where documentation

Author: pgajek2

website/docs/examples/where.md

@@ -6,6 +6,8 @@ sidebar_position: 6
 
 Use [SOQL.FilterGroup](../api/soql-filters-group.md) and Use [SOQL.Filter](../api/soql-filter.md) to build your `WHERE` clause.
 
+Define basic filters in your Selector class.
+
 ```sql
 SELECT Id, Name
 FROM Account
@@ -21,10 +23,37 @@ public inherited sharing class SOQL_Account extends SOQL implements SOQL.Selecto
         super(Account.SObjectType);
         with(Account.Id, Account.Name);
     }
+
+    public SOQL_Account byRecordType(String rt) {
+        whereAre(Filter.recordType().equal(rt));
+        return this;
+    }
+
+    public SOQL_Account byIndustry(String industry) {
+        with(Account.Industry)
+            .whereAre(Filter.with(Account.Industry).equal(industry));
+        return this;
+    }
+
+    public SOQL_Account byParentId(Id parentId) {
+        with(Account.ParentId)
+            .whereAre(Filter.with(Account.ParentId).equal(parentId));
+        return this;
+    }
 }
 
 public with sharing class MyController {
 
+    @AuraEnabled
+    public static List<Account> getAccountsByRecordType(String recordType) {
+        return SOQL_Account.query()
+            .byRecordType(recordType)
+            .byIndustry('IT')
+            .with(Account.Industry, Account.AccountSource)
+            .toList();
+    }
+
+    @AuraEnabled
     public static List<Account> getByIdOrName(Id accountId, String accountName) {
         return SOQL_Account.query()
             .whereAre(SOQL.FilterGroup