DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Desmond Murray	doloribus hic corporis	Microsoft	38.0
Dona Gutkowski	doloribus hic corporis	Microsoft	55.0
Dorthey Turner	doloribus hic corporis	Microsoft	38.0
Elenora Brakus	doloribus hic corporis	Microsoft	77.0
Eleonore Wisozk	doloribus hic corporis	Microsoft	79.0
Elida Zulauf	doloribus hic corporis	Microsoft	47.0
Elisa Wintheiser	doloribus hic corporis	Microsoft	78.0
Elise Waelchi	doloribus hic corporis	Microsoft	74.0
Elli Dietrich	doloribus hic corporis	Microsoft	73.0
Elsa Goodwin	doloribus hic corporis	Microsoft	92.0
Ethyl Ankunding	doloribus hic corporis	Microsoft	54.0
Evangelina Pfeffer	doloribus hic corporis	Microsoft	81.0
Felisa Jaskolski	doloribus hic corporis	Microsoft	71.0
Flavia Will	doloribus hic corporis	Microsoft	103.0
German Murphy	doloribus hic corporis	Microsoft	82.0
Gonzalo Blanda	doloribus hic corporis	Microsoft	68.0
Grace Kris	doloribus hic corporis	Microsoft	54.0
Gwendolyn Satterfield	doloribus hic corporis	Microsoft	69.0
Huong McKenzie	doloribus hic corporis	Microsoft	65.0
Imelda Heidenreich	doloribus hic corporis	Microsoft	74.0
Isidro McCullough	doloribus hic corporis	Microsoft	78.0
Jackson Kozey	doloribus hic corporis	Microsoft	69.0
Jamie Stehr	doloribus hic corporis	Microsoft	51.0
Jamison Hagenes	doloribus hic corporis	Microsoft	58.0
Jarvis Ryan	doloribus hic corporis	Microsoft	79.0

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>