Module: TinyCMS::Node

Defined in:
lib/tiny_cms/node.rb

Defined Under Namespace

Modules: ClassMethods

Constant Summary collapse

@@uuid = 
UUID.new

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(model) ⇒ Object 



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# File 'lib/tiny_cms/node.rb', line 14

def self.included model
  model.extend ClassMethods
  
  model.named_scope :include_tree, lambda { |depth|
    children = :children 
    2.upto(depth){ children = {:children => children} }
    {:include => children}
  }
  
  model.named_scope :by_path, lambda { |path|
    next {:conditions => {:permalink => path.last}} if path.size - 1 == 0
    parents = :parent
    2.upto(path.size - 1){ parents = {:parent => parents} }
    {:joins => parents, :conditions => {:permalink => path.last, 'parents_pages.permalink' => path[-2]}}
  }
  
  model.named_scope :roots,   :conditions => {:parent_id => nil}, :order => 'position'
  
  model.named_scope :by_parent_id, lambda { |parent_id|
    {:conditions => {:parent_id => parent_id}}
  }
  
  model.named_scope :exclude_by_id, lambda { |id| {:conditions => "id != #{id}"} }
  
  model.belongs_to :parent,   :class_name => model.to_s, :foreign_key => 'parent_id'
  model.has_many   :children, :class_name => model.to_s, :foreign_key => 'parent_id', :order => 'position', :dependent => :destroy
  
  model.validates_presence_of   :title
  model.validates_uniqueness_of :permalink, :scope  => [:parent_id]

  model.validates_associated :children

  model.before_validation :parameterize_permalink
  
  model.send :attr_accessor, :rel # Does nothing but jstree sends attribute
  
  model.send :define_method, :children_with_position= do |array|
    # TODO: Too unefficient
    transaction { array.each_with_index{ |child, index| child.update_attributes! :position => index, :parent_id => id } } rescue nil
    self.children_without_position = array
  end
  model.alias_method_chain :children=, :position

  if model.columns.find { |c| c.name == 'dynamic_route' }
    # dynamic routing
    model.before_save   :update_dynamic_route!
    model.after_destroy :remove_dynamic_route!
    model.find(:all, "dynamic_route IS NOT nil").each(&:update_dynamic_route!)
  end
end

Instance Method Details

#add_dynamic_route! ⇒ Object

Dynamic routing



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# File 'lib/tiny_cms/node.rb', line 93

def add_dynamic_route!
  controller, action      = dynamic_route.split('#')
  self.dynamic_route_uuid = @@uuid.generate
  action, params          = action.split('?') 
  route                   = {:controller => controller, :action => action, :dynamic_route_uuid => dynamic_route_uuid}
  route.merge! Rack::Utils.parse_query(params) if params
  new_route = ActionController::Routing::Routes.builder.build(path, route)
  ActionController::Routing::Routes.routes.unshift new_route
end

#parameterize_permalink ⇒ Object 



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# File 'lib/tiny_cms/node.rb', line 67

def parameterize_permalink
  text = permalink.blank? ? title : permalink
  self.permalink = text.parameterize if text
end

#path ⇒ Object 



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# File 'lib/tiny_cms/node.rb', line 72

def path
  "#{ parent.path if parent }/#{ permalink }"
end

#remove_dynamic_route! ⇒ Object 



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# File 'lib/tiny_cms/node.rb', line 103

def remove_dynamic_route!
  ActionController::Routing::Routes.routes.reject! { |r| r.instance_variable_get(:@requirements)[:dynamic_route_uuid] == dynamic_route_uuid } unless dynamic_route_uuid.blank?
end

#section ⇒ Object 



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# File 'lib/tiny_cms/node.rb', line 84

def section
  self.class.by_parent_id parent_id
end

#siblings ⇒ Object 



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# File 'lib/tiny_cms/node.rb', line 80

def siblings
  section.exclude_by_id self.id
end

#to_hash ⇒ Object 



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# File 'lib/tiny_cms/node.rb', line 76

def to_hash
  {:attributes => {'data-node-id' => id, 'data-permalink' => permalink, 'data-path' => path}, :data => title, :children => children.map{ |c| c.to_hash } }
end

#to_json(opts = {}) ⇒ Object 



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# File 'lib/tiny_cms/node.rb', line 88

def to_json opts = {}
  self.to_hash.to_json
end

#update_dynamic_route! ⇒ Object 



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# File 'lib/tiny_cms/node.rb', line 107

def update_dynamic_route!
  remove_dynamic_route!
  add_dynamic_route! unless dynamic_route.blank?
end