Lease the connection

See rails/rails#51230

Author: aidanharan

lib/active_record/connection_adapters/sqlserver/core_ext/attribute_methods.rb

@@ -10,7 +10,7 @@ module AttributeMethods
           private
 
           def attributes_for_update(attribute_names)
-            return super unless self.class.connection.adapter_name == "SQLServer"
+            return super unless self.class.lease_connection.adapter_name == "SQLServer"
 
             super.reject do |name|
               column = self.class.columns_hash[name]

lib/active_record/connection_adapters/sqlserver/core_ext/calculations.rb

@@ -9,7 +9,7 @@ module SQLServer
       module CoreExt
         module Calculations
           def calculate(operation, column_name)
-            if klass.connection.sqlserver?
+            if klass.lease_connection.sqlserver?
               _calculate(operation, column_name)
             else
               super
@@ -54,7 +54,7 @@ def _calculate(operation, column_name)
           end
 
           def build_count_subquery(relation, column_name, distinct)
-            return super unless klass.connection.adapter_name == "SQLServer"
+            return super unless klass.lease_connection.adapter_name == "SQLServer"
 
             super(relation.unscope(:order), column_name, distinct)
           end

lib/active_record/connection_adapters/sqlserver/core_ext/explain.rb

@@ -9,7 +9,7 @@ module Explain
           SQLSERVER_STATEMENT_REGEXP = /N'(.+)', N'(.+)', (.+)/
 
           def exec_explain(queries, options = [])
-            return super unless connection.adapter_name == "SQLServer"
+            return super unless lease_connection.adapter_name == "SQLServer"
 
             unprepared_queries = queries.map do |(sql, binds)|
               [unprepare_sqlserver_statement(sql, binds), binds]

lib/active_record/connection_adapters/sqlserver/core_ext/finder_methods.rb

@@ -11,7 +11,7 @@ module FinderMethods
           private
 
           def construct_relation_for_exists(conditions)
-            if klass.connection.sqlserver?
+            if klass.lease_connection.sqlserver?
               _construct_relation_for_exists(conditions)
             else
               super