support serializing nested searchsource

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.searchsource.getfields.md

@@ -9,15 +9,8 @@ returns all search source fields
 <b>Signature:</b>
 
 ```typescript
-getFields(recurse?: boolean): SearchSourceFields;
+getFields(): SearchSourceFields;
 ```
-
-## Parameters
-
-|  Parameter | Type | Description |
-|  --- | --- | --- |
-|  recurse | <code>boolean</code> |  |
-
 <b>Returns:</b>
 
 `SearchSourceFields`

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.searchsource.md

@@ -35,7 +35,7 @@ export declare class SearchSource
 |  [fetch(options)](./kibana-plugin-plugins-data-public.searchsource.fetch.md) |  | Fetch this source and reject the returned Promise on error |
 |  [fetch$(options)](./kibana-plugin-plugins-data-public.searchsource.fetch_.md) |  | Fetch this source from Elasticsearch, returning an observable over the response(s) |
 |  [getField(field, recurse)](./kibana-plugin-plugins-data-public.searchsource.getfield.md) |  | Gets a single field from the fields |
-|  [getFields(recurse)](./kibana-plugin-plugins-data-public.searchsource.getfields.md) |  | returns all search source fields |
+|  [getFields()](./kibana-plugin-plugins-data-public.searchsource.getfields.md) |  | returns all search source fields |
 |  [getId()](./kibana-plugin-plugins-data-public.searchsource.getid.md) |  | returns search source id |
 |  [getOwnField(field)](./kibana-plugin-plugins-data-public.searchsource.getownfield.md) |  | Get the field from our own fields, don't traverse up the chain |
 |  [getParent()](./kibana-plugin-plugins-data-public.searchsource.getparent.md) |  | Get the parent of this SearchSource  {<!-- -->undefined\|searchSource<!-- -->} |

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.searchsourcefields.md

@@ -24,6 +24,7 @@ export interface SearchSourceFields
 |  [highlight](./kibana-plugin-plugins-data-public.searchsourcefields.highlight.md) | <code>any</code> |  |
 |  [highlightAll](./kibana-plugin-plugins-data-public.searchsourcefields.highlightall.md) | <code>boolean</code> |  |
 |  [index](./kibana-plugin-plugins-data-public.searchsourcefields.index.md) | <code>IndexPattern</code> |  |
+|  [parent](./kibana-plugin-plugins-data-public.searchsourcefields.parent.md) | <code>SearchSourceFields</code> |  |
 |  [query](./kibana-plugin-plugins-data-public.searchsourcefields.query.md) | <code>Query</code> | [Query](./kibana-plugin-plugins-data-public.query.md) |
 |  [searchAfter](./kibana-plugin-plugins-data-public.searchsourcefields.searchafter.md) | <code>EsQuerySearchAfter</code> |  |
 |  [size](./kibana-plugin-plugins-data-public.searchsourcefields.size.md) | <code>number</code> |  |

docs/development/plugins/data/public/kibana-plugin-plugins-data-public.searchsourcefields.parent.md

@@ -0,0 +1,11 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [kibana-plugin-plugins-data-public](./kibana-plugin-plugins-data-public.md) &gt; [SearchSourceFields](./kibana-plugin-plugins-data-public.searchsourcefields.md) &gt; [parent](./kibana-plugin-plugins-data-public.searchsourcefields.parent.md)
+
+## SearchSourceFields.parent property
+
+<b>Signature:</b>
+
+```typescript
+parent?: SearchSourceFields;
+```

src/plugins/data/common/search/search_source/search_source.test.ts

@@ -95,164 +95,6 @@ describe('SearchSource', () => {
         }
       `);
     });
-
-    test('recurses parents to get the entire filters: plain object filter', () => {
-      const RECURSE = true;
-
-      const parent = new SearchSource({}, searchSourceDependencies);
-      parent.setField('filter', [
-        {
-          meta: {
-            index: 'd180cae0-60c3-11eb-8569-bd1f5ed24bc9',
-            params: {},
-            alias: null,
-            disabled: false,
-            negate: false,
-          },
-          query: {
-            range: {
-              '@date': {
-                gte: '2016-01-27T18:11:05.010Z',
-                lte: '2021-01-27T18:11:05.010Z',
-                format: 'strict_date_optional_time',
-              },
-            },
-          },
-        },
-      ]);
-      searchSource.setParent(parent);
-      searchSource.setField('aggs', 5);
-      expect(searchSource.getFields(RECURSE)).toMatchInlineSnapshot(`
-        Object {
-          "aggs": 5,
-          "filter": Array [
-            Object {
-              "meta": Object {
-                "alias": null,
-                "disabled": false,
-                "index": "d180cae0-60c3-11eb-8569-bd1f5ed24bc9",
-                "negate": false,
-                "params": Object {},
-              },
-              "query": Object {
-                "range": Object {
-                  "@date": Object {
-                    "format": "strict_date_optional_time",
-                    "gte": "2016-01-27T18:11:05.010Z",
-                    "lte": "2021-01-27T18:11:05.010Z",
-                  },
-                },
-              },
-            },
-          ],
-        }
-      `);
-
-      // calling twice gives the same result: no searchSources in the hierarchy were modified
-      expect(searchSource.getFields(RECURSE)).toMatchInlineSnapshot(`
-        Object {
-          "aggs": 5,
-          "filter": Array [
-            Object {
-              "meta": Object {
-                "alias": null,
-                "disabled": false,
-                "index": "d180cae0-60c3-11eb-8569-bd1f5ed24bc9",
-                "negate": false,
-                "params": Object {},
-              },
-              "query": Object {
-                "range": Object {
-                  "@date": Object {
-                    "format": "strict_date_optional_time",
-                    "gte": "2016-01-27T18:11:05.010Z",
-                    "lte": "2021-01-27T18:11:05.010Z",
-                  },
-                },
-              },
-            },
-          ],
-        }
-      `);
-    });
-
-    test('recurses parents to get the entire filters: function filter', () => {
-      const RECURSE = true;
-
-      const parent = new SearchSource({}, searchSourceDependencies);
-      parent.setField('filter', () => ({
-        meta: {
-          index: 'd180cae0-60c3-11eb-8569-bd1f5ed24bc9',
-          params: {},
-          alias: null,
-          disabled: false,
-          negate: false,
-        },
-        query: {
-          range: {
-            '@date': {
-              gte: '2016-01-27T18:11:05.010Z',
-              lte: '2021-01-27T18:11:05.010Z',
-              format: 'strict_date_optional_time',
-            },
-          },
-        },
-      }));
-      searchSource.setParent(parent);
-      searchSource.setField('aggs', 5);
-      expect(searchSource.getFields(RECURSE)).toMatchInlineSnapshot(`
-        Object {
-          "aggs": 5,
-          "filter": Array [
-            Object {
-              "meta": Object {
-                "alias": null,
-                "disabled": false,
-                "index": "d180cae0-60c3-11eb-8569-bd1f5ed24bc9",
-                "negate": false,
-                "params": Object {},
-              },
-              "query": Object {
-                "range": Object {
-                  "@date": Object {
-                    "format": "strict_date_optional_time",
-                    "gte": "2016-01-27T18:11:05.010Z",
-                    "lte": "2021-01-27T18:11:05.010Z",
-                  },
-                },
-              },
-            },
-          ],
-        }
-      `);
-
-      // calling twice gives the same result: no double-added filters
-      expect(searchSource.getFields(RECURSE)).toMatchInlineSnapshot(`
-        Object {
-          "aggs": 5,
-          "filter": Array [
-            Object {
-              "meta": Object {
-                "alias": null,
-                "disabled": false,
-                "index": "d180cae0-60c3-11eb-8569-bd1f5ed24bc9",
-                "negate": false,
-                "params": Object {},
-              },
-              "query": Object {
-                "range": Object {
-                  "@date": Object {
-                    "format": "strict_date_optional_time",
-                    "gte": "2016-01-27T18:11:05.010Z",
-                    "lte": "2021-01-27T18:11:05.010Z",
-                  },
-                },
-              },
-            },
-          ],
-        }
-      `);
-    });
   });
 
   describe('#removeField()', () => {
@@ -975,4 +817,74 @@ describe('SearchSource', () => {
       expect(request._source).toEqual(['geometry']);
     });
   });
+
+  describe('getSerializedFields', () => {
+    const filter = [
+      {
+        query: 'query',
+        meta: {
+          alias: 'alias',
+          disabled: false,
+          negate: false,
+          index: '456',
+        },
+      },
+    ];
+
+    test('should return serialized fields', () => {
+      const indexPattern123 = { id: '123' } as IndexPattern;
+      searchSource.setField('index', indexPattern123);
+      searchSource.setField('filter', () => {
+        return filter;
+      });
+      const serializedFields = searchSource.getSerializedFields();
+      expect(serializedFields).toMatchInlineSnapshot(
+        { index: '123', filter },
+        `
+        Object {
+          "filter": Array [
+            Object {
+              "meta": Object {
+                "alias": "alias",
+                "disabled": false,
+                "index": "456",
+                "negate": false,
+              },
+              "query": "query",
+            },
+          ],
+          "index": "123",
+        }
+      `
+      );
+    });
+
+    test('should support nested search sources', () => {
+      const indexPattern123 = { id: '123' } as IndexPattern;
+      searchSource.setField('index', indexPattern123);
+      searchSource.setField('from', 123);
+      const childSearchSource = searchSource.createChild();
+      childSearchSource.setField('timeout', '100');
+      const serializedFields = childSearchSource.getSerializedFields(true);
+      expect(serializedFields).toMatchInlineSnapshot(
+        {
+          timeout: '100',
+          parent: {
+            index: '123',
+            from: 123,
+          },
+        },
+        `
+        Object {
+          "index": undefined,
+          "parent": Object {
+            "from": 123,
+            "index": "123",
+          },
+          "timeout": "100",
+        }
+      `
+      );
+    });
+  });
 });

src/plugins/data/common/search/search_source/search_source.ts

@@ -59,7 +59,7 @@
  */
 
 import { setWith } from '@elastic/safer-lodash-set';
-import { uniqueId, keyBy, pick, difference, omit, isFunction, isEqual, uniqWith } from 'lodash';
+import { uniqueId, keyBy, pick, difference, isFunction, isEqual, uniqWith } from 'lodash';
 import { map, switchMap, tap } from 'rxjs/operators';
 import { defer, from } from 'rxjs';
 import { isObject } from 'rxjs/internal-compatibility';
@@ -114,8 +114,13 @@ export class SearchSource {
   private readonly dependencies: SearchSourceDependencies;
 
   constructor(fields: SearchSourceFields = {}, dependencies: SearchSourceDependencies) {
-    this.fields = fields;
+    const { parent, ...currentFields } = fields;
+    this.fields = currentFields;
     this.dependencies = dependencies;
+
+    if (parent) {
+      this.setParent(new SearchSource(parent, dependencies));
+    }
   }
 
   /** ***
@@ -173,49 +178,7 @@ export class SearchSource {
   /**
    * returns all search source fields
    */
-  getFields(recurse = false): SearchSourceFields {
-    let thisFilter = this.fields.filter; // type is single value, array, or function
-    if (thisFilter) {
-      if (typeof thisFilter === 'function') {
-        thisFilter = thisFilter() || []; // type is single value or array
-      }
-
-      if (Array.isArray(thisFilter)) {
-        thisFilter = [...thisFilter];
-      } else {
-        thisFilter = [thisFilter];
-      }
-    } else {
-      thisFilter = [];
-    }
-
-    if (recurse) {
-      const parent = this.getParent();
-      if (parent) {
-        const parentFields = parent.getFields(recurse);
-
-        let parentFilter = parentFields.filter; // type is single value, array, or function
-        if (parentFilter) {
-          if (typeof parentFilter === 'function') {
-            parentFilter = parentFilter() || []; // type is single value or array
-          }
-
-          if (Array.isArray(parentFilter)) {
-            thisFilter.push(...parentFilter);
-          } else {
-            thisFilter.push(parentFilter);
-          }
-        }
-
-        // add combined filters to the fields
-        const thisFields = {
-          ...this.fields,
-          filter: thisFilter,
-        };
-
-        return { ...parentFields, ...thisFields };
-      }
-    }
+  getFields(): SearchSourceFields {
     return { ...this.fields };
   }
 
@@ -727,9 +690,7 @@ export class SearchSource {
    * serializes search source fields (which can later be passed to {@link ISearchStartSearchSource})
    */
   public getSerializedFields(recurse = false) {
-    const { filter: originalFilters, ...searchSourceFields } = omit(this.getFields(recurse), [
-      'size',
-    ]);
+    const { filter: originalFilters, size: omit, ...searchSourceFields } = this.getFields();
     let serializedSearchSourceFields: SearchSourceFields = {
       ...searchSourceFields,
       index: (searchSourceFields.index ? searchSourceFields.index.id : undefined) as any,
@@ -741,6 +702,9 @@ export class SearchSource {
         filter: filters,
       };
     }
+    if (recurse && this.getParent()) {
+      serializedSearchSourceFields.parent = this.getParent()!.getSerializedFields(recurse);
+    }
     return serializedSearchSourceFields;
   }
 

src/plugins/data/common/search/search_source/types.ts

@@ -99,6 +99,8 @@ export interface SearchSourceFields {
   searchAfter?: EsQuerySearchAfter;
   timeout?: string;
   terminate_after?: number;
+
+  parent?: SearchSourceFields;
 }
 
 export interface SearchSourceOptions {