DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Milagros Lemke	quibusdam sed sit	Apple	60.0
Milagros Lemke	repudiandae officiis qui	Google	76.0
Milagros Lemke	saepe hic temporibus	Microsoft	82.0
Milagros Lemke	suscipit consectetur beatae	Google	58.0
Milagros Lemke	vitae eum pariatur	Google	34.0
Mi Prosacco	animi aperiam tenetur	Google	90.0
Mi Prosacco	doloribus hic corporis	Microsoft	45.0
Mi Prosacco	eum amet quia	Google	68.0
Mi Prosacco	odio velit repudiandae	Apple	52.0
Mi Prosacco	perspiciatis totam perferendis	Apple	44.0
Mi Prosacco	quibusdam sed sit	Apple	82.0
Mi Prosacco	repudiandae officiis qui	Google	76.0
Mi Prosacco	saepe hic temporibus	Microsoft	40.0
Mi Prosacco	suscipit consectetur beatae	Google	62.0
Mi Prosacco	vitae eum pariatur	Google	81.0
Myriam Von	animi aperiam tenetur	Google	80.0
Myriam Von	doloribus hic corporis	Microsoft	51.0
Myriam Von	eum amet quia	Google	66.0
Myriam Von	odio velit repudiandae	Apple	49.0
Myriam Von	perspiciatis totam perferendis	Apple	53.0
Myriam Von	quibusdam sed sit	Apple	39.0
Myriam Von	repudiandae officiis qui	Google	61.0
Myriam Von	saepe hic temporibus	Microsoft	76.0
Myriam Von	suscipit consectetur beatae	Google	39.0
Myriam Von	vitae eum pariatur	Google	100.0

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_for @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