```ruby
require 'savon' 

module DataMapper
  module Adapters
    module Soap
      
      class Connection
        
        WSDL_FILE_NAME = 'wsdl.xml'
        DEFAULT_WSDL_PATH = File.join('lib','dm-soap-adapter',WSDL_FILE_NAME)
        
        def initialize(options)
          @wsdl_path = options.fetch(:path, DEFAULT_WSDL_PATH)
          @savon_options = {wsdl: @wsdl_path}
          if options[:logging_level] && options[:logging_level].downcase == 'debug'
            @savon_options[:log_level] = :debug
            @savon_options[:pretty_print_xml] = true            
          end
          @client = Savon::Client.new(@savon_options)
          @options = options
        end
        
        def client
          @client
        end
        
        def call_create(create_method, objects)
          call_service(create_method, message: objects)
        end

        def call_update(update_method, objects)
          call_service(update_method , message: objects)
        end

        def call_delete(delete_method, keys)
          call_service(delete_method, message: keys)
        end
    
        def call_get(read_method, id)
          call_service(read_method, message: id)
        end
    
        def call_query(query_method, query)
          call_service(query_method, message: query)
        end
        
        private
        
        def call_service(operation, objects)
          DataMapper.logger.debug( "Calling #{operation.to_sym} with #{objects.inspect}")
          response = client.call(operation.to_sym, objects)
        end
        
      end 
    end
  end
end```

Switch to use absolute path for wsdl instead.
user
```ruby
require 'savon' 

module DataMapper
  module Adapters
    module Soap
      
      class Connection
        
        WSDL_FILE_NAME = 'wsdl.xml'
        DEFAULT_WSDL_PATH = File.join(File.expand_path(File.dirname(__FILE__)),WSDL_FILE_NAME)
        
        def initialize(options)
          @wsdl_path = options.fetch(:path, DEFAULT_WSDL_PATH)
          @savon_options = {wsdl: @wsdl_path}
          if options[:logging_level] && options[:logging_level].downcase == 'debug'
            @savon_options[:log_level] = :debug
            @savon_options[:pretty_print_xml] = true            
          end
          @client = Savon::Client.new(@savon_options)
          @options = options
        end
        
        def client
          @client
        end
        
        def call_create(create_method, objects)
          call_service(create_method, message: objects)
        end

        def call_update(update_method, objects)
          call_service(update_method , message: objects)
        end

        def call_delete(delete_method, keys)
          call_service(delete_method, message: keys)
        end
    
        def call_get(read_method, id)
          call_service(read_method, message: id)
        end
    
        def call_query(query_method, query)
          call_service(query_method, message: query)
        end
        
        private
        
        def call_service(operation, objects)
          DataMapper.logger.debug( "Calling #{operation.to_sym} with #{objects.inspect}")
          response = client.call(operation.to_sym, objects)
        end
        
      end 
    end
  end
end```
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