DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Jeanne Witting	doloribus hic corporis	Microsoft	102.0
Jewell Kreiger	doloribus hic corporis	Microsoft	126.0
Jewell Swaniawski	doloribus hic corporis	Microsoft	42.0
Joelle Hodkiewicz	doloribus hic corporis	Microsoft	51.0
Johnny Spinka	doloribus hic corporis	Microsoft	65.0
Jon Lindgren	doloribus hic corporis	Microsoft	32.0
Juliana Hauck	doloribus hic corporis	Microsoft	47.0
Kaye Greenfelder	doloribus hic corporis	Microsoft	46.0
Kellie Cassin	doloribus hic corporis	Microsoft	68.0
Lesia Hyatt	doloribus hic corporis	Microsoft	75.0
Li Considine	doloribus hic corporis	Microsoft	61.0
Lillie Hamill	doloribus hic corporis	Microsoft	89.0
Lynell Stamm	doloribus hic corporis	Microsoft	66.0
Malvina Zulauf	doloribus hic corporis	Microsoft	38.0
Marna Ritchie	doloribus hic corporis	Microsoft	38.0
Maryanna Medhurst	doloribus hic corporis	Microsoft	60.0
Micheal Jenkins	doloribus hic corporis	Microsoft	83.0
Milagros Lemke	doloribus hic corporis	Microsoft	31.0
Mi Prosacco	doloribus hic corporis	Microsoft	64.0
Myriam Von	doloribus hic corporis	Microsoft	38.0
Myrtle O'Conner	doloribus hic corporis	Microsoft	61.0
Nelson Leannon	doloribus hic corporis	Microsoft	84.0
Ophelia Hermiston	doloribus hic corporis	Microsoft	32.0
Palmira Fay	doloribus hic corporis	Microsoft	42.0
Pearlie McGlynn	doloribus hic corporis	Microsoft	51.0

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