DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Jeanne Witting	saepe hic temporibus	Microsoft	82.0
Jewell Kreiger	saepe hic temporibus	Microsoft	38.0
Jewell Swaniawski	saepe hic temporibus	Microsoft	47.0
Joelle Hodkiewicz	saepe hic temporibus	Microsoft	71.0
Johnny Spinka	saepe hic temporibus	Microsoft	84.0
Jon Lindgren	saepe hic temporibus	Microsoft	42.0
Juliana Hauck	saepe hic temporibus	Microsoft	65.0
Kaye Greenfelder	saepe hic temporibus	Microsoft	46.0
Kellie Cassin	saepe hic temporibus	Microsoft	69.0
Lesia Hyatt	saepe hic temporibus	Microsoft	72.0
Li Considine	saepe hic temporibus	Microsoft	35.0
Lillie Hamill	saepe hic temporibus	Microsoft	66.0
Lynell Stamm	saepe hic temporibus	Microsoft	114.0
Malvina Zulauf	saepe hic temporibus	Microsoft	35.0
Marna Ritchie	saepe hic temporibus	Microsoft	81.0
Maryanna Medhurst	saepe hic temporibus	Microsoft	45.0
Micheal Jenkins	saepe hic temporibus	Microsoft	62.0
Milagros Lemke	saepe hic temporibus	Microsoft	66.0
Mi Prosacco	saepe hic temporibus	Microsoft	40.0
Myriam Von	saepe hic temporibus	Microsoft	44.0
Myrtle O'Conner	saepe hic temporibus	Microsoft	61.0
Nelson Leannon	saepe hic temporibus	Microsoft	45.0
Ophelia Hermiston	saepe hic temporibus	Microsoft	60.0
Palmira Fay	saepe hic temporibus	Microsoft	82.0
Pearlie McGlynn	saepe hic temporibus	Microsoft	48.0

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