Class: Nemo::Examples::PersonEditor::Root

Inherits:
Wee::Component
  • Object
show all
Defined in:
lib/nemo/examples/person_editor.rb

Overview

Display a list of persons for editing or deletion

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Root

Create a ListItemViewer for each record



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# File 'lib/nemo/examples/person_editor.rb', line 123

def initialize
  super
  @views = Wee::Session.current.domainmodel.persons.collect { |p| viewer_for(p) }
  @views.each { |view| @children << view }
end

Instance Attribute Details

#views ⇒ Object

Returns the value of attribute views.



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# File 'lib/nemo/examples/person_editor.rb', line 119

def views
  @views
end

Instance Method Details

#add_new ⇒ Object

Add a new Person



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# File 'lib/nemo/examples/person_editor.rb', line 176

def add_new
  if obj = call( Nemo::Examples::PersonEditor::Editor.new(Nemo::Examples::PersonEditor::Person.new.metaobject) )
    session.domainmodel.add_person(obj)
    @views << viewer_for(obj)
  end
end

#backtrack_state(snapshot) ⇒ Object

Enable Wee backtracking for views



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# File 'lib/nemo/examples/person_editor.rb', line 131

def backtrack_state(snapshot)
  super
  snapshot.add(self.children)
end

#delete(obj) ⇒ Object

Delete a Person. Requires confirmation: Are you sure you want to delete? [OK] [Cancel]



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# File 'lib/nemo/examples/person_editor.rb', line 192

def delete(obj)
  if call( Nemo::Components::ConfirmDialog.new("Are you sure you want to delete #{obj.name}?") )
    session.domainmodel.remove_person(obj)
    session.domainmodel.persons.each do |person|
      person.father = nil if person.father == obj
      person.mother = nil if person.mother == obj
    end
    @views.delete_if { |view| view.metaobject.baseobject == obj }
  end
end

#edit(obj) ⇒ Object

Edit a Person



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# File 'lib/nemo/examples/person_editor.rb', line 185

def edit(obj)
  call( Nemo::Examples::PersonEditor::Editor.new(obj.metaobject) ) # will auto-commit
end

#render ⇒ Object

Render the page



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# File 'lib/nemo/examples/person_editor.rb', line 144

def render
  r.html do
    r.head { r.title('Person Editor') }
    r.link.type('text/css').rel('stylesheet').href('/nemo/person_editor.css')
    r.body do
      r.h1('Person Editor')
      r.table.width('100%').with do
        if @views.empty?
          r.table_row { r.table_header('No persons found.') }
        else
          labels = @views.first.metaobject.visible_attributes.collect { |a| a.label }
          r.table_row { labels.each { |label| r.table_header(label) }; r.table_header { r.space } }
          @views.each do |view|
            r.table_row do
              r.render(view)
              r.table_header do
                r.anchor.callback{ edit(view.metaobject.baseobject) }.with('edit')
                r.space; r.text('|'); r.space
                r.anchor.callback{ delete(view.metaobject.baseobject) }.with('delete')
              end
            end
          end
        end
      end
      r.break
      r.anchor.callback{ add_new }.with('create new person')
    end
  end
end

#viewer_for(obj) ⇒ Object

Create a new ListItemViewer for a given metaobject



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# File 'lib/nemo/examples/person_editor.rb', line 138

def viewer_for(obj)
  Nemo::Examples::PersonEditor::ListItemViewer.new(obj.metaobject.hide!(:password, :interests))
end