DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Jeanne Witting	saepe hic temporibus	Microsoft	37.0
Jewell Kreiger	saepe hic temporibus	Microsoft	75.0
Jewell Swaniawski	saepe hic temporibus	Microsoft	39.0
Joelle Hodkiewicz	saepe hic temporibus	Microsoft	83.0
Johnny Spinka	saepe hic temporibus	Microsoft	57.0
Jon Lindgren	saepe hic temporibus	Microsoft	88.0
Juliana Hauck	saepe hic temporibus	Microsoft	80.0
Kaye Greenfelder	saepe hic temporibus	Microsoft	43.0
Kellie Cassin	saepe hic temporibus	Microsoft	87.0
Lesia Hyatt	saepe hic temporibus	Microsoft	69.0
Li Considine	saepe hic temporibus	Microsoft	53.0
Lillie Hamill	saepe hic temporibus	Microsoft	52.0
Lynell Stamm	saepe hic temporibus	Microsoft	49.0
Malvina Zulauf	saepe hic temporibus	Microsoft	74.0
Marna Ritchie	saepe hic temporibus	Microsoft	88.0
Maryanna Medhurst	saepe hic temporibus	Microsoft	36.0
Micheal Jenkins	saepe hic temporibus	Microsoft	51.0
Milagros Lemke	saepe hic temporibus	Microsoft	45.0
Mi Prosacco	saepe hic temporibus	Microsoft	61.0
Myriam Von	saepe hic temporibus	Microsoft	50.0
Myrtle O'Conner	saepe hic temporibus	Microsoft	52.0
Nelson Leannon	saepe hic temporibus	Microsoft	83.0
Ophelia Hermiston	saepe hic temporibus	Microsoft	47.0
Palmira Fay	saepe hic temporibus	Microsoft	38.0
Pearlie McGlynn	saepe hic temporibus	Microsoft	97.0

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>