DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Desmond Murray	saepe hic temporibus	Microsoft	85.0
Dona Gutkowski	saepe hic temporibus	Microsoft	37.0
Dorthey Turner	saepe hic temporibus	Microsoft	47.0
Elenora Brakus	saepe hic temporibus	Microsoft	60.0
Eleonore Wisozk	saepe hic temporibus	Microsoft	52.0
Elida Zulauf	saepe hic temporibus	Microsoft	36.0
Elisa Wintheiser	saepe hic temporibus	Microsoft	54.0
Elise Waelchi	saepe hic temporibus	Microsoft	19.0
Elli Dietrich	saepe hic temporibus	Microsoft	88.0
Elsa Goodwin	saepe hic temporibus	Microsoft	46.0
Ethyl Ankunding	saepe hic temporibus	Microsoft	74.0
Evangelina Pfeffer	saepe hic temporibus	Microsoft	62.0
Felisa Jaskolski	saepe hic temporibus	Microsoft	51.0
Flavia Will	saepe hic temporibus	Microsoft	60.0
German Murphy	saepe hic temporibus	Microsoft	85.0
Gonzalo Blanda	saepe hic temporibus	Microsoft	68.0
Grace Kris	saepe hic temporibus	Microsoft	87.0
Gwendolyn Satterfield	saepe hic temporibus	Microsoft	48.0
Huong McKenzie	saepe hic temporibus	Microsoft	53.0
Imelda Heidenreich	saepe hic temporibus	Microsoft	64.0
Isidro McCullough	saepe hic temporibus	Microsoft	89.0
Jackson Kozey	saepe hic temporibus	Microsoft	73.0
Jamie Stehr	saepe hic temporibus	Microsoft	77.0
Jamison Hagenes	saepe hic temporibus	Microsoft	60.0
Jarvis Ryan	saepe hic temporibus	Microsoft	66.0

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>