50 lines
1.5 KiB
PHP
50 lines
1.5 KiB
PHP
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<?php
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/**
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* Class CRM_Dedupe_BAO_QueryBuilder
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*/
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class CRM_Dedupe_BAO_QueryBuilder {
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/**
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* @param $rg
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* @param string $strID1
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* @param string $strID2
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*
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* @return string
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*/
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public static function internalFilters($rg, $strID1 = 'contact1.id', $strID2 = 'contact2.id') {
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// Add a contact id filter for dedupe by group requests and add logic
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// to remove duplicate results with opposing orders, i.e. 1,2 and 2,1
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if (!empty($rg->contactIds)) {
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$cids = implode(',', $rg->contactIds);
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return "($strID1 IN ($cids) AND ( $strID2 NOT IN ($cids) OR ($strID2 IN ($cids) AND $strID1 < $strID2) ))";
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}
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else {
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return "($strID1 < $strID2)";
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}
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}
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/**
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* If a contact list is specified then adjust the query to ensure one contact is in that list.
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*
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* Doing an OR join here will lead to a server-killing unindexed query. However, a union will
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* perform better.
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*
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* @param array $contactList
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* @param string $query
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* @param string $strID1
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* @param string $strID2
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*
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* @return string
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*/
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protected static function filterQueryByContactList(array $contactList, $query, $strID1 = 'contact1.id', $strID2 = 'contact2.id') {
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if (empty($contactList)) {
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return $query . " AND ($strID1 < $strID2)";
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}
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$contactIDs = implode(',', $contactList);
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return "$query AND $strID1 IN ($contactIDs) AND $strID1 > $strID2
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UNION $query AND $strID1 > $strID2 AND $strID2 IN ($contactIDs) AND $strID1 NOT IN ($contactIDs)
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";
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}
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}
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