The error “System.QueryException: List has no rows for assignment to SObject” normally occurs when you’re running a SOQL query that for some reason is giving zero results. I’ve also run into this during code deployments or testing on records that dont have related records populated.… Read More
When developing Lightning Components on the Salesforce platform a popular need is to simply display values from an apex controller directly on the lightning component. To help show how to do this I created this example where the lightning component is displaying field values returned… Read More
On Salesforce Lightning records you can now include visualforce as a component. For situations where you need to display information or dynamic UI from a query or calculation you can save a lot of time with visualforce components. After creating this visualforce page make sure… Read More
Examples showing how to reference Apex variables and queries in visualforce. Also shows how to send variables from visualforce to an apex controller. Github Repo: https://github.com/Nicholashuber/Apex-Visualforce Simply create the visualforce page and controller and click preview after saving to see the results. Apex:
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
public class AccountVF_controller { public String var1 { get; set; } public String var2 { get; set; } public Account accountRecord{get; set;} public Contact contactRecord{get; set;} //Since this is the constructor (the same name as the controller) it is being called first. public AccountVF_controller() { accountRecord = [SELECT Id,name FROM Account limit 1]; contactRecord = [SELECT Id,name FROM Contact WHERE AccountID = :accountRecord.id limit 1]; //please be aware that in this example the first account selected should have atleast 1 contact related to it. var1 = accountRecord.id; var2 = contactRecord.id; } } |
Visualforce page:… Read More
The Apex Crypto class provides a number of cryptographic functions for creating digests, message authentication codes, and signatures, as well as functions for encrypting and decrypting information. These functions allow you to protect the confidentiality of data as well as allow external systems to verify… Read More
Recently I encountered an issue where I needed to stop a trigger from running twice. For instance if you are making an update in a trigger that uses the Trigger.isUpdate context. In this scenario if we make an update inside the Trigger.isUpdate context it will loop forever… Read More
The error “System.NullPointerException: Attempt to de-reference a null object” normally occurs when you try to reference an object which has not been initialized or has null values. It can also happen when your variable is not initialized. If we dont instantiate the object that contains… Read More
A use case exists where you’ll need to leverage the ability of searching salesforce records in Visualforce. This example gets an input from the user on the visualforce page. When you click search it passes the query into the function in the controller which uses… Read More
Uploading directly from an S3 bucket from Salesforce used to be difficult, thanks to some updates on both ends its been made much easier. Simply put the blow code in you apex class and call it to save your image to AWS to then run… Read More
If you would like to send an email notification to the owner of a task when its created. Using a trigger on the task object before insert you can invoke Messaging.SingleEmailMessage. Below is a code example. Trigger:
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 |
trigger Trigger_Task_Send_Email on Task (before insert) { // We are using after insert so that we can notify after creation for(Task tsk: Trigger.New) { // Get the OwnerID for this task List<User> owners = [select Name,email from User where id = :tsk.OwnerId LIMIT 1]; for(User owner : owners) { // For each owner // Step 1: Create a new Email Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage(); // Step 2: Set list of people who should get the email List sendTo = new List(); sendTo.add(owner.email); mail.setToAddresses(sendTo); // Step 3: Set who the email is sent from mail.setReplyTo('nick@huber.codes'); mail.setSenderDisplayName('Nick Huber'); // (Optional) Set list of people who should be CC'ed List ccTo = new List(); ccTo.add('nick@huber.codes'); mail.setCcAddresses(ccTo); // Step 4. Set email contents - you can use variables! mail.setSubject('NEW TASK ASSIGNED TO YOU'); String body = 'Dear ' + owner.Name + 'You have a new task assigned to you'; mail.setHtmlBody(body); // Step 5. Add your email to the master list mails.add(mail); Messaging.sendEmail(mails); } } } |
