stores

src/stores/courseStore.js

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+import { EventEmitter } from "events";
+import Dispatcher from "../appDispatcher";
+import actionTypes from "../actions/actionTypes";
+
+const CHANGE_EVENT = "change";
+let _courses = [];
+
+class CourseStore extends EventEmitter {
+  addChangeListener(callback) {
+    this.on(CHANGE_EVENT, callback);
+  }
+
+  removeChangeListener(callback) {
+    this.removeListener(CHANGE_EVENT, callback);
+  }
+
+  emitChange() {
+    this.emit(CHANGE_EVENT);
+  }
+
+  getCourses() {
+    return _courses;
+  }
+
+  getCourseBySlug(slug) {
+    return _courses.find(course => course.slug === slug);
+  }
+}
+
+const store = new CourseStore();
+
+Dispatcher.register(action => {
+  switch (action.actionType) {
+    case actionTypes.DELETE_COURSE:
+      _courses = _courses.filter(
+        course => course.id !== parseInt(action.id, 10)
+      );
+      store.emitChange();
+      break;
+    case actionTypes.CREATE_COURSE:
+      _courses.push(action.course);
+      store.emitChange();
+      break;
+    case actionTypes.UPDATE_COURSE:
+      _courses = _courses.map(course =>
+        course.id === action.course.id ? action.course : course
+      );
+      store.emitChange();
+      break;
+    case actionTypes.LOAD_COURSES:
+      _courses = action.courses;
+      store.emitChange();
+      break;
+    default:
+    // nothing to do here
+  }
+});
+
+export default store;

src/stores/userStore.js

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+import { EventEmitter } from "events";
+import Dispatcher from "../appDispatcher";
+import actionTypes from "../actions/actionTypes";
+
+const CHANGE_EVENT = "change";
+let _users = [];
+
+class UserStore extends EventEmitter {
+  addChangeListener(callback) {
+    this.on(CHANGE_EVENT, callback);
+  }
+
+  removeChangeListener(callback) {
+    this.removeListener(CHANGE_EVENT, callback);
+  }
+
+  emitChange() {
+    this.emit(CHANGE_EVENT);
+  }
+
+  getUsers() {
+    return _users;
+  }
+
+  getUserBySlug(slug) {
+    return _users.find((user) => user.slug === slug);
+  }
+}
+
+const store = new UserStore();
+
+Dispatcher.register((action) => {
+  switch (action.actionType) {
+    case actionTypes.DELETE_USER:
+      _users = _users.filter((user) => user.id !== parseInt(action.id, 10));
+      store.emitChange();
+      break;
+    case actionTypes.CREATE_USER:
+      _users.push(action.user);
+      store.emitChange();
+      break;
+    case actionTypes.UPDATE_USER:
+      _users = _users.map((user) =>
+        user.id === action.user.id ? action.user : user
+      );
+      store.emitChange();
+      break;
+    case actionTypes.LOAD_USERS:
+      _users = action.users;
+      store.emitChange();
+      break;
+    default:
+    // nothing to do here
+  }
+});
+
+export default store;