DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Jamison Hagenes	quibusdam sed sit	Apple	42.0
Treena Wolf	repudiandae officiis qui	Google	42.0
Li Considine	animi aperiam tenetur	Google	43.0
Cristopher Dooley	doloribus hic corporis	Microsoft	43.0
Brigid McLaughlin	doloribus hic corporis	Microsoft	43.0
Myriam Von	saepe hic temporibus	Microsoft	43.0
Sylvester Hane	quibusdam sed sit	Apple	43.0
Alise Rolfson	eum amet quia	Google	43.0
Elise Waelchi	suscipit consectetur beatae	Google	43.0
Jackson Kozey	eum amet quia	Google	43.0
Milagros Lemke	suscipit consectetur beatae	Google	43.0
Reinaldo Heidenreich	quibusdam sed sit	Apple	43.0
Jamie Stehr	perspiciatis totam perferendis	Apple	43.0
Beverlee Auer	eum amet quia	Google	43.0
Thaddeus Stanton	quibusdam sed sit	Apple	43.0
Royce Spencer	quibusdam sed sit	Apple	43.0
Cathey Prohaska	animi aperiam tenetur	Google	43.0
Beverlee Auer	odio velit repudiandae	Apple	43.0
Rebecca Rempel	odio velit repudiandae	Apple	43.0
Micheal Jenkins	saepe hic temporibus	Microsoft	43.0
Flavia Will	vitae eum pariatur	Google	43.0
Isidro McCullough	suscipit consectetur beatae	Google	44.0
Dahlia Hilll	repudiandae officiis qui	Google	44.0
Bok Wolf	eum amet quia	Google	44.0
Benita Thompson	saepe hic temporibus	Microsoft	44.0

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>