DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Royce Spencer	doloribus hic corporis	Microsoft	70.0
Mi Prosacco	quibusdam sed sit	Apple	70.0
Elli Dietrich	animi aperiam tenetur	Google	70.0
Elida Zulauf	odio velit repudiandae	Apple	70.0
Gonzalo Blanda	odio velit repudiandae	Apple	71.0
Jewell Kreiger	vitae eum pariatur	Google	71.0
Cathey Prohaska	vitae eum pariatur	Google	71.0
Bong Witting	repudiandae officiis qui	Google	71.0
Tess Nikolaus	odio velit repudiandae	Apple	71.0
Reinaldo Heidenreich	saepe hic temporibus	Microsoft	71.0
Jamison Hagenes	repudiandae officiis qui	Google	71.0
Micheal Jenkins	quibusdam sed sit	Apple	71.0
Grace Kris	doloribus hic corporis	Microsoft	71.0
Li Considine	eum amet quia	Google	71.0
Arnita Smith	repudiandae officiis qui	Google	71.0
Gwendolyn Satterfield	animi aperiam tenetur	Google	71.0
Elenora Brakus	quibusdam sed sit	Apple	71.0
Ophelia Hermiston	animi aperiam tenetur	Google	71.0
Rossana Schneider	eum amet quia	Google	71.0
Jewell Swaniawski	quibusdam sed sit	Apple	71.0
Elise Waelchi	perspiciatis totam perferendis	Apple	71.0
Adrienne Eichmann	vitae eum pariatur	Google	71.0
Evangelina Pfeffer	eum amet quia	Google	71.0
Dahlia Hilll	repudiandae officiis qui	Google	71.0
Evangelina Pfeffer	perspiciatis totam perferendis	Apple	71.0

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