DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Milagros Lemke	quibusdam sed sit	Apple	69.0
Milagros Lemke	repudiandae officiis qui	Google	26.0
Milagros Lemke	saepe hic temporibus	Microsoft	76.0
Milagros Lemke	suscipit consectetur beatae	Google	51.0
Milagros Lemke	vitae eum pariatur	Google	34.0
Mi Prosacco	animi aperiam tenetur	Google	61.0
Mi Prosacco	doloribus hic corporis	Microsoft	44.0
Mi Prosacco	eum amet quia	Google	36.0
Mi Prosacco	odio velit repudiandae	Apple	65.0
Mi Prosacco	perspiciatis totam perferendis	Apple	112.0
Mi Prosacco	quibusdam sed sit	Apple	71.0
Mi Prosacco	repudiandae officiis qui	Google	37.0
Mi Prosacco	saepe hic temporibus	Microsoft	87.0
Mi Prosacco	suscipit consectetur beatae	Google	47.0
Mi Prosacco	vitae eum pariatur	Google	38.0
Myriam Von	animi aperiam tenetur	Google	78.0
Myriam Von	doloribus hic corporis	Microsoft	86.0
Myriam Von	eum amet quia	Google	84.0
Myriam Von	odio velit repudiandae	Apple	43.0
Myriam Von	perspiciatis totam perferendis	Apple	31.0
Myriam Von	quibusdam sed sit	Apple	42.0
Myriam Von	repudiandae officiis qui	Google	78.0
Myriam Von	saepe hic temporibus	Microsoft	40.0
Myriam Von	suscipit consectetur beatae	Google	58.0
Myriam Von	vitae eum pariatur	Google	42.0

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