DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Sixta Bashirian	suscipit consectetur beatae	Google	91.0
Jamie Stehr	suscipit consectetur beatae	Google	91.0
Treena Wolf	saepe hic temporibus	Microsoft	91.0
Alex Legros	animi aperiam tenetur	Google	91.0
Palmira Fay	suscipit consectetur beatae	Google	90.0
Huong McKenzie	repudiandae officiis qui	Google	90.0
Blake Hoppe	odio velit repudiandae	Apple	90.0
Jewell Swaniawski	doloribus hic corporis	Microsoft	90.0
Elisa Wintheiser	repudiandae officiis qui	Google	90.0
Myrtle O'Conner	vitae eum pariatur	Google	90.0
Dorthey Turner	perspiciatis totam perferendis	Apple	90.0
Crissy Brekke	suscipit consectetur beatae	Google	90.0
Arnita Smith	vitae eum pariatur	Google	90.0
Lillie Hamill	perspiciatis totam perferendis	Apple	89.0
Royce Spencer	doloribus hic corporis	Microsoft	89.0
Wen Daniel	animi aperiam tenetur	Google	89.0
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Cherly Kovacek	perspiciatis totam perferendis	Apple	89.0
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Ashleigh Kris	saepe hic temporibus	Microsoft	89.0
Felisa Jaskolski	quibusdam sed sit	Apple	88.0
Grace Kris	saepe hic temporibus	Microsoft	88.0

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>