CRM/Dedupe/Finder.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | Copyright CiviCRM LLC. All rights reserved.                        |
   5  |                                                                    |
   6  | This work is published under the GNU AGPLv3 license with some      |
   7  | permitted exceptions and without any warranty. For full license    |
   8  | and copyright information, see https://civicrm.org/licensing       |
   9  +--------------------------------------------------------------------+
  10  */
  11
  12 /**
  13  *
  14  * @package CRM
  15  * @copyright CiviCRM LLC https://civicrm.org/licensing
  16  */
  17
  18 /**
  19  * The CiviCRM duplicate discovery engine is based on an
  20  * algorithm designed by David Strauss <david@fourkitchens.com>.
  21  */
  22 class CRM_Dedupe_Finder {
  23
  24   /**
  25    * Return a contact_id-keyed array of arrays of possible dupes
  26    * (of the key contact_id) - limited to dupes of $cids if provided.
  27    *
  28    * @param int $rgid
  29    *   Rule group id.
  30    * @param array $cids
  31    *   Contact ids to limit the search to.
  32    *
  33    * @param bool $checkPermissions
  34    *   Respect logged in user permissions.
  35    *
  36    * @return array
  37    *   Array of (cid1, cid2, weight) dupe triples
  38    *
  39    * @throws \CRM_Core_Exception
  40    */
  41   public static function dupes($rgid, $cids = [], $checkPermissions = TRUE) {
  42     $rgBao = new CRM_Dedupe_BAO_DedupeRuleGroup();
  43     $rgBao->id = $rgid;
  44     $rgBao->contactIds = $cids;
  45     if (!$rgBao->find(TRUE)) {
  46       throw new CRM_Core_Exception('Dedupe rule not found for selected contacts');
  47     }
  48
  49     $rgBao->fillTable();
  50     $dao = CRM_Core_DAO::executeQuery($rgBao->thresholdQuery($checkPermissions));
  51     $dupes = [];
  52     while ($dao->fetch()) {
  53       $dupes[] = [$dao->id1, $dao->id2, $dao->weight];
  54     }
  55     CRM_Core_DAO::executeQuery(($rgBao->tableDropQuery()));
  56
  57     return $dupes;
  58   }
  59
  60   /**
  61    * Return an array of possible dupes, based on the provided array of
  62    * params, using the default rule group for the given contact type and
  63    * usage.
  64    *
  65    * check_permission is a boolean flag to indicate if permission should be considered.
  66    * default is to always check permissioning but public pages for example might not want
  67    * permission to be checked for anonymous users. Refer CRM-6211. We might be breaking
  68    * Multi-Site dedupe for public pages.
  69    *
  70    * @param array $params
  71    *   Array of params of the form $params[$table][$field] == $value.
  72    * @param string $ctype
  73    *   Contact type to match against.
  74    * @param string $used
  75    *   Dedupe rule group usage ('Unsupervised' or 'Supervised' or 'General').
  76    * @param array $except
  77    *   Array of contacts that shouldn't be considered dupes.
  78    * @param int $ruleGroupID
  79    *   The id of the dedupe rule we should be using.
  80    *
  81    * @return array
  82    *   matching contact ids
  83    * @throws \CRM_Core_Exception
  84    */
  85   public static function dupesByParams(
  86     $params,
  87     $ctype,
  88     $used = 'Unsupervised',
  89     $except = [],
  90     $ruleGroupID = NULL
  91   ) {
  92     // If $params is empty there is zero reason to proceed.
  93     if (!$params) {
  94       return [];
  95     }
  96     $checkPermission = CRM_Utils_Array::value('check_permission', $params, TRUE);
  97     // This may no longer be required - see https://github.com/civicrm/civicrm-core/pull/13176
  98     $params = array_filter($params);
  99
 100     $foundByID = FALSE;
 101     if ($ruleGroupID) {
 102       $rgBao = new CRM_Dedupe_BAO_DedupeRuleGroup();
 103       $rgBao->id = $ruleGroupID;
 104       $rgBao->contact_type = $ctype;
 105       if ($rgBao->find(TRUE)) {
 106         $foundByID = TRUE;
 107       }
 108     }
 109
 110     if (!$foundByID) {
 111       $rgBao = new CRM_Dedupe_BAO_DedupeRuleGroup();
 112       $rgBao->contact_type = $ctype;
 113       $rgBao->used = $used;
 114       if (!$rgBao->find(TRUE)) {
 115         throw new CRM_Core_Exception("$used rule for $ctype does not exist");
 116       }
 117     }
 118
 119     if (isset($params['civicrm_phone']['phone_numeric'])) {
 120       $orig = $params['civicrm_phone']['phone_numeric'];
 121       $params['civicrm_phone']['phone_numeric'] = preg_replace('/[^\d]/', '', $orig);
 122     }
 123     $rgBao->params = $params;
 124     $rgBao->fillTable();
 125     $dao = new CRM_Core_DAO();
 126     $dao->query($rgBao->thresholdQuery($checkPermission));
 127     $dupes = [];
 128     while ($dao->fetch()) {
 129       if (isset($dao->id) && $dao->id) {
 130         $dupes[] = $dao->id;
 131       }
 132     }
 133     $dao->query($rgBao->tableDropQuery());
 134     return array_diff($dupes, $except);
 135   }
 136
 137   /**
 138    * Return a contact_id-keyed array of arrays of possible dupes in the given group.
 139    *
 140    * @param int $rgid
 141    *   Rule group id.
 142    * @param int $gid
 143    *   Contact group id.
 144    *
 145    * @param int $searchLimit
 146    *  Limit for the number of contacts to be used for comparison.
 147    *  The search methodology finds all matches for the searchedContacts so this limits
 148    *  the number of searched contacts, not the matches found.
 149    *
 150    * @return array
 151    *   array of (cid1, cid2, weight) dupe triples
 152    *
 153    * @throws \CRM_Core_Exception
 154    */
 155   public static function dupesInGroup($rgid, $gid, $searchLimit = 0) {
 156     $cids = array_keys(CRM_Contact_BAO_Group::getMember($gid, TRUE, $searchLimit));
 157     if (!empty($cids)) {
 158       return self::dupes($rgid, $cids);
 159     }
 160     return [];
 161   }
 162
 163   /**
 164    * A hackish function needed to massage CRM_Contact_Form_$ctype::formRule()
 165    * object into a valid $params array for dedupe
 166    *
 167    * @param array $fields
 168    *   Contact structure from formRule().
 169    * @param string $ctype
 170    *   Contact type of the given contact.
 171    *
 172    * @return array
 173    *   valid $params array for dedupe
 174    * @throws \CRM_Core_Exception
 175    */
 176   public static function formatParams($fields, $ctype) {
 177     $flat = [];
 178     CRM_Utils_Array::flatten($fields, $flat);
 179
 180     // FIXME: This may no longer be necessary - check inputs
 181     $replace_these = [
 182       'individual_prefix' => 'prefix_id',
 183       'individual_suffix' => 'suffix_id',
 184       'gender' => 'gender_id',
 185     ];
 186     foreach (['individual_suffix', 'individual_prefix', 'gender'] as $name) {
 187       if (!empty($fields[$name])) {
 188         $flat[$replace_these[$name]] = $flat[$name];
 189         unset($flat[$name]);
 190       }
 191     }
 192
 193     // handle {birth,deceased}_date
 194     foreach ([
 195       'birth_date',
 196       'deceased_date',
 197     ] as $date) {
 198       if (!empty($fields[$date])) {
 199         $flat[$date] = $fields[$date];
 200         if (is_array($flat[$date])) {
 201           $flat[$date] = CRM_Utils_Date::format($flat[$date]);
 202         }
 203         $flat[$date] = CRM_Utils_Date::processDate($flat[$date]);
 204       }
 205     }
 206
 207     if (!empty($flat['contact_source'])) {
 208       $flat['source'] = $flat['contact_source'];
 209       unset($flat['contact_source']);
 210     }
 211
 212     // handle preferred_communication_method
 213     if (!empty($fields['preferred_communication_method'])) {
 214       $methods = array_intersect($fields['preferred_communication_method'], ['1']);
 215       $methods = array_keys($methods);
 216       sort($methods);
 217       if ($methods) {
 218         $flat['preferred_communication_method'] = CRM_Core_DAO::VALUE_SEPARATOR . implode(CRM_Core_DAO::VALUE_SEPARATOR, $methods) . CRM_Core_DAO::VALUE_SEPARATOR;
 219       }
 220     }
 221
 222     // handle custom data
 223     $tree = CRM_Core_BAO_CustomGroup::getTree($ctype, NULL, NULL, -1);
 224     CRM_Core_BAO_CustomGroup::postProcess($tree, $fields, TRUE);
 225     foreach ($tree as $key => $cg) {
 226       if (!is_int($key)) {
 227         continue;
 228       }
 229       foreach ($cg['fields'] as $cf) {
 230         $flat[$cf['column_name']] = $cf['customValue']['data'] ?? NULL;
 231       }
 232     }
 233
 234     // if the key is dotted, keep just the last part of it
 235     foreach ($flat as $key => $value) {
 236       if (substr_count($key, '.')) {
 237         $last = explode('.', $key);
 238         $last = array_pop($last);
 239         // make sure the first occurrence is kept, not the last
 240         if (!isset($flat[$last])) {
 241           $flat[$last] = $value;
 242         }
 243         unset($flat[$key]);
 244       }
 245     }
 246
 247     // drop the -digit (and -Primary, for CRM-3902) postfixes (so event registration's $flat['email-5'] becomes $flat['email'])
 248     // FIXME: CRM-5026 should be fixed here; the below clobbers all address info; we should split off address fields and match
 249     // the -digit to civicrm_address.location_type_id and -Primary to civicrm_address.is_primary
 250     foreach ($flat as $key => $value) {
 251       $matches = [];
 252       if (preg_match('/(.*)-(Primary-[\d+])$|(.*)-(\d+-\d+)$|(.*)-(\d+|Primary)$/', $key, $matches)) {
 253         $return = array_values(array_filter($matches));
 254         // make sure the first occurrence is kept, not the last
 255         $flat[$return[1]] = empty($flat[$return[1]]) ? $value : $flat[$return[1]];
 256         unset($flat[$key]);
 257       }
 258     }
 259
 260     $params = [];
 261     $supportedFields = CRM_Dedupe_BAO_DedupeRuleGroup::supportedFields($ctype);
 262     if (is_array($supportedFields)) {
 263       foreach ($supportedFields as $table => $fields) {
 264         if ($table === 'civicrm_address') {
 265           // for matching on civicrm_address fields, we also need the location_type_id
 266           $fields['location_type_id'] = '';
 267           // FIXME: we also need to do some hacking for id and name fields, see CRM-3902’s comments
 268           $fixes = [
 269             'address_name' => 'name',
 270             'country' => 'country_id',
 271             'state_province' => 'state_province_id',
 272             'county' => 'county_id',
 273           ];
 274           foreach ($fixes as $orig => $target) {
 275             if (!empty($flat[$orig])) {
 276               $params[$table][$target] = $flat[$orig];
 277             }
 278           }
 279         }
 280         if ($table === 'civicrm_phone') {
 281           $fixes = [
 282             'phone' => 'phone_numeric',
 283           ];
 284           foreach ($fixes as $orig => $target) {
 285             if (!empty($flat[$orig])) {
 286               $params[$table][$target] = $flat[$orig];
 287             }
 288           }
 289         }
 290         foreach ($fields as $field => $title) {
 291           if (!empty($flat[$field])) {
 292             $params[$table][$field] = $flat[$field];
 293           }
 294         }
 295       }
 296     }
 297     return $params;
 298   }
 299
 300   /**
 301    * Parse duplicate pairs into a standardised array and store in the prev_next_cache.
 302    *
 303    * @param array $foundDupes
 304    * @param string $cacheKeyString
 305    *
 306    * @return array
 307    *   Dupe pairs with the keys
 308    *   -srcID
 309    *   -srcName
 310    *   -dstID
 311    *   -dstName
 312    *   -weight
 313    *   -canMerge
 314    */
 315   public static function parseAndStoreDupePairs($foundDupes, $cacheKeyString) {
 316     $cids = [];
 317     foreach ($foundDupes as $dupe) {
 318       $cids[$dupe[0]] = 1;
 319       $cids[$dupe[1]] = 1;
 320     }
 321     $cidString = implode(', ', array_keys($cids));
 322
 323     $dao = CRM_Core_DAO::executeQuery("SELECT id, display_name FROM civicrm_contact WHERE id IN ($cidString) ORDER BY sort_name");
 324     $displayNames = [];
 325     while ($dao->fetch()) {
 326       $displayNames[$dao->id] = $dao->display_name;
 327     }
 328
 329     $userId = CRM_Core_Session::getLoggedInContactID();
 330     foreach ($foundDupes as $dupes) {
 331       $srcID = $dupes[1];
 332       $dstID = $dupes[0];
 333       // The logged in user should never be the src (ie. the contact to be removed).
 334       if ($srcID == $userId) {
 335         $srcID = $dstID;
 336         $dstID = $userId;
 337       }
 338
 339       $mainContacts[] = $row = [
 340         'dstID' => (int) $dstID,
 341         'dstName' => $displayNames[$dstID],
 342         'srcID' => (int) $srcID,
 343         'srcName' => $displayNames[$srcID],
 344         'weight' => $dupes[2],
 345         'canMerge' => TRUE,
 346       ];
 347
 348       CRM_Core_DAO::executeQuery("INSERT INTO civicrm_prevnext_cache (entity_table, entity_id1, entity_id2, cacheKey, data) VALUES
 349         ('civicrm_contact', %1, %2, %3, %4)", [
 350           1 => [$dstID, 'Integer'],
 351           2 => [$srcID, 'Integer'],
 352           3 => [$cacheKeyString, 'String'],
 353           4 => [serialize($row), 'String'],
 354         ]
 355       );
 356     }
 357     return $mainContacts;
 358   }
 359
 360 }