crm.fsf.org/20131203/files/sites/all/modules-new/views/handlers/views_handler_argument_formula.inc

   1 <?php
   2
   3 /**
   4  * @file
   5  * Definition of views_handler_argument_formula.
   6  */
   7
   8 /**
   9  * Abstract argument handler for simple formulae.
  10  *
  11  * Child classes of this object should implement summary_argument, at least.
  12  *
  13  * Definition terms:
  14  * - formula: The formula to use for this handler.
  15  *
  16  * @ingroup views_argument_handlers
  17  */
  18 class views_handler_argument_formula extends views_handler_argument {
  19   var $formula = NULL;
  20   /**
  21    * Constructor
  22    */
  23   function construct() {
  24     parent::construct();
  25
  26     if (!empty($this->definition['formula'])) {
  27       $this->formula = $this->definition['formula'];
  28     }
  29   }
  30
  31   function get_formula() {
  32     return str_replace('***table***', $this->table_alias, $this->formula);
  33   }
  34
  35   /**
  36    * Build the summary query based on a formula
  37    */
  38   function summary_query() {
  39     $this->ensure_my_table();
  40     // Now that our table is secure, get our formula.
  41     $formula = $this->get_formula();
  42
  43     // Add the field.
  44     $this->base_alias = $this->name_alias = $this->query->add_field(NULL, $formula, $this->field);
  45     $this->query->set_count_field(NULL, $formula, $this->field);
  46
  47     return $this->summary_basics(FALSE);
  48   }
  49
  50   /**
  51    * Build the query based upon the formula
  52    */
  53   function query($group_by = FALSE) {
  54     $this->ensure_my_table();
  55     // Now that our table is secure, get our formula.
  56     $placeholder = $this->placeholder();
  57     $formula = $this->get_formula() .' = ' . $placeholder;
  58     $placeholders = array(
  59       $placeholder => $this->argument,
  60     );
  61     $this->query->add_where(0, $formula, $placeholders, 'formula');
  62   }
  63 }