fix: improve api usage

.github/workflows/ci.yml

@@ -11,6 +11,13 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
+    env:
+      RAILS_VERSION: ${{ matrix.rails }}
+      RAILS_ENV: test
+      DATABASE_URL_PG: postgres://postgres:postgres@127.0.0.1:5432/closure_tree_test
+      DATABASE_URL_MYSQL: mysql2://root:root@127.0.0.1:3306/closure_tree_test
+      DATABASE_URL_SQLITE3: 'sqlite3::memory:'
+      WITH_ADVISORY_LOCK_PREFIX: ${{ github.run_id }}
 
     services:
       postgres:
@@ -46,6 +53,7 @@ jobs:
         ruby:
           - '3.4'
         rails:
+          - '7.2'
           - '8.0'
           - '8.1.1'
 
@@ -59,26 +67,12 @@ jobs:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true
           rubygems: latest
-        env:
-          RAILS_VERSION: ${{ matrix.rails }}
-          BUNDLE_GEMFILE: ${{ github.workspace }}/Gemfile
 
       - name: Setup databases
-        env:
-          RAILS_ENV: test
-          DATABASE_URL_PG: postgres://postgres:postgres@127.0.0.1:5432/closure_tree_test
-          DATABASE_URL_MYSQL: mysql2://root:root@127.0.0.1:3306/closure_tree_test
-          DATABASE_URL_SQLITE3: 'sqlite3::memory:'
         run: |
           cd test/dummy
           bundle exec rails db:setup_all
 
       - name: Run tests
-        env:
-          RAILS_ENV: test
-          DATABASE_URL_PG: postgres://postgres:postgres@127.0.0.1:5432/closure_tree_test
-          DATABASE_URL_MYSQL: mysql2://root:root@127.0.0.1:3306/closure_tree_test
-          DATABASE_URL_SQLITE3: 'sqlite3::memory:'
-          WITH_ADVISORY_LOCK_PREFIX: ${{ github.run_id }}
         run: |
-          bundle exec rake test
+          bundle exec rake test

lib/closure_tree/arel_helpers.rb

@@ -84,7 +84,7 @@ def build_hierarchy_delete_query(hierarchy_table, id)
     # This ensures proper quoting for the specific database adapter (MySQL uses backticks, PostgreSQL uses double quotes)
     def to_sql_with_connection(arel_manager)
       collector = Arel::Collectors::SQLString.new
-      visitor = connection.send(:arel_visitor)
+      visitor = connection.visitor
       visitor.accept(arel_manager.ast, collector).value
     end
   end

lib/closure_tree/hierarchy_maintenance.rb

@@ -52,14 +52,14 @@ def _ct_after_save
 
     def _ct_before_destroy
       _ct.with_advisory_lock do
-        adopt_children_to_grandparent if _ct.options[:dependent] == :adopt
+        _ct_adopt_children_to_grandparent if _ct.options[:dependent] == :adopt
         delete_hierarchy_references
         self.class.find(id).children.find_each(&:rebuild!) if _ct.options[:dependent] == :nullify
       end
       true # don't prevent destruction
     end
 
-    def adopt_children_to_grandparent
+    private def _ct_adopt_children_to_grandparent
       grandparent_id = read_attribute(_ct.parent_column_name)
       children_ids = self.class.where(_ct.parent_column_name => id).pluck(:id)
 

test/closure_tree/adopt_test.rb

@@ -60,8 +60,6 @@ def run_adopt_tests_for(model_class)
       assert_equal p2, p3.parent
 
       hierarchy = model_class.hierarchy_class
-      hierarchy.where(ancestor_id: p2.id).count
-      hierarchy.where(descendant_id: p3.id).count
 
       # Destroy p1 (root node)
       p1.destroy
@@ -210,7 +208,6 @@ def run_adopt_tests_for(model_class)
       leaf = model_class.create!(name: 'leaf', parent: p2)
 
       hierarchy = model_class.hierarchy_class
-      hierarchy.count
 
       # Destroy leaf (has no children)
       leaf.destroy