Class: PryHelper::Definition

Inherits:
Object
  • Object
show all
Defined in:
lib/pry-helper/definition.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Definition

Returns a new instance of Definition.



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# File 'lib/pry-helper/definition.rb', line 104

def initialize
  @@models = []

  ActiveRecord::Base.connection.tap do |conn|
    defined_models = ::ApplicationRecord.descendants
    tables = conn.tables
    if conn.adapter_name == 'Mysql2'
      conn.define_singleton_method(:dump) do |filename, no_create_db=false|
        PryHelper::Mysqldump.new.dump_database(filename, no_create_db)
      end
      require 'pry-helper/ext/active_record/connection_adapters/abstract_mysql_adapter'
      comments = conn.table_comment_of_tables(tables)
      primary_keys = conn.primary_keys_of_tables(tables)
    else
      comments = tables.map { |t| [t, conn.table_comment(t)] }.to_h
      primary_keys = tables.map { |t| [t, conn.primary_keys(t)] }.to_h
    end

    ApplicationRecord.include(PryHelper::Extension)

    tables.each do |table_name|
      table_comment = comments[table_name]
      primary_keys[table_name].tap do |pkey|
        table_name.camelize.tap do |const_name|
          const_name = 'Modul' if const_name == 'Module'
          const_name = 'Clazz' if const_name == 'Class'
          if model_class = defined_models.find { |m| m.table_name == table_name }
            model_class.tap do |clazz|
              model_class.name.gsub(/[a-z]*/, '').tap do |bare_abbr|
                abbr_const = nil
                9.times do |idx|
                  abbr = idx.zero? ? bare_abbr : "#{bare_abbr}#{idx+1}"
                  unless Object.const_defined?(abbr)
                    Object.const_set abbr, model_class
                    abbr_const = abbr
                    break
                  end
                end

                @@models << {
                  model: model_class,
                  abbr: abbr_const,
                  table: table_name,
                  comment: table_comment
                }
              end
            end
          else
            Class.new(::ApplicationRecord) do
              if pkey.is_a?(Array) && pkey.size > 1
                self.primary_keys = pkey
              else
                self.primary_key = pkey&.first
              end
              self.table_name = table_name
              self.inheritance_column = nil
              ActiveRecord.default_timezone = :local
            end.tap do |clazz|
              Object.const_set(const_name, clazz).tap do |const|
                const_name.gsub(/[a-z]*/, '').tap do |bare_abbr|
                  abbr_const = nil
                  9.times do |idx|
                    abbr = idx.zero? ? bare_abbr : "#{bare_abbr}#{idx+1}"
                    unless Object.const_defined?(abbr)
                      Object.const_set abbr, const
                      abbr_const = abbr
                      break
                    end
                  end

                  @@models << {
                    model: const,
                    abbr: abbr_const,
                    table: table_name,
                    comment: table_comment
                  }
                end
              end
            end
          end
        end
      end
    end
  end
end

Class Method Details

.models ⇒ Object 



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# File 'lib/pry-helper/definition.rb', line 99

def models
  @@models ||= []
end