DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Adrienne Eichmann	quibusdam sed sit	Apple	37.0
Alex Legros	quibusdam sed sit	Apple	66.0
Alise Rolfson	quibusdam sed sit	Apple	42.0
Almeta Adams	quibusdam sed sit	Apple	62.0
Arnita Smith	quibusdam sed sit	Apple	74.0
Ashleigh Kris	quibusdam sed sit	Apple	48.0
Awilda Schumm	quibusdam sed sit	Apple	43.0
Benita Thompson	quibusdam sed sit	Apple	63.0
Beverlee Auer	quibusdam sed sit	Apple	81.0
Blake Hoppe	quibusdam sed sit	Apple	83.0
Bok Wolf	quibusdam sed sit	Apple	79.0
Bong Witting	quibusdam sed sit	Apple	67.0
Bridgett Reilly	quibusdam sed sit	Apple	61.0
Brigid McLaughlin	quibusdam sed sit	Apple	40.0
Britney Ruecker	quibusdam sed sit	Apple	82.0
Carlota Gottlieb	quibusdam sed sit	Apple	30.0
Cathey Prohaska	quibusdam sed sit	Apple	92.0
Cherly Kovacek	quibusdam sed sit	Apple	64.0
Claudette Hagenes	quibusdam sed sit	Apple	41.0
Clifton Hintz	quibusdam sed sit	Apple	98.0
Crissy Brekke	quibusdam sed sit	Apple	87.0
Cristopher Dooley	quibusdam sed sit	Apple	63.0
Dahlia Hilll	quibusdam sed sit	Apple	54.0
Dania Crona	quibusdam sed sit	Apple	83.0
Deja Corkery	quibusdam sed sit	Apple	95.0

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>