保存上一页的数据

questionnaire/src/app/age/age.component.ts

@@ -14,12 +14,13 @@ export class AgeComponent implements OnInit {
   isShow: boolean;
   curQues: any;
   curQuesIndex: number;
-  curQuestionSelecte: string;
   pageAnswers: any;
   // 可添加的孩子总个数
   totalChildLimitCount: number;
   questionSubId: number;
   question: any;
+  // 上一次的答案
+  lastQuestions: Array<any>;
 
   constructor(private commonService: CommonService, private router: Router, private route: ActivatedRoute) {
     /**
@@ -39,6 +40,7 @@ export class AgeComponent implements OnInit {
   }
 
   ngOnInit() {
+    this.lastQuestions = this.commonService.todosCopy.filter(item => item.pageId == 3).pop();
     this.commonService.surveyInfo().then(res => {
       this.curPageData = res['data']['survey']['pages'].filter(item => item.pageId === 3).pop();
       this.pageAnswers.pageId = this.curPageData['pageId'];

questionnaire/src/app/common.service.ts

@@ -22,7 +22,9 @@ export class CommonService {
         'X-Authorization': ''
       })
     };
-
+    if (sessionStorage.getItem('todos')) {
+      this.todos = JSON.parse(sessionStorage.getItem('todos'));
+    }
   }
 
   /**
@@ -125,8 +127,13 @@ export class CommonService {
       }
     }
     this.todos.push(todo);
+    sessionStorage.setItem('todos', JSON.stringify(this.todos));
     this.todosSource.next(this.todos);
     return this;
   }
 
+  get todosCopy() {
+    return this.todos;
+  }
+
 }

questionnaire/src/app/family/family.component.ts

@@ -10,6 +10,8 @@ export class FamilyComponent implements OnInit {
   curPageData: Array<any>;
   pageAnswers: any;
   selectedOptionId: any;
+  // 上一次的答案
+  lastQuestions: Array<any>;
 
   constructor(private commonService: CommonService, private router: Router) {
     this.pageAnswers = {
@@ -23,8 +25,22 @@ export class FamilyComponent implements OnInit {
   }
 
   ngOnInit() {
+    this.lastQuestions = this.commonService.todosCopy.filter(item => item.pageId == 2).pop();
     this.commonService.surveyInfo().then(res => {
       this.curPageData = res['data']['survey']['pages'].filter(item => item.pageId === 2).pop();
+      for (let i = 0; i < this.lastQuestions['questions'].length; i++) {
+        for (let j = 0; j < this.curPageData['questions'].length; j++) {
+          if (this.lastQuestions['questions'][i].questionId == this.curPageData['questions'][j].questionId) {
+            for (let m = 0; m < this.lastQuestions['questions'][i].options.length; m++) {
+              for (let n = 0; n < this.curPageData['questions'][i].options.length; n++) {
+                if (this.lastQuestions['questions'][i].options[m].optionId == this.curPageData['questions'][i].options[n].optionId) {
+                  this.selectedFamily(this.curPageData['questions'][i].options[n]);
+                }
+              }
+            }
+          }
+        }
+      }
       // console.log(this.curPageData)
     });
   }
@@ -32,7 +48,7 @@ export class FamilyComponent implements OnInit {
 //  选择家庭结构
   selectedFamily(option) {
     this.selectedOptionId = option.optionId;
-    const options = this.curPageData['questions'][0]['options']
+    const options = this.curPageData['questions'][0]['options'];
     for (let i = 0; i < options.length; i++) {
       if (option['optionId'] == options[i]['optionId']) {
         options[i]['selected'] = true;
@@ -49,7 +65,7 @@ export class FamilyComponent implements OnInit {
       }],
     };
     this.commonService.addAnswer(this.pageAnswers);
-    console.log(this.pageAnswers)
+    // console.log(this.pageAnswers)
   }
 
 //   下一步