DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Juliana Hauck	quibusdam sed sit	Apple	70.0
Palmira Fay	doloribus hic corporis	Microsoft	70.0
Carlota Gottlieb	repudiandae officiis qui	Google	70.0
Arnita Smith	perspiciatis totam perferendis	Apple	71.0
Elli Dietrich	quibusdam sed sit	Apple	71.0
Bok Wolf	quibusdam sed sit	Apple	71.0
Jeanne Witting	odio velit repudiandae	Apple	71.0
Verla Friesen	eum amet quia	Google	71.0
Jon Lindgren	quibusdam sed sit	Apple	71.0
Terisa Ruecker	vitae eum pariatur	Google	71.0
Jackson Kozey	eum amet quia	Google	71.0
Gonzalo Blanda	eum amet quia	Google	71.0
Ashleigh Kris	saepe hic temporibus	Microsoft	71.0
Winfred Franecki	doloribus hic corporis	Microsoft	71.0
Myriam Von	doloribus hic corporis	Microsoft	71.0
Maryanna Medhurst	saepe hic temporibus	Microsoft	71.0
Jewell Kreiger	doloribus hic corporis	Microsoft	71.0
Gonzalo Blanda	repudiandae officiis qui	Google	71.0
Tess Nikolaus	odio velit repudiandae	Apple	71.0
Felisa Jaskolski	doloribus hic corporis	Microsoft	71.0
Mi Prosacco	repudiandae officiis qui	Google	71.0
Shane Glover	perspiciatis totam perferendis	Apple	71.0
Desmond Murray	perspiciatis totam perferendis	Apple	71.0
Jackson Kozey	suscipit consectetur beatae	Google	71.0
Alex Legros	perspiciatis totam perferendis	Apple	71.0

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>