Class: Weaver::DynamicTable

Inherits:
Object
  • Object
show all
Defined in:
lib/weaver/element_types/dynamic_table.rb

Overview

Tables that dynamically load data

Instance Method Summary collapse

Constructor Details

#initialize(page, anchors, url, options = {}, &block) ⇒ DynamicTable

Returns a new instance of DynamicTable.



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# File 'lib/weaver/element_types/dynamic_table.rb', line 7

def initialize(page, anchors, url, options = {}, &block)
  @page = page
  @anchors = anchors
  @url = url
  @options = options
  @columns = nil
  @query_object = nil

  instance_eval(&block) if block

  @options[:id] ||= @page.create_anchor 'dyn_table'
  @table_name = @options[:id]
  @head_name = "#{@table_name}_head"
  @body_name = "#{@table_name}_body"
end

Instance Method Details

#column(name, options = {}, &block) ⇒ Object 



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# File 'lib/weaver/element_types/dynamic_table.rb', line 23

def column(name, options = {}, &block)
  @columns = [] if @columns.nil?

  title = options[:title] || name
  format = nil
  transform = nil

  if options[:icon]
    elem = Elements.new(@page, @anchors)
    elem.instance_eval do
      icon options[:icon]
      text " #{title}"
    end
    title = elem.generate
  end

  if block
    elem = DynamicTableCell.new(@page, @anchors)
    elem.instance_eval(&block)
    format = elem.generate
    if elem.transform_script
      func_name = @page.create_anchor 'transform'
      @page.write_script_once <<~SCRIPT
        document.transform_#{func_name} = function (input)
        {
        #{elem.transform_script}
        }
      SCRIPT

      transform = func_name
     end
  end

  @columns << { name: name, title: title, format: format, transform: transform }
end

#generate_script ⇒ Object 



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# File 'lib/weaver/element_types/dynamic_table.rb', line 92

def generate_script
  query_object_declaration = '{}'
  query_string = ''

  if @query_object
    query_object_declaration = @query_object.generate
    query_string = '+ "?" + $.param(query_object)'
  end

  member_expr = ''
  member_expr = ".#{@options[:member]}" if @options[:member]

  <<-DATATABLE_SCRIPT

	function refresh_table_#{@table_name}()
	{
		var query_object = #{query_object_declaration};

		$.get( "#{@url}" #{query_string}, function( returned_data )
		{
			var data = returned_data#{member_expr};
			var data_object = {};
			if (data !== null && typeof data === 'object')
			{
data_object = data;
			}
			else
			{
data_object = JSON.parse(data);
			}

			var head = $("##{@head_name}")
			var body = $("##{@body_name}")

			if($.isPlainObject(data_object))
			{
for (var key in data_object)
{
	var row = $('<tr>');
	row.append($('<td>').text(key));
	row.append($('<td>').text(data_object[key]));
	body.append(row);
}
			}

			if ($.isArray(data_object))
			{

var columnData = JSON.parse(#{@columns.to_json.inspect});
var columns = {};
var columnTitles = [];
head.empty();
if (#{@columns.nil?})
{
	// Set up columns
	for (var index in data_object)
	{
		for (var key in data_object[index])
		{
			columns[key] = Object.keys(columns).length;
		}
	}
	for (var key in columns)
	{
		columnTitles.push(key);
	}
}
else
{
	for (var key in columnData)
	{
		columns[columnData[key]["name"]] = Object.keys(columns).length;
		columnTitles.push(columnData[key]["title"]);
	}
}

var row = $('<tr>');
for (var key in columnTitles)
{
	var columnTitle = $('<th>').html(columnTitles[key]);
	row.append(columnTitle);
}
head.append(row);

for (var index in data_object)
{
	var row = $('<tr>');
	for (var columnIndex = 0; columnIndex < Object.keys(columns).length; columnIndex++) {
		var cell_data = data_object[index][ Object.keys(columns)[columnIndex] ];

		if (columnData && columnData[columnIndex]["format"])
		{
			var format = columnData[columnIndex]["format"];
			var matches = format.match(/###.+?###/g)

			var result = format;
			for (var matchIndex in matches)
			{
				var member_name = matches[matchIndex].match(/[^#]+/)[0];
				result = result.replaceAll(matches[matchIndex], data_object[index][member_name]);
			}

			if (columnData && columnData[columnIndex]["transform"])
			{
				result = document["transform_" + columnData[columnIndex]["transform"]](result);
			}
			row.append($('<td>').html( result ).data("object", data_object[index]) );
		}
		else
		{
			if (columnData && columnData[columnIndex]["transform"])
			{
				cell_data = document["transform_" + columnData[columnIndex]["transform"]](cell_data);
			}
			row.append($('<td>').text( cell_data ).data("object", data_object[index]) );
		}
	}
	body.append(row);
}
			}

		});
	}

	refresh_table_#{@table_name}();

  DATATABLE_SCRIPT
end

#generate_table ⇒ Object 



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# File 'lib/weaver/element_types/dynamic_table.rb', line 59

def generate_table
  table_name = @table_name
  head_name = @head_name
  body_name = @body_name
  options = @options

  columns = @columns || [{ title: 'Key' }, { title: 'Value' }]

  elem = Elements.new(@page, @anchors)
  elem.instance_eval do
    table options do
      thead id: head_name do
        columns.each do |column, _|
          if column.is_a? Hash
            th column[:title].to_s
          else
            th column.to_s
          end
        end
      end

      tbody id: body_name do
      end
    end
  end

  elem.generate
end

#query(&block) ⇒ Object 



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# File 'lib/weaver/element_types/dynamic_table.rb', line 88

def query(&block)
  @query_object = JavaScriptObject.new(&block)
end