DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	saepe hic temporibus	Microsoft	54.0
Raquel Runolfsson	saepe hic temporibus	Microsoft	37.0
Rebecca Rempel	saepe hic temporibus	Microsoft	50.0
Reinaldo Heidenreich	saepe hic temporibus	Microsoft	61.0
Rossana Schneider	saepe hic temporibus	Microsoft	50.0
Royce Spencer	saepe hic temporibus	Microsoft	66.0
Salley Kilback	saepe hic temporibus	Microsoft	55.0
Shane Glover	saepe hic temporibus	Microsoft	55.0
Shannon Botsford	saepe hic temporibus	Microsoft	60.0
Shara Labadie	saepe hic temporibus	Microsoft	67.0
Sixta Bashirian	saepe hic temporibus	Microsoft	52.0
Sylvester Hane	saepe hic temporibus	Microsoft	83.0
Tamera Bogan	saepe hic temporibus	Microsoft	46.0
Tami Gibson	saepe hic temporibus	Microsoft	66.0
Tamika Cronin	saepe hic temporibus	Microsoft	60.0
Terisa Ruecker	saepe hic temporibus	Microsoft	64.0
Tess Nikolaus	saepe hic temporibus	Microsoft	92.0
Thaddeus Stanton	saepe hic temporibus	Microsoft	67.0
Treena Wolf	saepe hic temporibus	Microsoft	53.0
Verla Friesen	saepe hic temporibus	Microsoft	90.0
Vernia Dietrich	saepe hic temporibus	Microsoft	56.0
Vivien Murray	saepe hic temporibus	Microsoft	64.0
Wen Daniel	saepe hic temporibus	Microsoft	71.0
Wiley Wuckert	saepe hic temporibus	Microsoft	71.0
Winfred Franecki	saepe hic temporibus	Microsoft	46.0

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>