CRM/Dedupe/BAO/QueryBuilder.php

   1 <?php
   2 /**
   3  * Class CRM_Dedupe_BAO_QueryBuilder
   4  */
   5 class CRM_Dedupe_BAO_QueryBuilder {
   6   /**
   7    * @param $rg
   8    * @param string $strID1
   9    * @param string $strID2
  10    *
  11    * @return string
  12    */
  13   public static function internalFilters($rg, $strID1 = 'contact1.id', $strID2 = 'contact2.id') {
  14     // Add a contact id filter for dedupe by group requests and add logic
  15     // to remove duplicate results with opposing orders, i.e. 1,2 and 2,1
  16     if (!empty($rg->contactIds)) {
  17       $cids = implode(',', $rg->contactIds);
  18       return "($strID1 IN ($cids) AND ( $strID2 NOT IN ($cids) OR ($strID2 IN ($cids) AND $strID1 < $strID2) ))";
  19     }
  20     else {
  21       return "($strID1 < $strID2)";
  22     }
  23   }
  24
  25   /**
  26    * If a contact list is specified then adjust the query to ensure one contact is in that list.
  27    *
  28    * Doing an OR join here will lead to a server-killing unindexed query. However, a union will
  29    * perform better.
  30    *
  31    * @param array $contactList
  32    * @param string $query
  33    * @param string $strID1
  34    * @param string $strID2
  35    *
  36    * @return string
  37    */
  38   protected static function filterQueryByContactList(array $contactList, $query, $strID1 = 'contact1.id', $strID2 = 'contact2.id') {
  39     if (empty($contactList)) {
  40       return $query . " AND ($strID1 < $strID2)";
  41     }
  42     $contactIDs = implode(',', $contactList);
  43     return "$query AND $strID1 IN ($contactIDs) AND $strID1 > $strID2
  44       UNION $query AND $strID1 > $strID2 AND $strID2 IN ($contactIDs) AND $strID1 NOT IN ($contactIDs)
  45     ";
  46
  47   }
  48
  49 }