Add DedupeRule, DedupeRuleGroup and DedupeException API4 entity

CRM/Core/DAO/AllCoreTables.data.php

@@ -207,19 +207,19 @@
     'class' => 'CRM_Event_Cart_DAO_Cart',
     'table' => 'civicrm_event_carts',
   ],
-  'CRM_Dedupe_DAO_RuleGroup' => [
-    'name' => 'RuleGroup',
-    'class' => 'CRM_Dedupe_DAO_RuleGroup',
+  'CRM_Dedupe_DAO_DedupeRuleGroup' => [
+    'name' => 'DedupeRuleGroup',
+    'class' => 'CRM_Dedupe_DAO_DedupeRuleGroup',
     'table' => 'civicrm_dedupe_rule_group',
   ],
-  'CRM_Dedupe_DAO_Rule' => [
-    'name' => 'Rule',
-    'class' => 'CRM_Dedupe_DAO_Rule',
+  'CRM_Dedupe_DAO_DedupeRule' => [
+    'name' => 'DedupeRule',
+    'class' => 'CRM_Dedupe_DAO_DedupeRule',
     'table' => 'civicrm_dedupe_rule',
   ],
-  'CRM_Dedupe_DAO_Exception' => [
-    'name' => 'Exception',
-    'class' => 'CRM_Dedupe_DAO_Exception',
+  'CRM_Dedupe_DAO_DedupeException' => [
+    'name' => 'DedupeException',
+    'class' => 'CRM_Dedupe_DAO_DedupeException',
     'table' => 'civicrm_dedupe_exception',
   ],
   'CRM_Case_DAO_CaseType' => [

CRM/Dedupe/BAO/DedupeException.php

@@ -0,0 +1,56 @@
+<?php
+/*
+ +--------------------------------------------------------------------+
+ | Copyright CiviCRM LLC. All rights reserved.                        |
+ |                                                                    |
+ | This work is published under the GNU AGPLv3 license with some      |
+ | permitted exceptions and without any warranty. For full license    |
+ | and copyright information, see https://civicrm.org/licensing       |
+ +--------------------------------------------------------------------+
+ */
+
+/**
+ *
+ * @package CRM
+ * @copyright CiviCRM LLC https://civicrm.org/licensing
+ */
+
+/**
+ * Manages dedupe exceptions - ie pairs marked as non-duplicates.
+ */
+class CRM_Dedupe_BAO_DedupeException extends CRM_Dedupe_DAO_DedupeException {
+
+  /**
+   * Create a dedupe exception record.
+   *
+   * @param array $params
+   *
+   * @return \CRM_Dedupe_BAO_Exception
+   */
+  public static function create($params) {
+    $hook = empty($params['id']) ? 'create' : 'edit';
+    CRM_Utils_Hook::pre($hook, 'Exception', CRM_Utils_Array::value('id', $params), $params);
+    $contact1 = $params['contact_id1'] ?? NULL;
+    $contact2 = $params['contact_id2'] ?? NULL;
+    $dao = new CRM_Dedupe_BAO_Exception();
+    $dao->copyValues($params);
+    if ($contact1 && $contact2) {
+      CRM_Core_DAO::singleValueQuery("
+        DELETE FROM civicrm_prevnext_cache
+        WHERE (entity_id1 = %1 AND entity_id2 = %2)
+        OR (entity_id1 = %2 AND entity_id2 = %2)",
+        [1 => [$contact1, 'Integer'], 2 => [$contact2, 'Integer']]
+      );
+      if ($contact2 < $contact1) {
+        // These are expected to be saved lowest first.
+        $dao->contact_id1 = $contact2;
+        $dao->contact_id2 = $contact1;
+      }
+    }
+    $dao->save();
+
+    CRM_Utils_Hook::post($hook, 'Exception', $dao->id, $dao);
+    return $dao;
+  }
+
+}

CRM/Dedupe/BAO/DedupeRule.php

@@ -0,0 +1,252 @@
+<?php
+/*
+ +--------------------------------------------------------------------+
+ | Copyright CiviCRM LLC. All rights reserved.                        |
+ |                                                                    |
+ | This work is published under the GNU AGPLv3 license with some      |
+ | permitted exceptions and without any warranty. For full license    |
+ | and copyright information, see https://civicrm.org/licensing       |
+ +--------------------------------------------------------------------+
+ */
+
+/**
+ *
+ * @package CRM
+ * @copyright CiviCRM LLC https://civicrm.org/licensing
+ */
+
+/**
+ * The CiviCRM duplicate discovery engine is based on an
+ * algorithm designed by David Strauss <david@fourkitchens.com>.
+ */
+class CRM_Dedupe_BAO_DedupeRule extends CRM_Dedupe_DAO_DedupeRule {
+
+  /**
+   * Ids of the contacts to limit the SQL queries (whole-database queries otherwise)
+   * @var array
+   */
+  public $contactIds = [];
+
+  /**
+   * Params to dedupe against (queries against the whole contact set otherwise)
+   * @var array
+   */
+  public $params = [];
+
+  /**
+   * Return the SQL query for the given rule - either for finding matching
+   * pairs of contacts, or for matching against the $params variable (if set).
+   *
+   * @return string
+   *   SQL query performing the search
+   *
+   * @throws \CRM_Core_Exception
+   * @throws \CiviCRM_API3_Exception
+   */
+  public function sql() {
+    if ($this->params &&
+      (!array_key_exists($this->rule_table, $this->params) ||
+        !array_key_exists($this->rule_field, $this->params[$this->rule_table])
+      )
+    ) {
+      // if params is present and doesn't have an entry for a field, don't construct the clause.
+      return NULL;
+    }
+
+    // we need to initialise WHERE, ON and USING here, as some table types
+    // extend them; $where is an array of required conditions, $on and
+    // $using are arrays of required field matchings (for substring and
+    // full matches, respectively)
+    $where = [];
+    $on = ["SUBSTR(t1.{$this->rule_field}, 1, {$this->rule_length}) = SUBSTR(t2.{$this->rule_field}, 1, {$this->rule_length})"];
+
+    $innerJoinClauses = [
+      "t1.{$this->rule_field} IS NOT NULL",
+      "t2.{$this->rule_field} IS NOT NULL",
+      "t1.{$this->rule_field} = t2.{$this->rule_field}",
+    ];
+
+    if (in_array($this->getFieldType($this->rule_field), CRM_Utils_Type::getTextTypes(), TRUE)) {
+      $innerJoinClauses[] = "t1.{$this->rule_field} <> ''";
+      $innerJoinClauses[] = "t2.{$this->rule_field} <> ''";
+    }
+
+    switch ($this->rule_table) {
+      case 'civicrm_contact':
+        $id = 'id';
+        //we should restrict by contact type in the first step
+        $sql = "SELECT contact_type FROM civicrm_dedupe_rule_group WHERE id = {$this->dedupe_rule_group_id};";
+        $ct = CRM_Core_DAO::singleValueQuery($sql);
+        if ($this->params) {
+          $where[] = "t1.contact_type = '{$ct}'";
+        }
+        else {
+          $where[] = "t1.contact_type = '{$ct}'";
+          $where[] = "t2.contact_type = '{$ct}'";
+        }
+        break;
+
+      case 'civicrm_address':
+      case 'civicrm_email':
+      case 'civicrm_im':
+      case 'civicrm_openid':
+      case 'civicrm_phone':
+        $id = 'contact_id';
+        break;
+
+      case 'civicrm_note':
+        $id = 'entity_id';
+        if ($this->params) {
+          $where[] = "t1.entity_table = 'civicrm_contact'";
+        }
+        else {
+          $where[] = "t1.entity_table = 'civicrm_contact'";
+          $where[] = "t2.entity_table = 'civicrm_contact'";
+        }
+        break;
+
+      default:
+        // custom data tables
+        if (preg_match('/^civicrm_value_/', $this->rule_table) || preg_match('/^custom_value_/', $this->rule_table)) {
+          $id = 'entity_id';
+        }
+        else {
+          throw new CRM_Core_Exception("Unsupported rule_table for civicrm_dedupe_rule.id of {$this->id}");
+        }
+        break;
+    }
+
+    // build SELECT based on the field names containing contact ids
+    // if there are params provided, id1 should be 0
+    if ($this->params) {
+      $select = "t1.$id id1, {$this->rule_weight} weight";
+      $subSelect = 'id1, weight';
+    }
+    else {
+      $select = "t1.$id id1, t2.$id id2, {$this->rule_weight} weight";
+      $subSelect = 'id1, id2, weight';
+    }
+
+    // build FROM (and WHERE, if it's a parametrised search)
+    // based on whether the rule is about substrings or not
+    if ($this->params) {
+      $from = "{$this->rule_table} t1";
+      $str = 'NULL';
+      if (isset($this->params[$this->rule_table][$this->rule_field])) {
+        $str = trim(CRM_Utils_Type::escape($this->params[$this->rule_table][$this->rule_field], 'String'));
+      }
+      if ($this->rule_length) {
+        $where[] = "SUBSTR(t1.{$this->rule_field}, 1, {$this->rule_length}) = SUBSTR('$str', 1, {$this->rule_length})";
+        $where[] = "t1.{$this->rule_field} IS NOT NULL";
+      }
+      else {
+        $where[] = "t1.{$this->rule_field} = '$str'";
+      }
+    }
+    else {
+      if ($this->rule_length) {
+        $from = "{$this->rule_table} t1 JOIN {$this->rule_table} t2 ON (" . implode(' AND ', $on) . ")";
+      }
+      else {
+        $from = "{$this->rule_table} t1 INNER JOIN {$this->rule_table} t2 ON (" . implode(' AND ', $innerJoinClauses) . ")";
+      }
+    }
+
+    // finish building WHERE, also limit the results if requested
+    if (!$this->params) {
+      $where[] = "t1.$id < t2.$id";
+    }
+    $query = "SELECT $select FROM $from WHERE " . implode(' AND ', $where);
+    if ($this->contactIds) {
+      $cids = [];
+      foreach ($this->contactIds as $cid) {
+        $cids[] = CRM_Utils_Type::escape($cid, 'Integer');
+      }
+      if (count($cids) == 1) {
+        $query .= " AND (t1.$id = {$cids[0]}) UNION $query AND t2.$id = {$cids[0]}";
+      }
+      else {
+        $query .= " AND t1.$id IN (" . implode(',', $cids) . ")
+        UNION $query AND  t2.$id IN (" . implode(',', $cids) . ")";
+      }
+      // The `weight` is ambiguous in the context of the union; put the whole
+      // thing in a subquery.
+      $query = "SELECT $subSelect FROM ($query) subunion";
+    }
+
+    return $query;
+  }
+
+  /**
+   * find fields related to a rule group.
+   *
+   * @param array $params contains the rule group property to identify rule group
+   *
+   * @return array
+   *   rule fields array associated to rule group
+   */
+  public static function dedupeRuleFields($params) {
+    $rgBao = new CRM_Dedupe_BAO_RuleGroup();
+    $rgBao->used = $params['used'];
+    $rgBao->contact_type = $params['contact_type'];
+    $rgBao->find(TRUE);
+
+    $ruleBao = new CRM_Dedupe_BAO_Rule();
+    $ruleBao->dedupe_rule_group_id = $rgBao->id;
+    $ruleBao->find();
+    $ruleFields = [];
+    while ($ruleBao->fetch()) {
+      $field_name = $ruleBao->rule_field;
+      if ($field_name == 'phone_numeric') {
+        $field_name = 'phone';
+      }
+      $ruleFields[] = $field_name;
+    }
+    return $ruleFields;
+  }
+
+  /**
+   * @param int $cid
+   * @param int $oid
+   *
+   * @return bool
+   */
+  public static function validateContacts($cid, $oid) {
+    if (!$cid || !$oid) {
+      return NULL;
+    }
+    $exception = new CRM_Dedupe_DAO_Exception();
+    $exception->contact_id1 = $cid;
+    $exception->contact_id2 = $oid;
+    //make sure contact2 > contact1.
+    if ($cid > $oid) {
+      $exception->contact_id1 = $oid;
+      $exception->contact_id2 = $cid;
+    }
+
+    return !$exception->find(TRUE);
+  }
+
+  /**
+   * Get the specification for the given field.
+   *
+   * @param string $fieldName
+   *
+   * @return array
+   * @throws \CiviCRM_API3_Exception
+   */
+  public function getFieldType($fieldName) {
+    $entity = CRM_Core_DAO_AllCoreTables::getBriefName(CRM_Core_DAO_AllCoreTables::getClassForTable($this->rule_table));
+    if (!$entity) {
+      // This means we have stored a custom field rather than an entity name in rule_table, figure out the entity.
+      $entity = civicrm_api3('CustomGroup', 'getvalue', ['table_name' => $this->rule_table, 'return' => 'extends']);
+      if (in_array($entity, ['Individual', 'Household', 'Organization'])) {
+        $entity = 'Contact';
+      }
+      $fieldName = 'custom_' . civicrm_api3('CustomField', 'getvalue', ['column_name' => $fieldName, 'return' => 'id']);
+    }
+    $fields = civicrm_api3($entity, 'getfields', ['action' => 'create'])['values'];
+    return $fields[$fieldName]['type'];
+  }
+
+}