Issue #2003582 by malcomio, zschmid: Rename Views method op_equal() to opEqual().

core/modules/views/lib/Drupal/views/Plugin/views/filter/Combine.php

@@ -87,10 +87,10 @@ public function query() {
     }
   }
 
-  // By default things like op_equal uses add_where, that doesn't support
+  // By default things like opEqual uses add_where, that doesn't support
   // complex expressions, so override all operators.
 
-  function op_equal($expression) {
+  function opEqual($expression) {
     $placeholder = $this->placeholder();
     $operator = $this->operator();
     $this->query->add_where_expression($this->options['group'], "$expression $operator $placeholder", array($placeholder => $this->value));

core/modules/views/lib/Drupal/views/Plugin/views/filter/String.php

@@ -41,13 +41,13 @@ function operators() {
       '=' => array(
         'title' => t('Is equal to'),
         'short' => t('='),
-        'method' => 'op_equal',
+        'method' => 'opEqual',
         'values' => 1,
       ),
       '!=' => array(
         'title' => t('Is not equal to'),
         'short' => t('!='),
-        'method' => 'op_equal',
+        'method' => 'opEqual',
         'values' => 1,
       ),
       'contains' => array(
@@ -260,7 +260,7 @@ public function query() {
     }
   }
 
-  function op_equal($field) {
+  public function opEqual($field) {
     $this->query->add_where($this->options['group'], $field, $this->value, $this->operator());
   }