DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	saepe hic temporibus	Microsoft	56.0
Raquel Runolfsson	saepe hic temporibus	Microsoft	44.0
Rebecca Rempel	saepe hic temporibus	Microsoft	39.0
Reinaldo Heidenreich	saepe hic temporibus	Microsoft	46.0
Rossana Schneider	saepe hic temporibus	Microsoft	49.0
Royce Spencer	saepe hic temporibus	Microsoft	41.0
Salley Kilback	saepe hic temporibus	Microsoft	40.0
Shane Glover	saepe hic temporibus	Microsoft	54.0
Shannon Botsford	saepe hic temporibus	Microsoft	66.0
Shara Labadie	saepe hic temporibus	Microsoft	62.0
Sixta Bashirian	saepe hic temporibus	Microsoft	115.0
Sylvester Hane	saepe hic temporibus	Microsoft	51.0
Tamera Bogan	saepe hic temporibus	Microsoft	59.0
Tami Gibson	saepe hic temporibus	Microsoft	64.0
Tamika Cronin	saepe hic temporibus	Microsoft	72.0
Terisa Ruecker	saepe hic temporibus	Microsoft	94.0
Tess Nikolaus	saepe hic temporibus	Microsoft	60.0
Thaddeus Stanton	saepe hic temporibus	Microsoft	89.0
Treena Wolf	saepe hic temporibus	Microsoft	21.0
Verla Friesen	saepe hic temporibus	Microsoft	103.0
Vernia Dietrich	saepe hic temporibus	Microsoft	37.0
Vivien Murray	saepe hic temporibus	Microsoft	55.0
Wen Daniel	saepe hic temporibus	Microsoft	63.0
Wiley Wuckert	saepe hic temporibus	Microsoft	52.0
Winfred Franecki	saepe hic temporibus	Microsoft	77.0

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>