DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Desmond Murray	doloribus hic corporis	Microsoft	52.0
Dona Gutkowski	doloribus hic corporis	Microsoft	113.0
Dorthey Turner	doloribus hic corporis	Microsoft	69.0
Elenora Brakus	doloribus hic corporis	Microsoft	50.0
Eleonore Wisozk	doloribus hic corporis	Microsoft	83.0
Elida Zulauf	doloribus hic corporis	Microsoft	79.0
Elisa Wintheiser	doloribus hic corporis	Microsoft	75.0
Elise Waelchi	doloribus hic corporis	Microsoft	51.0
Elli Dietrich	doloribus hic corporis	Microsoft	57.0
Elsa Goodwin	doloribus hic corporis	Microsoft	42.0
Ethyl Ankunding	doloribus hic corporis	Microsoft	41.0
Evangelina Pfeffer	doloribus hic corporis	Microsoft	77.0
Felisa Jaskolski	doloribus hic corporis	Microsoft	67.0
Flavia Will	doloribus hic corporis	Microsoft	28.0
German Murphy	doloribus hic corporis	Microsoft	45.0
Gonzalo Blanda	doloribus hic corporis	Microsoft	27.0
Grace Kris	doloribus hic corporis	Microsoft	71.0
Gwendolyn Satterfield	doloribus hic corporis	Microsoft	61.0
Huong McKenzie	doloribus hic corporis	Microsoft	67.0
Imelda Heidenreich	doloribus hic corporis	Microsoft	43.0
Isidro McCullough	doloribus hic corporis	Microsoft	93.0
Jackson Kozey	doloribus hic corporis	Microsoft	51.0
Jamie Stehr	doloribus hic corporis	Microsoft	69.0
Jamison Hagenes	doloribus hic corporis	Microsoft	79.0
Jarvis Ryan	doloribus hic corporis	Microsoft	50.0

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>