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Earl Miles
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<?php
/**
* Abstract argument handler for simple formulae.
*
* Child classes of this object should implement summary_argument, at least.
*
* Definition terms:
* - formula: The formula to use for this handler.
*
* @ingroup views_argument_handlers
*/
class views_handler_argument_formula extends views_handler_argument {
var $formula = NULL;
/**
* Constructor
*/
function construct() {
parent::construct();
if (!empty($this->definition['formula'])) {
$this->formula = $this->definition['formula'];
}
}
function get_formula() {
return str_replace('***table***', $this->table_alias, $this->formula);
}
/**
* Build the summary query based on a formula
*/
function summary_query() {
$this->ensure_my_table();
// Now that our table is secure, get our formula.
$formula = $this->get_formula();
// Add the field.
$this->base_alias = $this->name_alias = $this->query->add_field(NULL, $formula, $this->field);
$this->query->set_count_field(NULL, $formula, $this->field);
return $this->summary_basics(FALSE);
}
/**
* Build the query based upon the formula
*/
function query() {
$this->ensure_my_table();
// Now that our table is secure, get our formula.
$formula = $this->get_formula();
$this->query->add_where(0, "$formula = '%s'", $this->argument);
}
}