Class: Keyrack::Group

Inherits:
Hash
  • Object
show all
Defined in:
lib/keyrack/group.rb

Instance Method Summary collapse

Constructor Details

#initialize(arg = nil) ⇒ Group

Returns a new instance of Group.



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# File 'lib/keyrack/group.rb', line 3

def initialize(arg = nil)
  case arg
  when String
    self['name'] = arg
    self['sites'] = []
    self['groups'] = {}
  when Hash
    load(arg)
  when nil
    @uninitialized = true
  end

  @after_event = []
end

Instance Method Details

#add_group(group) ⇒ Object 



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# File 'lib/keyrack/group.rb', line 136

def add_group(group)
  raise "add_group is not allowed until Group is initialized" if @uninitialized && !@loading
  add_group_without_callbacks(group)

  event = Event.new(self, 'add')
  event.collection_name = 'groups'
  event.object = group
  trigger(event)
end

#add_site(site) ⇒ Object 



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# File 'lib/keyrack/group.rb', line 108

def add_site(site)
  raise "add_site is not allowed until Group is initialized" if @uninitialized && !@loading
  add_site_without_callbacks(site)

  event = Event.new(self, 'add')
  event.collection_name = 'sites'
  event.object = site
  trigger(event)
end

#after_event(&block) ⇒ Object 



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# File 'lib/keyrack/group.rb', line 167

def after_event(&block)
  @after_event << block
end

#change_attribute(name, value) ⇒ Object 



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# File 'lib/keyrack/group.rb', line 82

def change_attribute(name, value)
  event = Event.new(self, 'change')
  event.attribute_name = name
  event.previous_value = self[name]
  event.new_value = value

  self[name] = value
  trigger(event)
end

#encode_with(coder) ⇒ Object 



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# File 'lib/keyrack/group.rb', line 171

def encode_with(coder)
  coder.represent_map(nil, self)
end

#group(group_name) ⇒ Object 



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# File 'lib/keyrack/group.rb', line 159

def group(group_name)
  groups[group_name]
end

#group_names ⇒ Object 



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# File 'lib/keyrack/group.rb', line 163

def group_names
  groups.keys
end

#groups ⇒ Object 



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# File 'lib/keyrack/group.rb', line 104

def groups
  self['groups']
end

#load(hash) ⇒ Object 



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# File 'lib/keyrack/group.rb', line 18

def load(hash)
  @loading = true

  if !hash.has_key?('name')
    raise ArgumentError, "hash is missing the 'name' key"
  end
  if !hash['name'].is_a?(String)
    raise ArgumentError, "name is not a String"
  end
  self['name'] = hash['name']

  if !hash.has_key?('sites')
    raise ArgumentError, "hash is missing the 'sites' key"
  end
  if !hash['sites'].is_a?(Array)
    raise ArgumentError, "sites is not an Array"
  end

  if !hash.has_key?('groups')
    raise ArgumentError, "hash is missing the 'groups' key"
  end
  if !hash['groups'].is_a?(Hash)
    raise ArgumentError, "groups is not a Hash"
  end

  self['sites'] = []
  hash['sites'].each_with_index do |site_hash, site_index|
    if !site_hash.is_a?(Hash)
      raise ArgumentError, "site #{site_index} is not a Hash"
    end

    begin
      site = Site.new(site_hash)
      add_site_without_callbacks(site)
    rescue SiteError => e
      raise ArgumentError, "site #{site_index} is not valid: #{e.message}"
    end
  end

  self['groups'] = {}
  hash['groups'].each_pair do |group_name, group_hash|
    if !group_name.is_a?(String)
      raise ArgumentError, "group key is not a String"
    end
    if !group_hash.is_a?(Hash)
      raise ArgumentError, "group value for #{group_name.inspect} is not a Hash"
    end

    begin
      group = Group.new(group_hash)
      add_group_without_callbacks(group)
    rescue ArgumentError => e
      raise ArgumentError, "group #{group_name.inspect} is not valid: #{e.message}"
    end

    if group.name != group_name
      raise ArgumentError, "group name mismatch: #{group_name.inspect} != #{group.name.inspect}"
    end
  end

  @loading = false
  @uninitialized = false
end

#name ⇒ Object 



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# File 'lib/keyrack/group.rb', line 92

def name
  self['name']
end

#name=(name) ⇒ Object 



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# File 'lib/keyrack/group.rb', line 96

def name=(name)
  change_attribute('name', name)
end

#remove_group(group_name) ⇒ Object 



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# File 'lib/keyrack/group.rb', line 146

def remove_group(group_name)
  raise "remove_group is not allowed until Group is initialized" if @uninitialized && !@loading
  if !groups.has_key?(group_name)
    raise GroupError, "group doesn't exist"
  end
  group = groups.delete(group_name)

  event = Event.new(self, 'remove')
  event.collection_name = 'groups'
  event.object = group
  trigger(event)
end

#remove_site(site) ⇒ Object 



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# File 'lib/keyrack/group.rb', line 122

def remove_site(site)
  raise "remove_site is not allowed until Group is initialized" if @uninitialized && !@loading
  index = sites.index(site)
  if index.nil?
    raise GroupError, "site doesn't exist"
  end
  site = sites.delete_at(index)

  event = Event.new(self, 'remove')
  event.collection_name = 'sites'
  event.object = site
  trigger(event)
end

#site(index) ⇒ Object 



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# File 'lib/keyrack/group.rb', line 118

def site(index)
  sites[index]
end

#sites ⇒ Object 



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# File 'lib/keyrack/group.rb', line 100

def sites
  self['sites']
end