DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Jeanne Witting	saepe hic temporibus	Microsoft	73.0
Jewell Kreiger	saepe hic temporibus	Microsoft	59.0
Jewell Swaniawski	saepe hic temporibus	Microsoft	40.0
Joelle Hodkiewicz	saepe hic temporibus	Microsoft	92.0
Johnny Spinka	saepe hic temporibus	Microsoft	62.0
Jon Lindgren	saepe hic temporibus	Microsoft	104.0
Juliana Hauck	saepe hic temporibus	Microsoft	37.0
Kaye Greenfelder	saepe hic temporibus	Microsoft	51.0
Kellie Cassin	saepe hic temporibus	Microsoft	31.0
Lesia Hyatt	saepe hic temporibus	Microsoft	84.0
Li Considine	saepe hic temporibus	Microsoft	63.0
Lillie Hamill	saepe hic temporibus	Microsoft	40.0
Lynell Stamm	saepe hic temporibus	Microsoft	28.0
Malvina Zulauf	saepe hic temporibus	Microsoft	82.0
Marna Ritchie	saepe hic temporibus	Microsoft	60.0
Maryanna Medhurst	saepe hic temporibus	Microsoft	71.0
Micheal Jenkins	saepe hic temporibus	Microsoft	61.0
Milagros Lemke	saepe hic temporibus	Microsoft	62.0
Mi Prosacco	saepe hic temporibus	Microsoft	56.0
Myriam Von	saepe hic temporibus	Microsoft	82.0
Myrtle O'Conner	saepe hic temporibus	Microsoft	87.0
Nelson Leannon	saepe hic temporibus	Microsoft	73.0
Ophelia Hermiston	saepe hic temporibus	Microsoft	32.0
Palmira Fay	saepe hic temporibus	Microsoft	89.0
Pearlie McGlynn	saepe hic temporibus	Microsoft	43.0

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>