DEV: Upgrade to Rails 7

This patch upgrades Rails to version 7.0.2.4.

lib/freedom_patches/active_record_postgresql_adapter.rb

@@ -1,19 +0,0 @@
-# frozen_string_literal: true
-
-# Pulls in https://github.com/rails/rails/pull/42368 early since the query is
-# definitely more efficient as it does not involved the PG planner.
-# Remove once Rails 7 has been released.
-module ActiveRecord
-  module ConnectionAdapters
-    class PostgreSQLAdapter
-      def active?
-        @lock.synchronize do
-          @connection.query ";"
-        end
-        true
-      rescue PG::Error
-        false
-      end
-    end
-  end
-end

lib/freedom_patches/ar_references_fix.rb

@@ -0,0 +1,50 @@
+# frozen_string_literal: true
+
+# This patch is a backport of https://github.com/rails/rails/pull/42350
+# It fixes a bug introduced by Rails which affects reference columns marking
+# them as integer instead of bigint.
+#
+# This should be deleted when version 7.0.3 is released.
+module FreedomPatches
+  module ArReferencesFix
+    module SchemaDefinition
+      def index_options(table_name)
+        index_options = as_options(index)
+
+        # legacy reference index names are used on versions 6.0 and earlier
+        return index_options if options[:_uses_legacy_reference_index_name]
+
+        index_options[:name] ||= polymorphic_index_name(table_name) if polymorphic
+        index_options
+      end
+
+      ActiveRecord::ConnectionAdapters::ReferenceDefinition.prepend(self)
+    end
+  end
+end
+
+class ActiveRecord::Migration::Compatibility::V6_0
+  module TableDefinition
+    def references(*args, **options)
+      options[:_uses_legacy_reference_index_name] = true
+      super
+    end
+    alias :belongs_to :references
+  end
+
+  def add_reference(table_name, ref_name, **options)
+    if connection.adapter_name == "SQLite"
+      options[:type] = :integer
+    end
+    options[:_uses_legacy_reference_index_name] = true
+    super
+  end
+  alias :add_belongs_to :add_reference
+
+  def compatible_table_definition(t)
+    class << t
+      prepend TableDefinition
+    end
+    super
+  end
+end

lib/freedom_patches/rails_multisite.rb

@@ -10,7 +10,7 @@ module RailsMultisite
           break if !defined?(RailsFailover::ActiveRecord)
           break if db == RailsMultisite::ConnectionManagement::DEFAULT
 
-          reading_role = :"#{db}_#{ActiveRecord::Base.reading_role}"
+          reading_role = :"#{db}_#{ActiveRecord.reading_role}"
           spec = RailsMultisite::ConnectionManagement.connection_spec(db: db)
 
           ActiveRecord::Base.connection_handlers[reading_role] ||= begin