DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Desmond Murray	saepe hic temporibus	Microsoft	63.0
Dona Gutkowski	saepe hic temporibus	Microsoft	50.0
Dorthey Turner	saepe hic temporibus	Microsoft	57.0
Elenora Brakus	saepe hic temporibus	Microsoft	60.0
Eleonore Wisozk	saepe hic temporibus	Microsoft	86.0
Elida Zulauf	saepe hic temporibus	Microsoft	58.0
Elisa Wintheiser	saepe hic temporibus	Microsoft	91.0
Elise Waelchi	saepe hic temporibus	Microsoft	100.0
Elli Dietrich	saepe hic temporibus	Microsoft	27.0
Elsa Goodwin	saepe hic temporibus	Microsoft	48.0
Ethyl Ankunding	saepe hic temporibus	Microsoft	63.0
Evangelina Pfeffer	saepe hic temporibus	Microsoft	69.0
Felisa Jaskolski	saepe hic temporibus	Microsoft	55.0
Flavia Will	saepe hic temporibus	Microsoft	67.0
German Murphy	saepe hic temporibus	Microsoft	80.0
Gonzalo Blanda	saepe hic temporibus	Microsoft	64.0
Grace Kris	saepe hic temporibus	Microsoft	33.0
Gwendolyn Satterfield	saepe hic temporibus	Microsoft	48.0
Huong McKenzie	saepe hic temporibus	Microsoft	25.0
Imelda Heidenreich	saepe hic temporibus	Microsoft	45.0
Isidro McCullough	saepe hic temporibus	Microsoft	57.0
Jackson Kozey	saepe hic temporibus	Microsoft	71.0
Jamie Stehr	saepe hic temporibus	Microsoft	60.0
Jamison Hagenes	saepe hic temporibus	Microsoft	45.0
Jarvis Ryan	saepe hic temporibus	Microsoft	77.0

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>