Class: Mdwa::Generators::TransformGenerator

Inherits:
Rails::Generators::Base
  • Object
show all
Includes:
Rails::Generators::Migration
Defined in:
lib/generators/mdwa/transform/transform_generator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args, &block) ⇒ TransformGenerator

Returns a new instance of TransformGenerator.



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# File 'lib/generators/mdwa/transform/transform_generator.rb', line 24

def initialize(*args, &block)
  super
  
  # control if there are any migrations to execute
  @pending_migrations = false
  
  # include files with entities
  inside Rails.root do
    require_all MDWA::DSL::STRUCTURAL_PATH unless Dir.glob("#{MDWA::DSL::STRUCTURAL_PATH}/*.rb").count.zero?
  end
  # select entities that will be generated
  if entities.count.zero?
    @entities = MDWA::DSL.entities.all 
  else
    @entities = entities.collect{ |e| MDWA::DSL.entity(e) }
  end
  
  # entity changes and migrations
  @changes = []
  @random_migration_key = rand.to_s.gsub('.','').to_i
  
  run 'rake db:migrate'
end

Instance Attribute Details

#pending_migrations ⇒ Object

Returns the value of attribute pending_migrations.



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# File 'lib/generators/mdwa/transform/transform_generator.rb', line 17

def pending_migrations
  @pending_migrations
end

Instance Method Details

#create_menu_item ⇒ Object

def



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# File 'lib/generators/mdwa/transform/transform_generator.rb', line 82

def create_menu_item
  @entities.each do |entity|
    generator_model = entity.generator_model
    insert_into_file 'app/views/template/mdwa/_menubar.html.erb', before: '</ul>' do
      "  <%= render '/template/mdwa/menubar/#{generator_model.plural_name}' %>\n"
    end
  end
end

#generate_changes_in_attributes ⇒ Object 



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# File 'lib/generators/mdwa/transform/transform_generator.rb', line 259

def generate_changes_in_attributes
  
  @entities.each do |entity|
    # do not generate migrations for users changes
    next if entity.user?
    # if it's not a resource, ignore
    next unless entity.resource?
    
    # if model does not exist, should generate scaffold
    begin
      model_class = entity.generator_model.model_class
    rescue
      model_class = nil
    end
    
    # if table is not created yet, ignore
    next if model_class.nil? or !model_class.table_exists?
    
    # search for changes in this entity
    model_class.columns.each do |column|
      
      # ignore rails default columns and attributes used in associations
      next if column.name.end_with? '_id'
                  
      entity_attribute = entity.attributes[column.name]
      # model attribute exists, but not in entity -> was erased
      if entity_attribute.nil?
        # atributo não é derivado de file, pode apagar na moral
        if !column.name.ends_with?("_file_name") and !column.name.ends_with?("_content_type") and !column.name.ends_with?("_file_size") and !column.name.ends_with?("_updated_at") 
          @changes << {:entity => entity, :type => 'remove_column', :column => column.name, :attr_type => column.type}
        else
          # se o atributo é derivado de file e não existe o file na entidade, apaga
          @changes << {:entity => entity, :type => 'remove_column', :column => column.name, :attr_type => column.type} if column.name.ends_with?("_file_name") and entity.attributes[column.name.gsub("_file_name", '')].nil?
          @changes << {:entity => entity, :type => 'remove_column', :column => column.name, :attr_type => column.type} if column.name.ends_with?("_content_type") and entity.attributes[column.name.gsub("_content_type", '')].nil?
          @changes << {:entity => entity, :type => 'remove_column', :column => column.name, :attr_type => column.type} if column.name.ends_with?("_file_size") and entity.attributes[column.name.gsub("_file_size", '')].nil?
          @changes << {:entity => entity, :type => 'remove_column', :column => column.name, :attr_type => column.type} if column.name.ends_with?("_updated_at") and entity.attributes[column.name.gsub("_updated_at", '')].nil?
        end
      # attribute exists in model and entity, but changed type
      elsif entity_attribute.type.to_sym != column.type.to_sym
        # ignores files, passwords and float, decimal, integer variations
        next if entity_attribute.type.to_sym == :password or (entity_attribute.type.to_sym == :status and column.type.to_sym == :integer) or ((column.type.to_sym == :integer or column.type.to_sym == :decimal) and entity_attribute.type.to_sym == :float)
        @changes << {:entity => entity, :type => 'change_column', :column => column.name, :attr_type => entity_attribute.type, :from => column.type}
      end
    end
    
    # new attributes
    # no column with that name -> column must be added
    entity.attributes.each do |key, attr|
      # se o atributo for file e não existir seus atributos no banco de dados, corrige
      if attr.type.to_sym == :file
        @changes << {:entity => entity, :type => 'add_column', :column => "#{attr.name}_file_name", :attr_type => 'string'} if model_class.columns.select{|c| c.name == "#{attr.name}_file_name"}.count.zero?
        @changes << {:entity => entity, :type => 'add_column', :column => "#{attr.name}_content_type", :attr_type => 'string'} if model_class.columns.select{|c| c.name == "#{attr.name}_content_type"}.count.zero?
        @changes << {:entity => entity, :type => 'add_column', :column => "#{attr.name}_file_size", :attr_type => 'integer'} if model_class.columns.select{|c| c.name == "#{attr.name}_file_size"}.count.zero?
        @changes << {:entity => entity, :type => 'add_column', :column => "#{attr.name}_updated_at", :attr_type => 'datetime'} if model_class.columns.select{|c| c.name == "#{attr.name}_updated_at"}.count.zero?
      
      # nenhuma coluna com esse nome
      elsif model_class.columns.select {|c| c.name == attr.name }.count.zero?
        @changes << {:entity => entity, :type => 'add_column', :column => attr.name, :attr_type => attr.type}
      end
    end
    
    # new foreign keys
    # belongs_to and nested_one associations that are in the entity, but not database
    entity.generator_model.associations.select{|a| a.belongs_to? or a.nested_one?}.each do |assoc|
      if model_class.columns.select{|c| c.name == assoc.model2.singular_name.foreign_key}.count.zero?
        @changes << {:entity => entity, :type => 'add_column', :column => assoc.model2.name.foreign_key, :attr_type => 'integer'}
      end
    end
    
  end # @entities loop
  
  # generate changed code
  unless @changes.empty?
    migration_template 'changes_migration.rb', "db/migrate/alter_#{@changes.collect{|c| c[:entity].file_name}.join('_')}#{@random_migration_key}.rb"
    @pending_migrations = true
  end
  
end

#generate_locales ⇒ Object 



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# File 'lib/generators/mdwa/transform/transform_generator.rb', line 140

def generate_locales

  return nil if options.skip_locales

  locales_file = 'config/locales/mdwa.specific.en.yml'
  # make sure the file exist
  create_file locales_file unless File.exist?(Rails.root + locales_file)
  locales_content = File.read(locales_file)

  # translated
  if I18n.locale.to_sym != :en
    locales_translated_file = "config/locales/mdwa.specific.#{I18n.locale}.yml"
    create_file locales_translated_file unless File.exist?(Rails.root + locales_translated_file)
    locales_translated_content = File.read(locales_translated_file)
  end
  
  @entities.each do |entity|
    model = entity.generator_model

    lines = []
    lines << "\n"
    lines <<  "  #{model.plural_name}:"
    lines <<  "    notice:"
    lines <<  "      create: \"#{model.singular_name.humanize} created.\""
    lines <<  "      update: \"#{model.singular_name.humanize} updated.\""
    lines <<  "      destroy: \"#{model.singular_name.humanize} destroyed.\""
    lines <<  "      batch_update: \"#{model.singular_name.humanize} updated.\""
    lines <<  "    title:"
    lines <<  "      index: \"#{model.plural_name.humanize}\""
    lines <<  "      show: \"#{model.singular_name.humanize}\""
    lines <<  "      new: \"New #{model.singular_name.humanize}\""
    lines <<  "      edit: \"Edit #{model.singular_name.humanize}\""
    lines <<  "    menu:"
    lines <<  "      index: \"#{model.plural_name.humanize}\""
    lines <<  "      new: \"New #{model.singular_name.humanize}\""
    # Status
    if entity.attributes.select{|name, attr| attr.type.to_sym == :status}.count > 0
      entity.attributes.select{|name, attr| attr.type.to_sym == :status}.each do |name, attr|
        lines <<  "    #{name}:"
        lines <<  "      prompt_select: '- Status -'"
        attr.options[:possible_values].each_with_index do |value, index|
          lines <<  "      #{value.to_s.underscore}: '#{value.to_s.humanize}'"
          lines <<  "      #{value.to_s.underscore}_alter: 'Change #{name} to #{value.to_s.humanize}'"
        end
      end
    end 
    # INDEX
    lines <<  "    index:"
    lines <<  "      add: 'Add'"
    lines <<  "      edit: 'Edit'"
    lines <<  "      edit_label: 'Edit'"
    lines <<  "      remove: 'Remove'"
    lines <<  "      remove_label: 'Remove'"
    lines <<  "      confirm_deletion: 'Are you sure?'"
    model.attributes.each do |attr|
      lines <<  "      #{attr.name}: \"#{attr.name.humanize}\""
    end
    model.associations.each do |assoc|
      lines << ((assoc.belongs_to? or assoc.nested_one? or assoc.has_one?) ? "      #{assoc.model2.singular_name}: \"#{assoc.model2.singular_name.humanize}\"" : "      #{assoc.model2.singular_name}: \"#{assoc.model2.plural_name.humanize}\"")
    end
    # EDIT
    lines <<  "    edit:"
    model.attributes.each do |attr|
      lines <<  "      #{attr.name}: \"#{attr.name.humanize}\""
    end
    model.associations.each do |assoc|
      lines << ((assoc.belongs_to? or assoc.nested_one? or assoc.has_one?) ? "      #{assoc.model2.singular_name}: \"#{assoc.model2.singular_name.humanize}\"" : "      #{assoc.model2.singular_name}: \"#{assoc.model2.plural_name.humanize}\"")
    end
    # SHOW
    lines <<  "    show:"
    model.attributes.each do |attr|
      lines <<  "      #{attr.name}: \"#{attr.name.humanize}\""
    end
    model.associations.each do |assoc|
      lines << ((assoc.belongs_to? or assoc.nested_one? or assoc.has_one?) ? "      #{assoc.model2.singular_name}: \"#{assoc.model2.singular_name.humanize}\"" : "      #{assoc.model2.singular_name}: \"#{assoc.model2.plural_name.humanize}\"")
    end
    lines << "\n"

    if !locales_content.include?( "  #{model.plural_name}:" )
      append_file locales_file, lines.join("\n"), :after => "en:"
    end

    if I18n.locale.to_sym != :en and !locales_translated_content.include?( "  #{model.plural_name}:" )
      append_file locales_translated_file, lines.join("\n"), :after => "#{I18n.locale}:"
    end
    
  end # @entities loop

end

#generate_migrations ⇒ Object 



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# File 'lib/generators/mdwa/transform/transform_generator.rb', line 230

def generate_migrations
  
  @entities.each do |entity|
    # if it's not a resource, ignore
    next unless entity.resource?
  
    # if model does not exist, should generate scaffold
    begin
      model_class = entity.generator_model.model_class
    rescue
      model_class = nil
    end
    
    # if is a new scaffold, generate migration for scaffold
    if (model_class.nil? or !model_class.table_exists?) and !entity.user?
      migration_for_entity(entity) 
      next
    end
    
    # generate new fields for users
    if entity.user?
      generation_string = "#{entity.generate} --only_diff_migration --skip_rake_migrate --skip-questions #{'--force' if options.force}"
      generate generation_string
    end
    
  end # @entities loop
end

#generate_model_controller_helper_views ⇒ Object 



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# File 'lib/generators/mdwa/transform/transform_generator.rb', line 48

def generate_model_controller_helper_views
  @entities.each do |entity|
    generator_model = entity.generator_model

    #
    # Para cada namespace, gera seu código  
    #
    # Pasta onde o código gerado vai ser colocado
    # Namespace 'frontend' é o público e gera código nas raízes do Rails        
    namespaces = Dir.glob("#{Rails.root}/#{MDWA::DSL::TEMPLATES_PATH}#{entity.file_name}/*").select{|d| File.directory?(d)}.collect {|n| File.basename(n)}
    if !namespaces.count.zero?
      namespaces.each do |namespace|

        namespace_destino = (namespace != 'frontend') ? namespace : ''
        templates_deste_namespace = MDWA::DSL::TEMPLATES_PATH + entity.file_name + '/' + namespace + '/'

        # Gera model, controllers e helper
        mdwa_template "#{entity.file_name}/#{namespace}/model.erb", "app/models/#{namespace_destino}/#{generator_model.singular_name}.rb" if File.exists?(templates_deste_namespace + 'model.erb')
        mdwa_template "#{entity.file_name}/#{namespace}/helper.erb", "app/helpers/#{namespace_destino}/#{generator_model.plural_name}_helper.rb"  if File.exists?(templates_deste_namespace + 'helper.erb')
        mdwa_template "#{entity.file_name}/#{namespace}/controller.erb", "app/controllers/#{namespace_destino}/#{generator_model.plural_name}_controller.rb"  if File.exists?(templates_deste_namespace + 'controller.erb')
        
        # Gera as views
        Dir.glob("#{templates_deste_namespace}/views/*").select{|d| !File.directory?(d)}.each do |file|
          file_name = File.basename(file)
          mdwa_template "#{entity.file_name}/#{namespace}/views/#{file_name}", "app/views/#{namespace_destino}/#{generator_model.plural_name}/#{file_name}"
        end
        # Item de menu
        mdwa_template "#{entity.file_name}/#{namespace}/views/menu/menu.html.erb", "app/views/template/mdwa/menubar/_#{generator_model.plural_name}.html.erb"

      end # nm.each
    end # if nm == 0
  end # each
end

#generate_routes ⇒ Object 



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# File 'lib/generators/mdwa/transform/transform_generator.rb', line 91

def generate_routes
  
  route 'mdwa_router(self)'
  path_to_routes = 'app/mdwa/templates/routes.rb'
  insert_into_file 'config/routes.rb', "load File.expand_path('../../#{path_to_routes}', __FILE__)\n\n", :before => /.+::Application\.routes\.draw do(?:\s*\|map\|)?\s*$/
  
  # clear routes file contents
  File.truncate(path_to_routes, 0)
  append_file path_to_routes, "def mdwa_router(router)\n\nend"

  inject_into_file path_to_routes, :after => "def mdwa_router(router)\n" do
  "\n# Software visualization
    namespace :mdwa do
controller :requirements do
  get 'requirements/index' => 'requirements#index', :as => 'requirements'
  get 'requirements/:alias' => 'requirements#show', :as => 'requirement'
end

root :to => 'requirements#index'
    end"
  end
  
  MDWA::DSL.entities.all.each do |entity|
    generator_model = entity.generator_model
    
    # inject scaffold code
    inject_into_file path_to_routes, :after => "def mdwa_router(router)\n" do
      route_str = []
      route_str << "\n  namespace :#{generator_model.space} do" if generator_model.namespace?
      route_str << "    controller :#{generator_model.plural_name} do"
      route_str << "      post '#{generator_model.plural_name}/batch_update' => :batch_update, as: :#{generator_model.plural_name}_batch_update"
      route_str << "    end"
      route_str << "    resources :#{generator_model.plural_name}"
      route_str << "  end\n" if generator_model.namespace?
          
      route_str.join "\n"
    end
  
    # inject specific actions
    inject_into_file path_to_routes, :after => "controller :#{generator_model.plural_name} do" do
      routes = []
      entity.actions.generate_routes.each do |action_name, generation_string|
        routes << "\n\t#{generation_string}"
      end
      routes.join
    end
  end
end

#generate_tests ⇒ Object 



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# File 'lib/generators/mdwa/transform/transform_generator.rb', line 352

def generate_tests
end

#many_to_many_tables ⇒ Object

Search for many to many tables.



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# File 'lib/generators/mdwa/transform/transform_generator.rb', line 340

def many_to_many_tables
  @entities.each do |entity|
    entity.generator_model.associations.select{|a| a.has_and_belongs_to_many?}.each do |association|
      generate "mdwa:association #{association.model1.singular_name} has_and_belongs_to_many #{association.model2.singular_name} --skip-models"
    end
  end
end

#run_rake_migrate ⇒ Object 



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# File 'lib/generators/mdwa/transform/transform_generator.rb', line 348

def run_rake_migrate
  rake('db:migrate') if @pending_migrations and yes?('Run rake db:migrate?')
end