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 125

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.thead 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.
          state = 'unsorted'
          order = 'desc'
          direction_class = ""

          if [column.to_s, @report.column_data_field(column)].include?(@options[:sort])
            state = "sorted"
            order = @options[:order] || 'asc'
            direction_class = "sorted-#{order}"
          end

          new_params = @options[:params].merge({'sort' => @report.column_data_field(column),'order' => (order == 'asc' ? 'desc' : 'asc')})
          x.th(:class => "columnTitle #{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
    end # x.thead
    
    x.tbody do
      @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
      
        if row[:meta][:group_header]
          x.thead do
            x.tr(row_attrib) do
              header = @report.column_title(row[:meta][:group_name]) + ' : ' + row[:meta][:group_value].to_s
              x.th(:colspan => @report.columns.size) { x << header }
            end
          end
        else 
          x.tr(row_attrib) do
            @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
                    data = col_data.respond_to?(:data) ? col_data.data : col_data
                    formatter.call(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 # columns
          end # x.tr
        end
        
      end # rows
      
    end # x.tbody
    
  end # x.table
  
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 133

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