我正在使用以下方法使用动态soql对联系人记录进行相当简单的查询:
public PageReference contactSearch() {
contactResultSetSize = 0;
if(!String.isEmpty(firstname) || !String.isEmpty(lastname) || !String.isEmpty(company)) {
string soql = 'Select firstname, lastname, account.Name, account.BillingStreet, account.BillingCity, account.BillingState, account.BillingPostalCode From Contact';
String whereClause = '';
if(!String.isEmpty(firstname)) {
whereClause = ' Where firstname like \'%' + firstname + '%\'';
}
if(!String.isEmpty(lastname)) {
if(!String.isEmpty(firstname)) {
whereClause += ' AND lastname like \'%' + lastname + '%\'';
}
else {
whereClause = ' Where lastname like \'%' + lastname + '%\'';
}
}
if(!String.isEmpty(company)) {
if(!String.isEmpty(firstname) || !String.isEmpty(lastname)) {
whereClause += ' AND account.Name like \'%' + company + '%\'';
}
else {
whereClause = ' Where account.Name like \'%' + company + '%\'';
}
}
soql = soql + whereClause;
List<Contact> searchResults = Database.query(soql);
contactResultSetSize = searchResults.size();
if(contactLinesForPage == null) {
contactLinesForPage = new List<ContactWrapper>();
}
for(Contact c : searchResults) {
contactLinesForPage.add(new ContactWrapper(contactLinesForPage.size(), c, ''));
}
}
return null;
}
我正在使用一个包装器类,contactLinesForPage 是我的包装器对象的列表:
public List<ContactWrapper> contactLinesForPage {get; set;}
当用户进行多次搜索时,我不想将记录重新添加到 searchResults 列表中。如何检查我的对象中是否已存在记录,这样我就不会在搜索中返回重复记录?
谢谢你的帮助。