have asterisks?
>
yes, they are. and this is horrible because you don't need such things
in mysql. the general rule is: if you put structure in your fields, then
you misdesigned your tables.
alias domains can be implemented with "simple" (not composite) field
like this:
query = select concat (user, '@', domain) from User, Alias_Domain where
user = '%u'
and
domain = target_domaina
and
alias_domain = '%d'
with a User table that contains {user, domain} fields (you can add more
and adjust the query above) and an Alias_Domain table that contains
{alias_domain, target_domain} fields. you can of course have a Domain
table with many fields if you prefer...
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