获取视图执行的实际查询

我需要找出由某个查询执行的SQL查询。在配置视图时，“视图”模块可以显示SQL，但显然查询不是在所有情况下都可以运行的实际查询。
我知道Devel模块可以显示数据库查询，但是devel无法显示实际查询，除非在每个查询中单击关联的“ A”链接，并且有数百个查询。

我如何找出视图执行的实际查询？该视图显示为块。

您必须使用hook_views_pre_execute，并已安装Devel dpq来查看SQL字符串：

function hook_views_pre_execute(&$view) {
  dpq($view->build_info['query']);
}

function hook_views_pre_execute(&$view) {
  if ($view->name == 'XYZ') {
    $query = (string)$view->build_info['query'];
    echo $query;
  }
}

无需补丁或挂钩。

// Run the view.
$view = views_get_view('frontpage');
$view->set_display('page');
$view->pre_execute();
$view->execute();

/* Magic Below Here */
// Get query from the view.
$query = $view->query->query();

// Format SelectQueryInterface into a string.
$string = (string) $query;

// Replace arguments.
$arguments = $query->arguments();
if (!empty($arguments) && is_array($arguments)) {
  foreach ($arguments as $placeholder => &$value) {
    if (is_string($value)) {
      $value = "'$value'";
    }
  }
  $string = strtr($string, $arguments);
}

// Format the query string for more readable output.
$string = str_replace(array(' {', "\n{"), ' ', $string);
$string = str_replace(array('} ', "}\n"), ' AS ', $string);
$string = str_replace(', ', ",\n  ", $string);
$string = str_replace(' AND ', "\n  AND ", $string);
$string = str_replace(' ON ', "\n  ON ", $string);
$string = str_replace('SELECT ', "SELECT\n  ", $string);
$string = str_replace('ORDER BY ', "ORDER BY\n  ", $string);

// echo $string;
echo str_replace('  ', '  ', nl2br($string));

将此作为输出

SELECT
  node.sticky AS node_sticky,
  node.created AS node_created,
  node.nid AS nid,
  'frontpage:page' AS view_name
FROM  node AS node
WHERE (( (node.promote <> 0)
  AND (node.status = 1) ))
ORDER BY
  node_sticky DESC,
  node_created DESC
LIMIT 10 OFFSET 0

请尝试以下补丁：

--- a/sites/all/modules/views/plugins/views_plugin_query_default.inc
+++ b/sites/all/modules/views/plugins/views_plugin_query_default.inc
@@ -1393,6 +1393,19 @@ class views_plugin_query_default extends     views_plugin_query {
           $query->range($offset, $limit);
         }

+        $query_string = (string)$query;
+        $query_string = str_replace('{', '', $query_string);
+        $query_string = str_replace('}', '', $query_string);
+        $query_params = $query->getArguments();
+        foreach($query_params as $placeholder => $value) {
+          if(!is_numeric($value)) {
+            $query_string = str_replace($placeholder, "'$value'",    $query_string);
+          }
+          else {
+            $query_string = str_replace($placeholder, $value, $query_string);
+          }
+        }
+        drupal_set_message($query_string);
         $result = $query->execute();

         $view->result = array();

//在此处按视图名称和上下文过滤器获取结果

    $viewr = views_get_view('top_block_on_product_display');
    $args[] = $myarg;
    $display_id = 'default';
    $viewr->set_arguments($args);
    $viewr->set_display($display_id);
    $viewr->execute();
    $view_content = $viewr->result;

请参阅文档以获取更多参考：https : //api.drupal.org/api/views/views.module/function/views_get_view_result/7.x-3.x