diff --git a/lib/octopus/association_shard_tracking.rb b/lib/octopus/association_shard_tracking.rb
index 36d4622f..dfb2f151 100644
--- a/lib/octopus/association_shard_tracking.rb
+++ b/lib/octopus/association_shard_tracking.rb
@@ -35,13 +35,48 @@ def connection_on_association=(record)
       end
     end
 
-    def has_many(name, scope = nil, **options, &extension)
-      if options == {} && scope.is_a?(Hash)
-        default_octopus_opts(scope)
+
+    # def has_many(name, scope = nil, **options, &extension)
+    #   puts "has_many called with: name=#{name.inspect}, scope=#{scope.inspect}, options=#{options.inspect}"
+    #   if options == {} && scope.is_a?(Hash)
+    #     default_octopus_opts(scope)
+    #   else
+    #     default_octopus_opts(options)
+    #   end
+    #   # Ensure compatibility with Rails' expected argument count
+    #   if scope.nil? || scope.is_a?(Hash)
+    #     super(name, **options, &extension)
+    #   elsif scope.is_a?(Proc)
+    #     if extension
+    #       super(name, scope, **options, &extension)
+    #     else
+    #       p "bpk2"
+    #       # super(name, **options, &scope)
+    #       super(name, scope, **options, &extension)
+    #       # super(name, scope, **options, &extension)
+    #       # super(name, **options, &scope.to_proc)
+    #       # super(name, **options) { scope.call }
+    #       # super(name, scope, **options)
+    #     end
+    #   else
+    #     super(name, scope, **options, &extension)
+    #   end
+    # end
+
+
+    def has_many(name, *args, &extension)
+      # Extract scope and options carefully
+      scope = args[0].is_a?(Proc) ? args.shift : nil
+      options = args.last.is_a?(Hash) ? args.pop : {}
+
+      # puts "has_many called with: name=#{name.inspect}, scope=#{scope.inspect}, options=#{options.inspect}"
+
+      # Pass correct arguments to ActiveRecord's has_many
+      if scope
+        super(name, scope, **options, &extension)
       else
-        default_octopus_opts(options)
+        super(name, **options, &extension)
       end
-      super
     end
 
     def has_and_belongs_to_many(association_id, scope = nil, options = {}, &extension)
diff --git a/lib/octopus/collection_association.rb b/lib/octopus/collection_association.rb
index 6713271a..a1b44c3d 100644
--- a/lib/octopus/collection_association.rb
+++ b/lib/octopus/collection_association.rb
@@ -1,7 +1,7 @@
 module Octopus
   module CollectionAssociation
     def self.included(base)
-      if Octopus.rails51? || Octopus.rails52?
+      if Octopus.atleast_rails51?
         base.sharded_methods :reader, :writer, :ids_reader, :ids_writer, :create, :create!,
                              :build, :include?,
                              :load_target, :reload, :size, :select
@@ -14,4 +14,4 @@ def self.included(base)
   end
 end
 
-ActiveRecord::Associations::CollectionAssociation.send(:include, Octopus::CollectionAssociation)
+ActiveRecord::Associations::CollectionAssociation.send(:include, Octopus::CollectionAssociation)
\ No newline at end of file
diff --git a/lib/octopus/proxy_config.rb b/lib/octopus/proxy_config.rb
index 93a2e5bc..2cc5eb4d 100644
--- a/lib/octopus/proxy_config.rb
+++ b/lib/octopus/proxy_config.rb
@@ -138,7 +138,8 @@ def initialize_shards(config)
       self.shards_slave_groups = HashWithIndifferentAccess.new
       self.slave_groups = HashWithIndifferentAccess.new
       self.groups = {}
-      self.config = ActiveRecord::Base.connection_pool_without_octopus.spec.config
+      # self.config = ActiveRecord::Base.connection_pool_without_octopus.spec.config
+      self.config = ActiveRecord::Base.connection_pool_without_octopus.db_config.configuration_hash
 
       unless config.nil?
         self.entire_sharded = config['entire_sharded']
@@ -216,15 +217,22 @@ def reinitialize_shards
 
     private
 
-    def connection_pool_for(config, adapter)
-      if Octopus.rails4?
-        spec = ActiveRecord::ConnectionAdapters::ConnectionSpecification.new(config.dup, adapter )
-      else
-        name = adapter["octopus_shard"]
-        spec = ActiveRecord::ConnectionAdapters::ConnectionSpecification.new(name, config.dup, adapter)
-      end
+    # def connection_pool_for(config, adapter)
+    #   if Octopus.rails4?
+    #     spec = ActiveRecord::ConnectionAdapters::ConnectionSpecification.new(config.dup, adapter )
+    #   else
+    #     name = adapter["octopus_shard"]
+    #     spec = ActiveRecord::ConnectionAdapters::ConnectionSpecification.new(name, config.dup, adapter)
+    #   end
+    #
+    #   ActiveRecord::ConnectionAdapters::ConnectionPool.new(spec)
+    # end
 
-      ActiveRecord::ConnectionAdapters::ConnectionPool.new(spec)
+    def connection_pool_for(config, adapter)
+      # resolver = ActiveRecord::ConnectionAdapters::ConnectionSpecification::Resolver.new(config)
+      # spec = resolver.spec(config)
+      # ActiveRecord::Base.connection_handler.establish_connection(spec)
+      ActiveRecord::Base.establish_connection(config)
     end
 
     def resolve_string_connection(spec)