DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Jeanne Witting	saepe hic temporibus	Microsoft	94.0
Jewell Kreiger	saepe hic temporibus	Microsoft	87.0
Jewell Swaniawski	saepe hic temporibus	Microsoft	37.0
Joelle Hodkiewicz	saepe hic temporibus	Microsoft	53.0
Johnny Spinka	saepe hic temporibus	Microsoft	78.0
Jon Lindgren	saepe hic temporibus	Microsoft	56.0
Juliana Hauck	saepe hic temporibus	Microsoft	75.0
Kaye Greenfelder	saepe hic temporibus	Microsoft	43.0
Kellie Cassin	saepe hic temporibus	Microsoft	40.0
Lesia Hyatt	saepe hic temporibus	Microsoft	92.0
Li Considine	saepe hic temporibus	Microsoft	67.0
Lillie Hamill	saepe hic temporibus	Microsoft	60.0
Lynell Stamm	saepe hic temporibus	Microsoft	85.0
Malvina Zulauf	saepe hic temporibus	Microsoft	80.0
Marna Ritchie	saepe hic temporibus	Microsoft	42.0
Maryanna Medhurst	saepe hic temporibus	Microsoft	54.0
Micheal Jenkins	saepe hic temporibus	Microsoft	83.0
Milagros Lemke	saepe hic temporibus	Microsoft	84.0
Mi Prosacco	saepe hic temporibus	Microsoft	48.0
Myriam Von	saepe hic temporibus	Microsoft	78.0
Myrtle O'Conner	saepe hic temporibus	Microsoft	44.0
Nelson Leannon	saepe hic temporibus	Microsoft	89.0
Ophelia Hermiston	saepe hic temporibus	Microsoft	46.0
Palmira Fay	saepe hic temporibus	Microsoft	56.0
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