DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Desmond Murray	quibusdam sed sit	Apple	88.0
Dona Gutkowski	quibusdam sed sit	Apple	59.0
Dorthey Turner	quibusdam sed sit	Apple	116.0
Elenora Brakus	quibusdam sed sit	Apple	71.0
Eleonore Wisozk	quibusdam sed sit	Apple	52.0
Elida Zulauf	quibusdam sed sit	Apple	50.0
Elisa Wintheiser	quibusdam sed sit	Apple	65.0
Elise Waelchi	quibusdam sed sit	Apple	66.0
Elli Dietrich	quibusdam sed sit	Apple	58.0
Elsa Goodwin	quibusdam sed sit	Apple	46.0
Ethyl Ankunding	quibusdam sed sit	Apple	92.0
Evangelina Pfeffer	quibusdam sed sit	Apple	65.0
Felisa Jaskolski	quibusdam sed sit	Apple	54.0
Flavia Will	quibusdam sed sit	Apple	70.0
German Murphy	quibusdam sed sit	Apple	61.0
Gonzalo Blanda	quibusdam sed sit	Apple	38.0
Grace Kris	quibusdam sed sit	Apple	37.0
Gwendolyn Satterfield	quibusdam sed sit	Apple	92.0
Huong McKenzie	quibusdam sed sit	Apple	49.0
Imelda Heidenreich	quibusdam sed sit	Apple	47.0
Isidro McCullough	quibusdam sed sit	Apple	61.0
Jackson Kozey	quibusdam sed sit	Apple	43.0
Jamie Stehr	quibusdam sed sit	Apple	48.0
Jamison Hagenes	quibusdam sed sit	Apple	34.0
Jarvis Ryan	quibusdam sed sit	Apple	55.0

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>