[TSVB] Replace deprecated moving_avg by moving_fn aggregation

src/legacy/core_plugins/kibana/migrations.js

@@ -135,6 +135,7 @@ const migrateDateHistogramAggregation = doc => {
 };
 
 const executeMigrations720 = flow(migratePercentileRankAggregation, migrateDateHistogramAggregation);
+const executeMigrations730 = flow(migrateGaugeVerticalSplitToAlignment, replaceMovAvgToMovFn);
 
 function removeDateHistogramTimeZones(doc) {
   const visStateJSON = get(doc, 'attributes.visState');
@@ -190,6 +191,51 @@ function migrateGaugeVerticalSplitToAlignment(doc)  {
   return doc;
 }
 
+function replaceMovAvgToMovFn(doc) {
+  const visState = get(doc, 'attributes.visState');
+  let newVisState;
+
+  if (visState) {
+    try {
+      newVisState = JSON.parse(visState);
+    } catch (e) {
+      // Let it go, the data is invalid and we'll leave it as is
+    }
+
+    if (newVisState.type === 'metrics') {
+      const series = get(newVisState, 'params.series', []);
+
+      series.forEach(part => {
+        (part.metrics || []).forEach(metric => {
+          if (metric.type === 'moving_average') {
+            metric.model_type = metric.model;
+            metric.alpha = 0;
+            metric.beta = 0;
+            metric.gamma = 0;
+            metric.period = 1;
+            metric.multiplicative = true;
+
+            delete metric.minimize;
+            delete metric.model;
+            delete metric.settings;
+            delete metric.predict;
+          }
+        });
+      });
+
+      return {
+        ...doc,
+        attributes: {
+          ...doc.attributes,
+          visState: JSON.stringify(newVisState),
+        },
+      };
+    }
+  }
+
+  return doc;
+}
+
 export const migrations = {
   'index-pattern': {
     '6.5.0': (doc) => {
@@ -292,7 +338,7 @@ export const migrations = {
     },
     '7.0.1': removeDateHistogramTimeZones,
     '7.2.0': doc => executeMigrations720(doc),
-    '7.3.0': migrateGaugeVerticalSplitToAlignment
+    '7.3.0': doc => executeMigrations730(doc),
   },
   dashboard: {
     '7.0.0': (doc) => {

src/legacy/core_plugins/metrics/common/model_options.js

@@ -0,0 +1,26 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+export const MODEL_TYPES = {
+  UNWEIGHTED: 'simple',
+  WEIGHTED_EXPONENTIAL: 'ewma',
+  WEIGHTED_EXPONENTIAL_DOUBLE: 'holt',
+  WEIGHTED_EXPONENTIAL_TRIPLE: 'holt_winters',
+  WEIGHTED_LINEAR: 'linear',
+};

src/legacy/core_plugins/metrics/common/model_options.test.js

@@ -0,0 +1,29 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { MODEL_TYPES } from './model_options';
+
+describe('src/legacy/core_plugins/metrics/common/model_options.js', () => {
+  describe('MODEL_TYPES', () => {
+    test('should match a snapshot of constants', () => {
+      expect(MODEL_TYPES).toMatchSnapshot();
+    });
+  });
+});
+