Issue #2801929 by Lendude, ridhimaabrol24, Sutharsan, gilles.koffmann,...

Issue #2801929 by Lendude, ridhimaabrol24, Sutharsan, gilles.koffmann, geek-merlin, dawehner: View loses records after adding comment count field

(cherry picked from commit 0ee1b660dc1638bfa4ab902bd5831548b2dc162f)

core/modules/comment/src/CommentViewsData.php

@@ -250,7 +250,7 @@ public function getViewsData() {
       // the same two tables is not supported.
       if (\Drupal::service('comment.manager')->getFields($type)) {
         $data['comment_entity_statistics']['table']['join'][$entity_type->getDataTable() ?: $entity_type->getBaseTable()] = [
-          'type' => 'INNER',
+          'type' => 'LEFT',
           'left_field' => $entity_type->getKey('id'),
           'field' => 'entity_id',
           'extra' => [

core/modules/comment/tests/modules/comment_test_views/test_views/views.view.test_comment_count.yml

+langcode: en
+status: true
+dependencies:
+  module:
+    - node
+    - user
+id: test_comment_count
+label: 'test comment count'
+module: views
+description: ''
+tag: ''
+base_table: node_field_data
+base_field: nid
+display:
+  default:
+    display_plugin: default
+    id: default
+    display_title: Master
+    position: 0
+    display_options:
+      access:
+        type: perm
+        options:
+          perm: 'access content'
+      cache:
+        type: tag
+        options: {  }
+      query:
+        type: views_query
+        options:
+          disable_sql_rewrite: false
+          distinct: false
+          replica: false
+          query_comment: ''
+          query_tags: {  }
+      exposed_form:
+        type: basic
+        options:
+          submit_button: Apply
+          reset_button: false
+          reset_button_label: Reset
+          exposed_sorts_label: 'Sort by'
+          expose_sort_order: true
+          sort_asc_label: Asc
+          sort_desc_label: Desc
+      pager:
+        type: mini
+        options:
+          items_per_page: 10
+          offset: 0
+          id: 0
+          total_pages: null
+          expose:
+            items_per_page: false
+            items_per_page_label: 'Items per page'
+            items_per_page_options: '5, 10, 25, 50'
+            items_per_page_options_all: false
+            items_per_page_options_all_label: '- All -'
+            offset: false
+            offset_label: Offset
+          tags:
+            previous: ‹‹
+            next: ››
+      style:
+        type: default
+        options:
+          grouping: {  }
+          row_class: ''
+          default_row_class: true
+          uses_fields: false
+      row:
+        type: fields
+        options:
+          inline: {  }
+          separator: ''
+          hide_empty: false
+          default_field_elements: true
+      fields:
+        title:
+          id: title
+          table: node_field_data
+          field: title
+          entity_type: node
+          entity_field: title
+          label: ''
+          alter:
+            alter_text: false
+            make_link: false
+            absolute: false
+            trim: false
+            word_boundary: false
+            ellipsis: false
+            strip_tags: false
+            html: false
+          hide_empty: false
+          empty_zero: false
+          settings:
+            link_to_entity: true
+          plugin_id: field
+          relationship: none
+          group_type: group
+          admin_label: ''
+          exclude: false
+          element_type: ''
+          element_class: ''
+          element_label_type: ''
+          element_label_class: ''
+          element_label_colon: true
+          element_wrapper_type: ''
+          element_wrapper_class: ''
+          element_default_classes: true
+          empty: ''
+          hide_alter_empty: true
+          click_sort_column: value
+          type: string
+          group_column: value
+          group_columns: {  }
+          group_rows: true
+          delta_limit: 0
+          delta_offset: 0
+          delta_reversed: false
+          delta_first_last: false
+          multi_type: separator
+          separator: ', '
+          field_api_classes: false
+        comment_count:
+          id: comment_count
+          table: comment_entity_statistics
+          field: comment_count
+          relationship: none
+          group_type: group
+          admin_label: ''
+          label: ''
+          exclude: false
+          alter:
+            alter_text: false
+            text: ''
+            make_link: false
+            path: ''
+            absolute: false
+            external: false
+            replace_spaces: false
+            path_case: none
+            trim_whitespace: false
+            alt: ''
+            rel: ''
+            link_class: ''
+            prefix: ''
+            suffix: ''
+            target: ''
+            nl2br: false
+            max_length: 0
+            word_boundary: true
+            ellipsis: true
+            more_link: false
+            more_link_text: ''
+            more_link_path: ''
+            strip_tags: false
+            trim: false
+            preserve_tags: ''
+            html: false
+          element_type: ''
+          element_class: ''
+          element_label_type: ''
+          element_label_class: ''
+          element_label_colon: false
+          element_wrapper_type: ''
+          element_wrapper_class: ''
+          element_default_classes: true
+          empty: ''
+          hide_empty: false
+          empty_zero: false
+          hide_alter_empty: true
+          set_precision: false
+          precision: 0
+          decimal: .
+          separator: ''
+          format_plural: false
+          format_plural_string: !!binary MQNAY291bnQ=
+          prefix: ''
+          suffix: ''
+          plugin_id: numeric
+      filters:
+        status:
+          value: '1'
+          table: node_field_data
+          field: status
+          plugin_id: boolean
+          entity_type: node
+          entity_field: status
+          id: status
+          expose:
+            operator: ''
+            operator_limit_selection: false
+            operator_list: {  }
+          group: 1
+      sorts:
+        created:
+          id: created
+          table: node_field_data
+          field: created
+          order: DESC
+          entity_type: node
+          entity_field: created
+          plugin_id: date
+          relationship: none
+          group_type: group
+          admin_label: ''
+          exposed: false
+          expose:
+            label: ''
+          granularity: second
+      header: {  }
+      footer: {  }
+      empty: {  }
+      relationships: {  }
+      arguments: {  }
+      display_extenders: {  }
+    cache_metadata:
+      max-age: -1
+      contexts:
+        - 'languages:language_content'
+        - 'languages:language_interface'
+        - url.query_args
+        - 'user.node_grants:view'
+        - user.permissions
+      tags: {  }
+  page_1:
+    display_plugin: page
+    id: page_1
+    display_title: Page
+    position: 1
+    display_options:
+      display_extenders: {  }
+      path: test-comment-count
+    cache_metadata:
+      max-age: -1
+      contexts:
+        - 'languages:language_content'
+        - 'languages:language_interface'
+        - url.query_args
+        - 'user.node_grants:view'
+        - user.permissions
+      tags: {  }

core/modules/comment/tests/src/Functional/Views/NodeCommentsTest.php

@@ -26,7 +26,7 @@ class NodeCommentsTest extends CommentTestBase {
    *
    * @var array
    */
-  public static $testViews = ['test_new_comments'];
+  public static $testViews = ['test_new_comments', 'test_comment_count'];
 
   /**
    * Test the new comments field plugin.
@@ -38,4 +38,30 @@ public function testNewComments() {
     $this->assertCount(1, $new_comments, 'Found the number of new comments for a certain node.');
   }
 
+  /**
+   * Test the comment count field.
+   */
+  public function testCommentCount() {
+    $this->drupalGet('test-comment-count');
+    $this->assertSession()->statusCodeEquals(200);
+    $this->assertCount(2, $this->cssSelect('.views-row'));
+    $comment_count_with_comment = $this->cssSelect(".views-field-comment-count span:contains('1')");
+    $this->assertCount(1, $comment_count_with_comment);
+    $comment_count_without_comment = $this->cssSelect(".views-field-comment-count span:contains('0')");
+    $this->assertCount(1, $comment_count_without_comment);
+
+    // Create a content type with no comment field, and add a node.
+    $this->drupalCreateContentType(['type' => 'no_comment', 'name' => t('No comment page')]);
+    $this->nodeUserPosted = $this->drupalCreateNode(['type' => 'no_comment']);
+    $this->drupalGet('test-comment-count');
+
+    // Test that the node with no comment field is also shown.
+    $this->assertSession()->statusCodeEquals(200);
+    $this->assertCount(3, $this->cssSelect('.views-row'));
+    $comment_count_with_comment = $this->cssSelect(".views-field-comment-count span:contains('1')");
+    $this->assertCount(1, $comment_count_with_comment);
+    $comment_count_without_comment = $this->cssSelect(".views-field-comment-count span:contains('0')");
+    $this->assertCount(2, $comment_count_without_comment);
+  }
+
 }