DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	doloribus hic corporis	Microsoft	78.0
Raquel Runolfsson	doloribus hic corporis	Microsoft	74.0
Rebecca Rempel	doloribus hic corporis	Microsoft	51.0
Reinaldo Heidenreich	doloribus hic corporis	Microsoft	57.0
Rossana Schneider	doloribus hic corporis	Microsoft	54.0
Royce Spencer	doloribus hic corporis	Microsoft	104.0
Salley Kilback	doloribus hic corporis	Microsoft	48.0
Shane Glover	doloribus hic corporis	Microsoft	56.0
Shannon Botsford	doloribus hic corporis	Microsoft	64.0
Shara Labadie	doloribus hic corporis	Microsoft	42.0
Sixta Bashirian	doloribus hic corporis	Microsoft	103.0
Sylvester Hane	doloribus hic corporis	Microsoft	57.0
Tamera Bogan	doloribus hic corporis	Microsoft	52.0
Tami Gibson	doloribus hic corporis	Microsoft	41.0
Tamika Cronin	doloribus hic corporis	Microsoft	70.0
Terisa Ruecker	doloribus hic corporis	Microsoft	62.0
Tess Nikolaus	doloribus hic corporis	Microsoft	64.0
Thaddeus Stanton	doloribus hic corporis	Microsoft	67.0
Treena Wolf	doloribus hic corporis	Microsoft	100.0
Verla Friesen	doloribus hic corporis	Microsoft	56.0
Vernia Dietrich	doloribus hic corporis	Microsoft	84.0
Vivien Murray	doloribus hic corporis	Microsoft	64.0
Wen Daniel	doloribus hic corporis	Microsoft	53.0
Wiley Wuckert	doloribus hic corporis	Microsoft	85.0
Winfred Franecki	doloribus hic corporis	Microsoft	71.0

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>