DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Adrienne Eichmann	doloribus hic corporis	Microsoft	125.0
Alex Legros	doloribus hic corporis	Microsoft	70.0
Alise Rolfson	doloribus hic corporis	Microsoft	98.0
Almeta Adams	doloribus hic corporis	Microsoft	77.0
Arnita Smith	doloribus hic corporis	Microsoft	76.0
Ashleigh Kris	doloribus hic corporis	Microsoft	52.0
Awilda Schumm	doloribus hic corporis	Microsoft	33.0
Benita Thompson	doloribus hic corporis	Microsoft	56.0
Beverlee Auer	doloribus hic corporis	Microsoft	54.0
Blake Hoppe	doloribus hic corporis	Microsoft	64.0
Bok Wolf	doloribus hic corporis	Microsoft	88.0
Bong Witting	doloribus hic corporis	Microsoft	37.0
Bridgett Reilly	doloribus hic corporis	Microsoft	67.0
Brigid McLaughlin	doloribus hic corporis	Microsoft	43.0
Britney Ruecker	doloribus hic corporis	Microsoft	75.0
Carlota Gottlieb	doloribus hic corporis	Microsoft	78.0
Cathey Prohaska	doloribus hic corporis	Microsoft	49.0
Cherly Kovacek	doloribus hic corporis	Microsoft	54.0
Claudette Hagenes	doloribus hic corporis	Microsoft	32.0
Clifton Hintz	doloribus hic corporis	Microsoft	34.0
Crissy Brekke	doloribus hic corporis	Microsoft	68.0
Cristopher Dooley	doloribus hic corporis	Microsoft	43.0
Dahlia Hilll	doloribus hic corporis	Microsoft	57.0
Dania Crona	doloribus hic corporis	Microsoft	52.0
Deja Corkery	doloribus hic corporis	Microsoft	53.0

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