DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Milagros Lemke	quibusdam sed sit	Apple	59.0
Milagros Lemke	repudiandae officiis qui	Google	84.0
Milagros Lemke	saepe hic temporibus	Microsoft	77.0
Milagros Lemke	suscipit consectetur beatae	Google	75.0
Milagros Lemke	vitae eum pariatur	Google	65.0
Mi Prosacco	animi aperiam tenetur	Google	35.0
Mi Prosacco	doloribus hic corporis	Microsoft	43.0
Mi Prosacco	eum amet quia	Google	64.0
Mi Prosacco	odio velit repudiandae	Apple	33.0
Mi Prosacco	perspiciatis totam perferendis	Apple	59.0
Mi Prosacco	quibusdam sed sit	Apple	55.0
Mi Prosacco	repudiandae officiis qui	Google	72.0
Mi Prosacco	saepe hic temporibus	Microsoft	47.0
Mi Prosacco	suscipit consectetur beatae	Google	53.0
Mi Prosacco	vitae eum pariatur	Google	76.0
Myriam Von	animi aperiam tenetur	Google	48.0
Myriam Von	doloribus hic corporis	Microsoft	43.0
Myriam Von	eum amet quia	Google	109.0
Myriam Von	odio velit repudiandae	Apple	69.0
Myriam Von	perspiciatis totam perferendis	Apple	58.0
Myriam Von	quibusdam sed sit	Apple	57.0
Myriam Von	repudiandae officiis qui	Google	111.0
Myriam Von	saepe hic temporibus	Microsoft	69.0
Myriam Von	suscipit consectetur beatae	Google	49.0
Myriam Von	vitae eum pariatur	Google	60.0

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