WiceGrid 3.6.0.pre4 examples

# encoding: utf-8
class ResultsetProcessingsController < ApplicationController
  def index
    @tasks_grid = initialize_grid(Task,
      include: [:priority, :status, :project, :assigned_users],
      order: 'statuses.name',
      name: 'g',
      per_page: 10,
      # :with_paginated_resultset => :process_records,
      custom_order: {
        'tasks.priority_id' => 'priorities.name',
        'tasks.status_id' => 'statuses.position',
        'tasks.project_id' => 'projects.name'
      }

    )

    @one_page_records = []

    @tasks_grid.with_paginated_resultset do |records|
      records.each { |rec| @one_page_records << rec }
    end
  end

  protected

  # def process_records(records)
  #   records.each{|rec| @one_page_records << rec}
  # end
end

.well
  %h2= current_page_title
  %p
    In addition to
    %a{href:  integration_with_application_view_index_path}
      %code current_page_records
    and
    %a{href: integration_with_application_view_index_path}
      %code current_page_records
    helpers
    a callback can be setup in the controller which is executed when a grid page is rendered.
    Though the results of that processing is rendered on page, normally such callbacks are used
    for some kind of background processing. Please notice that the callback is executed
    %em after
    the controller action and thus all controller instance variables have already been injected inti the view,
    that is why the current example has a definition of
    %code @one_page_records
    %em before
    the callback, so that the object is injected into the view and the callback block has access to the object as well.

    The callback can be setup separately as a block:

    :plain
      <pre>
      @grid.with_paginated_resultset do |records|
        ...
      end
      </pre>

    or as an argument of
    %code initialize_grid
    where the value is the name of the method to be invoked:

    :plain
      <pre>
      @grid = initialize_grid(Task,
        with_paginated_resultset: :process_records
      )
      </pre>

= show_code

= render   'grid'

.row-fluid
  .col-md-12
    .well
      = @one_page_records.size
      records on the current page:
      = @one_page_records.map(&:id).to_sentence

<%= grid(@tasks_grid, hide_submit_button: true) do |g|

  g.column name:  'ID', attribute: 'id', filter: false

  g.column name:  'Title', attribute: 'title', auto_reload:  true

  g.column name:  'Priority', attribute: 'priority_id', custom_filter: Priority.to_dropdown, auto_reload:  true do |task|
    task.priority.name if task.priority
  end

  g.column name:  'Status', attribute: 'status_id', custom_filter: Status.to_dropdown, auto_reload:  true  do |task|
    task.status.name if task.status
  end

  g.column name:  'Project Name', attribute: 'project_id', custom_filter: Project.to_dropdown, auto_reload:  true do |task|
    task.project.name if task.project
  end

  g.column  name:  'Archived', attribute: 'archived', auto_reload:  true do |task|
    task.archived? ? 'Yes' : 'No'
  end

  g.column name:  'Added', attribute: 'created_at', auto_reload:  true do |task|
    task.created_at.to_s(:short)
  end

end -%>