DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Desmond Murray	saepe hic temporibus	Microsoft	52.0
Dona Gutkowski	saepe hic temporibus	Microsoft	63.0
Dorthey Turner	saepe hic temporibus	Microsoft	62.0
Elenora Brakus	saepe hic temporibus	Microsoft	56.0
Eleonore Wisozk	saepe hic temporibus	Microsoft	74.0
Elida Zulauf	saepe hic temporibus	Microsoft	92.0
Elisa Wintheiser	saepe hic temporibus	Microsoft	69.0
Elise Waelchi	saepe hic temporibus	Microsoft	60.0
Elli Dietrich	saepe hic temporibus	Microsoft	34.0
Elsa Goodwin	saepe hic temporibus	Microsoft	71.0
Ethyl Ankunding	saepe hic temporibus	Microsoft	26.0
Evangelina Pfeffer	saepe hic temporibus	Microsoft	50.0
Felisa Jaskolski	saepe hic temporibus	Microsoft	67.0
Flavia Will	saepe hic temporibus	Microsoft	63.0
German Murphy	saepe hic temporibus	Microsoft	54.0
Gonzalo Blanda	saepe hic temporibus	Microsoft	46.0
Grace Kris	saepe hic temporibus	Microsoft	65.0
Gwendolyn Satterfield	saepe hic temporibus	Microsoft	116.0
Huong McKenzie	saepe hic temporibus	Microsoft	94.0
Imelda Heidenreich	saepe hic temporibus	Microsoft	81.0
Isidro McCullough	saepe hic temporibus	Microsoft	73.0
Jackson Kozey	saepe hic temporibus	Microsoft	82.0
Jamie Stehr	saepe hic temporibus	Microsoft	52.0
Jamison Hagenes	saepe hic temporibus	Microsoft	67.0
Jarvis Ryan	saepe hic temporibus	Microsoft	49.0

Grid:

class TimeEntriesGrid < ApplicationGrid

  #
  # 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 => :project_id_select,
    :multiple => true,
    :include_blank => false
  ) do |value|
    self.where(:time_entries => {:project_id => value})
  end


  filter(
    :year, :enum,
    :select => :year_select,
    :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 => :month_select,
    :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)")

  protected

  def year_select
    TimeEntry.all.any? ? (TimeEntry.minimum(:date).year..TimeEntry.maximum(:date).year) : []
  end
  def month_select
    Date::MONTHNAMES[1..12].enum_for(:each_with_index).collect {|name, index| [name, index + 1]}
  end

  def project_id_select
    Project.all.map {|p| [p.name, p.id]}
  end
end

Controller:

class TimeEntriesController < ApplicationController

  def index
    @time_entries_grid = TimeEntriesGrid.new(params[:g]) do |scope|
      scope.page(params[:page] )
    end
  end
end

View:

.grid-index-grid
  %div{class: 'overflow-x-auto p-4'}
    = datagrid_form_with model: @time_entries_grid, url: time_entries_path
    %br/
    = datagrid_table(@time_entries_grid)
    = paginate @time_entries_grid.assets, window: 2
  %div
    = render :partial => "shared/source", :object => @time_entries_grid