Enable identity insert on view's base table

Author: aidanharan

CHANGELOG.md

@@ -9,4 +9,8 @@
 - [#1153](https://github.com/rails-sqlserver/activerecord-sqlserver-adapter/pull/1153) Only support Ruby v3.1+
 - [#1196](https://github.com/rails-sqlserver/activerecord-sqlserver-adapter/pull/1196) Use default inspect for database adapter
 
+#### Fixed
+
+- [#](https://github.com/rails-sqlserver/activerecord-sqlserver-adapter/pull/) Enable identity insert on view's base table
+
 Please check [7-1-stable](https://github.com/rails-sqlserver/activerecord-sqlserver-adapter/blob/7-1-stable/CHANGELOG.md) for previous changes.

lib/active_record/connection_adapters/sqlserver/database_statements.rb

@@ -42,6 +42,9 @@ def internal_exec_query(sql, name = "SQL", binds = [], prepare: false, async: fa
           log(sql, name, binds, async: async) do |notification_payload|
             with_raw_connection do |conn|
               result = if id_insert_table_name = query_requires_identity_insert?(sql)
+                         # If the table name is a view, we need to get the base table name for enabling identity insert.
+                         id_insert_table_name = view_table_name(id_insert_table_name) if view_exists?(id_insert_table_name)
+
                          with_identity_insert_enabled(id_insert_table_name, conn) do
                            internal_exec_sql_query(sql, conn)
                          end

test/cases/view_test_sqlserver.rb

@@ -47,4 +47,12 @@ class ViewTestSQLServer < ActiveRecord::TestCase
       assert_equal 1, klass.count
     end
   end
+  
+  describe 'identity insert' do
+    it "identity insert works with views" do
+      assert_difference("SSTestCustomersView.count", 1) do
+        SSTestCustomersView.create!(id: 5, name: "Bob")
+      end
+    end
+  end
 end