Class: Mio::Migrations

Inherits:
Object
  • Object
show all
Defined in:
lib/mio/migrations.rb

Instance Method Summary collapse

Constructor Details

#initialize(base_uri, username, password, verify_ssl, base_dir = './migrations') ⇒ Migrations

Returns a new instance of Migrations.



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# File 'lib/mio/migrations.rb', line 7

def initialize base_uri, username, password, verify_ssl, base_dir='./migrations'
  @mio = Mio.new do |m|
    m.base_uri = base_uri
    m.username = username
    m.password = password
    m.verify_ssl = verify_ssl
  end
  @base = File.expand_path(base_dir)
  @migrations = Dir.glob( File.join(@base, '*.rb') ).sort
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_sym, *arguments, &block) ⇒ Object 



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# File 'lib/mio/migrations.rb', line 55

def method_missing method_sym, *arguments, &block
  mapped = Mio::Model.mappings[method_sym.to_s]

  if mapped.nil?
    super
  else
    conf = OpenStruct.new
    yield conf
    type_migration mapped, conf
  end
end

Instance Method Details

#create_migration_file(desc) ⇒ Object 



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# File 'lib/mio/migrations.rb', line 18

def create_migration_file desc
  File.join(@base,
            "#{Time.now.strftime('%Y%m%d%H%M%S')}_#{desc.gsub(/\W/, '-')}.rb")
end

#has_run?(migration) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mio/migrations.rb', line 31

def has_run? migration
  false
end

#load_migration(migration) ⇒ Object 



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# File 'lib/mio/migrations.rb', line 35

def load_migration migration
  eval File.read(migration)
end

#migrate(desc, &block) ⇒ Object

Helper methods for within the migrations



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# File 'lib/mio/migrations.rb', line 40

def migrate desc, &block
  msg desc, 'starting'
  block.call

  msg desc, 'completed'
end

#respond_to?(method_sym, include_private = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mio/migrations.rb', line 67

def respond_to? method_sym, include_private=false
  if Mio::Model.mappings[method_sym.to_s].nil?
    super
  else
    true
  end
end

#run_migrations ⇒ Object 



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# File 'lib/mio/migrations.rb', line 23

def run_migrations
  @migrations.each do |migration|
    unless has_run? migration
      load_migration migration
    end
  end
end

#type_migration(klass, conf) ⇒ Object 



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# File 'lib/mio/migrations.rb', line 47

def type_migration klass, conf
  if klass.nested?
    get_it klass.new(@mio.client, conf)
  else
    do_it klass.new(@mio.client, conf)
  end
end