Class: Localtower::Generators::Migration

Inherits:
Object
  • Object
show all
Defined in:
lib/localtower/generators/migration.rb

Constant Summary collapse

TYPES = 
%w[string datetime date text uuid integer float json jsonb decimal binary boolean array references].freeze
ACTIONS = 
%w[
  add_column
  add_index_to_column
  remove_index_to_column
  belongs_to
  remove_column
  change_column_type
  rename_column
  drop_table
].freeze

Instance Method Summary collapse

Constructor Details

#initialize(migrations) ⇒ Migration

Returns a new instance of Migration.



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# File 'lib/localtower/generators/migration.rb', line 118

def initialize(migrations)
  @thor = ThorGeneratorMigration.new
  @migrations = JSON[migrations.to_json]
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/localtower/generators/migration.rb', line 123

def run
  model_names = migrations.map { |line| line['table_name'].camelize }.uniq.join

  cmd = "Change#{model_names}At#{Time.now.to_i}"
  ::Localtower::Tools.perform_migration(cmd)

  migrations.each do |action_line|
    next if action_line['action'].blank?

    {
      'add_column' => -> { add_column(action_line) },
      'remove_column' => -> { remove_column(action_line) },
      'rename_column' => -> { rename_column(action_line) },
      'change_column_type' => -> { change_column_type(action_line) },
      'add_index_to_column' => -> { add_index_to_column(action_line) },
      'belongs_to' => -> { belongs_to(action_line) },
      'remove_index_to_column' => -> { remove_index_to_column(action_line) },
      'drop_table' => -> { drop_table(action_line) }
    }[action_line['action']].call
  end
end