views_handler_argument_formula.inc in Views (for Drupal 7) 6.3

File

handlers/views_handler_argument_formula.inc

<?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);
  }

}

Classes

Name	Description
views_handler_argument_formula	Abstract argument handler for simple formulae.