Class: Brick::ModelsGenerator

Inherits:
Rails::Generators::Base
  • Object
show all
Includes:
FancyGets
Defined in:
lib/generators/brick/models_generator.rb

Overview

Auto-generates models

Instance Method Summary collapse

Instance Method Details

#brick_models ⇒ Object 



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# File 'lib/generators/brick/models_generator.rb', line 16

def brick_models
  # %%% If Apartment is active and there's no schema_to_analyse, ask which schema they want

  ::Brick.mode = :on
  ActiveRecord::Base.establish_connection

  # Load all models
  ::Brick.eager_load_classes

  # Generate a list of viable models that can be chosen
  longest_length = 0
  model_info = Hash.new { |h, k| h[k] = {} }
  tableless = Hash.new { |h, k| h[k] = [] }
  existing_models = ActiveRecord::Base.descendants.reject do |m|
    m.abstract_class? || !m.table_exists? || ::Brick.relations.key?(m.table_name)
  end
  models = ::Brick.relations.keys.each_with_object([]) do |tbl, s|
    next if tbl.is_a?(Symbol)

    tbl_parts = tbl.split('.')
    tbl_parts.shift if [::Brick.default_schema, 'public'].include?(tbl_parts.first)
    tbl_parts[-1] = tbl_parts[-1].singularize
    s << tbl_parts.join('/').camelize
  end - existing_models.map(&:name)
  models.sort! do |a, b| # Sort first to separate namespaced stuff from the rest, then alphabetically
    is_a_namespaced = a.include?('::')
    is_b_namespaced = b.include?('::')
    if is_a_namespaced && !is_b_namespaced
      1
    elsif !is_a_namespaced && is_b_namespaced
      -1
    else
      a <=> b
    end
  end
  models.each do |m| # Find longest name in the list for future use to show lists on the right side of the screen
    if longest_length < (len = m.length)
      longest_length = len
    end
  end
  chosen = gets_list(list: models, chosen: models.dup)
  relations = ::Brick.relations
  chosen.each do |model_name|
    # %%% If we're in a schema then make sure the module file exists
    base_module = if (model_parts = model_name.split('::')).length > 1
                    "::#{model_parts.first}".constantize
                  else
                    Object
                  end
    _built_model, code = Object.send(:build_model, relations, base_module, base_module.name, model_parts.last, nil, true)
    path = ['models']
    path.concat(model_parts.map(&:underscore))
    dir = +"#{::Rails.root}/app"
    path[0..-2].each do |path_part|
      dir << "/#{path_part}"
      Dir.mkdir(dir) unless Dir.exist?(dir)
    end
    File.open("#{dir}/#{path.last}.rb", 'w') { |f| f.write code } unless code.blank?
  end
  puts "\n*** Created #{chosen.length} model files under app/models ***"
end