DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Milagros Lemke	quibusdam sed sit	Apple	68.0
Milagros Lemke	repudiandae officiis qui	Google	36.0
Milagros Lemke	saepe hic temporibus	Microsoft	42.0
Milagros Lemke	suscipit consectetur beatae	Google	28.0
Milagros Lemke	vitae eum pariatur	Google	61.0
Mi Prosacco	animi aperiam tenetur	Google	34.0
Mi Prosacco	doloribus hic corporis	Microsoft	52.0
Mi Prosacco	eum amet quia	Google	71.0
Mi Prosacco	odio velit repudiandae	Apple	43.0
Mi Prosacco	perspiciatis totam perferendis	Apple	85.0
Mi Prosacco	quibusdam sed sit	Apple	49.0
Mi Prosacco	repudiandae officiis qui	Google	67.0
Mi Prosacco	saepe hic temporibus	Microsoft	75.0
Mi Prosacco	suscipit consectetur beatae	Google	25.0
Mi Prosacco	vitae eum pariatur	Google	89.0
Myriam Von	animi aperiam tenetur	Google	53.0
Myriam Von	doloribus hic corporis	Microsoft	36.0
Myriam Von	eum amet quia	Google	68.0
Myriam Von	odio velit repudiandae	Apple	63.0
Myriam Von	perspiciatis totam perferendis	Apple	48.0
Myriam Von	quibusdam sed sit	Apple	50.0
Myriam Von	repudiandae officiis qui	Google	71.0
Myriam Von	saepe hic temporibus	Microsoft	62.0
Myriam Von	suscipit consectetur beatae	Google	52.0
Myriam Von	vitae eum pariatur	Google	68.0

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