DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Micheal Jenkins	quibusdam sed sit	Apple	71.0
Ophelia Hermiston	animi aperiam tenetur	Google	71.0
Evangelina Pfeffer	eum amet quia	Google	71.0
Jewell Swaniawski	quibusdam sed sit	Apple	71.0
Bok Wolf	doloribus hic corporis	Microsoft	71.0
Pearlie McGlynn	eum amet quia	Google	72.0
Bok Wolf	repudiandae officiis qui	Google	72.0
Huong McKenzie	odio velit repudiandae	Apple	72.0
Alex Legros	saepe hic temporibus	Microsoft	72.0
Terisa Ruecker	animi aperiam tenetur	Google	72.0
Nelson Leannon	quibusdam sed sit	Apple	72.0
Eleonore Wisozk	animi aperiam tenetur	Google	72.0
Blake Hoppe	doloribus hic corporis	Microsoft	72.0
Rebecca Rempel	saepe hic temporibus	Microsoft	72.0
Terisa Ruecker	suscipit consectetur beatae	Google	72.0
Thaddeus Stanton	repudiandae officiis qui	Google	72.0
Treena Wolf	odio velit repudiandae	Apple	72.0
Wen Daniel	repudiandae officiis qui	Google	72.0
Claudette Hagenes	repudiandae officiis qui	Google	72.0
Carlota Gottlieb	repudiandae officiis qui	Google	72.0
Clifton Hintz	saepe hic temporibus	Microsoft	73.0
Johnny Spinka	quibusdam sed sit	Apple	73.0
Marna Ritchie	doloribus hic corporis	Microsoft	73.0
Wen Daniel	eum amet quia	Google	73.0
Kaye Greenfelder	perspiciatis totam perferendis	Apple	73.0

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>