Class: DbdocEngine::Generators::UninstallGenerator

Inherits:
Rails::Generators::Base
  • Object
show all
Defined in:
lib/generators/dbdoc_engine/uninstall/uninstall_generator.rb

Constant Summary collapse

DBDOC_TABLES = 
%w[
  db_design_dynamic_columns
  db_design_dynamic_tables
  db_design_table_groups
  db_design_changelogs
  dbdoc_engine_users
].freeze

Instance Method Summary collapse

Instance Method Details

#confirm_uninstall ⇒ Object 



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# File 'lib/generators/dbdoc_engine/uninstall/uninstall_generator.rb', line 17

def confirm_uninstall
  say ""
  say "=" * 60, :red
  say "  DbdocEngine Uninstall", :red
  say "=" * 60, :red
  say ""
  say "This will permanently remove the following from your application:", :yellow
  say ""
  say "  DATABASE TABLES:", :yellow
  DBDOC_TABLES.each { |t| say "    - #{t}", :red }
  say ""
  say "  FILES & CONFIG:", :yellow
  say "    - DbdocEngine route from config/routes.rb", :red
  say "    - DbdocEngine pins from config/importmap.rb", :red
  say "    - DbdocEngine import from app/javascript/application.js", :red
  say "    - Seed file db/dbdoc_engine_seeds.rb", :red
  say ""
  say "=" * 60, :red
  say ""

  unless yes?("Are you sure you want to uninstall DbdocEngine? (y/N)", :red)
    say "Uninstall cancelled.", :green
    raise SystemExit
  end

  say ""
  if yes?("Do you want to DROP all DbdocEngine tables? This cannot be undone! (y/N)", :red)
    @drop_tables = true
  else
    say "Tables will be preserved. You can drop them manually later.", :yellow
    @drop_tables = false
  end
end

#drop_tables ⇒ Object 



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# File 'lib/generators/dbdoc_engine/uninstall/uninstall_generator.rb', line 51

def drop_tables
  return unless @drop_tables

  say ""
  say_status("uninstall", "Dropping DbdocEngine tables...", :yellow)

  DBDOC_TABLES.each do |table_name|
    if table_exists?(table_name)
      ActiveRecord::Base.connection.drop_table(table_name, force: :cascade)
      say_status("dropped", table_name, :red)
    else
      say_status("skipped", "#{table_name} (does not exist)", :cyan)
    end
  end

  remove_migration_entries
  say_status("done", "All DbdocEngine tables dropped", :green)
end

#final_instructions ⇒ Object 



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# File 'lib/generators/dbdoc_engine/uninstall/uninstall_generator.rb', line 137

def final_instructions
  say ""
  say "=" * 60, :green
  say "  DbdocEngine has been uninstalled", :green
  say "=" * 60, :green
  say ""
  say "Next steps:", :yellow
  say "  1. Remove 'gem \"dbdoc_engine\"' from your Gemfile", :yellow
  say "  2. Run 'bundle install'", :yellow
  unless @drop_tables
    say "  3. Manually drop DbdocEngine tables if needed:", :yellow
    DBDOC_TABLES.each { |t| say "     DROP TABLE IF EXISTS #{t} CASCADE;", :cyan }
  end
  say ""
end

#remove_importmap_pins ⇒ Object 



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# File 'lib/generators/dbdoc_engine/uninstall/uninstall_generator.rb', line 85

def remove_importmap_pins
  importmap_path = File.join(destination_root, "config/importmap.rb")
  return unless File.exist?(importmap_path)

  content = File.read(importmap_path)
  if content.include?("DbdocEngine")
    say_status("uninstall", "Removing DbdocEngine importmap pins...", :yellow)
    new_content = content.gsub(/\n*\s*if defined\?\(DbdocEngine\).*?end\n?/m, "\n")
    File.write(importmap_path, new_content)
    say_status("removed", "DbdocEngine pins from importmap.rb", :green)
  else
    say_status("skipped", "No DbdocEngine pins found in importmap.rb", :cyan)
  end
end

#remove_js_import ⇒ Object 



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# File 'lib/generators/dbdoc_engine/uninstall/uninstall_generator.rb', line 100

def remove_js_import
  js_path = File.join(destination_root, "app/javascript/application.js")
  return unless File.exist?(js_path)

  content = File.read(js_path)
  if content.include?("dbdoc_engine")
    say_status("uninstall", "Removing DbdocEngine JS import...", :yellow)
    new_content = content.gsub(/^.*dbdoc_engine.*\n?/, "")
    File.write(js_path, new_content)
    say_status("removed", "DbdocEngine import from application.js", :green)
  else
    say_status("skipped", "No DbdocEngine import found in application.js", :cyan)
  end
end

#remove_manifest_entries ⇒ Object 



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# File 'lib/generators/dbdoc_engine/uninstall/uninstall_generator.rb', line 124

def remove_manifest_entries
  manifest_path = File.join(destination_root, "app/assets/config/manifest.js")
  return unless File.exist?(manifest_path)

  content = File.read(manifest_path)
  if content.include?("dbdoc_engine")
    say_status("uninstall", "Removing DbdocEngine manifest entries...", :yellow)
    new_content = content.gsub(/^.*dbdoc_engine.*\n?/, "")
    File.write(manifest_path, new_content)
    say_status("removed", "DbdocEngine entries from manifest.js", :green)
  end
end

#remove_route ⇒ Object 



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# File 'lib/generators/dbdoc_engine/uninstall/uninstall_generator.rb', line 70

def remove_route
  routes_path = File.join(destination_root, "config/routes.rb")
  return unless File.exist?(routes_path)

  content = File.read(routes_path)
  if content.include?("DbdocEngine::Engine")
    say_status("uninstall", "Removing DbdocEngine route...", :yellow)
    new_content = content.gsub(/^\s*mount\s+DbdocEngine::Engine.*\n/, "")
    File.write(routes_path, new_content)
    say_status("removed", "DbdocEngine route from routes.rb", :green)
  else
    say_status("skipped", "No DbdocEngine route found in routes.rb", :cyan)
  end
end

#remove_seed_file ⇒ Object 



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# File 'lib/generators/dbdoc_engine/uninstall/uninstall_generator.rb', line 115

def remove_seed_file
  seed_file = File.join(destination_root, "db/dbdoc_engine_seeds.rb")
  if File.exist?(seed_file)
    say_status("uninstall", "Removing seed file...", :yellow)
    File.delete(seed_file)
    say_status("removed", "db/dbdoc_engine_seeds.rb", :green)
  end
end