DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Flavia Will	animi aperiam tenetur	Google	60.0
Bong Witting	odio velit repudiandae	Apple	60.0
German Murphy	vitae eum pariatur	Google	60.0
Shara Labadie	suscipit consectetur beatae	Google	59.0
Desmond Murray	perspiciatis totam perferendis	Apple	59.0
Salley Kilback	perspiciatis totam perferendis	Apple	59.0
German Murphy	odio velit repudiandae	Apple	59.0
Jeanne Witting	vitae eum pariatur	Google	59.0
Deja Corkery	odio velit repudiandae	Apple	59.0
Jamie Stehr	quibusdam sed sit	Apple	59.0
Dahlia Hilll	odio velit repudiandae	Apple	59.0
Cristopher Dooley	odio velit repudiandae	Apple	59.0
Evangelina Pfeffer	perspiciatis totam perferendis	Apple	59.0
Jarvis Ryan	animi aperiam tenetur	Google	59.0
Ashleigh Kris	odio velit repudiandae	Apple	59.0
Gwendolyn Satterfield	repudiandae officiis qui	Google	59.0
Shara Labadie	doloribus hic corporis	Microsoft	59.0
Winfred Franecki	animi aperiam tenetur	Google	59.0
Elli Dietrich	eum amet quia	Google	59.0
Almeta Adams	saepe hic temporibus	Microsoft	59.0
Bridgett Reilly	eum amet quia	Google	59.0
Wiley Wuckert	doloribus hic corporis	Microsoft	59.0
Imelda Heidenreich	quibusdam sed sit	Apple	58.0
Juliana Hauck	vitae eum pariatur	Google	58.0
Jarvis Ryan	quibusdam sed sit	Apple	58.0

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>