Class: RareMap::Mapper

Inherits:
Object
  • Object
show all
Includes:
ConfigLoader, ModelBuilder, ModelGenerator, RailsLocator, SchemaParser, SchemaReader
Defined in:
lib/rare_map.rb

Overview

RareMap::Mapper converts relational databases into ActiveRecord files.

Constant Summary

Constants included from ConfigLoader

ConfigLoader::OPTS_KEY

Instance Method Summary collapse

Methods included from RailsLocator

#locate_rails_root

Methods included from ConfigLoader

#load_config

Methods included from SchemaReader

#read_schema

Methods included from SchemaParser

#parse_schema

Methods included from ModelBuilder

#build_models

Methods included from ModelGenerator

#generate_models

Constructor Details

#initialize ⇒ Mapper

Creates a Mapper.



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# File 'lib/rare_map.rb', line 24

def initialize
  @rails_root = locate_rails_root
end

Instance Method Details

#mapping ⇒ Object

Converts relational databases into ActiveRecord files by given RareMap config yaml file.



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# File 'lib/rare_map.rb', line 29

def mapping
  @db_profiles = load_config @rails_root ? File.join(@rails_root, 'config') : '.'
  @db_profiles.each do |profile|
    profile.schema = read_schema profile
    profile.tables = parse_schema profile.schema
  end
  @models = build_models @db_profiles
  generate_models @models, @rails_root
  if @rails_root
    puts '*****************************************************************'
    puts '  Activerecord models are generated. Enjoy it!'
    puts '*****************************************************************'
  else
    puts '*****************************************************************'
    puts '  A demo.rb is generated.'
    puts '*****************************************************************'
    generate_demo unless File.exist?('demo.rb')
  end
  @models
  
rescue ConfigNotFoundError => e
  puts "Please put your database config in `#{'config/' if @rails_root}rare_map.yml`."
end