hughhhh commented on a change in pull request #4836: [WIP] Refactoring on
exploreReducer.js
URL:
https://github.com/apache/incubator-superset/pull/4836#discussion_r182546092
##########
File path: superset/assets/javascripts/explore/reducers/exploreReducer.js
##########
@@ -5,77 +5,118 @@ import * as actions from '../actions/exploreActions';
export default function exploreReducer(state = {}, action) {
const actionHandlers = {
[actions.TOGGLE_FAVE_STAR]() {
- return Object.assign({}, state, { isStarred: action.isStarred });
+ return {
+ ...state,
+ isStarred: action.isStarred,
+ };
},
[actions.FETCH_DATASOURCE_STARTED]() {
- return Object.assign({}, state, { isDatasourceMetaLoading: true });
+ return {
+ ...state,
+ isDatasourceMetaLoading: true,
+ };
},
[actions.FETCH_DATASOURCE_SUCCEEDED]() {
- return Object.assign({}, state, { isDatasourceMetaLoading: false });
+ return {
+ ...state,
+ isDatasourceMetaLoading: false,
+ };
},
[actions.FETCH_DATASOURCE_FAILED]() {
- // todo(alanna) handle failure/error state
- return Object.assign({}, state,
- {
- isDatasourceMetaLoading: false,
- controlPanelAlert: action.error,
- });
+ return {
+ ...state,
+ isDatasourceMetaLoading: false,
+ controlPanelAlert: action.error,
+ };
},
[actions.SET_DATASOURCE]() {
- return Object.assign({}, state, { datasource: action.datasource });
+
+ return {
+ ...state,
+ datasource: action.datasource,
+ };
},
[actions.FETCH_DATASOURCES_STARTED]() {
- return Object.assign({}, state, { isDatasourcesLoading: true });
+
+ return {
+ ...state,
+ isDatasourcesLoading: true,
+ };
},
[actions.FETCH_DATASOURCES_SUCCEEDED]() {
- return Object.assign({}, state, { isDatasourcesLoading: false });
+
+ return {
+ ...state,
+ isDatasourcesLoading: false,
+ };
},
[actions.FETCH_DATASOURCES_FAILED]() {
- // todo(alanna) handle failure/error state
- return Object.assign({}, state,
- {
- isDatasourcesLoading: false,
- controlPanelAlert: action.error,
- });
+
+ return {
+ ...state,
+ isDatasourcesLoading: false,
+ controlPanelAlert: action.error,
+ };
},
[actions.SET_DATASOURCES]() {
- return Object.assign({}, state, { datasources: action.datasources });
+ return {
+ ...state,
+ datasources: action.datasources,
+ };
},
[actions.REMOVE_CONTROL_PANEL_ALERT]() {
- return Object.assign({}, state, { controlPanelAlert: null });
+ return {
+ ...state,
+ controlPanelAlert: null,
+ };
},
[actions.SET_FIELD_VALUE]() {
const controls = Object.assign({}, state.controls);
const control = Object.assign({}, controls[action.controlName]);
control.value = action.value;
control.validationErrors = action.validationErrors;
controls[action.controlName] = control;
- const changes = { controls };
+ const changes = {
+ controls,
+ };
if (control.renderTrigger) {
changes.triggerRender = true;
}
- return Object.assign({}, state, changes);
+ return {
+ ...state,
+ ...changes,
+ };
},
[actions.SET_EXPLORE_CONTROLS]() {
const controls = getControlsState(state, action.formData);
- return Object.assign({}, state, { controls });
+ return {
+ ...state,
+ ...controls,
+ };
},
[actions.UPDATE_CHART_TITLE]() {
const updatedSlice = Object.assign({}, state.slice, { slice_name:
action.slice_name });
- return Object.assign({}, state, { slice: updatedSlice });
+ return {
+ ...state,
+ slice: updatedSlice,
+ };
},
[actions.RESET_FIELDS]() {
const controls = getControlsState(state,
getFormDataFromControls(state.controls));
- return Object.assign({}, state, { controls });
+ return {
+ ...state,
+ ...controls,
Review comment:
I was following the same pattern for the `Object.assign` which is merging
state and controls together. I've refactored it using the spread operator
notation.
```
> a
{ foo: 'bar' }
> b
{ hugh: 'miles' }
> {...a, ...b}
{ foo: 'bar', hugh: 'miles' }
```
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