我在控制器中抛出了一些自定义异常，我注意到有多个错误，错误不会一次显示。而是在页面上一次显示一个。我正在使用pageMessages组件。
我认为问题出在控制器中，我是如何在catch块中为所有不同的方法添加错误。
这是我的班级：
public with sharing class CallReportControllerExtension {
private Call_Report__c callReport;
public Boolean isEditMode {get; set;}
public List<Participants> participantLinesForPage {get; set;}
public List<ProductsPresented> productLinesForPage {get; set;}
public List<Tasks> taskLinesForPage {get; set;}
public CallReportControllerExtension(ApexPages.StandardController stdController) {
this.callReport = (Call_Report__c)stdController.getRecord();
isEditMode = isEditPage(ApexPages.currentPage().getParameters().get('save_new'));
refreshParticipantLineItems();
refreshProductLineItems();
refreshTaskLineItems();
}
public PageReference save() {
Savepoint sp = Database.setSavepoint();
try {
insert callReport;
upsertParticipants(callReport.Id);
upsertProducts(callReport.Id);
upsertTasks(callReport.Id);
}
catch(Exception ex) {
ApexPages.addMessages(ex);
Database.rollback(sp);
callReport = callReport.clone(false);
return null;
}
PageReference pageRef = new ApexPages.StandardController(callReport).view();
pageRef.setRedirect(true);
return pageRef;
}
public PageReference updateCallReport() {
Savepoint sp = Database.setSavepoint();
try {
update callReport;
upsertParticipants(callReport.Id);
upsertProducts(callReport.Id);
upsertTasks(callReport.Id);
}
catch(Exception ex) {
ApexPages.addMessages(ex);
Database.rollback(sp);
return null;
}
PageReference pageRef = new ApexPages.StandardController(callReport).view();
pageRef.setRedirect(true);
return pageRef;
}
private PageReference upsertParticipants(String callreportid) {
List<Participant__c> recordsToUpsert = new List<Participant__c>();
for(Participants parts : participantLinesForPage) {
if(parts.participantLine.Call_Report__c == null) {
Participant__c p = new Participant__c();
p.Call_Report__c = callreportid;
if(!String.isEmpty(parts.accountId)) {
p.Account__c = parts.accountId;
} else {
p.Account__c = null;
}
if(!String.isEmpty(parts.contactId)) {
p.Contact__c = parts.contactId;
} else {
p.Contact__c = null;
}
if(!String.isEmpty(parts.userId)) {
p.User__c = parts.userId;
} else {
p.User__c = null;
}
recordsToUpsert.add(p);
}
else {
if(!String.isEmpty(parts.accountId)) {
parts.participantLine.Account__c = parts.accountId;
} else {
parts.participantLine.Account__c = null;
}
if(!String.isEmpty(parts.contactId)) {
parts.participantLine.Contact__c = parts.contactId;
} else {
parts.participantLine.Contact__c = null;
}
if(!String.isEmpty(parts.userId)) {
parts.participantLine.User__c = parts.userId;
} else {
parts.participantLine.User__c = null;
}
recordsToUpsert.add(parts.participantLine);
}
}
if(!recordsToUpsert.isEmpty() && recordsToUpsert.size() > 0) {
try {
upsert recordsToUpsert;
}
catch(Exception ex) {
ApexPages.addMessages(ex);
return null;
}
}
return null;
}
private PageReference upsertProducts(String callreportid) {
List<Products_Presented__c> recordsToUpsert = new List<Products_Presented__c>();
for(ProductsPresented prodPresented : productLinesForPage) {
if(prodPresented.productLine.Call_Report__c == null) {
Products_Presented__c pp = new Products_Presented__c();
pp.Call_Report__c = callreportid;
if(!String.isEmpty(prodPresented.productId)) {
pp.Product__c = prodPresented.productId;
} else {
throw new CallReportException('The Product presented field is blank. Please select a product.');
}
pp.Notes__c = prodPresented.productLine.Notes__c;
pp.At_Risk__c = prodPresented.productLine.At_Risk__c;
recordsToUpsert.add(pp);
}
else {
if(!String.isEmpty(prodPresented.productId)) {
prodPresented.productLine.Product__c = prodPresented.productId;
} else {
throw new CallReportException('The Product presented field is blank. Please select a product.');
}
prodPresented.productLine.Notes__c = prodPresented.productLine.Notes__c;
prodPresented.productLine.At_Risk__c = prodPresented.productLine.At_Risk__c;
recordsToUpsert.add(prodPresented.productLine);
}
}
if(!recordsToUpsert.isEmpty() && recordsToUpsert.size() > 0) {
try {
upsert recordsToUpsert;
}
catch(Exception ex) {
ApexPages.addMessages(ex);
return null;
}
}
return null;
}
private PageReference upsertTasks(String callreportid) {
List<Task> recordsToUpsert = new List<Task>();
for(Tasks t : taskLinesForPage) {
if(t.taskLine.WhatId == null) {
Task task = new Task();
task.WhatId = callreportid;
if(!String.isEmpty(t.whoId)) {
task.WhoId = t.whoId;
} else {
task.WhoId = null;
}
if(String.isEmpty(t.userId)) throw new CallReportException('The Assigned To field is blank. Please select a user that is assigned this task.');
task.OwnerId = t.userId;
task.Subject = 'Call Report Task';
task.ActivityDate = t.taskLine.ActivityDate;
task.Description = t.taskLine.Description;
task.Status = 'Not Started';
task.Priority = 'Normal';
recordsToUpsert.add(task);
}
else {
if(!String.isEmpty(t.whoId)) {
t.taskLine.WhoId = t.whoId;
} else {
t.taskLine.WhoId = null;
}
if(String.isEmpty(t.userId)) throw new CallReportException('The Assigned To field is blank. Please select a user that is assigned this task.');
t.taskLine.OwnerId = t.userId;
t.taskLine.ActivityDate = t.taskLine.ActivityDate;
t.taskLine.Description = t.taskLine.Description;
recordsToUpsert.add(t.taskLine);
}
}
if(!recordsToUpsert.isEmpty() && recordsToUpsert.size() > 0) {
try {
upsert recordsToUpsert;
}
catch(Exception ex) {
ApexPages.addMessages(ex);
return null;
}
}
return null;
}
public PageReference addParticipant() {
Participant__c newRecord = new Participant__c();
participantLinesForPage.add(new Participants(participantLinesForPage.size(), newRecord, newRecord.Account__r.Id, newRecord.Account__r.Name, newRecord.Contact__r.Id, newRecord.Contact__r.Name, newRecord.User__r.Id, newRecord.User__r.Name));
return null;
}
public PageReference deleteParticipant() {
Integer selectId = Integer.valueOf(ApexPages.currentPage().getParameters().get('del'));
Participants toRemove = participantLinesForPage.get(selectId);
try {
if(toRemove.participantLine.Id != null) {
delete [select Id from Participant__c where Id =: toRemove.ParticipantLine.Id];
}
participantLinesForPage.remove(selectId);
} catch (Exception e) {
ApexPages.addMessages(e);
}
Integer iterate = 0;
for(Participants parts : participantLinesForPage) {
parts.iterate = iterate;
iterate +=1;
}
return null;
}
public PageReference addProduct() {
Products_Presented__c newRecord = new Products_Presented__c();
productLinesForPage.add(new ProductsPresented(productLinesForPage.size(), newRecord, newRecord.Product__r.Id, newRecord.Product__r.Name));
return null;
}
public PageReference deleteProduct() {
Integer selectId = Integer.valueOf(ApexPages.currentPage().getParameters().get('del'));
ProductsPresented toRemove = productLinesForPage.get(selectId);
try {
if(toRemove.productLine.Id != null) {
delete [select Id from Products_Presented__c where Id =: toRemove.productLine.Id];
}
productLinesForPage.remove(selectId);
} catch (Exception e) {
ApexPages.addMessages(e);
}
Integer iterate = 0;
for(ProductsPresented prods : productLinesForPage) {
prods.iterate = iterate;
iterate +=1;
}
return null;
}
public PageReference addTask() {
Task newRecord = new Task();
taskLinesForPage.add(new Tasks(taskLinesForPage.size(), newRecord, newRecord.Who.Id, newRecord.Who.Name, newRecord.Owner.Id, newRecord.Owner.Name));
return null;
}
public PageReference deleteTask() {
Integer selectId = Integer.valueOf(ApexPages.currentPage().getParameters().get('del'));
Tasks toRemove = taskLinesForPage.get(selectId);
try {
if(toRemove.taskLine.Id != null) {
delete [select Id from Task where Id =: toRemove.taskLine.Id];
}
taskLinesForPage.remove(selectId);
} catch (Exception e) {
ApexPages.addMessages(e);
}
Integer iterate = 0;
for(Tasks tasks : taskLinesForPage) {
tasks.iterate = iterate;
iterate +=1;
}
return null;
}
private void refreshParticipantLineItems() {
List<Participant__c> lineItems = [select Account__c, Account__r.Id, Account__r.Name, Contact__c, Contact__r.Id, Contact__r.Name, User__c, User__r.Id, User__r.Name, Spent_Amount__c, Call_Report__c from Participant__c where Call_Report__c =: callReport.Id];
participantLinesForPage = new List<Participants>();
Integer iterate = 0;
for(Participant__c p : lineItems) {
participantLinesForPage.add(new Participants(iterate, p, String.valueOf(p.Account__r.Id), p.Account__r.Name, String.valueOf(p.Contact__r.Id), p.Contact__r.Name, String.valueOf(p.User__r.Id), p.User__r.Name));
iterate += 1;
}
}
private void refreshProductLineItems() {
List<Products_Presented__c> prodsPresentedLineItems = [select Product__r.Id, Product__r.Name, Call_Report__c, Notes__c, At_Risk__c from Products_Presented__c where Call_Report__c =: callReport.Id];
productLinesForPage = new List<ProductsPresented>();
Integer iterate = 0;
for(Products_Presented__c pp : prodsPresentedLineItems) {
productLinesForPage.add(new ProductsPresented(iterate, pp, String.valueOf(pp.Product__r.Id), pp.Product__r.Name));
iterate += 1;
}
}
private void refreshTaskLineItems() {
List<Task> taskLineItems = new List<Task>();
if(callReport.Id != null) {
taskLineItems = [select Who.Id, Who.Name, ActivityDate, Description, WhatId, OwnerId, Owner.Id, Owner.Name from Task where WhatId =: callReport.Id];
}
taskLinesForPage = new List<Tasks>();
Integer iterate = 0;
for(Task t : taskLineItems) {
taskLinesForPage.add(new Tasks(iterate, t, String.valueOf(t.Who.Id), t.Who.Name, String.valueOf(t.Owner.Id), t.Owner.Name));
iterate += 1;
}
}
private Boolean isEditPage(String param) {
Boolean retval = true;
if(param != null) {
retval = false;
}
return retval;
}
class Participants {
public Integer iterate {get; set;}
public Participant__c participantLine {get; set;}
public String accountId {get; set;}
public String accountName {get; set;}
public String contactId {get; set;}
public String contactName {get; set;}
public String userId {get; set;}
public String userName {get; set;}
public Participants(Integer iterate, Participant__c participantLine, String accountId, String accountName, String contactId, String contactName, String userId, String userName) {
this.iterate = iterate;
this.participantLine = participantLine;
this.accountId = accountId;
this.accountName = accountName;
this.contactId = contactId;
this.contactName = contactName;
this.userId = userId;
this.userName = userName;
}
}
class ProductsPresented {
public Integer iterate {get; set;}
public Products_Presented__c productLine {get; set;}
public String productId {get; set;}
public String productName {get; set;}
public ProductsPresented(Integer iterate, Products_Presented__c productLine, String productId, String productName) {
this.iterate = iterate;
this.productLine = productLine;
this.productId = productId;
this.productName = productName;
}
}
class Tasks {
public Integer iterate {get; set;}
public Task taskLine {get; set;}
public String whoId {get; set;}
public String whoName {get; set;}
public String userId {get; set;}
public String userName {get; set;}
public Tasks(Integer iterate, Task taskLine, String whoId, String whoName, String userId, String userName) {
this.iterate = iterate;
this.taskLine = taskLine;
this.whoId = whoId;
this.whoName = whoName;
this.userId = userId;
this.userName = userName;
}
}
}
感谢您的帮助。
答案 0 :(得分：1)
例如，您有四个DML操作并且第一个操作失败，因此代码不会继续执行第二个操作。所以你只在页面上显示第一个错误。
try {
action 1;
action 2;
action 3;
action 4;
} catch(Exception ex) {
ApexPages.addMessages(ex);
}
如果有必要，您可以将其更改为此类内容。
try { action 1;}catch(exception ex){ApexPages.addMessage(new ApexPages.message(ApexPages.severity.ERROR,ex.getMessage()));}
try { action 2;}catch(exception ex){ApexPages.addMessage(new ApexPages.message(ApexPages.severity.ERROR,ex.getMessage()));}...
if(ApexPages.hasMessages())return null;