Class: MigrationBundler::Targets::SqliteTarget

Inherits:
Base
  • Object
show all
Defined in:
lib/migration_bundler/targets/sqlite/sqlite_target.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#generate, name, #push, source_root, #validate

Methods included from Actions

#bundle, #git, #git_add, #truncate_database, #unique_tag_for_version

Class Method Details

.register_with_cli(cli) ⇒ Object

TODO: Need a way to do this for self elegantly…



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# File 'lib/migration_bundler/targets/sqlite/sqlite_target.rb', line 7

def self.register_with_cli(cli)
  cli.method_option :database, type: :string, aliases: '-d', desc: "Set target DATABASE", for: :dump
  cli.method_option :database, type: :string, aliases: '-d', desc: "Set target DATABASE", for: :load
end

Instance Method Details

#drop ⇒ Object 



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# File 'lib/migration_bundler/targets/sqlite/sqlite_target.rb', line 86

def drop
  say_status :truncate, database.path, :yellow
  database.drop
end

#dump ⇒ Object 



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# File 'lib/migration_bundler/targets/sqlite/sqlite_target.rb', line 34

def dump
  database_url = (options[:database] && URI(options[:database])) || project.database_url
  database_path = database_url.path || database_url.opaque
  fail Error, "Cannot dump database: no file at path '#{database_path}'." unless File.exists?(database_path)

  @database = MigrationBundler::Databases::SqliteDatabase.new(database_url)
  fail Error, "Cannot dump database: the database at path '#{database_path}' does not have a `schema_migrations` table." unless database.migrations_table?
  say "Dumping schema from database '#{database_path}'"

  File.truncate(project.schema_path, 0)

  types = { table: 'tables', index: 'indexes', trigger: 'triggers', view: 'views'}
  types.each do |type, name|
    say "Dumping #{name}..."
    with_padding do
      database.dump_to_schema(type, project.schema_path) do |name|
        say "wrote #{type}: #{name}", :green
      end
    end
    say
  end

  File.open(project.schema_path, 'a') do |f|
    project.config['db.dump_tables'].each do |table_name|
      say "Dumping rows from '#{table_name}'..."
      with_padding do
        row_statements = database.dump_rows(table_name)
        f.puts row_statements.join("\n")
        say "wrote #{row_statements.size} rows.", :green
      end
    end
    say
  end

  say "Dump complete. Schema written to #{project.schema_path}."
end

#init ⇒ Object 



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# File 'lib/migration_bundler/targets/sqlite/sqlite_target.rb', line 12

def init
  migration_name = MigrationBundler::Util.migration_named('create_' + options['name'])
  template('create_migration_bundler_tables.sql.erb', "migrations/#{migration_name}.sql")
  git_add "migrations/#{migration_name}.sql"
  create_file(database_path)
  append_to_file '.gitignore', database_path
end

#load ⇒ Object 



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# File 'lib/migration_bundler/targets/sqlite/sqlite_target.rb', line 71

def load
  project = MigrationBundler::Project.load
  unless File.size?(project.schema_path)
    raise Error, "Cannot load database: empty schema found at #{project.schema_path}. Maybe you need to `mb migrate`?"
  end

  drop
  command = "sqlite3 #{database.path} < #{project.schema_path}"
  say_status :executing, command
  stdout_str, stderr_str, status = Open3.capture3(command)
  fail Error, "Failed loading schema: #{stderr_str}" unless stderr_str.empty?

  say "Loaded schema at version #{database.current_version}"
end

#new(name) ⇒ Object 



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# File 'lib/migration_bundler/targets/sqlite/sqlite_target.rb', line 27

def new(name)
  migration_ext = project.database_class.migration_ext
  migration_name = MigrationBundler::Util.migration_named(name) + migration_ext
  template('migration.sql.erb', "migrations/#{migration_name}")
  git_add "migrations/#{migration_name}"
end