Raw ID from Boss DB model?

[aloharich]

Using a model with BossDB, the "id" appears to prepend the table name,

So   Model:id()  returns "model-1" for example.

Some of our relationships can't be modeled completely with the ORM, so additional raw queries are needed using the actual ID (ie 1, not model-1).

Are there any methods or ways to configure the model to provide access to the raw id (versus having to hack the :id() result to parse it).

[Evgeny M]

Afaik there are no such mehods

Just add a method 

  

 int_id() -> 

       [_, IId] = string:tokens(Id, "-"), 

       list_to_integer(IId).

or something like this to your models.

вторник, 30 декабря 2014 г., 0:51:38 UTC+3 пользователь aloharich написал:

[Graeme Defty]

This may not be important to you, but bear in mind that record Ids are an opaque data element, and your code will break with other databases. I use the whole string as the record key in Mnesia, and I suspect the (at least some of) the non-SQL databases do the same thing.

Cheers,

g

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[David Welton]

On Wed, Dec 31, 2014 at 11:39 AM, Graeme Defty <graeme...@gmail.com> wrote:
>
> This may not be important to you, but bear in mind that record Ids are an opaque data element, and your code will break with other databases. I use the whole string as the record key in Mnesia, and I suspect the (at least some of) the non-SQL databases do the same thing.

I don't think it's possible to write a complex application without
going to SQL (or whatever low-level thing people use for other
systems), as things currently stand.

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David N. Welton

http://www.welton.it/davidw/

http://www.dedasys.com/

[Graeme Defty]

I am not sure what you would call complex, but my application has 43 models (tables) and 23 controllers, all on Mnesia and of course all without SQL.

I suspect that I am paying a price in performance, but my application is such that scalability is not a major issue.

BTW I would be interested to know if anyone else is using Mnesia.

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