From 2440e6d3caf19ab93a96dfce4920c0df48c63625 Mon Sep 17 00:00:00 2001
From: Bassem Mawhoob <bassem.mawhoob@live.com>
Date: Wed, 29 Oct 2025 09:47:47 +0300
Subject: [PATCH] Add support for Rails 8.1

Fixes #6
---
 .github/workflows/build.yml                        | 6 +++++-
 lib/tableless/connection.rb                        | 1 -
 lib/tableless/connection_adapters/dummy_adapter.rb | 4 ++++
 lib/tableless/connection_adapters/null_pool.rb     | 9 +++++++++
 tableless.gemspec                                  | 2 +-
 test/gemfiles/ar8_1.gemfile                        | 8 ++++++++
 6 files changed, 27 insertions(+), 3 deletions(-)
 create mode 100644 lib/tableless/connection_adapters/null_pool.rb
 create mode 100644 test/gemfiles/ar8_1.gemfile

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a307a90..1cdca9a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,12 +20,16 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         ruby: [2.7, 3.1, 3.4]
-        gemfile: [ar6, ar7, ar8]
+        gemfile: [ar6, ar7, ar8, ar8_1]
         exclude:
           - ruby: 2.7
             gemfile: ar8
+          - ruby: 2.7
+            gemfile: ar8_1
           - ruby: 3.1
             gemfile: ar8
+          - ruby: 3.1
+            gemfile: ar8_1
           - ruby: 3.4
             gemfile: ar6
     runs-on: ${{ matrix.os }}
diff --git a/lib/tableless/connection.rb b/lib/tableless/connection.rb
index 5baa858..2e61071 100644
--- a/lib/tableless/connection.rb
+++ b/lib/tableless/connection.rb
@@ -1,6 +1,5 @@
 # frozen_string_literal: true
 
-require 'tableless/connection_adapters/schema_cache'
 require 'tableless/connection_adapters/dummy_adapter'
 
 module Tableless
diff --git a/lib/tableless/connection_adapters/dummy_adapter.rb b/lib/tableless/connection_adapters/dummy_adapter.rb
index c0fd788..a7538e7 100644
--- a/lib/tableless/connection_adapters/dummy_adapter.rb
+++ b/lib/tableless/connection_adapters/dummy_adapter.rb
@@ -1,5 +1,8 @@
 # frozen_string_literal: true
 
+require 'tableless/connection_adapters/schema_cache'
+require 'tableless/connection_adapters/null_pool'
+
 module Tableless
   class DummyAdapter < ActiveRecord::ConnectionAdapters::AbstractAdapter
     DbConfig = Struct.new(:adapter)
@@ -7,6 +10,7 @@ class DummyAdapter < ActiveRecord::ConnectionAdapters::AbstractAdapter
     def initialize(*)
       super
       @schema_cache = Tableless::SchemaCache.new
+      @pool = Tableless::NullPool.new
     end
 
     def schema_cache
diff --git a/lib/tableless/connection_adapters/null_pool.rb b/lib/tableless/connection_adapters/null_pool.rb
new file mode 100644
index 0000000..9f12f45
--- /dev/null
+++ b/lib/tableless/connection_adapters/null_pool.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+module Tableless
+  class NullPool < ActiveRecord::ConnectionAdapters::NullPool
+    def with_pool_transaction_isolation_level(*)
+      yield self
+    end
+  end
+end
diff --git a/tableless.gemspec b/tableless.gemspec
index 6e05f55..589d2c1 100644
--- a/tableless.gemspec
+++ b/tableless.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = '>= 2.6'
 
-  spec.add_dependency 'activerecord', '>= 6.0', '< 8.1'
+  spec.add_dependency 'activerecord', '>= 6.0', '< 8.2'
 
   spec.add_development_dependency 'bundler', '~> 2.0'
   spec.add_development_dependency 'minitest', '~> 5.0'
diff --git a/test/gemfiles/ar8_1.gemfile b/test/gemfiles/ar8_1.gemfile
new file mode 100644
index 0000000..0090c0c
--- /dev/null
+++ b/test/gemfiles/ar8_1.gemfile
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
+
+gem 'activerecord', '~> 8.1'
+gem 'concurrent-ruby', '< 1.3.5'
+gem 'minitest'
+gem 'rake'