DatagridDemo

Developer ↑ ↓	Project ↑ ↓	Company ↑ ↓	Report hours ↑ ↓
Jeanne Witting	quibusdam sed sit	Apple	50.0
Jewell Kreiger	quibusdam sed sit	Apple	65.0
Jewell Swaniawski	quibusdam sed sit	Apple	97.0
Joelle Hodkiewicz	quibusdam sed sit	Apple	78.0
Johnny Spinka	quibusdam sed sit	Apple	14.0
Jon Lindgren	quibusdam sed sit	Apple	45.0
Juliana Hauck	quibusdam sed sit	Apple	70.0
Kaye Greenfelder	quibusdam sed sit	Apple	37.0
Kellie Cassin	quibusdam sed sit	Apple	39.0
Lesia Hyatt	quibusdam sed sit	Apple	55.0
Li Considine	quibusdam sed sit	Apple	81.0
Lillie Hamill	quibusdam sed sit	Apple	50.0
Lynell Stamm	quibusdam sed sit	Apple	45.0
Malvina Zulauf	quibusdam sed sit	Apple	105.0
Marna Ritchie	quibusdam sed sit	Apple	35.0
Maryanna Medhurst	quibusdam sed sit	Apple	114.0
Micheal Jenkins	quibusdam sed sit	Apple	77.0
Milagros Lemke	quibusdam sed sit	Apple	54.0
Mi Prosacco	quibusdam sed sit	Apple	28.0
Myriam Von	quibusdam sed sit	Apple	86.0
Myrtle O'Conner	quibusdam sed sit	Apple	77.0
Nelson Leannon	quibusdam sed sit	Apple	68.0
Ophelia Hermiston	quibusdam sed sit	Apple	107.0
Palmira Fay	quibusdam sed sit	Apple	44.0
Pearlie McGlynn	quibusdam sed sit	Apple	25.0

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>