DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	saepe hic temporibus	Microsoft	71.0
Raquel Runolfsson	saepe hic temporibus	Microsoft	79.0
Rebecca Rempel	saepe hic temporibus	Microsoft	61.0
Reinaldo Heidenreich	saepe hic temporibus	Microsoft	72.0
Rossana Schneider	saepe hic temporibus	Microsoft	75.0
Royce Spencer	saepe hic temporibus	Microsoft	81.0
Salley Kilback	saepe hic temporibus	Microsoft	50.0
Shane Glover	saepe hic temporibus	Microsoft	49.0
Shannon Botsford	saepe hic temporibus	Microsoft	34.0
Shara Labadie	saepe hic temporibus	Microsoft	45.0
Sixta Bashirian	saepe hic temporibus	Microsoft	69.0
Sylvester Hane	saepe hic temporibus	Microsoft	53.0
Tamera Bogan	saepe hic temporibus	Microsoft	67.0
Tami Gibson	saepe hic temporibus	Microsoft	88.0
Tamika Cronin	saepe hic temporibus	Microsoft	55.0
Terisa Ruecker	saepe hic temporibus	Microsoft	45.0
Tess Nikolaus	saepe hic temporibus	Microsoft	81.0
Thaddeus Stanton	saepe hic temporibus	Microsoft	68.0
Treena Wolf	saepe hic temporibus	Microsoft	101.0
Verla Friesen	saepe hic temporibus	Microsoft	43.0
Vernia Dietrich	saepe hic temporibus	Microsoft	62.0
Vivien Murray	saepe hic temporibus	Microsoft	57.0
Wen Daniel	saepe hic temporibus	Microsoft	51.0
Wiley Wuckert	saepe hic temporibus	Microsoft	74.0
Winfred Franecki	saepe hic temporibus	Microsoft	61.0

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>