Re: [gnome-db] query_condition

["Vivien Malerba" <vmalerba gmail com>]

On 4/26/07, Piotr Pokora <piotrek pokora gmail com> wrote:
> Hi!
>
> How should be gda_query_condition_new_from_sql used?
> I try this:
>
> cond = gda_query_condition_new_from_sql(query,
>                         " colA='abc' AND colB=1 ",
>                         NULL, NULL);
>
> and error thrown:
> ** ERROR **: file gda-query-parsing.c: line 1647 (parsed_create_value_query_field): assertion failed: (gdatype != G_TYPE_INVALID)

Which version of Libgda are you using?

> Is there any possibility to instatiate query condition without query and sets its query later?

No, as the query is needed by the constructor.

> Use case: I want to create query condition object and pass it as function argument.
> Query object is created in this function so I can not set condition's query property.

Why then don't you pass the string ("colA='abc' AND colB=1")as an
argument? This way you could first create the query object, and the
the condition object.

> Also is there any simple example for query_condition usage?

You'll find some example usage in Mergeant's sources.

> This part of API is incomplete and reading and analyzing sources is the thing I want to avoid.

Can you tell me what you need there?

Cheers,

Vivien