DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Myriam Von	animi aperiam tenetur	Google	61.0
Myriam Von	doloribus hic corporis	Microsoft	55.0
Myriam Von	eum amet quia	Google	109.0
Myriam Von	odio velit repudiandae	Apple	90.0
Myriam Von	perspiciatis totam perferendis	Apple	42.0
Myriam Von	quibusdam sed sit	Apple	68.0
Myriam Von	repudiandae officiis qui	Google	62.0
Myriam Von	saepe hic temporibus	Microsoft	50.0
Myriam Von	suscipit consectetur beatae	Google	87.0
Myriam Von	vitae eum pariatur	Google	44.0
Mi Prosacco	animi aperiam tenetur	Google	48.0
Mi Prosacco	doloribus hic corporis	Microsoft	100.0
Mi Prosacco	eum amet quia	Google	49.0
Mi Prosacco	odio velit repudiandae	Apple	86.0
Mi Prosacco	perspiciatis totam perferendis	Apple	88.0
Mi Prosacco	quibusdam sed sit	Apple	70.0
Mi Prosacco	repudiandae officiis qui	Google	64.0
Mi Prosacco	saepe hic temporibus	Microsoft	61.0
Mi Prosacco	suscipit consectetur beatae	Google	65.0
Mi Prosacco	vitae eum pariatur	Google	74.0
Milagros Lemke	animi aperiam tenetur	Google	56.0
Milagros Lemke	doloribus hic corporis	Microsoft	33.0
Milagros Lemke	eum amet quia	Google	78.0
Milagros Lemke	odio velit repudiandae	Apple	86.0
Milagros Lemke	perspiciatis totam perferendis	Apple	68.0

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>