Class: ActionView::Base

Inherits:
Object
  • Object
show all
Includes:
Inflector
Defined in:
app/controllers/rails_ext.rb

Instance Method Summary collapse

Instance Method Details



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# File 'app/controllers/rails_ext.rb', line 97

def breadcrumbs
  link_to_unless_current("Dashboard", :controller => "project", :action => "index")
end

#calendar(options) ⇒ Object

Renders a Calendar widget The view (or layout) must load the jscalendar and dateFormat javascripts Note that the value is posted back as a ymdHMS string

  • :name - The name of the (hidden) field containing the date

  • :time - The time to initialise the widget with

  • :editable - Whether or not to make the widget editable



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# File 'app/controllers/rails_ext.rb', line 239

def calendar(options)
  t = options[:time]
  name = options[:name]
  js_function = "change" + name.gsub(/:/, '_').gsub(/@/, '_').gsub(/\[/, '_').gsub(/\]/, '_')
  js_format = "format('%yyyy%%mm%%dd%%hh%%nn%%ss%')"
  js_date = "new Date(#{t.year}, #{t.month - 1}, #{t.day}, #{t.hour}, #{t.min}, #{t.sec})"
  <<EOF
<input type="hidden" id="#{options[:name]}" name="#{options[:name]}" value="">
<div id="#{options[:name]}_calendar"></div>
<script type="text/javascript">
  document.getElementById('#{options[:name]}').value = #{js_date}.#{js_format}
  function #{js_function}(calendar) {
    if (calendar.dateClicked) {
      document.getElementById('#{options[:name]}').value = calendar.date.#{js_format};
}
  };
  Calendar.setup(
    {
      flat         : "#{options[:name]}_calendar", // ID of the parent element
      flatCallback : #{js_function},           // our callback function
  showsTime    : true,
  date         : #{js_date}
    }
  );
</script>
EOF
end

#define_selected!(array) ⇒ Object

defines selected? => false on each object that doesn’t already have selected? defined.



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# File 'app/controllers/rails_ext.rb', line 177

def define_selected!(array)
  array.each do |o|
    unless(o.respond_to?(:selected?))
      def o.selected?
        false
      end
    end
  end
end

#render_object(o, collection_name, edit) ⇒ Object

Creates a table rendering o‘s attributes. Uses a default rendering, but a custom template will be used if there is a “_<underscored_class_name>.rhtml” under the project directory



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# File 'app/controllers/rails_ext.rb', line 191

def render_object(o, collection_name, edit)
  underscored_name = underscore(demodulize(o.class.name))
  template = File.expand_path(File.dirname(__FILE__) + "/../views/project/_#{underscored_name}.rhtml")
  if(File.exist?(template))
    render_partial(underscored_name, o)
  else
    r = "<table>\n"
    o.instance_variables.each do |attr_name|
      attr_anns = o.class.send(attr_name[1..-1])
      if(attr_anns && attr_anns[:description])
        # Only render attributes with :description annotations
        attr_value = o.instance_variable_get(attr_name)
        r << "  <tr>\n"
        r << "    <td width='25%'>#{attr_anns[:description]}</td>\n"
        html_value = text_or_input(edit, :name => "#{collection_name}[#{o.class.name}][#{attr_name}]", :value => attr_value)
        r << "    <td width='75%'>#{html_value}</td>\n"
        r << "  </tr>\n"
      end
    end
    # workaround for RoR bug. 'hash' form params must have at least one value.
    r << "<tr><td></td><td><input type='hidden' name ='#{collection_name}[#{o.class.name}][__dummy]'></td></tr>" if o.instance_variables.empty?

    r << "</table>"
    r
  end
end

#select_pane(description, name, array) ⇒ Object

Renders a pane (div) with a combo (select) that will Show one of the objects in the array (which are rendered with render_object). If one of the objects in the array respond to selected? and return true, it is preselected in the combo.



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# File 'app/controllers/rails_ext.rb', line 163

def select_pane(description, name, array)
  define_selected!(array)
  $pane_name = name
  $pane_description = description
  def array.name
    $pane_name
  end
  def array.description
    $pane_description
  end
  render_partial("select_pane", array)
end

#tab_pane(name, array) ⇒ Object

Renders a tab pane where each tab contains rendered objects



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# File 'app/controllers/rails_ext.rb', line 150

def tab_pane(name, array)
  define_selected!(array)
  $pane_name = name
  def array.name
    $pane_name
  end
  render_partial("tab_pane", array)
end

#text_or_checkbox(options) ⇒ Object

Renders an editable or read-only element describing a boolean value.

Options:

  • :name - The name of the variable/attribute.

  • :value - True or False

  • :editable - True or False



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# File 'app/controllers/rails_ext.rb', line 119

def text_or_checkbox(options)
  value = options.delete(:value)
  if(options.delete(:editable))
    options[:type] = "checkbox"
    options[:value] = "true"
    options[:checked] = "true" if value
    tag("input", options)
  else
    value ? "on" : "off"
  end
end

#text_or_input(input, options) ⇒ Object

Renders plain text (if input is true) or a text field if not.



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# File 'app/controllers/rails_ext.rb', line 102

def text_or_input(input, options)
  if(input)
    options[:class] = "setting-input" unless options[:class]
    tag("input", options)
  elsif(options[:value] =~ /^http?:\/\//)
    content_tag("a", options[:value], "href" => options[:value] ? options[:value] : "")
  else
    options[:value] ? options[:value] : ""
  end
end

#text_or_select(input, options) ⇒ Object 



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# File 'app/controllers/rails_ext.rb', line 131

def text_or_select(input, options)
  values = options.delete(:values)
  if(input)
    #options[:class] = "setting-input" unless options[:class]
    
    option_tags = "\n"
    values.each do |value|
      option_attrs = {:value => value.class.name}
      option_attrs[:selected] = "true" if value.selected?
      option_tag = content_tag("option", value.name, option_attrs)
      option_tags << option_tag << "\n"
    end
    content_tag("select", option_tags, options)
  else
    values.find {|v| v.selected?}.name
  end
end

#tip(options) ⇒ Object

Creates an image with a tooltip that will show on mouseover.

Options:

  • :txt - The text to put in the tooltip. Can be HTML.

  • :img - The image to display on the page. Defaults to ‘/images/16x16/about.png’



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# File 'app/controllers/rails_ext.rb', line 223

def tip(options)
  tip = options.delete(:txt)
  options[:src] = options.delete(:img) || "/images/16x16/about.png"
  options[:onmouseover] = "Tooltip.show(event,#{tip})"
  options[:onmouseout] = "Tooltip.hide()"

  tag("img", options)
end