DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	doloribus hic corporis	Microsoft	52.0
Raquel Runolfsson	doloribus hic corporis	Microsoft	55.0
Rebecca Rempel	doloribus hic corporis	Microsoft	78.0
Reinaldo Heidenreich	doloribus hic corporis	Microsoft	85.0
Rossana Schneider	doloribus hic corporis	Microsoft	105.0
Royce Spencer	doloribus hic corporis	Microsoft	61.0
Salley Kilback	doloribus hic corporis	Microsoft	60.0
Shane Glover	doloribus hic corporis	Microsoft	96.0
Shannon Botsford	doloribus hic corporis	Microsoft	35.0
Shara Labadie	doloribus hic corporis	Microsoft	76.0
Sixta Bashirian	doloribus hic corporis	Microsoft	84.0
Sylvester Hane	doloribus hic corporis	Microsoft	59.0
Tamera Bogan	doloribus hic corporis	Microsoft	85.0
Tami Gibson	doloribus hic corporis	Microsoft	39.0
Tamika Cronin	doloribus hic corporis	Microsoft	60.0
Terisa Ruecker	doloribus hic corporis	Microsoft	62.0
Tess Nikolaus	doloribus hic corporis	Microsoft	76.0
Thaddeus Stanton	doloribus hic corporis	Microsoft	58.0
Treena Wolf	doloribus hic corporis	Microsoft	50.0
Verla Friesen	doloribus hic corporis	Microsoft	55.0
Vernia Dietrich	doloribus hic corporis	Microsoft	73.0
Vivien Murray	doloribus hic corporis	Microsoft	87.0
Wen Daniel	doloribus hic corporis	Microsoft	108.0
Wiley Wuckert	doloribus hic corporis	Microsoft	46.0
Winfred Franecki	doloribus hic corporis	Microsoft	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