DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Jeanne Witting	saepe hic temporibus	Microsoft	89.0
Jewell Kreiger	saepe hic temporibus	Microsoft	46.0
Jewell Swaniawski	saepe hic temporibus	Microsoft	78.0
Joelle Hodkiewicz	saepe hic temporibus	Microsoft	67.0
Johnny Spinka	saepe hic temporibus	Microsoft	78.0
Jon Lindgren	saepe hic temporibus	Microsoft	58.0
Juliana Hauck	saepe hic temporibus	Microsoft	67.0
Kaye Greenfelder	saepe hic temporibus	Microsoft	54.0
Kellie Cassin	saepe hic temporibus	Microsoft	66.0
Lesia Hyatt	saepe hic temporibus	Microsoft	52.0
Li Considine	saepe hic temporibus	Microsoft	38.0
Lillie Hamill	saepe hic temporibus	Microsoft	73.0
Lynell Stamm	saepe hic temporibus	Microsoft	61.0
Malvina Zulauf	saepe hic temporibus	Microsoft	55.0
Marna Ritchie	saepe hic temporibus	Microsoft	66.0
Maryanna Medhurst	saepe hic temporibus	Microsoft	55.0
Micheal Jenkins	saepe hic temporibus	Microsoft	43.0
Milagros Lemke	saepe hic temporibus	Microsoft	57.0
Mi Prosacco	saepe hic temporibus	Microsoft	76.0
Myriam Von	saepe hic temporibus	Microsoft	43.0
Myrtle O'Conner	saepe hic temporibus	Microsoft	42.0
Nelson Leannon	saepe hic temporibus	Microsoft	80.0
Ophelia Hermiston	saepe hic temporibus	Microsoft	69.0
Palmira Fay	saepe hic temporibus	Microsoft	92.0
Pearlie McGlynn	saepe hic temporibus	Microsoft	76.0

Grid:

class TimeEntriesGrid < BaseGrid

  #
  # 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 => lambda {Project.all.map {|p| [p.name, p.id]}},
    :multiple => true,
    :include_blank => false
  ) do |value|
    self.where(:time_entries => {:project_id => value})
  end


  filter(:year, :enum,
         :select => lambda { TimeEntry.all.any? ? (TimeEntry.minimum(:date).year..TimeEntry.maximum(:date).year) : []},
    :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 => Date::MONTHNAMES[1..12].enum_for(:each_with_index).collect {|name, index| [name, index + 1]},
         :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)")

end

Controller:

class TimeEntriesController < ApplicationController

  def index
    @time_entries_grid = TimeEntriesGrid.new(params[:g]) do |scope|
      scope.page(params[:page] )
    end
  end
end

View:


<h3>Time Entries Grid</h3>


<div class="left">
  <%= datagrid_form_for @time_entries_grid, url: time_entries_path %>
  <br/>

  <%= datagrid_table(@time_entries_grid) %>
  <%= paginate @time_entries_grid.assets %>

</div>

<div class="right">
  <%= render :partial => "shared/source", :object => @time_entries_grid %>
</div>