DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Jeanne Witting	saepe hic temporibus	Microsoft	62.0
Jewell Kreiger	saepe hic temporibus	Microsoft	88.0
Jewell Swaniawski	saepe hic temporibus	Microsoft	72.0
Joelle Hodkiewicz	saepe hic temporibus	Microsoft	34.0
Johnny Spinka	saepe hic temporibus	Microsoft	83.0
Jon Lindgren	saepe hic temporibus	Microsoft	60.0
Juliana Hauck	saepe hic temporibus	Microsoft	64.0
Kaye Greenfelder	saepe hic temporibus	Microsoft	73.0
Kellie Cassin	saepe hic temporibus	Microsoft	49.0
Lesia Hyatt	saepe hic temporibus	Microsoft	54.0
Li Considine	saepe hic temporibus	Microsoft	68.0
Lillie Hamill	saepe hic temporibus	Microsoft	51.0
Lynell Stamm	saepe hic temporibus	Microsoft	102.0
Malvina Zulauf	saepe hic temporibus	Microsoft	85.0
Marna Ritchie	saepe hic temporibus	Microsoft	74.0
Maryanna Medhurst	saepe hic temporibus	Microsoft	64.0
Micheal Jenkins	saepe hic temporibus	Microsoft	50.0
Milagros Lemke	saepe hic temporibus	Microsoft	92.0
Mi Prosacco	saepe hic temporibus	Microsoft	66.0
Myriam Von	saepe hic temporibus	Microsoft	50.0
Myrtle O'Conner	saepe hic temporibus	Microsoft	52.0
Nelson Leannon	saepe hic temporibus	Microsoft	50.0
Ophelia Hermiston	saepe hic temporibus	Microsoft	44.0
Palmira Fay	saepe hic temporibus	Microsoft	100.0
Pearlie McGlynn	saepe hic temporibus	Microsoft	49.0

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