Module: HtmlTables::DataTableHelper

Defined in:
lib/html_tables/data_table_helper.rb

Instance Method Summary collapse

Instance Method Details

#data_table_for(collection, options = {}) ⇒ Object 



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# File 'lib/html_tables/data_table_helper.rb', line 5

def data_table_for(collection, options = {})
  t = DataTable.new(self, collection, options)
  if block_given?
    yield t.object_to_yield
  else
    t.auto_generate_columns!
  end

  cls = %w(table table-striped table-bordered)
  cls << 'table-condensed' if options[:condensed]
  cls << options[:class] if options[:class]
  table_html_options = { class: cls }
  table_html_options.merge!(options[:html]) { |_, v1, v2| [v1, v2].flatten } if options[:html]
  content_tag(:table, table_html_options) do
    content_tag(:caption, options[:caption] || controller_name, class: ('hidden' unless options[:caption])) +
    content_tag(:colgroup) do
      b = ''.html_safe
      t.columns.each do |_, opts|
        col_opts = { }
        col_opts[:style] = "width: #{opts[:width]}" if opts[:width]
        b << content_tag(:col, col_opts) { }
      end
      b
    end +
    content_tag(:thead) do
      content_tag(:tr) do
        t.columns.map do |name, opts|
          header_opts = {}
          header_opts[:class] = 'check' if opts[:checkbox]
          header_opts[:header_title] = opts[:header_title] if opts[:header_title]
          content_tag(:th, t.header_for(name), header_opts)
        end.join.html_safe
      end
    end +
    content_tag(:tbody) do
      b = ''.html_safe
      rows = if options[:group]
        collection.group_by {|i| options[:group][:proc].call(i) }.each do |g, l|
          b << content_tag(:tr, class: 'group') do
            content_tag(:th, capture(g, &options[:group][:block]), colspan: t.columns.size)
          end
          render_data_rows(b, l, t)
        end
        collection
      else
        render_data_rows(b, collection, t)
      end
      if rows.size == 0 then
        b << content_tag(:tr, class: 'nodata') do
          content_tag(:td, colspan: t.columns.size) { t.nodata_message }
        end unless t.nodata_message.nil?
      end
      b
    end
  end
end

#extract_check_box_tag_options(opts) ⇒ Object 



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# File 'lib/html_tables/data_table_helper.rb', line 121

def extract_check_box_tag_options(opts)
  valid_options = [:disabled]
  opts.select { |k, _| valid_options.include?(k) }
end

#render_data_rows(b, collection, t) ⇒ Object 



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# File 'lib/html_tables/data_table_helper.rb', line 62

def render_data_rows(b, collection, t)
  collection.each do |item|
    b << content_tag(:tr, t.row_options_for(item)) do
      t.columns.map do |name, opts|
        render_td(item, name, opts)
      end.join.html_safe
    end
  end
end

#render_td(item, column, opts) ⇒ Object 



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# File 'lib/html_tables/data_table_helper.rb', line 72

def render_td(item, column, opts)
  td_options = {}

  if opts[:align] == :center
    td_options[:class] = 'c'
  end

  if opts[:title]
    td_options[:title] = if opts[:title].respond_to?(:call)
      opts[:title].call(item)
    else
      opts[:title].to_s
    end
  end

  v = if opts[:checkbox]
    checked = opts[:checked]
    checked = opts[:block].call(item) if opts[:block]
    check_box_tag "#{column}[]", item.public_send(opts.fetch(:value_method, :id)), checked, extract_check_box_tag_options(opts)
  elsif opts[:radio]
    radio_button_tag "#{column}[]", item.public_send(opts.fetch(:value_method, :id))
  elsif opts[:block]
    capture(item, &opts[:block])
  else
    tmp = item.public_send(column)
    tmp = item.public_send("#{column}_text") rescue tmp if tmp.is_a?(Symbol)
    tmp
  end

  if ::Rails.env.development? && v.is_a?(ActiveRecord::Base)
    btn = content_tag(:div, class: 'entity-shortcut') do
      link_to(url_for(v), class: 'btn btn-small') do
        content_tag(:i, nil, class: 'icon-share')
      end
    end rescue nil
  end

  v = if v.is_a?(Enumerable)
    v.inject(''.html_safe) { |b, i| b << ', ' unless b.blank?; b << i.format_for_output }
  else
    v.format_for_output
  end
  v = v.to_s unless v.nil? || v.is_a?(String)

  v = ''.html_safe << btn << v if btn

  content_tag(:td, v, td_options)
end