Spring 23 for Developers

Spring 23 enhancements and new features for the Spring 23 release of Salesforce. Presented at the London Salesforce Developers Trailblazer group meetup in April 2023.

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1. Spring 23 For Developers
2. LWC References Access HTML element via a reference • HTML <template> <div lwc:ref="userInfo"> ... </div> </template> • JavaScript let userInfoEle=this.refs.userInfo;
3. LWC References String literals only • No dynamically generated names :( Cannot use in for:each or iterator LWC1158: Invalid lwc:ref usage on element "<li>". lwc:ref cannot be used inside for:each or an iterator. Can have multiple elements with identical references <div lwc:ref="userInfo"> … </div> <span lwc:ref="userInfo">… </span> ← Winner!
4. Benefits over data-* attributes • Clarity - clear purpose to provide a reference • Hygiene - refs do not appear in rendered HTML • Performance ◦ this.refs built once by the platform ◦ Not evaluating selector across all objects LWC References
5. •lwc:if •lwc:else •lwc:elseif Use in preference to if:true, if:false • More performant • Old versions will be deprecated and removed in future LWC Conditional Directives
6. lwc:elseif and lwc:else must be immediately preceded by lwc:if or lwc:elseif LWC Conditional Directives <template lwc:elseif={sayGoodbye}> Goodbye! </template> <div>World!</div> ← Error! <template lwc:else> Nothing to say! </template> <template lwc:if={sayHello}> Hello World! </template> <template lwc:elseif={sayGoodbye}> Goodbye World! </template> <template lwc:else> Nothing to say! </template>
7. Apply security of logged in user • Sharing rules (regardless of class sharing keywords) • Field Level Security • Object Permissions Use over WITH SECURITY ENFORCED • Handles polymorphic fields (Owner, TaskId) • Applies to all clauses (including WHERE) • Finds all errors in query (security enforced only returns first) User Mode Database Operations GA
8. User Mode Database Operations GA SOQL WITH clause List<Contact> contacts=[select id, FirstName from Contact WITH USER_MODE]; DML as user Account acc=new Account(Name=’Buzzard, inc’); insert as user acc;
9. User Mode Database Operations GA Can specify system mode List<Contact> contacts=[select id, FirstName from Contact WITH SYSTEM_MODE]; ... insert as system acc; Cannot elevate to system mode where user mode enforced • Anonymous Apex
10. Specify delay when enqueing job System.enqueueJob(new CheckForResults(), 5); Delays job execution by 5 minutes Range : 0-10 minutes Configure org-wide default delay for enqueued jobs • Setup -> Apex Settings • 1-600 seconds Doesn't override delay parameter on enqueueJob Delay Enqueued Job GA
11. Dynamic SOQL supports simple binds (primitives) with local scope Database.queryWithBinds supports bind variables. • Fields from sObjects • Results from method calls • Static variables Map acctBinds = new Map{'acctName' => new AccountService().defaultAccountName}; List accts = Database.queryWithBinds('SELECT Id FROM Account WHERE Name = :acctName', acctBinds, AccessLevel.USER_MODE); SOQL Query with Bind Variable Map
12. Handles dotted names in query SOQL Query with Bind Variable Map • Badly! Map<String, Object> params = new Map<String, Object> { 'recordId' => '0018000001bLUTVAA4' }; String query = 'SELECT Id, Name FROM Account WHERE Id = :any.prefix.you.like.recordId' ; List<Account> accounts = Database.queryWithBinds(query, params, AccessLevel.USER_MODE);