DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	doloribus hic corporis	Microsoft	29.0
Raquel Runolfsson	doloribus hic corporis	Microsoft	35.0
Rebecca Rempel	doloribus hic corporis	Microsoft	59.0
Reinaldo Heidenreich	doloribus hic corporis	Microsoft	79.0
Rossana Schneider	doloribus hic corporis	Microsoft	71.0
Royce Spencer	doloribus hic corporis	Microsoft	51.0
Salley Kilback	doloribus hic corporis	Microsoft	44.0
Shane Glover	doloribus hic corporis	Microsoft	50.0
Shannon Botsford	doloribus hic corporis	Microsoft	53.0
Shara Labadie	doloribus hic corporis	Microsoft	66.0
Sixta Bashirian	doloribus hic corporis	Microsoft	46.0
Sylvester Hane	doloribus hic corporis	Microsoft	85.0
Tamera Bogan	doloribus hic corporis	Microsoft	69.0
Tami Gibson	doloribus hic corporis	Microsoft	62.0
Tamika Cronin	doloribus hic corporis	Microsoft	67.0
Terisa Ruecker	doloribus hic corporis	Microsoft	60.0
Tess Nikolaus	doloribus hic corporis	Microsoft	81.0
Thaddeus Stanton	doloribus hic corporis	Microsoft	77.0
Treena Wolf	doloribus hic corporis	Microsoft	100.0
Verla Friesen	doloribus hic corporis	Microsoft	52.0
Vernia Dietrich	doloribus hic corporis	Microsoft	66.0
Vivien Murray	doloribus hic corporis	Microsoft	78.0
Wen Daniel	doloribus hic corporis	Microsoft	71.0
Wiley Wuckert	doloribus hic corporis	Microsoft	37.0
Winfred Franecki	doloribus hic corporis	Microsoft	52.0

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