DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Desmond Murray	saepe hic temporibus	Microsoft	54.0
Dona Gutkowski	saepe hic temporibus	Microsoft	50.0
Dorthey Turner	saepe hic temporibus	Microsoft	66.0
Elenora Brakus	saepe hic temporibus	Microsoft	56.0
Eleonore Wisozk	saepe hic temporibus	Microsoft	74.0
Elida Zulauf	saepe hic temporibus	Microsoft	92.0
Elisa Wintheiser	saepe hic temporibus	Microsoft	57.0
Elise Waelchi	saepe hic temporibus	Microsoft	37.0
Elli Dietrich	saepe hic temporibus	Microsoft	50.0
Elsa Goodwin	saepe hic temporibus	Microsoft	42.0
Ethyl Ankunding	saepe hic temporibus	Microsoft	86.0
Evangelina Pfeffer	saepe hic temporibus	Microsoft	66.0
Felisa Jaskolski	saepe hic temporibus	Microsoft	75.0
Flavia Will	saepe hic temporibus	Microsoft	52.0
German Murphy	saepe hic temporibus	Microsoft	83.0
Gonzalo Blanda	saepe hic temporibus	Microsoft	39.0
Grace Kris	saepe hic temporibus	Microsoft	88.0
Gwendolyn Satterfield	saepe hic temporibus	Microsoft	69.0
Huong McKenzie	saepe hic temporibus	Microsoft	77.0
Imelda Heidenreich	saepe hic temporibus	Microsoft	55.0
Isidro McCullough	saepe hic temporibus	Microsoft	49.0
Jackson Kozey	saepe hic temporibus	Microsoft	59.0
Jamie Stehr	saepe hic temporibus	Microsoft	74.0
Jamison Hagenes	saepe hic temporibus	Microsoft	53.0
Jarvis Ryan	saepe hic temporibus	Microsoft	84.0

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>