constants

src/actions/headergroup.js

+import * as types from '../constants/ActionTypes'
+
 export const cloneElement = (element) => ({
-  type: 'CLONE_ELEMENT',
+  type: types.CLONE_ELEMENT,
   element
 })
 
 export const deleteLastElement = () => ({
-  type: 'DELETE_LAST_ELEMENT'
+  type: types.DELETE_LAST_ELEMENT
 })
 
 export const deleteElement = (element) => ({
-  type: 'DELETE_ELEMENT',
+  type: types.DELETE_ELEMENT,
   element
 })

src/constants/ActionTypes.js

+export const CLONE_ELEMENT = 'CLONE_ELEMENT'
+export const DELETE_LAST_ELEMENT = 'DELETE_LAST_ELEMENT'
+export const DELETE_ELEMENT = 'DELETE_ELEMENT'

src/reducers/headergroup.js

 import { List } from 'immutable'
+import { CLONE_ELEMENT, DELETE_LAST_ELEMENT, DELETE_ELEMENT } from '../constants/ActionTypes'
 
 const init_state = List([
   { id: 1, name: "药库", initialPos: {x: 80, y: 70}, target_type: 'RegionalDesign::Repo' },
@@ -8,16 +9,16 @@ const init_state = List([
 
 const headergroup = (state = init_state, action) => {
   switch (action.type) {
-    case 'CLONE_ELEMENT':
+    case CLONE_ELEMENT:
       return [
         ...state,
         action.element
       ]
-    case 'DELETE_LAST_ELEMENT':
+    case DELETE_LAST_ELEMENT:
       return [
         ...state.slice(0, -1),
       ]
-    case 'DELETE_ELEMENT':
+    case DELETE_ELEMENT:
       const index = state.indexOf(action.element)
       return [
         ...state.slice(0, index),