A new CheckBox component in Streamlined
Posted by Sandro Paganotti in
Ruby on Rails -
no comments
I’ve noticed that Streamlined when display has_and_belongs_to_many or has_many relationships in an edit view calls ‘Streamlined::Components::Select’ (lib/streamlined/column/association.rb line 123). That class simply render a ‘select’ tag with multiple choices.
I created a new component that can be called instead the standard one. It’s called CheckBox and it displays, as the name may suggest, a checkbox for each choice available.
To add this component simply create a new file under ‘lib/streamlined/components’ called ‘checkbox.rb’ and paste the same content of ‘select.rb’ except these two changes:
# line 15
class CheckBox
REQUIRED_ATTRS = [:view, :object, :method, :choices, :item]
# Substitute the render method with this
def render
ids = item.send(Inflector.pluralize(method.to_s)).collect{|b| b.id}
name = "#{object}[#{method}][]"
choices.collect do |c|
view.check_box_tag(name,c[1],ids.include?(c[1])) + "#{c[0]}"
end.join("<br/>") + view.hidden_field_tag(name, STREAMLINED_SELECT_NONE)
end
Remeber also to include this new file (from lib/streamlined/components.rb) and change the line 123 in association.rb to call this new component:
result = Streamlined::Components::CheckBox.render do |s|
s.view = view
s.object = model_underscore
s.method = name
s.choices = choices
s.options = {:selected => selected_choices }
s.html_options = {:size => 5, :multiple => true}
s.item = item
end
Sandro
