Module: UsersHelper

Defined in:
lib/branston/app/helpers/users_helper.rb

Instance Method Summary collapse

Instance Method Details

#if_authorized?(action, resource, &block) ⇒ Boolean

Use this to wrap view elements that the user can’t access. !! Note: this is an interface, not security feature !! You need to do all access control at the controller level.

Example: <%= if_authorized?(:index, User) do link_to(‘List all users’, users_path) end %> | <%= if_authorized?(:edit, @user) do link_to(‘Edit this user’, edit_user_path) end %> | <%= if_authorized?(:destroy, @user) do link_to ‘Destroy’, @user, :confirm => ‘Are you sure?’, :method => :delete end %>

Returns:

  • (Boolean) 


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# File 'lib/branston/app/helpers/users_helper.rb', line 14

def if_authorized?(action, resource, &block)
  if authorized?(action, resource)
    yield action, resource
  end
end

#link_to_current_user(options = {}) ⇒ Object

Link to the current user’s page (using link_to_user) or to the login page (using link_to_login_with_IP).



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# File 'lib/branston/app/helpers/users_helper.rb', line 82

def link_to_current_user(options={})
  if current_user
    link_to_user current_user, options
  else
    content_text = options.delete(:content_text) || 'not signed in'
    # kill ignored options from link_to_user
    [:content_method, :title_method].each{|opt| options.delete(opt)} 
     content_text, options
  end
end

#link_to_login_with_IP(content_text = nil, options = {}) ⇒ Object

Link to login page using remote ip address as link content

The :title (and thus, tooltip) is set to the IP address

Examples:


# => <a href="/login" title="169.69.69.69">169.69.69.69</a>

 :content_text => 'not signed in'
# => <a href="/login" title="169.69.69.69">not signed in</a>



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# File 'lib/branston/app/helpers/users_helper.rb', line 67

def  content_text=nil, options={}
  ip_addr           = request.remote_ip
  content_text    ||= ip_addr
  options.reverse_merge! :title => ip_addr
  if tag = options.delete(:tag)
    content_tag tag, h(content_text), options
  else
    link_to h(content_text), , options
  end
end

#link_to_user(user, options = {}) ⇒ Object

Link to user’s page (‘users/1’)

By default, their login is used as link text and link title (tooltip)

Takes options

  • :content_text => ‘Content text in place of user.login’, escaped with the standard h() function.

  • :content_method => :user_instance_method_to_call_for_content_text

  • :title_method => :user_instance_method_to_call_for_title_attribute

  • as well as link_to()‘s standard options

Examples:

 link_to_user @user
 # => <a href="/users/3" title="barmy">barmy</a>

 # if you've added a .name attribute:
content_tag :span, :class => :vcard do
  (link_to_user user, :class => 'fn n', :title_method => :login, :content_method => :name) +
        ': ' + (content_tag :span, user.email, :class => 'email')
 end
 # => <span class="vcard"><a href="/users/3" title="barmy" class="fn n">Cyril Fotheringay-Phipps</a>: <span class="email">[email protected]</span></span>

 link_to_user @user, :content_text => 'Your user page'
 # => <a href="/users/3" title="barmy" class="nickname">Your user page</a>



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# File 'lib/branston/app/helpers/users_helper.rb', line 46

def link_to_user(user, options={})
  raise "Invalid user" unless user
  options.reverse_merge! :content_method => :login, :title_method => :login, :class => :nickname
  content_text      = options.delete(:content_text)
  content_text    ||= user.send(options.delete(:content_method))
  options[:title] ||= user.send(options.delete(:title_method))
  link_to h(content_text), user_path(user), options
end