DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	saepe hic temporibus	Microsoft	40.0
Raquel Runolfsson	saepe hic temporibus	Microsoft	32.0
Rebecca Rempel	saepe hic temporibus	Microsoft	72.0
Reinaldo Heidenreich	saepe hic temporibus	Microsoft	71.0
Rossana Schneider	saepe hic temporibus	Microsoft	86.0
Royce Spencer	saepe hic temporibus	Microsoft	39.0
Salley Kilback	saepe hic temporibus	Microsoft	55.0
Shane Glover	saepe hic temporibus	Microsoft	63.0
Shannon Botsford	saepe hic temporibus	Microsoft	73.0
Shara Labadie	saepe hic temporibus	Microsoft	59.0
Sixta Bashirian	saepe hic temporibus	Microsoft	64.0
Sylvester Hane	saepe hic temporibus	Microsoft	92.0
Tamera Bogan	saepe hic temporibus	Microsoft	46.0
Tami Gibson	saepe hic temporibus	Microsoft	45.0
Tamika Cronin	saepe hic temporibus	Microsoft	50.0
Terisa Ruecker	saepe hic temporibus	Microsoft	64.0
Tess Nikolaus	saepe hic temporibus	Microsoft	25.0
Thaddeus Stanton	saepe hic temporibus	Microsoft	26.0
Treena Wolf	saepe hic temporibus	Microsoft	65.0
Verla Friesen	saepe hic temporibus	Microsoft	49.0
Vernia Dietrich	saepe hic temporibus	Microsoft	66.0
Vivien Murray	saepe hic temporibus	Microsoft	48.0
Wen Daniel	saepe hic temporibus	Microsoft	59.0
Wiley Wuckert	saepe hic temporibus	Microsoft	117.0
Winfred Franecki	saepe hic temporibus	Microsoft	53.0

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>