DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	quibusdam sed sit	Apple	47.0
Raquel Runolfsson	quibusdam sed sit	Apple	43.0
Rebecca Rempel	quibusdam sed sit	Apple	73.0
Reinaldo Heidenreich	quibusdam sed sit	Apple	106.0
Rossana Schneider	quibusdam sed sit	Apple	43.0
Royce Spencer	quibusdam sed sit	Apple	39.0
Salley Kilback	quibusdam sed sit	Apple	77.0
Shane Glover	quibusdam sed sit	Apple	45.0
Shannon Botsford	quibusdam sed sit	Apple	62.0
Shara Labadie	quibusdam sed sit	Apple	81.0
Sixta Bashirian	quibusdam sed sit	Apple	55.0
Sylvester Hane	quibusdam sed sit	Apple	62.0
Tamera Bogan	quibusdam sed sit	Apple	77.0
Tami Gibson	quibusdam sed sit	Apple	84.0
Tamika Cronin	quibusdam sed sit	Apple	34.0
Terisa Ruecker	quibusdam sed sit	Apple	51.0
Tess Nikolaus	quibusdam sed sit	Apple	76.0
Thaddeus Stanton	quibusdam sed sit	Apple	71.0
Treena Wolf	quibusdam sed sit	Apple	103.0
Verla Friesen	quibusdam sed sit	Apple	113.0
Vernia Dietrich	quibusdam sed sit	Apple	43.0
Vivien Murray	quibusdam sed sit	Apple	71.0
Wen Daniel	quibusdam sed sit	Apple	58.0
Wiley Wuckert	quibusdam sed sit	Apple	56.0
Winfred Franecki	quibusdam sed sit	Apple	46.0

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