DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Myriam Von	animi aperiam tenetur	Google	43.0
Myriam Von	doloribus hic corporis	Microsoft	71.0
Myriam Von	eum amet quia	Google	55.0
Myriam Von	odio velit repudiandae	Apple	43.0
Myriam Von	perspiciatis totam perferendis	Apple	59.0
Myriam Von	quibusdam sed sit	Apple	82.0
Myriam Von	repudiandae officiis qui	Google	90.0
Myriam Von	saepe hic temporibus	Microsoft	82.0
Myriam Von	suscipit consectetur beatae	Google	49.0
Myriam Von	vitae eum pariatur	Google	57.0
Mi Prosacco	animi aperiam tenetur	Google	47.0
Mi Prosacco	doloribus hic corporis	Microsoft	69.0
Mi Prosacco	eum amet quia	Google	35.0
Mi Prosacco	odio velit repudiandae	Apple	48.0
Mi Prosacco	perspiciatis totam perferendis	Apple	51.0
Mi Prosacco	quibusdam sed sit	Apple	45.0
Mi Prosacco	repudiandae officiis qui	Google	71.0
Mi Prosacco	saepe hic temporibus	Microsoft	56.0
Mi Prosacco	suscipit consectetur beatae	Google	72.0
Mi Prosacco	vitae eum pariatur	Google	32.0
Milagros Lemke	animi aperiam tenetur	Google	40.0
Milagros Lemke	doloribus hic corporis	Microsoft	66.0
Milagros Lemke	eum amet quia	Google	80.0
Milagros Lemke	odio velit repudiandae	Apple	59.0
Milagros Lemke	perspiciatis totam perferendis	Apple	74.0

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