DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Tess Nikolaus	quibusdam sed sit	Apple	104.0
Arnita Smith	suscipit consectetur beatae	Google	104.0
Adrienne Eichmann	doloribus hic corporis	Microsoft	104.0
Royce Spencer	doloribus hic corporis	Microsoft	104.0
Bok Wolf	repudiandae officiis qui	Google	103.0
Flavia Will	doloribus hic corporis	Microsoft	103.0
Sixta Bashirian	doloribus hic corporis	Microsoft	103.0
Verla Friesen	saepe hic temporibus	Microsoft	103.0
Dorthey Turner	suscipit consectetur beatae	Google	102.0
Cristopher Dooley	eum amet quia	Google	101.0
Raquel Runolfsson	odio velit repudiandae	Apple	100.0
Bok Wolf	odio velit repudiandae	Apple	100.0
Gonzalo Blanda	perspiciatis totam perferendis	Apple	100.0
Marna Ritchie	quibusdam sed sit	Apple	100.0
Ethyl Ankunding	vitae eum pariatur	Google	100.0
Treena Wolf	doloribus hic corporis	Microsoft	100.0
Benita Thompson	doloribus hic corporis	Microsoft	100.0
Dona Gutkowski	eum amet quia	Google	100.0
Elise Waelchi	vitae eum pariatur	Google	98.0
Shane Glover	quibusdam sed sit	Apple	98.0
Cathey Prohaska	perspiciatis totam perferendis	Apple	98.0
Pearlie McGlynn	suscipit consectetur beatae	Google	98.0
Arnita Smith	animi aperiam tenetur	Google	98.0
Elli Dietrich	perspiciatis totam perferendis	Apple	98.0
Sylvester Hane	repudiandae officiis qui	Google	98.0

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>