DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Milagros Lemke	quibusdam sed sit	Apple	75.0
Milagros Lemke	repudiandae officiis qui	Google	25.0
Milagros Lemke	saepe hic temporibus	Microsoft	82.0
Milagros Lemke	suscipit consectetur beatae	Google	47.0
Milagros Lemke	vitae eum pariatur	Google	48.0
Mi Prosacco	animi aperiam tenetur	Google	63.0
Mi Prosacco	doloribus hic corporis	Microsoft	61.0
Mi Prosacco	eum amet quia	Google	71.0
Mi Prosacco	odio velit repudiandae	Apple	39.0
Mi Prosacco	perspiciatis totam perferendis	Apple	59.0
Mi Prosacco	quibusdam sed sit	Apple	80.0
Mi Prosacco	repudiandae officiis qui	Google	69.0
Mi Prosacco	saepe hic temporibus	Microsoft	62.0
Mi Prosacco	suscipit consectetur beatae	Google	43.0
Mi Prosacco	vitae eum pariatur	Google	77.0
Myriam Von	animi aperiam tenetur	Google	50.0
Myriam Von	doloribus hic corporis	Microsoft	54.0
Myriam Von	eum amet quia	Google	64.0
Myriam Von	odio velit repudiandae	Apple	97.0
Myriam Von	perspiciatis totam perferendis	Apple	67.0
Myriam Von	quibusdam sed sit	Apple	52.0
Myriam Von	repudiandae officiis qui	Google	45.0
Myriam Von	saepe hic temporibus	Microsoft	41.0
Myriam Von	suscipit consectetur beatae	Google	65.0
Myriam Von	vitae eum pariatur	Google	59.0

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