DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	saepe hic temporibus	Microsoft	91.0
Raquel Runolfsson	saepe hic temporibus	Microsoft	66.0
Rebecca Rempel	saepe hic temporibus	Microsoft	48.0
Reinaldo Heidenreich	saepe hic temporibus	Microsoft	46.0
Rossana Schneider	saepe hic temporibus	Microsoft	100.0
Royce Spencer	saepe hic temporibus	Microsoft	62.0
Salley Kilback	saepe hic temporibus	Microsoft	87.0
Shane Glover	saepe hic temporibus	Microsoft	64.0
Shannon Botsford	saepe hic temporibus	Microsoft	82.0
Shara Labadie	saepe hic temporibus	Microsoft	58.0
Sixta Bashirian	saepe hic temporibus	Microsoft	56.0
Sylvester Hane	saepe hic temporibus	Microsoft	63.0
Tamera Bogan	saepe hic temporibus	Microsoft	59.0
Tami Gibson	saepe hic temporibus	Microsoft	78.0
Tamika Cronin	saepe hic temporibus	Microsoft	54.0
Terisa Ruecker	saepe hic temporibus	Microsoft	58.0
Tess Nikolaus	saepe hic temporibus	Microsoft	51.0
Thaddeus Stanton	saepe hic temporibus	Microsoft	87.0
Treena Wolf	saepe hic temporibus	Microsoft	36.0
Verla Friesen	saepe hic temporibus	Microsoft	70.0
Vernia Dietrich	saepe hic temporibus	Microsoft	49.0
Vivien Murray	saepe hic temporibus	Microsoft	50.0
Wen Daniel	saepe hic temporibus	Microsoft	45.0
Wiley Wuckert	saepe hic temporibus	Microsoft	46.0
Winfred Franecki	saepe hic temporibus	Microsoft	51.0

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