DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Adrienne Eichmann	saepe hic temporibus	Microsoft	79.0
Alex Legros	saepe hic temporibus	Microsoft	72.0
Alise Rolfson	saepe hic temporibus	Microsoft	37.0
Almeta Adams	saepe hic temporibus	Microsoft	53.0
Arnita Smith	saepe hic temporibus	Microsoft	39.0
Ashleigh Kris	saepe hic temporibus	Microsoft	47.0
Awilda Schumm	saepe hic temporibus	Microsoft	105.0
Benita Thompson	saepe hic temporibus	Microsoft	73.0
Beverlee Auer	saepe hic temporibus	Microsoft	79.0
Blake Hoppe	saepe hic temporibus	Microsoft	62.0
Bok Wolf	saepe hic temporibus	Microsoft	51.0
Bong Witting	saepe hic temporibus	Microsoft	68.0
Bridgett Reilly	saepe hic temporibus	Microsoft	40.0
Brigid McLaughlin	saepe hic temporibus	Microsoft	42.0
Britney Ruecker	saepe hic temporibus	Microsoft	93.0
Carlota Gottlieb	saepe hic temporibus	Microsoft	53.0
Cathey Prohaska	saepe hic temporibus	Microsoft	53.0
Cherly Kovacek	saepe hic temporibus	Microsoft	53.0
Claudette Hagenes	saepe hic temporibus	Microsoft	57.0
Clifton Hintz	saepe hic temporibus	Microsoft	73.0
Crissy Brekke	saepe hic temporibus	Microsoft	35.0
Cristopher Dooley	saepe hic temporibus	Microsoft	56.0
Dahlia Hilll	saepe hic temporibus	Microsoft	45.0
Dania Crona	saepe hic temporibus	Microsoft	59.0
Deja Corkery	saepe hic temporibus	Microsoft	39.0

Grid:

class TimeEntriesGrid < BaseGrid

  #
  # 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_for @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