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- <?php
- /**
- * @file
- * Definition of views_handler_argument_formula.
- */
- /**
- * 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 $this->summary_basics(FALSE);
- }
- /**
- * Build the query based upon the formula
- */
- function query($group_by = FALSE) {
- $this->ensure_my_table();
- // Now that our table is secure, get our formula.
- $placeholder = $this->placeholder();
- $formula = $this->get_formula() .' = ' . $placeholder;
- $placeholders = array(
- $placeholder => $this->argument,
- );
- $this->query->add_where(0, $formula, $placeholders, 'formula');
- }
- }
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