Class: Liquid::TableRow

Inherits:
Block show all
Defined in:
lib/liquid/htmltags.rb

Constant Summary collapse

Syntax = 
/(\w+)\s+in\s+(#{QuotedFragment}+)/

Constants inherited from Block

Block::ContentOfVariable, Block::FullToken, Block::IsTag, Block::IsVariable

Instance Attribute Summary

Attributes inherited from Tag

#nodelist

Instance Method Summary collapse

Methods inherited from Block

#block_delimiter, #block_name, #create_variable, #end_tag, #parse, #unknown_tag

Methods inherited from Tag

#name, #parse

Constructor Details

#initialize(tag_name, markup, tokens) ⇒ TableRow

Returns a new instance of TableRow.



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# File 'lib/liquid/htmltags.rb', line 5

def initialize(tag_name, markup, tokens)
  if markup =~ Syntax
    @variable_name = $1
    @collection_name = $2
    @attributes = {}
    markup.scan(TagAttributes) do |key, value|
      @attributes[key] = value
    end
  else
    raise SyntaxError.new("Syntax Error in 'table_row loop' - Valid syntax: table_row [item] in [collection] cols=3")
  end

  super
end

Instance Method Details

#render(context) ⇒ Object 



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# File 'lib/liquid/htmltags.rb', line 20

def render(context)
  collection = context[@collection_name] or return ''

  if @attributes['limit'] or @attributes['offset']
    limit = context[@attributes['limit']] || -1
    offset = context[@attributes['offset']] || 0
    collection = collection[offset.to_i..(limit.to_i + offset.to_i - 1)]
  end

  length = collection.length

  cols = context[@attributes['cols']].to_i

  row = 1
  col = 0

  result = "<tr class=\"row1\">\n"
  context.stack do

    collection.each_with_index do |item, index|
      context[@variable_name] = item
      context['tablerowloop'] = {
        'length'  => length,
        'index'   => index + 1,
        'index0'  => index,
        'col'     => col + 1,
        'col0'    => col,
        'index0'  => index,
        'rindex'  => length - index,
        'rindex0' => length - index -1,
        'first'   => (index == 0),
        'last'    => (index == length - 1),
        'col_first' => (col == 0),
        'col_last'  => (col == cols - 1)
      }


      col += 1

      result << "<td class=\"col#{col}\">" << render_all(@nodelist, context) << '</td>'

      if col == cols and not (index == length - 1)
        col  = 0
        row += 1
        result << "</tr>\n<tr class=\"row#{row}\">"
      end

    end
  end
  result << "</tr>\n"
  result
end