Module: ContextualLinkHelpers

Included in:
ListLinkHelpers
Defined in:
app/helpers/contextual_link_helpers.rb

Instance Method Summary collapse

Instance Method Details

#action_to_icon(action) ⇒ Object

CRUD helpers



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# File 'app/helpers/contextual_link_helpers.rb', line 3

def action_to_icon(action)
  case action.to_s
  when 'new'
    "plus"
  when 'show'
    "eye-open"
  when 'edit'
    "edit"
  when 'delete', 'destroy'
    "trash"
  when "index", "list"
    "list-alt"
  when "update"
    "refresh"
  when "copy"
    "repeat"
  else
    action
  end
end

#contextual_link_to(action, resource_or_model = nil, link_options = {}) ⇒ Object 



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# File 'app/helpers/contextual_link_helpers.rb', line 51

def contextual_link_to(action, resource_or_model = nil, link_options = {})
  # We don't want to change the passed in link_options
  options = link_options.dup

  # Handle both symbols and strings
  action = action.to_sym

  # Resource and Model setup
  # Use controller name to guess resource or model if not specified
  case action
  when :new, :index
    default_model = controller_name.singularize.camelize.constantize
    model = resource_or_model || default_model
    explicit_resource_or_model = default_model != model
  when :show, :edit, :delete, :destroy
    default_resource = instance_variable_get("@#{controller_name.singularize}")
    resource = resource_or_model || default_resource
    model = resource.class
    explicit_resource_or_model = default_resource != resource
  end
  model_name = model.to_s.underscore

  unless resource_or_model.is_a?(String)
    # No link if CanCan is used and current user isn't authorized to call this action
    return if respond_to?(:cannot?) and cannot?(action.to_sym, model)
  end

  # Option generation
  case action
  when :delete, :destroy
    options.merge!(:confirm => t_confirm_delete(resource), :method => :delete)
  end

  begin
    if resource_or_model.is_a?(String)
      path = resource_or_model
    else
      # Path generation
      case action
      when :index
        if explicit_resource_or_model
          path = polymorphic_path(model)
        else
          path = url_for(:action => nil)
        end
      when :delete, :destroy
        if explicit_resource_or_model
          path = polymorphic_path(resource)
        else
          path = url_for(:action => :destroy)
        end
      else
        if explicit_resource_or_model
          path = polymorphic_path(resource_or_model, :action => action)
        else
          path = url_for(:action => action)
        end
      end
    end

    return icon_link_to(action, path, options)

  rescue ActionController::UrlGenerationError
    # This handles cases where we did exclude crud actions in the routing map.
  end
end

#contextual_links(action = nil, resource_or_model = nil, options = {}, &block) ⇒ Object 



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# File 'app/helpers/contextual_link_helpers.rb', line 142

def contextual_links(action = nil, resource_or_model = nil, options = {}, &block)
  content_tag('div', :class => I18nRailsHelpers.contextual_class) do
    content = contextual_links_for(action, resource_or_model, options)
    if block_given?
      additional_content = capture(&block)
      content += ("\n" + additional_content).html_safe unless additional_content.nil?
    end
    content
  end
end

#contextual_links_for(action = nil, resource_or_model = nil, options = {}) ⇒ Object 



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# File 'app/helpers/contextual_link_helpers.rb', line 118

def contextual_links_for(action = nil, resource_or_model = nil, options = {})
  # Use current action if not specified
  action ||= action_name

  # Handle both symbols and strings
  action = action.to_sym

  actions = []
  case action
  when :new, :create
    actions << :index
  when :show
    actions += [:edit, :destroy, :index]
  when :edit, :update
    actions += [:show, :destroy, :index]
  when :index
    actions << :new
  end

  links = actions.map{|link_for| contextual_link_to(link_for, resource_or_model, options)}

  return links.join("\n").html_safe
end

#icon_link_to(action, url = nil, options = {}) ⇒ Object 



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# File 'app/helpers/contextual_link_helpers.rb', line 24

def icon_link_to(action, url = nil, options = {})
  classes = []
  if class_options = options.delete(:class)
    classes << class_options.split(' ')
  end

  classes << I18nRailsHelpers.contextual_link_class

  if action.is_a? Symbol
    url ||= {:action => action}
    title = t_action(action)
  else
    title = action
  end

  icon = options.delete(:icon)
  icon ||= action

  type = options.delete(:type)
  classes << "btn-#{type}" unless type.blank?

  options.merge!(:class => classes.join(" "))
  link_to(url_for(url), options) do
    boot_icon(action_to_icon(icon)) + " " + title
  end
end