DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Claudette Hagenes	saepe hic temporibus	Microsoft	59.0
Dorthey Turner	quibusdam sed sit	Apple	59.0
Alex Legros	eum amet quia	Google	59.0
Awilda Schumm	repudiandae officiis qui	Google	59.0
Terisa Ruecker	animi aperiam tenetur	Google	59.0
Jackson Kozey	saepe hic temporibus	Microsoft	59.0
Brigid McLaughlin	vitae eum pariatur	Google	59.0
Joelle Hodkiewicz	perspiciatis totam perferendis	Apple	59.0
Wiley Wuckert	repudiandae officiis qui	Google	59.0
Terisa Ruecker	eum amet quia	Google	59.0
Joelle Hodkiewicz	suscipit consectetur beatae	Google	59.0
Myriam Von	animi aperiam tenetur	Google	59.0
Mi Prosacco	animi aperiam tenetur	Google	59.0
Penney Schowalter	eum amet quia	Google	59.0
Elsa Goodwin	repudiandae officiis qui	Google	59.0
Lesia Hyatt	suscipit consectetur beatae	Google	59.0
Bong Witting	saepe hic temporibus	Microsoft	59.0
Desmond Murray	vitae eum pariatur	Google	60.0
Elise Waelchi	perspiciatis totam perferendis	Apple	60.0
Bong Witting	perspiciatis totam perferendis	Apple	60.0
Thaddeus Stanton	saepe hic temporibus	Microsoft	60.0
Shannon Botsford	doloribus hic corporis	Microsoft	60.0
Isidro McCullough	animi aperiam tenetur	Google	60.0
Lynell Stamm	odio velit repudiandae	Apple	60.0
Royce Spencer	suscipit consectetur beatae	Google	60.0

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>