a=[:x,:y,:z] # => [:x, :y, :z]
a.map{|a|} # => [nil, nil, nil]
a # => :z
...to know why this routes.rb example using with_options...
map.with_options :controller => 'users',
:action => 'show' do |map|
map.user_groups '/users/:id/groups', :section => 'groups'
map.user_history '/users/:id/history', :section => 'history'
end
...is bad.
Don't reuse the name of a local variable as a yielded local variable for use inside of a block, because the assignment will persist after the lifespan of the block. The routes example should look more like this...
map.with_options :controller => 'users',
:action => 'show' do |users|
users.user_groups '/users/:id/groups', :section => 'groups'
users.user_history '/users/:id/history', :section => 'history'
end
That is all.
Labels: block, routes, ruby, with_options
