Class: Spectre::MySQL::Client

Inherits:
Object
  • Object
show all
Includes:
Delegate
Defined in:
lib/spectre/mysql.rb

Instance Method Summary collapse

Constructor Details

#initialize(config, logger) ⇒ Client

Returns a new instance of Client.



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# File 'lib/spectre/mysql.rb', line 39

def initialize config, logger
  @config = config['mysql'] || {}
  @logger = logger

  @result = nil
  @last_conn = nil
end

Instance Method Details

#mysql(name = nil) ⇒ Object 



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# File 'lib/spectre/mysql.rb', line 47

def mysql(name = nil, &)
  query = {}

  if !name.nil? and @config.key? name
    query.merge! @config[name]

    unless query['host']
      raise "No `host' set for MySQL client '#{name}'. Check your MySQL config in your environment."
    end

  elsif !name.nil?
    query['host'] = name
  elsif @last_conn.nil?
    raise 'No name given and there was no previous MySQL connection to use'
  end

  MySqlQuery.new(query).instance_eval(&) if block_given?

  unless name.nil?
    @last_conn = {
      host: query['host'],
      username: query['username'],
      password: query['password'],
      database: query['database'],
    }
  end

  @logger.info "Connecting to database #{query['username']}@#{query['host']}:#{query['database']}"

  client = ::Mysql2::Client.new(**@last_conn)

  res = []

  query['query']&.each do |statement|
    @logger.info("Executing statement '#{statement}'")
    res = client.query(statement, cast_booleans: true)
  end

  @result = res.map { |row| OpenStruct.new row } if res

  client.close
end

#result ⇒ Object 



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# File 'lib/spectre/mysql.rb', line 90

def result
  raise 'No MySQL query has been executed yet' unless @result

  @result
end