From 49d2e8eeda6525097d2f9d8e5d5851d30242ffb8 Mon Sep 17 00:00:00 2001
From: demeritcowboy <demeritcowboy@hotmail.com>
Date: Tue, 23 Feb 2021 07:11:59 -0500
Subject: [PATCH] revert 18782

---
 CRM/Logging/Schema.php                   | 13 +------
 tests/phpunit/CRM/Logging/SchemaTest.php | 45 ------------------------
 2 files changed, 1 insertion(+), 57 deletions(-)

diff --git a/CRM/Logging/Schema.php b/CRM/Logging/Schema.php
index 8c1382be53..6fc36509a4 100644
--- a/CRM/Logging/Schema.php
+++ b/CRM/Logging/Schema.php
@@ -952,12 +952,6 @@ COLS;
       }
       $columns = $this->columnsOf($table, $force);
 
-      // Use utf8mb4_bin or utf8_bin, depending on what's in use.
-      $charset = 'utf8';
-      if (stripos(CRM_Core_BAO_SchemaHandler::getInUseCollation(), 'utf8mb4') !== FALSE) {
-        $charset = 'utf8mb4';
-      }
-
       // only do the change if any data has changed
       $cond = [];
       foreach ($columns as $column) {
@@ -968,12 +962,7 @@ COLS;
         $excludeColumn = in_array($column, $tableExceptions) ||
           in_array(str_replace('`', '', $column), $tableExceptions);
         if (!$excludeColumn) {
-          // The empty string needs charset signalling to avoid errors.
-          // Note that it is not a cast/convert. It just tells mysql
-          // that there isn't a conflict when your system/connection defaults
-          // happen to be different from $charset.
-          // See https://dev.mysql.com/doc/refman/5.7/en/charset-literal.html
-          $cond[] = "IFNULL(OLD.$column,_{$charset}'') <> IFNULL(NEW.$column,_{$charset}'') COLLATE {$charset}_bin";
+          $cond[] = "IFNULL(OLD.$column,'') <> IFNULL(NEW.$column,'')";
         }
       }
       $suppressLoggingCond = "@civicrm_disable_logging IS NULL OR @civicrm_disable_logging = 0";
diff --git a/tests/phpunit/CRM/Logging/SchemaTest.php b/tests/phpunit/CRM/Logging/SchemaTest.php
index b2f0bea21d..5356c14e6d 100644
--- a/tests/phpunit/CRM/Logging/SchemaTest.php
+++ b/tests/phpunit/CRM/Logging/SchemaTest.php
@@ -375,51 +375,6 @@ class CRM_Logging_SchemaTest extends CiviUnitTestCase {
     $this->assertStringContainsString("`{$custom_field['column_name']}` varchar(768)", $dao->Create_Table);
   }
 
-  /**
-   * Test that logging records changes in upper/lower-case and accents.
-   * e.g. changing e to E or e to é
-   * @dataProvider loggingSensitivityProvider
-   *
-   * @param array $input
-   */
-  public function testLoggingSensitivity(array $input) {
-    $schema = new CRM_Logging_Schema();
-    $schema->enableLogging();
-
-    // create a contact with all lower case/no accents
-    $contact_id = $this->individualCreate(['first_name' => 'pierre']);
-
-    $query_params = [
-      1 => [$contact_id, 'Integer'],
-      2 => [$input['first_name'], 'String'],
-    ];
-
-    // Clear out anything that api did twice during initial creation so that
-    // spurious update records don't give false results.
-    CRM_Core_DAO::executeQuery("DELETE FROM log_civicrm_contact WHERE id = %1 AND log_action = 'update'", $query_params);
-
-    // Change the first name
-    CRM_Core_DAO::executeQuery("UPDATE civicrm_contact SET first_name = %2 WHERE id = %1", $query_params);
-    // check the log
-    $dao = CRM_Core_DAO::executeQuery("SELECT first_name FROM log_civicrm_contact WHERE id = %1 AND log_action = 'update'", $query_params);
-    $first_name = NULL;
-    if ($dao->fetch()) {
-      $first_name = $dao->first_name;
-    }
-    $this->assertSame($input['first_name'], $first_name);
-  }
-
-  /**
-   * Dataprovider for testLoggingSensitivity
-   * @return array
-   */
-  public function loggingSensitivityProvider():array {
-    return [
-      'upper' => [['first_name' => 'Pierre']],
-      'accent' => [['first_name' => 'pièrre']],
-    ];
-  }
-
   /**
    * Test creating a table with SchemaHandler::createTable when logging
    * is enabled.
-- 
2.25.1