DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Desmond Murray	doloribus hic corporis	Microsoft	64.0
Dona Gutkowski	doloribus hic corporis	Microsoft	31.0
Dorthey Turner	doloribus hic corporis	Microsoft	72.0
Elenora Brakus	doloribus hic corporis	Microsoft	61.0
Eleonore Wisozk	doloribus hic corporis	Microsoft	57.0
Elida Zulauf	doloribus hic corporis	Microsoft	83.0
Elisa Wintheiser	doloribus hic corporis	Microsoft	75.0
Elise Waelchi	doloribus hic corporis	Microsoft	31.0
Elli Dietrich	doloribus hic corporis	Microsoft	68.0
Elsa Goodwin	doloribus hic corporis	Microsoft	62.0
Ethyl Ankunding	doloribus hic corporis	Microsoft	69.0
Evangelina Pfeffer	doloribus hic corporis	Microsoft	35.0
Felisa Jaskolski	doloribus hic corporis	Microsoft	31.0
Flavia Will	doloribus hic corporis	Microsoft	88.0
German Murphy	doloribus hic corporis	Microsoft	63.0
Gonzalo Blanda	doloribus hic corporis	Microsoft	64.0
Grace Kris	doloribus hic corporis	Microsoft	50.0
Gwendolyn Satterfield	doloribus hic corporis	Microsoft	37.0
Huong McKenzie	doloribus hic corporis	Microsoft	65.0
Imelda Heidenreich	doloribus hic corporis	Microsoft	79.0
Isidro McCullough	doloribus hic corporis	Microsoft	80.0
Jackson Kozey	doloribus hic corporis	Microsoft	82.0
Jamie Stehr	doloribus hic corporis	Microsoft	73.0
Jamison Hagenes	doloribus hic corporis	Microsoft	74.0
Jarvis Ryan	doloribus hic corporis	Microsoft	58.0

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>