Module: ZD

Defined in:
lib/zd.rb,
lib/zd/version.rb

Defined Under Namespace

Classes: Migration

Constant Summary collapse

VERSION = 
"0.0.1"

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.[](name) ⇒ Object 



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# File 'lib/zd.rb', line 4

def self.[](name)
  migrations[name]
end

.add_dependency(migration, depends_on) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/zd.rb', line 36

def self.add_dependency(migration, depends_on)
  raise ArgumentError, "Dependency #{depends_on} not found for #{migration}" unless(depends_on == :nothing || self[depends_on])
  dependencies[depends_on] << migration
end

.dependencies ⇒ Object 



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# File 'lib/zd.rb', line 41

def self.dependencies
  @dependencies ||= Hash.new{|h,k| h[k] = []}
end

.load!(path) ⇒ Object 



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# File 'lib/zd.rb', line 12

def self.load!(path)
  Dir["#{path}/*.rb"].each do |e|
    if block_given?
      yield(e)
    else
      require e
    end
  end
end

.migrations ⇒ Object 



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# File 'lib/zd.rb', line 22

def self.migrations
  @migrations ||= {}
end

.register_migration(name, migration, dependencies) ⇒ Object 



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# File 'lib/zd.rb', line 26

def self.register_migration(name, migration, dependencies)
  if dependencies.empty?
    raise ArgumentError, "You must declare migration dependencies (or pass :nothing)"
  end
  migrations[name] = migration
  dependencies.each do |d|
    add_dependency(name, d)
  end
end

Instance Method Details

#HANDLE(name) {|self[name]| ... } ⇒ Object

Yields:

  • (self[name]) 


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# File 'lib/zd.rb', line 8

def HANDLE(name)
  yield(self[name])
end