DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Penney Schowalter	quibusdam sed sit	Apple	35.0
Raquel Runolfsson	quibusdam sed sit	Apple	58.0
Rebecca Rempel	quibusdam sed sit	Apple	78.0
Reinaldo Heidenreich	quibusdam sed sit	Apple	67.0
Rossana Schneider	quibusdam sed sit	Apple	75.0
Royce Spencer	quibusdam sed sit	Apple	81.0
Salley Kilback	quibusdam sed sit	Apple	57.0
Shane Glover	quibusdam sed sit	Apple	63.0
Shannon Botsford	quibusdam sed sit	Apple	37.0
Shara Labadie	quibusdam sed sit	Apple	89.0
Sixta Bashirian	quibusdam sed sit	Apple	42.0
Sylvester Hane	quibusdam sed sit	Apple	50.0
Tamera Bogan	quibusdam sed sit	Apple	56.0
Tami Gibson	quibusdam sed sit	Apple	63.0
Tamika Cronin	quibusdam sed sit	Apple	97.0
Terisa Ruecker	quibusdam sed sit	Apple	44.0
Tess Nikolaus	quibusdam sed sit	Apple	45.0
Thaddeus Stanton	quibusdam sed sit	Apple	33.0
Treena Wolf	quibusdam sed sit	Apple	114.0
Verla Friesen	quibusdam sed sit	Apple	65.0
Vernia Dietrich	quibusdam sed sit	Apple	57.0
Vivien Murray	quibusdam sed sit	Apple	74.0
Wen Daniel	quibusdam sed sit	Apple	47.0
Wiley Wuckert	quibusdam sed sit	Apple	71.0
Winfred Franecki	quibusdam sed sit	Apple	70.0

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