Class: Rails::DBConsole

Inherits:
Object show all
Defined in:
railties/lib/rails/commands/dbconsole/dbconsole_command.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ DBConsole

Returns a new instance of DBConsole.


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# File 'railties/lib/rails/commands/dbconsole/dbconsole_command.rb', line 13

def initialize(options = {})
  @options = options
end

Class Method Details

.start(*args) ⇒ Object


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# File 'railties/lib/rails/commands/dbconsole/dbconsole_command.rb', line 9

def self.start(*args)
  new(*args).start
end

Instance Method Details

#databaseObject


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# File 'railties/lib/rails/commands/dbconsole/dbconsole_command.rb', line 121

def database
  @options[:database]
end

#db_configObject


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# File 'railties/lib/rails/commands/dbconsole/dbconsole_command.rb', line 97

def db_config
  return @db_config if defined?(@db_config)

  # If the user provided a database, use that. Otherwise find
  # the first config in the database.yml
  if database
    @db_config = configurations.configs_for(env_name: environment, name: database, include_hidden: true)
  else
    @db_config = configurations.find_db_config(environment)
  end

  unless @db_config
    missing_db = database ? "'#{database}' database is not" : "No databases are"
    raise ActiveRecord::AdapterNotSpecified,
      "#{missing_db} configured for '#{environment}'. Available configuration: #{configurations.inspect}"
  end

  @db_config
end

#environmentObject


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# File 'railties/lib/rails/commands/dbconsole/dbconsole_command.rb', line 117

def environment
  Rails.respond_to?(:env) ? Rails.env : Rails::Command.environment
end

#startObject


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# File 'railties/lib/rails/commands/dbconsole/dbconsole_command.rb', line 17

def start
  ENV["RAILS_ENV"] ||= @options[:environment] || environment
  config = db_config.configuration_hash

  case db_config.adapter
  when /^(jdbc)?mysql/
    args = {
      host: "--host",
      port: "--port",
      socket: "--socket",
      username: "--user",
      encoding: "--default-character-set",
      sslca: "--ssl-ca",
      sslcert: "--ssl-cert",
      sslcapath: "--ssl-capath",
      sslcipher: "--ssl-cipher",
      sslkey: "--ssl-key"
    }.filter_map { |opt, arg| "#{arg}=#{config[opt]}" if config[opt] }

    if config[:password] && @options[:include_password]
      args << "--password=#{config[:password]}"
    elsif config[:password] && !config[:password].to_s.empty?
      args << "-p"
    end

    args << db_config.database

    find_cmd_and_exec(["mysql", "mysql5"], *args)

  when /^postgres|^postgis/
    ENV["PGUSER"]         = config[:username] if config[:username]
    ENV["PGHOST"]         = config[:host] if config[:host]
    ENV["PGPORT"]         = config[:port].to_s if config[:port]
    ENV["PGPASSWORD"]     = config[:password].to_s if config[:password] && @options[:include_password]
    ENV["PGSSLMODE"]      = config[:sslmode].to_s if config[:sslmode]
    ENV["PGSSLCERT"]      = config[:sslcert].to_s if config[:sslcert]
    ENV["PGSSLKEY"]       = config[:sslkey].to_s if config[:sslkey]
    ENV["PGSSLROOTCERT"]  = config[:sslrootcert].to_s if config[:sslrootcert]
    find_cmd_and_exec("psql", db_config.database)

  when "sqlite3"
    args = []

    args << "-#{@options[:mode]}" if @options[:mode]
    args << "-header" if @options[:header]
    args << File.expand_path(db_config.database, Rails.respond_to?(:root) ? Rails.root : nil)

    find_cmd_and_exec("sqlite3", *args)

  when "oracle", "oracle_enhanced"
    logon = ""

    if config[:username]
      logon = config[:username].dup
      logon << "/#{config[:password]}" if config[:password] && @options[:include_password]
      logon << "@#{db_config.database}" if db_config.database
    end

    find_cmd_and_exec("sqlplus", logon)

  when "sqlserver"
    args = []

    args += ["-d", "#{db_config.database}"] if db_config.database
    args += ["-U", "#{config[:username]}"] if config[:username]
    args += ["-P", "#{config[:password]}"] if config[:password]

    if config[:host]
      host_arg = +"tcp:#{config[:host]}"
      host_arg << ",#{config[:port]}" if config[:port]
      args += ["-S", host_arg]
    end

    find_cmd_and_exec("sqlcmd", *args)

  else
    abort "Unknown command-line client for #{db_config.database}."
  end
end