DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Jeanne Witting	doloribus hic corporis	Microsoft	46.0
Jewell Kreiger	doloribus hic corporis	Microsoft	62.0
Jewell Swaniawski	doloribus hic corporis	Microsoft	49.0
Joelle Hodkiewicz	doloribus hic corporis	Microsoft	58.0
Johnny Spinka	doloribus hic corporis	Microsoft	67.0
Jon Lindgren	doloribus hic corporis	Microsoft	72.0
Juliana Hauck	doloribus hic corporis	Microsoft	48.0
Kaye Greenfelder	doloribus hic corporis	Microsoft	48.0
Kellie Cassin	doloribus hic corporis	Microsoft	62.0
Lesia Hyatt	doloribus hic corporis	Microsoft	58.0
Li Considine	doloribus hic corporis	Microsoft	37.0
Lillie Hamill	doloribus hic corporis	Microsoft	59.0
Lynell Stamm	doloribus hic corporis	Microsoft	59.0
Malvina Zulauf	doloribus hic corporis	Microsoft	37.0
Marna Ritchie	doloribus hic corporis	Microsoft	55.0
Maryanna Medhurst	doloribus hic corporis	Microsoft	81.0
Micheal Jenkins	doloribus hic corporis	Microsoft	52.0
Milagros Lemke	doloribus hic corporis	Microsoft	68.0
Mi Prosacco	doloribus hic corporis	Microsoft	31.0
Myriam Von	doloribus hic corporis	Microsoft	58.0
Myrtle O'Conner	doloribus hic corporis	Microsoft	56.0
Nelson Leannon	doloribus hic corporis	Microsoft	47.0
Ophelia Hermiston	doloribus hic corporis	Microsoft	54.0
Palmira Fay	doloribus hic corporis	Microsoft	75.0
Pearlie McGlynn	doloribus hic corporis	Microsoft	36.0

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