DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Jeanne Witting	saepe hic temporibus	Microsoft	54.0
Jewell Kreiger	saepe hic temporibus	Microsoft	37.0
Jewell Swaniawski	saepe hic temporibus	Microsoft	88.0
Joelle Hodkiewicz	saepe hic temporibus	Microsoft	57.0
Johnny Spinka	saepe hic temporibus	Microsoft	72.0
Jon Lindgren	saepe hic temporibus	Microsoft	65.0
Juliana Hauck	saepe hic temporibus	Microsoft	55.0
Kaye Greenfelder	saepe hic temporibus	Microsoft	53.0
Kellie Cassin	saepe hic temporibus	Microsoft	62.0
Lesia Hyatt	saepe hic temporibus	Microsoft	103.0
Li Considine	saepe hic temporibus	Microsoft	43.0
Lillie Hamill	saepe hic temporibus	Microsoft	59.0
Lynell Stamm	saepe hic temporibus	Microsoft	69.0
Malvina Zulauf	saepe hic temporibus	Microsoft	39.0
Marna Ritchie	saepe hic temporibus	Microsoft	40.0
Maryanna Medhurst	saepe hic temporibus	Microsoft	65.0
Micheal Jenkins	saepe hic temporibus	Microsoft	100.0
Milagros Lemke	saepe hic temporibus	Microsoft	76.0
Mi Prosacco	saepe hic temporibus	Microsoft	62.0
Myriam Von	saepe hic temporibus	Microsoft	59.0
Myrtle O'Conner	saepe hic temporibus	Microsoft	55.0
Nelson Leannon	saepe hic temporibus	Microsoft	92.0
Ophelia Hermiston	saepe hic temporibus	Microsoft	84.0
Palmira Fay	saepe hic temporibus	Microsoft	14.0
Pearlie McGlynn	saepe hic temporibus	Microsoft	69.0

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