[support] views and calculated fields

[Lluís]

Ok, I have developed a module to allow add fields. I started my code
using views_groupby and views_calc and the module can be extended to
allow other SQL operations using handlers.

My problem right now is that despite generating a correct SQL, my
field don't appear on view. In my handler I have:

function query() {
      .............
      $this->view->query->add_field(NULL, $string,'sum');
      .............
}

function render($values) {
    return $values->sum;
}


And my field is defined as:

  $data['views_operations']['views_sql_operatedfields'] = array(
    'title' => t('Sum fields'),
    'help' => t('Sum all the selected fields; you first have to add
them to the view.'),
    'field' => array(
      'handler' => 'views_operations_handler_field_sum',
    )
  );


Any hint of why my field don't appear in the view?

Thanks

On Wed, Aug 26, 2009 at 11:30 AM, Lluís<enboig at gmail.com> wrote:
> I use Drupal6 and Views2.
>
> My problem is that I want to operate with fields from diferent tables
> (and modules). Can this be achieved just with hook_views_data()?
>
>
> On Tue, Aug 25, 2009 at 3:44 PM, Seth Freach<sfreach at gmail.com> wrote:
>> Lluís,
>>
>> First, what version of Views are you using?
>>
>> If Views 1 (Drupal 5): what you need then is for your custom module to
>> implement hook_views_tables().  That is how you tell the views module about
>> your data and define fields and filters that are available to it.  start
>> here: http://drupal.org/node/99564 and read through to part 5: Filters.
>>
>> If Views 2 (Drupal 6): you need to use hook_views_data() which you can read
>> more about here: http://views-help.doc.logrus.com/help/views/api-tables.
>> from that documentation page, in the Describing Fields On Tables section:
>> "... each table can also have an unlimited number of field designations;
>> these correspond roughly to fields on the table, though it is very common to
>> use non-fields to display data that isn't directly in a field, such as data
>> arrived from formulae..."
>> be sure to have a look at http://views-help.doc.logrus.com/help/views/api as
>> well for info on using hook_views_api() and where the other views hooks
>> should be placed.
>>
>> Seth
>>
>>
>
> --
> *La vida és com una taronja, què esperes a exprimir-la?
> *Si creus que l'educació és cara, prova la ignorància.
> *La vida és com una moneda, la pots gastar en el que vulguis però
> només una vegada.
> *Abans d'imprimir aquest missatge, pensa en el medi ambient.
>



-- 
*La vida és com una taronja, què esperes a exprimir-la?
*Si creus que l'educació és cara, prova la ignorància.
*La vida és com una moneda, la pots gastar en el que vulguis però
només una vegada.
*Abans d'imprimir aquest missatge, pensa en el medi ambient.