DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Verla Friesen	vitae eum pariatur	Google	38.0
Wen Daniel	quibusdam sed sit	Apple	38.0
Wiley Wuckert	doloribus hic corporis	Microsoft	37.0
Jackson Kozey	odio velit repudiandae	Apple	37.0
Elida Zulauf	quibusdam sed sit	Apple	37.0
Gwendolyn Satterfield	saepe hic temporibus	Microsoft	37.0
Ashleigh Kris	quibusdam sed sit	Apple	37.0
Jamison Hagenes	animi aperiam tenetur	Google	37.0
Isidro McCullough	suscipit consectetur beatae	Google	37.0
Vivien Murray	repudiandae officiis qui	Google	37.0
Treena Wolf	saepe hic temporibus	Microsoft	36.0
Palmira Fay	perspiciatis totam perferendis	Apple	36.0
Johnny Spinka	saepe hic temporibus	Microsoft	36.0
Benita Thompson	suscipit consectetur beatae	Google	36.0
Eleonore Wisozk	suscipit consectetur beatae	Google	35.0
Dania Crona	animi aperiam tenetur	Google	35.0
Jewell Swaniawski	animi aperiam tenetur	Google	35.0
Isidro McCullough	perspiciatis totam perferendis	Apple	35.0
Brigid McLaughlin	repudiandae officiis qui	Google	35.0
Kaye Greenfelder	animi aperiam tenetur	Google	35.0
Sixta Bashirian	quibusdam sed sit	Apple	35.0
Raquel Runolfsson	doloribus hic corporis	Microsoft	35.0
Claudette Hagenes	vitae eum pariatur	Google	34.0
Palmira Fay	odio velit repudiandae	Apple	34.0
Jon Lindgren	suscipit consectetur beatae	Google	34.0

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