DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Milagros Lemke	quibusdam sed sit	Apple	66.0
Milagros Lemke	repudiandae officiis qui	Google	38.0
Milagros Lemke	saepe hic temporibus	Microsoft	84.0
Milagros Lemke	suscipit consectetur beatae	Google	77.0
Milagros Lemke	vitae eum pariatur	Google	95.0
Mi Prosacco	animi aperiam tenetur	Google	59.0
Mi Prosacco	doloribus hic corporis	Microsoft	55.0
Mi Prosacco	eum amet quia	Google	62.0
Mi Prosacco	odio velit repudiandae	Apple	55.0
Mi Prosacco	perspiciatis totam perferendis	Apple	72.0
Mi Prosacco	quibusdam sed sit	Apple	66.0
Mi Prosacco	repudiandae officiis qui	Google	51.0
Mi Prosacco	saepe hic temporibus	Microsoft	48.0
Mi Prosacco	suscipit consectetur beatae	Google	42.0
Mi Prosacco	vitae eum pariatur	Google	43.0
Myriam Von	animi aperiam tenetur	Google	59.0
Myriam Von	doloribus hic corporis	Microsoft	55.0
Myriam Von	eum amet quia	Google	34.0
Myriam Von	odio velit repudiandae	Apple	62.0
Myriam Von	perspiciatis totam perferendis	Apple	74.0
Myriam Von	quibusdam sed sit	Apple	54.0
Myriam Von	repudiandae officiis qui	Google	64.0
Myriam Von	saepe hic temporibus	Microsoft	78.0
Myriam Von	suscipit consectetur beatae	Google	65.0
Myriam Von	vitae eum pariatur	Google	59.0

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>