Add filters and paging to the workshop materials admin list

dashboard/app/controllers/pd/teacher_application_controller.rb

@@ -1,4 +1,6 @@
 class Pd::TeacherApplicationController < ApplicationController
+  include Pd::PageHelper
+
   EMAIL_TEMPLATE_PREFIX = '2017_teacher_application_'.freeze
   DEFAULT_MANAGE_PAGE_SIZE = 25
 

dashboard/app/controllers/pd/workshop_material_orders_controller.rb

@@ -1,4 +1,8 @@
 class Pd::WorkshopMaterialOrdersController < ApplicationController
+  include Pd::PageHelper
+
+  DEFAULT_PAGE_SIZE = 25
+
   load_and_authorize_resource :enrollment, class: 'Pd::Enrollment', find_by: 'code',
     id_param: :enrollment_code
 
@@ -36,9 +40,29 @@ def admin_index
       order_errors: @workshop_material_orders.with_order_errors.count
     }
 
+    # Search emails
+    @workshop_material_orders = @workshop_material_orders.search_emails(params[:email]) if params[:email]
+
+    # filter: [ordered | shipped | errors]
+    if params[:filter]
+      case params[:filter].try(:downcase)
+        when 'ordered'
+          @workshop_material_orders = @workshop_material_orders.successfully_ordered
+        when 'shipped'
+          @workshop_material_orders = @workshop_material_orders.shipped
+        when 'errors'
+          @workshop_material_orders = @workshop_material_orders.with_order_errors
+        else
+          params.delete :filter
+      end
+    end
+
+    @workshop_material_orders = @workshop_material_orders.page(page).per(page_size)
     view_options(full_width: true)
   end
 
+  private
+
   def workshop_material_order_params
     params.require(:pd_workshop_material_order).permit(
       :school_or_company,
@@ -50,4 +74,13 @@ def workshop_material_order_params
       :phone_number
     )
   end
+
+  def page
+    params[:page] || 1
+  end
+
+  def page_size
+    return DEFAULT_PAGE_SIZE unless params.key? :page_size
+    params[:page_size] == 'All' ? @workshop_material_orders.count : params[:page_size]
+  end
 end

dashboard/app/helpers/pd/page_helper.rb

@@ -0,0 +1,48 @@
+# Helper for simple paging controls
+module Pd::PageHelper
+  # Renders a page header with paging buttons and a page size drop down.
+  # Each page button is a link to the same controller action with the appropriate page: param,
+  # and existing values of permitted_params.
+  # Each page_size button is similar, but with page_size: set.
+  # @param collection_name [String] Name to be displayed in the page header, e.g. "Applications"
+  # @param collection [ActiveRecord::Relation] collection of models with paging applied
+  # @param permitted_params [Array<String, Symbol>] params to be preserved in paging urls
+  def page_header(collection_name, collection, permitted_params: [])
+    current_page = collection.current_page
+
+    base_params = params.permit(permitted_params + [:page_size])
+    page_buttons = [
+      new_page_button('<<', base_params.merge(page: 1), disabled: collection.first_page?),
+      new_page_button('<', base_params.merge(page: current_page - 1), disabled: collection.first_page?),
+      new_page_button('>', base_params.merge(page: current_page + 1), disabled: collection.last_page?),
+      new_page_button('>>', base_params.merge(page: collection.total_pages), disabled: collection.last_page?)
+    ]
+
+    page_size = params[:page_size] || collection.limit_value
+    page_size_buttons = %w(25 50 All).map do |page_size_option|
+      new_page_size_button page_size_option, base_params
+    end
+
+    locals = {
+      collection: collection,
+      collection_name: collection_name,
+      page_buttons: page_buttons,
+      page_size: page_size,
+      page_size_buttons: page_size_buttons
+    }
+
+    render partial: 'pd/page_header', locals: locals
+  end
+
+  def new_page_button(text, params, disabled: false)
+    link_to text, params, class: btn_class(disabled: disabled)
+  end
+
+  def new_page_size_button(page_size, base_params)
+    link_to page_size, base_params.merge(page_size: page_size)
+  end
+
+  def btn_class(disabled: false)
+    "btn btn-default#{(disabled && ' disabled').presence}"
+  end
+end

dashboard/app/models/pd/workshop_material_order.rb

@@ -90,6 +90,9 @@ def allowed_course?
     scope :successfully_ordered, -> {where.not(order_id: nil)}
     scope :shipped, -> {where(order_status: MimeoRestClient::STATUS_SHIPPED)}
     scope :with_order_errors, -> {where.not(order_error: nil)}
+    scope :search_emails, ->(email_substring) do
+      joins(:enrollment).where('pd_enrollments.email LIKE ?', "%#{email_substring.strip.downcase}%")
+    end
 
     def full_address
       [street, apartment_or_suite, city, state, zip_code].compact.join(', ')

dashboard/app/views/pd/_page_header.html.haml

@@ -0,0 +1,24 @@
+%h5.page-header
+  Page
+  = local_assigns[:collection].current_page
+  of
+  = local_assigns[:collection].total_pages
+  (
+  = local_assigns[:collection].current_page
+  of
+  = local_assigns[:collection].total_count
+  = local_assigns[:collection_name].pluralize
+  )
+
+  - local_assigns[:page_buttons].each do |page_button|
+    = page_button
+
+  %span.dropdown{style: 'position: absolute; right: 25px'}
+    Show
+    %button.btn.btn-default.dropdown-toggle{'data-toggle': 'dropdown'}
+      = local_assigns[:page_size]
+      %span.caret
+    %ul.dropdown-menu
+      - local_assigns[:page_size_buttons].each do |page_size_button|
+        %li
+          = page_size_button

dashboard/app/views/pd/teacher_application/manage.html.haml

@@ -25,26 +25,7 @@
       Filter:
       = params[:q]
 
-  %h5
-    - base_params = params.permit(:q, :page_size)
-    - current_page = @teacher_applications.current_page
-    - total_pages = @teacher_applications.total_pages
-    - total_count = @teacher_applications.total_count
-    = "Page #{current_page} of #{total_pages}"
-    = "(#{@teacher_applications.count} of #{total_count} applications)"
-    = link_to '<<', base_params.merge(page: 1), class: 'btn btn-default', disabled: @teacher_applications.first_page?
-    = link_to '<', base_params.merge(page: current_page - 1), class: 'btn btn-default', disabled: @teacher_applications.first_page?
-    = link_to '>', base_params.merge(page: current_page + 1), class: 'btn btn-default', disabled: @teacher_applications.last_page?
-    = link_to '>>', base_params.merge(page: total_pages), class: 'btn btn-default', disabled: @teacher_applications.last_page?
-    %span.dropdown{style: 'position: absolute; right: 25px'}
-      Show
-      %button.btn.btn-default.dropdown-toggle{'data-toggle': 'dropdown'}
-        = params[:page_size] || @teacher_applications.limit_value
-        %span.caret
-      %ul.dropdown-menu
-        - %w(25 50 All).each do |page_size|
-          %li
-            = link_to page_size, base_params.merge(page_size: page_size)
+  = page_header 'applications', @teacher_applications, permitted_params: [:q]
 
   %table.table.table-hover.table-condensed.table-auto-width
     %thead

dashboard/app/views/pd/workshop_material_orders/admin_index.html.haml

@@ -17,8 +17,37 @@
             %td= value
 
   %h3 Orders
+  %label Filter
+  %span.dropdown
+    %button.btn.btn-default.dropdown-toggle{'data-toggle': 'dropdown'}
+      = params[:filter] || 'None'
+      %span.caret
+    %ul.dropdown-menu
+      - %w(None Ordered Shipped Errors).each do |filter_option|
+        %li
+        = link_to filter_option, params: {filter: filter_option}
+
+  %label Search Email
+  = form_tag url_for(action: 'admin_index'), method: 'get', class: 'form-inline', enforce_utf8: false do
+    = text_field_tag :email, params[:email], class: 'form-control'
+    %button.btn{type: 'submit'}
+      %i.fa.fa-search
+    - if params[:email]
+      = link_to 'Remove Filter', nil, params: {}, class: 'btn btn-default'
+
+  %h4
+    - if params[:email]
+      Email:
+      = params[:email]
+    - if params[:filter]
+      Filter:
+      = params[:filter]
+
+  = page_header 'orders', @workshop_material_orders, permitted_params: [:email, :filter]
+
   %table.table.table-hover.table-condensed.table-auto-width
     %thead
+      %th Id
       %th Created
       %th Email
       %th Name
@@ -29,6 +58,7 @@
     %tbody
       - @workshop_material_orders.each do |order|
         %tr
+          %td= order.id
           %td= order.created_at.to_date
           %td= order.enrollment.email
           %td= order.enrollment.full_name

dashboard/test/controllers/pd/workshop_material_orders_controller_test.rb

@@ -88,6 +88,23 @@ class Pd::WorkshopMaterialOrdersControllerTest < ::ActionController::TestCase
   test_user_gets_response_for :admin_index, user: :admin, response: :success
   test_user_gets_response_for :admin_index, user: :teacher, response: :forbidden
 
+  test 'admin index has page header' do
+    sign_in create(:admin)
+    get :admin_index
+    assert_select 'h5.page-header' do
+      assert_select 'a.btn', '<<'
+      assert_select 'a.btn', '<'
+      assert_select 'a.btn', '>'
+      assert_select 'a.btn', '>>'
+
+      assert_select 'span.dropdown', /Show/ do
+        assert_select 'a', '25'
+        assert_select 'a', '50'
+        assert_select 'a', 'All'
+      end
+    end
+  end
+
   private
 
   def assert_thanks

dashboard/test/helpers/pd/page_helper_test.rb

@@ -0,0 +1,129 @@
+require 'test_helper'
+
+class Pd::PageHelperTest < ActionView::TestCase
+  include Pd::PageHelper
+
+  test 'btn_class default' do
+    assert_equal 'btn btn-default', btn_class
+  end
+
+  test 'btn_class disabled' do
+    assert_equal 'btn btn-default disabled', btn_class(disabled: true)
+  end
+
+  test 'new_page_button' do
+    expects(:link_to).with('<', {page: 1}, class: 'btn btn-default')
+    new_page_button '<', page: 1
+  end
+
+  test 'new_page_size_button' do
+    expects(:link_to).with(50, {key: 'value', page_size: 50})
+    new_page_size_button 50, {key: 'value'}
+  end
+
+  test 'page_header first page' do
+    assert_page_header(
+      {
+        current_page: 1,
+        first_page?: true,
+        last_page?: false,
+        total_pages: 10,
+        limit_value: 25
+      },
+      [
+        {text: '<<', page: 1, disabled: true},
+        {text: '<', page: 0, disabled: true},
+        {text: '>', page: 2, disabled: false},
+        {text: '>>', page: 10, disabled: false}
+      ]
+    )
+  end
+
+  test 'page_header middle page' do
+    assert_page_header(
+      {
+        current_page: 5,
+        first_page?: false,
+        last_page?: false,
+        total_pages: 10,
+        limit_value: 25
+      },
+      [
+        {text: '<<', page: 1, disabled: false},
+        {text: '<', page: 4, disabled: false},
+        {text: '>', page: 6, disabled: false},
+        {text: '>>', page: 10, disabled: false}
+      ]
+    )
+  end
+
+  test 'page_header last page' do
+    assert_page_header(
+      {
+        current_page: 10,
+        first_page?: false,
+        last_page?: true,
+        total_pages: 10,
+        limit_value: 25
+      },
+      [
+        {text: '<<', page: 1, disabled: false},
+        {text: '<', page: 9, disabled: false},
+        {text: '>', page: 11, disabled: true},
+        {text: '>>', page: 10, disabled: true}
+      ]
+    )
+  end
+
+  private
+
+  # Sets up expectations for, and then calls, page_header
+  # @param collection_params [Hash] param hash for mock collection class
+  #   Expected keys are [:current_page, :first_page?, :last_page?, :total_pages, :limit_value]
+  # @param page_button_params [Array<Hash>] An array of hashes, each with keys
+  #   [:text, :page, :disabled] representing expected params to the new_page_button method
+  def assert_page_header(collection_params, page_button_params)
+    collection = OpenStruct.new(collection_params)
+    page_buttons = set_page_button_expectations page_button_params
+
+    mock_params = mock
+    stubs(:params).returns(mock_params)
+    mock_params.expects(:permit).with([:allow, :page_size]).returns({})
+    mock_params.expects(:[], :page_size).returns(nil)
+
+    page_size_buttons = 3.times.map {mock}
+    expects(:new_page_size_button).with('25', {}).returns(page_size_buttons[0])
+    expects(:new_page_size_button).with('50', {}).returns(page_size_buttons[1])
+    expects(:new_page_size_button).with('All', {}).returns(page_size_buttons[2])
+
+    expects(:render).with(partial: 'pd/page_header', locals:
+      {
+        collection: collection,
+        collection_name: 'collection name',
+        page_buttons: page_buttons,
+        page_size: 25,
+        page_size_buttons: page_size_buttons
+      }
+    )
+
+    # Call page_header helper method which should meet the above expectations
+    page_header 'collection name', collection, permitted_params: [:allow]
+  end
+
+  # Creates expectations for new_page_button method calls with params based on the supplied param set,
+  # and returns the generated mock buttons
+  # @param buttons_param_set [Array<Hash>] An array of hashes, each with keys
+  #   [:text, :page, :disabled] representing expected params to the new_page_button method
+  # @return array of mock buttons that will be returned from the expectations
+  def set_page_button_expectations(buttons_param_set)
+    buttons_param_set.map do |button_params|
+      text = button_params[:text]
+      page = button_params[:page]
+      disabled = button_params[:disabled]
+
+      mock.tap do |mock_button|
+        expects(:new_page_button).with(text, {page: page}, disabled: disabled).returns(mock_button)
+      end
+    end
+  end
+end

dashboard/test/models/pd/workshop_material_order_test.rb

@@ -311,4 +311,18 @@ class Pd::WorkshopMaterialOrderTest < ActiveSupport::TestCase
     order.user = nil
     refute order.valid?
   end
+
+  test 'search_emails' do
+    included = [
+      create(:pd_workshop_material_order, enrollment: create(:pd_enrollment, email: 'included1@example.net')),
+      create(:pd_workshop_material_order, enrollment: create(:pd_enrollment, email: 'included2@example.net')),
+      create(:pd_workshop_material_order, enrollment: create(:pd_enrollment, email: 'IncludedWithMismatchedCase@example.net'))
+    ]
+
+    # excluded
+    create(:pd_workshop_material_order, enrollment: create(:pd_enrollment, email: 'excluded@example.net'))
+
+    found = Pd::WorkshopMaterialOrder.search_emails('include')
+    assert_equal included.map(&:id).sort, found.pluck(:id).sort
+  end
 end