DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Desmond Murray	saepe hic temporibus	Microsoft	54.0
Dona Gutkowski	saepe hic temporibus	Microsoft	77.0
Dorthey Turner	saepe hic temporibus	Microsoft	83.0
Elenora Brakus	saepe hic temporibus	Microsoft	67.0
Eleonore Wisozk	saepe hic temporibus	Microsoft	62.0
Elida Zulauf	saepe hic temporibus	Microsoft	72.0
Elisa Wintheiser	saepe hic temporibus	Microsoft	106.0
Elise Waelchi	saepe hic temporibus	Microsoft	35.0
Elli Dietrich	saepe hic temporibus	Microsoft	99.0
Elsa Goodwin	saepe hic temporibus	Microsoft	80.0
Ethyl Ankunding	saepe hic temporibus	Microsoft	55.0
Evangelina Pfeffer	saepe hic temporibus	Microsoft	38.0
Felisa Jaskolski	saepe hic temporibus	Microsoft	57.0
Flavia Will	saepe hic temporibus	Microsoft	94.0
German Murphy	saepe hic temporibus	Microsoft	47.0
Gonzalo Blanda	saepe hic temporibus	Microsoft	75.0
Grace Kris	saepe hic temporibus	Microsoft	40.0
Gwendolyn Satterfield	saepe hic temporibus	Microsoft	94.0
Huong McKenzie	saepe hic temporibus	Microsoft	51.0
Imelda Heidenreich	saepe hic temporibus	Microsoft	70.0
Isidro McCullough	saepe hic temporibus	Microsoft	47.0
Jackson Kozey	saepe hic temporibus	Microsoft	22.0
Jamie Stehr	saepe hic temporibus	Microsoft	66.0
Jamison Hagenes	saepe hic temporibus	Microsoft	49.0
Jarvis Ryan	saepe hic temporibus	Microsoft	103.0

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>