DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	doloribus hic corporis	Microsoft	45.0
Raquel Runolfsson	doloribus hic corporis	Microsoft	72.0
Rebecca Rempel	doloribus hic corporis	Microsoft	90.0
Reinaldo Heidenreich	doloribus hic corporis	Microsoft	47.0
Rossana Schneider	doloribus hic corporis	Microsoft	59.0
Royce Spencer	doloribus hic corporis	Microsoft	25.0
Salley Kilback	doloribus hic corporis	Microsoft	46.0
Shane Glover	doloribus hic corporis	Microsoft	59.0
Shannon Botsford	doloribus hic corporis	Microsoft	65.0
Shara Labadie	doloribus hic corporis	Microsoft	71.0
Sixta Bashirian	doloribus hic corporis	Microsoft	53.0
Sylvester Hane	doloribus hic corporis	Microsoft	47.0
Tamera Bogan	doloribus hic corporis	Microsoft	57.0
Tami Gibson	doloribus hic corporis	Microsoft	60.0
Tamika Cronin	doloribus hic corporis	Microsoft	40.0
Terisa Ruecker	doloribus hic corporis	Microsoft	55.0
Tess Nikolaus	doloribus hic corporis	Microsoft	80.0
Thaddeus Stanton	doloribus hic corporis	Microsoft	72.0
Treena Wolf	doloribus hic corporis	Microsoft	72.0
Verla Friesen	doloribus hic corporis	Microsoft	41.0
Vernia Dietrich	doloribus hic corporis	Microsoft	87.0
Vivien Murray	doloribus hic corporis	Microsoft	78.0
Wen Daniel	doloribus hic corporis	Microsoft	40.0
Wiley Wuckert	doloribus hic corporis	Microsoft	58.0
Winfred Franecki	doloribus hic corporis	Microsoft	32.0

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>