[Explore] Save custom url parameters when user save slices (#4578)

* [Explore] Save url parameters when user save slices

* remove print

(cherry picked from commit bd9ecbe)

* add unit test

(cherry picked from commit 0f350ad)

* wrapping all request params into url_params

(cherry picked from commit 17197c1)

superset/assets/javascripts/explore/components/ExploreViewContainer.jsx

@@ -293,6 +293,13 @@ ExploreViewContainer.propTypes = propTypes;
 
 function mapStateToProps({ explore, charts, impressionId }) {
   const form_data = getFormDataFromControls(explore.controls);
+  // fill in additional params stored in form_data but not used by control
+  Object.keys(explore.rawFormData)
+    .forEach((key) => {
+      if (form_data[key] === undefined) {
+        form_data[key] = explore.rawFormData[key];
+      }
+    });
   const chartKey = Object.keys(charts)[0];
   const chart = charts[chartKey];
   return {

superset/assets/javascripts/explore/index.jsx

@@ -25,6 +25,7 @@ initJQueryAjax();
 const exploreViewContainer = document.getElementById('app');
 const bootstrapData = JSON.parse(exploreViewContainer.getAttribute('data-bootstrap'));
 const controls = getControlsState(bootstrapData, bootstrapData.form_data);
+const rawFormData = { ...bootstrapData.form_data };
 delete bootstrapData.form_data;
 delete bootstrapData.common.locale;
 delete bootstrapData.common.language_pack;
@@ -32,6 +33,7 @@ delete bootstrapData.common.language_pack;
 // Initial state
 const bootstrappedState = Object.assign(
   bootstrapData, {
+    rawFormData,
     controls,
     filterColumnOpts: [],
     isDatasourceMetaLoading: false,

superset/assets/javascripts/explore/stores/store.js

@@ -109,6 +109,13 @@ export function applyDefaultFormData(form_data) {
       formData[k] = form_data[k];
     }
   });
+  // fill in additional params stored in form_data but not used by control
+  Object.keys(form_data)
+    .forEach((key) => {
+      if (formData[key] === undefined) {
+        formData[key] = form_data[key];
+      }
+    });
   return formData;
 }