How to use column_names method of ClassMethods Package

Best Active_mocker_ruby code snippet using ClassMethods.column_names

orm_mapper.rb

Source:orm_mapper.rb

...14  end15  module ClassMethods16    def establish_connection(opts = {})17      connection = _init_connection(opts)18      _init_column_names19      define_method 'attribute_names' do20        self.class.attribute_names21      end22      define_method 'attributes' do23        instance_values.select { |key| key.in?(attribute_names) }24      end25      define_method 'empty?' do26        attributes.blank?27      end28      connection29    end30    def connection31      class_variable_get :@@connection32    end33    def attribute_names34      class_variable_get :@@column_names35    end36    private37    def _init_connection(opts)38      # self.superclass --> ActiveRecord::Base39      if self.superclass.class_variables.include?(:@@connection)40        connection = self.superclass.class_variable_get :@@connection41        puts "Debug DB connected"42      else43        connection = self.superclass.class_variable_set(:@@connection, ::SQLite3::Database.new(opts[:database]))44        puts "Debug new connection: #{connection.inspect}"45      end46      connection47    end48    def _init_column_names49      # set column_names50      sql_query = "PRAGMA table_info(#{self.to_s.underscore.pluralize})"51      puts "Debug SQL table_info: `#{sql_query}`"52      column_names = connection.execute(sql_query).map { |array| array[1] }53      class_variable_set(:@@column_names, column_names)54      puts "Debug #{self.to_s} column_names: #{column_names}"55    end56  end57end

csv_model.rb

Source:csv_model.rb

...6  def merge! model7    fill!(model.to_s.split("@"))8  end9  def fill! row10    self.class.column_names.each_with_index do |name, index|11      public_send "#{name}=", row[index]12    end13  end14  def to_s15    self.class.column_names.collect {|name| public_send name }.join "@"16  end17  module ClassMethods18    def csv_model options={}19      column_names = options.fetch(:column_names)20      define_singleton_method :column_names do21        column_names22      end23      define_singleton_method :delta_file_name do24        options.fetch(:delta_file_name)25      end26      define_singleton_method :log_file_name do27        options.fetch(:log_file_name)28      end29      define_method :operation do30        public_send options.fetch(:operation_attribute)31      end32    end33    def parse file_name34	models = []35	begin...

struct_pluck.rb

Source:struct_pluck.rb

...7  def self.included(base)8    base.extend(ClassMethods)9  end10  module ClassMethods11    def struct_pluck(column_names)12      result = pluck(*column_names)13      fakerecord = Struct.new(*column_names)14      result.map do |r|15        fail UnsupportedDatatype if r.size != column_names.size16        fakerecord.new(*r)17      end18    end19  end20end21ActiveRecord::Base.send(:include, StructPluck)...

column_names

Using AI Code Generation

1    %w(name address phone)2    %w(name address phone)3Traceback (most recent call last):42.rb:6:in `column_names': undefined method `column_names' for Student:Class (NoMethodError)5Traceback (most recent call last):62.rb:6:in `column_names': undefined method `column_names' for Student:Class (NoMethodError)7Traceback (most recent call last):82.rb:6:in `column_names': undefined method `column_names' for Student:Class (NoMethodError)9Traceback (most recent call last):102.rb:6:in `column_names': undefined method `column_names' for Student:Class (NoMethodError)11Traceback (most recent call last):122.rb:6:in `column_names': undefined method `column_names' for Student:Class (NoMethodError)13Traceback (most recent call last):142.rb:6:in `column_names': undefined method `column_names' for Student:Class (NoMethodError)

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.