Class: Munger::Render::SortableHtml

Inherits:
Object
  • Object
show all
Defined in:
lib/munger/render/sortable_html.rb

Overview

Render a table that lets the user sort the columns

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(report, options = {}) ⇒ SortableHtml

options: :url => /some/url/for/link # link to put on column :params => :url_params # parameters from url if any :sort => ‘column’ # column that is currently sorted :order => ‘asc’ || ‘desc’ # order of the currently sorted field



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# File 'lib/munger/render/sortable_html.rb', line 14

def initialize(report, options = {})
  @report = report
  @options = options
  # default url and params options
  @options[:url] ||= '/'
  @options[:params] ||= {}
  set_classes(options[:classes])
end

Instance Attribute Details

#classes ⇒ Object (readonly)

Returns the value of attribute classes.



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# File 'lib/munger/render/sortable_html.rb', line 7

def classes
  @classes
end

#report ⇒ Object (readonly)

Returns the value of attribute report.



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# File 'lib/munger/render/sortable_html.rb', line 7

def report
  @report
end

Instance Method Details

#cycle(one, two) ⇒ Object 



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# File 'lib/munger/render/sortable_html.rb', line 110

def cycle(one, two)
  if @current == one
    @current = two
  else
    @current = one
  end
end

#render ⇒ Object 



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# File 'lib/munger/render/sortable_html.rb', line 29

def render
  x = Builder::XmlMarkup.new
  
  x.table(:class => @classes[:table]) do
    
    x.tr do
      @report.columns.each do |column|
        # TODO: Should be able to see if a column is 'sortable'
        # Assume all columns are sortable here - for now.
        sorted_state = 'unsorted'
        direction = 'asc'
        if [column.to_s, @report.column_data_field(column)].include?(@options[:sort])
          sorted_state = "sorted"
          direction = @options[:order] == 'asc' ? 'desc' : 'asc'
          direction_class = "sorted-#{direction}"
        end
        new_params = @options[:params].merge({'sort' => @report.column_data_field(column),'order' => direction})
        x.th(:class => "columnTitle #{sorted_state} #{direction_class}" ) do 
           # x << @report.column_title(column) 
           x << "<a href=\"#{@options[:url]}?#{create_querystring(new_params)}\">#{@report.column_title(column)}</a>"
         end
      end
    end
    
    @report.process_data.each do |row|
      
      classes = []
      classes << row[:meta][:row_styles]
      classes << 'group' + row[:meta][:group].to_s if row[:meta][:group]
      classes << cycle('even', 'odd')
      classes.compact!

      if row[:meta][:group_header]
        classes << 'groupHeader' + row[:meta][:group_header].to_s 
      end
      
      row_attrib = {}
      row_attrib = {:class => classes.join(' ')} if classes.size > 0
      
      x.tr(row_attrib) do
        if row[:meta][:group_header]
          header = @report.column_title(row[:meta][:group_name]) + ' : ' + row[:meta][:group_value].to_s
          x.th(:colspan => @report.columns.size) { x << header }
        else 
          @report.columns.each do |column|
          
            cell_attrib = {}
            if cst = row[:meta][:cell_styles]
              cst = Item.ensure(cst)
              if cell_styles = cst[column]
                cell_attrib = {:class => cell_styles.join(' ')}
              end
            end
            # TODO: Clean this up, I don't like it but it's working
            # output the cell
            # x.td(cell_attrib) { x << row[:data][column].to_s }
            x.td(cell_attrib) do
              formatter,*args = *@report.column_formatter(column)
              col_data = row[:data] #[column]
              if formatter && col_data[column]
                formatted = if formatter.class == Proc
                  formatter.call(col_data.data)
                elsif col_data[column].respond_to? formatter
                  col_data[column].send(formatter, *args)
                elsif
                  col_data[column].to_s
                end
              else
                formatted = col_data[column].to_s
              end
              x << formatted.to_s
            end
           
          end
        end
      end
    end
    
  end
end

#set_classes(options = nil) ⇒ Object 



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# File 'lib/munger/render/sortable_html.rb', line 23

def set_classes(options = nil)
  options = {} if !options
  default = {:table => 'report-table'}
  @classes = default.merge(options)
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/munger/render/sortable_html.rb', line 118

def valid?
  @report.is_a? Munger::Report
end