DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Desmond Murray	saepe hic temporibus	Microsoft	101.0
Dona Gutkowski	saepe hic temporibus	Microsoft	54.0
Dorthey Turner	saepe hic temporibus	Microsoft	64.0
Elenora Brakus	saepe hic temporibus	Microsoft	112.0
Eleonore Wisozk	saepe hic temporibus	Microsoft	51.0
Elida Zulauf	saepe hic temporibus	Microsoft	74.0
Elisa Wintheiser	saepe hic temporibus	Microsoft	28.0
Elise Waelchi	saepe hic temporibus	Microsoft	59.0
Elli Dietrich	saepe hic temporibus	Microsoft	31.0
Elsa Goodwin	saepe hic temporibus	Microsoft	106.0
Ethyl Ankunding	saepe hic temporibus	Microsoft	65.0
Evangelina Pfeffer	saepe hic temporibus	Microsoft	90.0
Felisa Jaskolski	saepe hic temporibus	Microsoft	62.0
Flavia Will	saepe hic temporibus	Microsoft	69.0
German Murphy	saepe hic temporibus	Microsoft	104.0
Gonzalo Blanda	saepe hic temporibus	Microsoft	58.0
Grace Kris	saepe hic temporibus	Microsoft	59.0
Gwendolyn Satterfield	saepe hic temporibus	Microsoft	47.0
Huong McKenzie	saepe hic temporibus	Microsoft	45.0
Imelda Heidenreich	saepe hic temporibus	Microsoft	72.0
Isidro McCullough	saepe hic temporibus	Microsoft	60.0
Jackson Kozey	saepe hic temporibus	Microsoft	59.0
Jamie Stehr	saepe hic temporibus	Microsoft	76.0
Jamison Hagenes	saepe hic temporibus	Microsoft	59.0
Jarvis Ryan	saepe hic temporibus	Microsoft	71.0

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>