DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Milagros Lemke	quibusdam sed sit	Apple	62.0
Milagros Lemke	repudiandae officiis qui	Google	35.0
Milagros Lemke	saepe hic temporibus	Microsoft	57.0
Milagros Lemke	suscipit consectetur beatae	Google	43.0
Milagros Lemke	vitae eum pariatur	Google	69.0
Mi Prosacco	animi aperiam tenetur	Google	71.0
Mi Prosacco	doloribus hic corporis	Microsoft	92.0
Mi Prosacco	eum amet quia	Google	41.0
Mi Prosacco	odio velit repudiandae	Apple	60.0
Mi Prosacco	perspiciatis totam perferendis	Apple	39.0
Mi Prosacco	quibusdam sed sit	Apple	67.0
Mi Prosacco	repudiandae officiis qui	Google	68.0
Mi Prosacco	saepe hic temporibus	Microsoft	76.0
Mi Prosacco	suscipit consectetur beatae	Google	37.0
Mi Prosacco	vitae eum pariatur	Google	130.0
Myriam Von	animi aperiam tenetur	Google	30.0
Myriam Von	doloribus hic corporis	Microsoft	51.0
Myriam Von	eum amet quia	Google	66.0
Myriam Von	odio velit repudiandae	Apple	76.0
Myriam Von	perspiciatis totam perferendis	Apple	32.0
Myriam Von	quibusdam sed sit	Apple	53.0
Myriam Von	repudiandae officiis qui	Google	88.0
Myriam Von	saepe hic temporibus	Microsoft	43.0
Myriam Von	suscipit consectetur beatae	Google	152.0
Myriam Von	vitae eum pariatur	Google	41.0

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>