DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Jeanne Witting	saepe hic temporibus	Microsoft	56.0
Jewell Kreiger	saepe hic temporibus	Microsoft	68.0
Jewell Swaniawski	saepe hic temporibus	Microsoft	97.0
Joelle Hodkiewicz	saepe hic temporibus	Microsoft	42.0
Johnny Spinka	saepe hic temporibus	Microsoft	36.0
Jon Lindgren	saepe hic temporibus	Microsoft	54.0
Juliana Hauck	saepe hic temporibus	Microsoft	78.0
Kaye Greenfelder	saepe hic temporibus	Microsoft	55.0
Kellie Cassin	saepe hic temporibus	Microsoft	66.0
Lesia Hyatt	saepe hic temporibus	Microsoft	58.0
Li Considine	saepe hic temporibus	Microsoft	86.0
Lillie Hamill	saepe hic temporibus	Microsoft	58.0
Lynell Stamm	saepe hic temporibus	Microsoft	50.0
Malvina Zulauf	saepe hic temporibus	Microsoft	101.0
Marna Ritchie	saepe hic temporibus	Microsoft	69.0
Maryanna Medhurst	saepe hic temporibus	Microsoft	103.0
Micheal Jenkins	saepe hic temporibus	Microsoft	117.0
Milagros Lemke	saepe hic temporibus	Microsoft	48.0
Mi Prosacco	saepe hic temporibus	Microsoft	72.0
Myriam Von	saepe hic temporibus	Microsoft	48.0
Myrtle O'Conner	saepe hic temporibus	Microsoft	64.0
Nelson Leannon	saepe hic temporibus	Microsoft	62.0
Ophelia Hermiston	saepe hic temporibus	Microsoft	52.0
Palmira Fay	saepe hic temporibus	Microsoft	27.0
Pearlie McGlynn	saepe hic temporibus	Microsoft	71.0

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