DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Lesia Hyatt	saepe hic temporibus	Microsoft	84.0
Bok Wolf	eum amet quia	Google	83.0
Jewell Swaniawski	perspiciatis totam perferendis	Apple	83.0
Jamison Hagenes	suscipit consectetur beatae	Google	83.0
Rossana Schneider	quibusdam sed sit	Apple	83.0
Jewell Kreiger	odio velit repudiandae	Apple	83.0
Clifton Hintz	repudiandae officiis qui	Google	83.0
Lynell Stamm	animi aperiam tenetur	Google	82.0
Elsa Goodwin	vitae eum pariatur	Google	82.0
Myriam Von	quibusdam sed sit	Apple	82.0
Kellie Cassin	suscipit consectetur beatae	Google	82.0
Alex Legros	doloribus hic corporis	Microsoft	82.0
Desmond Murray	odio velit repudiandae	Apple	82.0
Brigid McLaughlin	eum amet quia	Google	82.0
Wen Daniel	odio velit repudiandae	Apple	82.0
Malvina Zulauf	saepe hic temporibus	Microsoft	82.0
Myriam Von	saepe hic temporibus	Microsoft	82.0
German Murphy	doloribus hic corporis	Microsoft	82.0
Dahlia Hilll	suscipit consectetur beatae	Google	82.0
Tess Nikolaus	repudiandae officiis qui	Google	82.0
Adrienne Eichmann	saepe hic temporibus	Microsoft	81.0
Awilda Schumm	animi aperiam tenetur	Google	81.0
Shannon Botsford	perspiciatis totam perferendis	Apple	81.0
Jamie Stehr	odio velit repudiandae	Apple	81.0
Pearlie McGlynn	doloribus hic corporis	Microsoft	81.0

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>