DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	doloribus hic corporis	Microsoft	43.0
Raquel Runolfsson	doloribus hic corporis	Microsoft	41.0
Rebecca Rempel	doloribus hic corporis	Microsoft	63.0
Reinaldo Heidenreich	doloribus hic corporis	Microsoft	93.0
Rossana Schneider	doloribus hic corporis	Microsoft	63.0
Royce Spencer	doloribus hic corporis	Microsoft	43.0
Salley Kilback	doloribus hic corporis	Microsoft	65.0
Shane Glover	doloribus hic corporis	Microsoft	42.0
Shannon Botsford	doloribus hic corporis	Microsoft	35.0
Shara Labadie	doloribus hic corporis	Microsoft	37.0
Sixta Bashirian	doloribus hic corporis	Microsoft	30.0
Sylvester Hane	doloribus hic corporis	Microsoft	53.0
Tamera Bogan	doloribus hic corporis	Microsoft	81.0
Tami Gibson	doloribus hic corporis	Microsoft	69.0
Tamika Cronin	doloribus hic corporis	Microsoft	54.0
Terisa Ruecker	doloribus hic corporis	Microsoft	50.0
Tess Nikolaus	doloribus hic corporis	Microsoft	57.0
Thaddeus Stanton	doloribus hic corporis	Microsoft	63.0
Treena Wolf	doloribus hic corporis	Microsoft	88.0
Verla Friesen	doloribus hic corporis	Microsoft	106.0
Vernia Dietrich	doloribus hic corporis	Microsoft	72.0
Vivien Murray	doloribus hic corporis	Microsoft	47.0
Wen Daniel	doloribus hic corporis	Microsoft	74.0
Wiley Wuckert	doloribus hic corporis	Microsoft	48.0
Winfred Franecki	doloribus hic corporis	Microsoft	57.0

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