From 706249677fa3d84e44ce32bf58ae514ece7a1a5d Mon Sep 17 00:00:00 2001
From: Aidan Haran <aidanharan@yahoo.com>
Date: Thu, 18 Apr 2024 18:30:32 +0100
Subject: [PATCH] Don't require an active connection for table and column
 quoting

See https://github.com/rails/rails/pull/51174
---
 .../sqlserver/database_statements.rb          |  8 +-
 .../connection_adapters/sqlserver/quoting.rb  | 90 +++++++++----------
 2 files changed, 48 insertions(+), 50 deletions(-)

diff --git a/lib/active_record/connection_adapters/sqlserver/database_statements.rb b/lib/active_record/connection_adapters/sqlserver/database_statements.rb
index f7abe9e2d..0b6f95ec2 100644
--- a/lib/active_record/connection_adapters/sqlserver/database_statements.rb
+++ b/lib/active_record/connection_adapters/sqlserver/database_statements.rb
@@ -153,10 +153,10 @@ def build_insert_sql(insert) # :nodoc:
 
           if returning = insert.send(:insert_all).returning
             returning_sql = if returning.is_a?(String)
-              returning
-            else
-              returning.map { |column| "INSERTED.#{quote_column_name(column)}" }.join(", ")
-            end
+                              returning
+                            else
+                              returning.map { |column| "INSERTED.#{quote_column_name(column)}" }.join(", ")
+                            end
             sql << " OUTPUT #{returning_sql}"
           end
 
diff --git a/lib/active_record/connection_adapters/sqlserver/quoting.rb b/lib/active_record/connection_adapters/sqlserver/quoting.rb
index 54f65ca54..3fe889bd5 100644
--- a/lib/active_record/connection_adapters/sqlserver/quoting.rb
+++ b/lib/active_record/connection_adapters/sqlserver/quoting.rb
@@ -4,9 +4,53 @@ module ActiveRecord
   module ConnectionAdapters
     module SQLServer
       module Quoting
+        extend ActiveSupport::Concern
+
         QUOTED_COLUMN_NAMES = Concurrent::Map.new # :nodoc:
         QUOTED_TABLE_NAMES = Concurrent::Map.new # :nodoc:
 
+        module ClassMethods
+          def column_name_matcher
+            /
+              \A
+              (
+                (?:
+                  # [database_name].[database_owner].[table_name].[column_name] | function(one or no argument)
+                  ((?:\w+\.|\[\w+\]\.)?(?:\w+\.|\[\w+\]\.)?(?:\w+\.|\[\w+\]\.)?(?:\w+|\[\w+\]) | \w+\((?:|\g<2>)\))
+                )
+                (?:\s+AS\s+(?:\w+|\[\w+\]))?
+              )
+              (?:\s*,\s*\g<1>)*
+              \z
+            /ix
+          end
+
+          def column_name_with_order_matcher
+            /
+              \A
+              (
+                (?:
+                  # [database_name].[database_owner].[table_name].[column_name] | function(one or no argument)
+                  ((?:\w+\.|\[\w+\]\.)?(?:\w+\.|\[\w+\]\.)?(?:\w+\.|\[\w+\]\.)?(?:\w+|\[\w+\]) | \w+\((?:|\g<2>)\))
+                )
+                (?:\s+COLLATE\s+\w+)?
+                (?:\s+ASC|\s+DESC)?
+                (?:\s+NULLS\s+(?:FIRST|LAST))?
+              )
+              (?:\s*,\s*\g<1>)*
+              \z
+            /ix
+          end
+
+          def quote_column_name(name)
+            QUOTED_COLUMN_NAMES[name] ||= SQLServer::Utils.extract_identifiers(name).quoted
+          end
+
+          def quote_table_name(name)
+            QUOTED_TABLE_NAMES[name] ||= SQLServer::Utils.extract_identifiers(name).quoted
+          end
+        end
+
         def fetch_type_metadata(sql_type, sqlserver_options = {})
           cast_type = lookup_cast_type(sql_type)
 
@@ -33,14 +77,6 @@ def quote_string_single_national(s)
           SQLServer::Utils.quote_string_single_national(s)
         end
 
-        def quote_column_name(name)
-          QUOTED_COLUMN_NAMES[name] ||= SQLServer::Utils.extract_identifiers(name).quoted
-        end
-
-        def quote_table_name(name)
-          QUOTED_TABLE_NAMES[name] ||= SQLServer::Utils.extract_identifiers(name).quoted
-        end
-
         def quote_default_expression(value, column)
           cast_type = lookup_cast_type(column.sql_type)
           if cast_type.type == :uuid && value.is_a?(String) && value.include?('()')
@@ -76,44 +112,6 @@ def quoted_date(value)
           end
         end
 
-        def column_name_matcher
-          COLUMN_NAME
-        end
-
-        def column_name_with_order_matcher
-          COLUMN_NAME_WITH_ORDER
-        end
-
-        COLUMN_NAME = /
-          \A
-          (
-            (?:
-              # [database_name].[database_owner].[table_name].[column_name] | function(one or no argument)
-              ((?:\w+\.|\[\w+\]\.)?(?:\w+\.|\[\w+\]\.)?(?:\w+\.|\[\w+\]\.)?(?:\w+|\[\w+\]) | \w+\((?:|\g<2>)\))
-            )
-            (?:\s+AS\s+(?:\w+|\[\w+\]))?
-          )
-          (?:\s*,\s*\g<1>)*
-          \z
-        /ix
-
-        COLUMN_NAME_WITH_ORDER = /
-          \A
-          (
-            (?:
-              # [database_name].[database_owner].[table_name].[column_name] | function(one or no argument)
-              ((?:\w+\.|\[\w+\]\.)?(?:\w+\.|\[\w+\]\.)?(?:\w+\.|\[\w+\]\.)?(?:\w+|\[\w+\]) | \w+\((?:|\g<2>)\))
-            )
-            (?:\s+COLLATE\s+\w+)?
-            (?:\s+ASC|\s+DESC)?
-            (?:\s+NULLS\s+(?:FIRST|LAST))?
-          )
-          (?:\s*,\s*\g<1>)*
-          \z
-        /ix
-
-        private_constant :COLUMN_NAME, :COLUMN_NAME_WITH_ORDER
-
         def quote(value)
           case value
           when Type::Binary::Data