Mage Titans USA 2016 - Igor Melnykov - Staging and Preview

Agenda
1. Overview
2. Staging Architecture
3. Sample Module with Staging
4. QA

Overview

Making Content Changes on Magento EE < 2.1
Make
changes on
separate
copy of a
store
Make sure
changes look
good
On scheduled
date replicate
changes on
live store
Make sure
changes look
good
Troubleshoot
and fix issues
on live site if
not replicated
correctly

Staging and Preview
Make
changes in
one place
Make sure
changes look
good using
preview
Schedule
when
changes
applied
Changes
applied
automatically

Staging Campaigns
• Create, edit, and delete updates to:
– Products – prices, page designs,
descriptions, images, and more
– Categories – menu and display options,
which categories are enabled
– CMS Content – page content and layouts
– Promotions – catalog and shopping cart
price rules
– Additional entities with customization
• Group individual updates into
campaigns for easier management
• Schedule an unlimited number of
updates
Updating product content with quick access to
other scheduled changes

Staging Dashboard
• Manage all updates from a single
dashboard with grid and timeline
views
• Easily monitor key campaign
information:
– Start and end dates
– Campaign components
– Campaign status
• Drill down into campaigns to preview,
make edits or delete updates
Dashboard grid view – complete list of all campaigns
and their components within a specified date range

Staging Timeline Dashboard
Dashboard timeline view – shows all
current and upcoming campaigns in a
calendar, making it easy to confirm
you have a coordinated
merchandising strategy in place

Preview Updates
• Preview and verify updates by date and store view
• Screen the user experience through checkout without placing orders
• Share links with others to preview pages

Staging Architecture

The Big Picture
Changes to Schema
From Condition
Renderer
Entity Manager
Sequence
Manager
Version Manager
Persistence Operations for Stageable Entities
*Staging Modules Cron Jobs
Business
Logic
Persistence
Layer
Database
Configurable Ui Elements Ui

Database Schema
row_id PK int
entity_id int
created_in int
updated_in int
sku varchar
… …
value_id int
attribtue_id int
store_id int
row_id int
value varchar
catalog_product_entit
y_varchar
catalog_product_entit
y
product_id int
website_id int
catalog_product
_website
Stagable attributes
and relations
linked by row_id
Non stagable
attributes
linked by
entity_id
(sequence id)
id bigint
start_time datetime
name varchar
description int
rollback_id bigint
is_campaign tinyint
is_rollback tinyint
moved_to bigint
stagign_update
sequence_
value
int
sequence_product

Entity Version
created_in – version from which update is active, default 1
updated_in – version to which update is active, default 2147483647
1 and 2147483647 are left and right margins for the version
+------+---------+----------+----------+---------+-----+-------------------------------+
|row_id|entity_id|created_in|updated_in|name |price|short_description |
+------+---------+----------+----------+---------+-----+-------------------------------+
| 1| 1| 1| 999|Product 1|10.99|Product 1 short description |
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+

Select Current Version
staging_update
+---+-------------------+-----------------------------------+
|id | start_time|name |
+---+-------------------+-----------------------------------+
|100|2016-08-31 04:05:00|Update 1 for Product 1 |
+---+-------------------+-----------------------------------+
+---+-------------------+-----------------------------------+
+-----------------------+-----------------------------------+
SELECT * FROM staging_update WHERE start_time <= '2016-09-12 04:05:00' DESC
LIMIT 1
2016-09-12 04:05:00 is current date and time

Select Active Updates
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+
| 4| 2| 300| 999|Product 2|12.00|Product 2 new short description|
+------+---------+----------+----------+---------+-----+-------------------------------+
1 300200 999
Product 1
Product 2
Price updated Description updated
SELECT * FROM catalog_product_entity WHERE created_in <= 200 AND updated_in > 200

Permanent Update
catalog_product_entity
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+
catalog_product_entity – after creating permanent update
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+
staging_update
+---+-----------------------------------+-----------+
|id |name |is_rollback|
+---+-----------------------------------+-----------+
|200|Update for Product 1 | 0|
+---------------------------------------+-----------+

Temporary Update
catalog_product_entity – after creating temporary update
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+
+------+---------+----------+----------+---------+-----+-------------------------------+
staging_update
+---+-----------------------------------+-----------+
|id |name |is_rollback|
+---+-----------------------------------+-----------+
|200|Update for Product 1 | 0|
+---------------------------------------+-----------+
|300|Rollback for “Update for Product 1”| 1|
+---------------------------------------+-----------+

Entity Manager
Entity Manager
Operations
Main Entity EAV Attributes
Relation and
Extension
Attributes
Read, Create, Update,
Delete, CheckIfExists
Persistence of
main entity
Persistence of
EAV attributes
MagentoFrameworkEntityManager
Handlers
Persistence of related and
extension attributes,
delegates all work to
handlers

Operations for Staging
• Redefined in the DI for each stageable entity
• In addition to persistence of main entity perform additional actions
– Manage campaigns
– Manage updates

From SQL Condition Renderer
You don’t need to specify active version, MagentoStagingModelSelectFromRenderer
modifies select queries and you always get active version in application.
SELECT * FROM catalog_product_entity WHERE created_in <= version AND
updated_in > version
Load entity by sequence id (in our case, for product - entity_id), not row_id

Version Manager and Sequence Manager
Version Manager – get current version in the system
Sequence Manager – generates sequence id, unique identifier for all of
the versions of the same entity

Cron Jobs
The following actions executed by cron jobs
• Apply updates – make updates visible when they become active
• Move updates from one campaign to another – when you change
effective dates for the campaign, Magento creates new campaign
and move updates to the new campaign using cron
• Clean up old updates

How Does Preview Work
• Version Manager provides requested version
• Calculates page data on fly, it's always up to date
• Preview uses all system cache types, except FPC (Full Page
Cache)
• Indexes (as a database cache) also skipped at preview

Sample Module with
Staging

Requirements
• Need to be able display and manage blog posts
• Post need to have the following fields: title, description
• Module should work in both Community and Enterprise editions
• Enterprise edition need to allow
– Schedule updates for posts
– See upcoming updates in staging dashboard
– Preview changes

Persistence
• Different database schema in Community and Enterprise
• Different configuration for Entity Manager
• Staging specific operations for Entity Manager instead of default
ones

Ui
• Configure and add to form reusable staging Ui components
– Upcoming updates form modal and grid
– Edit update form
– Select update grid on edit update form
– Remove form
– Select update grid on remove form
• Add controllers to handle save and delete operations for updates

API
Provide API for managing updates
interface PostStagingInterface
{
public function schedule(PostInterface $post, $version,
$arguments = []);
public function unschedule(PostInterface $post, $version);
}

Resources

Resources
• https://github.com/melnikovi/magento2-samples
• http://devdocs.magento.com/guides/v2.1/extension-dev-
guide/staging/Staging.html

Q&A

Thank You
imelnikov@magento.com

Mage Titans USA 2016 - Igor Melnykov - Staging and Preview

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