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piyushgupta20141.3916098907207268E12 Apex triggers
Hii
I want to restrict user to prevent duplicate email ids.When I am entering email id like abc@gmail.com which is already present in database of product.
.
trigger trgr on Product__c (before insert) {
//Take a List & Map
list<string> emailAddresses= new list<string>();
map<string,id> existingEmails= new map<string,id>();
//For all product that are being inserted
for(Product__c ptc: trigger.new) {
//If the Product have a n Email ID Field value then add that into the Email Address List.
if(ptc.Dealer_Email_id__c!=null) {
emailAddresses.add(ptc.Dealer_Email_id__c);
}
}
//Extract all the products in a list which have the Delar Email in the above list.
list<Product__c> pclst = new list<Product__c> ([select id,Dealer_Email_id__c from Product__c where Dealer_Email_id__c IN: emailAddresses ]);
// And for all those newly inserted products . insert them in a map to check if the email is existed in the repository or not , if there is match then give error Duplicate not allowd.
for(Product__c pt: trigger.new) {
existingEmails.put(pt.Dealer_Email_id__c,pt.id);
}
for(Product__c ptc: trigger.new)
{
if(existingEmails.get(ptc.Dealer_Email_id__c)!=null)
{
ptc.addError('Duplicates not allowed');
}
}
}
I want to restrict user to prevent duplicate email ids.When I am entering email id like abc@gmail.com which is already present in database of product.
.
trigger trgr on Product__c (before insert) {
//Take a List & Map
list<string> emailAddresses= new list<string>();
map<string,id> existingEmails= new map<string,id>();
//For all product that are being inserted
for(Product__c ptc: trigger.new) {
//If the Product have a n Email ID Field value then add that into the Email Address List.
if(ptc.Dealer_Email_id__c!=null) {
emailAddresses.add(ptc.Dealer_Email_id__c);
}
}
//Extract all the products in a list which have the Delar Email in the above list.
list<Product__c> pclst = new list<Product__c> ([select id,Dealer_Email_id__c from Product__c where Dealer_Email_id__c IN: emailAddresses ]);
// And for all those newly inserted products . insert them in a map to check if the email is existed in the repository or not , if there is match then give error Duplicate not allowd.
for(Product__c pt: trigger.new) {
existingEmails.put(pt.Dealer_Email_id__c,pt.id);
}
for(Product__c ptc: trigger.new)
{
if(existingEmails.get(ptc.Dealer_Email_id__c)!=null)
{
ptc.addError('Duplicates not allowed');
}
}
}
So what is the complete code for this.
trigger Book_FindDuplicateEmail on indra_sid__Book__c (before insert, before update) {
//Take a List & Map
set<string> emailAddresses= new set<string>();
map<string,id> existingEmails= new map<string,id>();
//For all product that are being inserted
for(indra_sid__Book__c ptc: listOfNew) {
//If the Product have a n Email ID Field value then add that into the Email Address List.
if(ptc.Dealer_Email_id__c!=null) {
emailAddresses.add(ptc.Dealer_Email_id__c);
}
}
//Extract all the products in a list which have the Delar Email in the above list.
list<indra_sid__Book__c> pclst = new list<indra_sid__Book__c> ([select id,Dealer_Email_id__c from indra_sid__Book__c where Dealer_Email_id__c IN: emailAddresses ]);
for(indra_sid__Book__c newRecord : listOfNew){
for(indra_sid__Book__c alreadyExist : pclst){
if(alreadyExist.indra_sid__Dealer_Email_id__c == newRecord.indra_sid__Dealer_Email_id__c)
newRecord.addError('Email already Exist');
}
}
}
Thanks
Siddhant
trigger trgr on Product__c (before insert, before update) {
//Extract all the products in a list which have the Delar Email in the above list.
list<Product__c> pclst = [select id,Dealer_Email_id__c from Product__c ];
for(Product__c p : pclst)
{
for(Product__c ptc: trigger.new)
{
if(ptc.Dealer_Email_id__c == p.Dealer_Email_id__c)
{
ptc.addError('Records Already Exist');
}
}
}
}