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coder36/apex random string

Created September 25, 2017 16:59
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Apex random string generator
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apex random string
trigger ContactGuidGenerator on Contact (before insert) {
for( Contact c: Trigger.new ) {
final String chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz';
String guid = '';
while (guid.length() < 16) {
Integer idx = Math.mod(Math.abs(Crypto.getRandomInteger()), chars.length());
guid += chars.substring(idx, idx+1);
}
c.guid__c = guid;
}
}
@nivethx
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nivethx commented Oct 11, 2018

does this create duplicate values? how to make sure that you are not having duplicate values

@nivethx
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nivethx commented Oct 11, 2018

Maybe check c.guid__c if the created random string already exist and create a new random string or not depending on that, which would be better IMO

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