DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	saepe hic temporibus	Microsoft	80.0
Raquel Runolfsson	saepe hic temporibus	Microsoft	79.0
Rebecca Rempel	saepe hic temporibus	Microsoft	66.0
Reinaldo Heidenreich	saepe hic temporibus	Microsoft	63.0
Rossana Schneider	saepe hic temporibus	Microsoft	60.0
Royce Spencer	saepe hic temporibus	Microsoft	91.0
Salley Kilback	saepe hic temporibus	Microsoft	74.0
Shane Glover	saepe hic temporibus	Microsoft	29.0
Shannon Botsford	saepe hic temporibus	Microsoft	65.0
Shara Labadie	saepe hic temporibus	Microsoft	113.0
Sixta Bashirian	saepe hic temporibus	Microsoft	52.0
Sylvester Hane	saepe hic temporibus	Microsoft	50.0
Tamera Bogan	saepe hic temporibus	Microsoft	96.0
Tami Gibson	saepe hic temporibus	Microsoft	69.0
Tamika Cronin	saepe hic temporibus	Microsoft	65.0
Terisa Ruecker	saepe hic temporibus	Microsoft	66.0
Tess Nikolaus	saepe hic temporibus	Microsoft	94.0
Thaddeus Stanton	saepe hic temporibus	Microsoft	26.0
Treena Wolf	saepe hic temporibus	Microsoft	54.0
Verla Friesen	saepe hic temporibus	Microsoft	68.0
Vernia Dietrich	saepe hic temporibus	Microsoft	67.0
Vivien Murray	saepe hic temporibus	Microsoft	70.0
Wen Daniel	saepe hic temporibus	Microsoft	52.0
Wiley Wuckert	saepe hic temporibus	Microsoft	53.0
Winfred Franecki	saepe hic temporibus	Microsoft	33.0

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