DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	saepe hic temporibus	Microsoft	57.0
Raquel Runolfsson	saepe hic temporibus	Microsoft	65.0
Rebecca Rempel	saepe hic temporibus	Microsoft	76.0
Reinaldo Heidenreich	saepe hic temporibus	Microsoft	73.0
Rossana Schneider	saepe hic temporibus	Microsoft	93.0
Royce Spencer	saepe hic temporibus	Microsoft	66.0
Salley Kilback	saepe hic temporibus	Microsoft	72.0
Shane Glover	saepe hic temporibus	Microsoft	58.0
Shannon Botsford	saepe hic temporibus	Microsoft	95.0
Shara Labadie	saepe hic temporibus	Microsoft	80.0
Sixta Bashirian	saepe hic temporibus	Microsoft	75.0
Sylvester Hane	saepe hic temporibus	Microsoft	44.0
Tamera Bogan	saepe hic temporibus	Microsoft	24.0
Tami Gibson	saepe hic temporibus	Microsoft	93.0
Tamika Cronin	saepe hic temporibus	Microsoft	42.0
Terisa Ruecker	saepe hic temporibus	Microsoft	40.0
Tess Nikolaus	saepe hic temporibus	Microsoft	63.0
Thaddeus Stanton	saepe hic temporibus	Microsoft	60.0
Treena Wolf	saepe hic temporibus	Microsoft	91.0
Verla Friesen	saepe hic temporibus	Microsoft	48.0
Vernia Dietrich	saepe hic temporibus	Microsoft	68.0
Vivien Murray	saepe hic temporibus	Microsoft	80.0
Wen Daniel	saepe hic temporibus	Microsoft	69.0
Wiley Wuckert	saepe hic temporibus	Microsoft	76.0
Winfred Franecki	saepe hic temporibus	Microsoft	82.0

Grid:

class TimeEntriesGrid < BaseGrid

  #
  # Scope
  #

  scope do
    User.select(
      "users.name, projects.name as project_name, accounts.name as account_name, sum(time_entries.hours) as report_hours"
    ).joins(:time_entries => {:project => :account}).group("projects.name", "users.name", "accounts.name").order("users.name")

  end


  #
  # Filters
  #

  filter(:project_id, :enum,
    :select => lambda {Project.all.map {|p| [p.name, p.id]}},
    :multiple => true,
    :include_blank => false
  ) do |value|
    self.where(:time_entries => {:project_id => value})
  end


  filter(:year, :enum,
         :select => lambda { TimeEntry.all.any? ? (TimeEntry.minimum(:date).year..TimeEntry.maximum(:date).year) : []},
    :include_blank => false,
    :default => lambda {Date.today.year}
  ) do |value|
    self.where(["extract(year from time_entries.date) = ?", value.to_i])
  end

  filter(:month, :enum,
         :select => Date::MONTHNAMES[1..12].enum_for(:each_with_index).collect {|name, index| [name, index + 1]},
         :include_blank => false,
         :default => lambda {Date.today.month}
        ) do |value|

    self.where(["extract(month from time_entries.date) = ?", value.to_i])
  end


  #
  # Columns
  #

  column(:user_name, :header => "Developer", :order => "users.name") do
    self.name
  end
  column(:project_name, :header => "Project", :order => "projects.name")
  column(
    :account_name,
    :header => "Company",
    :order => "accounts.name",
  ) do |model|
    format(model.account_name) do
      render :partial => "time_entries/company", :locals => {:model => model}
    end
  end

  column(:report_hours, order: "sum(time_entries.hours)")

end

Controller:

class TimeEntriesController < ApplicationController

  def index
    @time_entries_grid = TimeEntriesGrid.new(params[:g]) do |scope|
      scope.page(params[:page] )
    end
  end
end

View:


<h3>Time Entries Grid</h3>


<div class="left">
  <%= datagrid_form_for @time_entries_grid, url: time_entries_path %>
  <br/>

  <%= datagrid_table(@time_entries_grid) %>
  <%= paginate @time_entries_grid.assets %>

</div>

<div class="right">
  <%= render :partial => "shared/source", :object => @time_entries_grid %>
</div>