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art & technology
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community & work
Lashing
Lashing
[lash-ing] verb
1. to secure items together in a somewhat rigid manner
Lashing
- non-permanent
- utilitarian
- improvised
- re-usable materials
- methodical
Lashing vs. Duct Tape
Duct Tape
- non-permanent
- utilitarian
- improvised
re-usable materialsmethodical
Duct Tape!
ECA
Custom Code
ECA
Declarative over Imperative
Describe the functionality you want instead of hard coding it.
Would you rather order a sandwich or have to write a step by step tutorial for how to make a sandwich before you can order it?
Maintainability
Fewer moving parts, fewer security patches. Fewer things become obsolete when Drupal gets a major version.
The Phone Loophole
I could walk you through changing things over the phone.
Change Business Logic without a
deploy
Promotions, deal of the day, move at the speed of thought.
If you have true CI/CD this is less of an issue.
Drupal is not about writing code
Drupal is all about functionality
"using the internet to eliminate middlemen"
Dries Buytaert
the programmer is a middleman between your data and your business
not knowing how to code can be as bad as having as having a middle man
How to: ECA
1. Deconstruct
2. Modify
3. Construct
4. Compose
5. Trigger
Deconstruct
Deconstruct?
Deconstruct!
Deconstruct!
Deconstruct!
1. when this Event happens
2. if this
Condition is met
3a. do this Action
3b. or do this
Action
Event:
Condition:
Action:
before I leave for work
if there are dark clouds in the sky
bring the umbrella from the hall
Event:
Condition:
Action:
after I leave for work
if the day is not Friday
get credit card from wallet
purchase coffee with credit card
if the time is before 8:45am
"After 20 minutes of Inactivity,
Remind User of Empty Shopping Cart"
Modify
(demo)
"Woah, not sure what this model does..."
"I can edit this message though."
Construct
(demo)
If I unpublish a node,
notify all the commenters
What Event?
Saving a node
What Condition?
If it's unpublished
What Action?
Send a message to each commenter
- Load a list of all comments
- Get one item from the list
- Email the Author
- Load Next Item? (later)
/admin/config/workflow/eca/add
1. Name your Model
2. Add a description
/admin/config/workflow/eca/add
3. Circle = Event
"When this happens..."
4. I have an event,
give it a Name
5. Choose a Template
6. Update content entity
"When *this* happens..."
7. Entity Type = Content
Bundle = Article
Our first
"Action"
Always Start with
Documentation
Templates Once You Sketch Things Out
Keep Sketching
Keep Documenting
Keep Templating
(if you want)
What about unpublished?
This is the "Condition"
from Event-Condition-Action
Event, Condition and Action
...but only emails the first commenter?
I've Pressed Them All
Except One...
Gateway is where
a branch or a loop
starts
Adding the Gateway is the
final form for our Model
to loop over all the comments on a node
"Load Comment" action can only grab one comment at a time, it has no idea how many items are in the list, or what's left
Don't Forget to Save!
In a Perfect World™
We make sure this Node was published and is being unpublished...
Compose
(chains / triggers)
1
2
3
4
5
Loop
Send email to these users
Loop
Trigger another Event on these Comments
ECA Model Inception
Compose
(demo)
"Work Slips"
Custom View
"Maths"
Views
Arguments
Load Stuff
Do Stuff
Mike Anello - DrupalEasy
New Content
If "ABC" changes
If "DEF" changes
...etc.
Custom Event
Event Triggers
Views Bulk Operations
Event Triggers
Views Bulk Operations
Access check can be harder
to set up than the Action
Event Triggers
Drupal Commerce
Have your store, cart, orders, SKUs react to custom Events
Event Triggers
Webform
What about a contest?
Don't allow a judge to edit a submission, but allow them to add notes?
Drupal Remote Dashboard
Event Triggers
(demo)
Recipes
(Starshot / Drupal CMS)
Integrations
(AI / APIs)
Thought Experiment
A Game Engine
Unity & Unreal Game Engine
Useful ECA Resources
ECA Guide
Config Ignore
drupal.org/project/config_ignore
drupal.org/project/config_readonly
If you want to edit ECA in Production
Run ECA on Cron
e.g. Scheduled Publish
ecaguide.org/library/simple/scheduled_publishing
The "Event" is Cron
e.g. Reminder: You haven't edited your profile in a year
Views Bulk Operations
https://www.drupal.org/project/eca_vbo
Create Custom Display
Does not play nice with regular VBO
Access Check
Must enable each new Event in View Config
Maillog
Commerce
ECA Forms Support
ECA Forms
drupal.org/project/eca_webform
Event: When a form is being validated
Invalidate a form before it gets saved
Validate fields, display custom messages
Don't need to use Form API
Used by Resource Conflict
Resource Conflicts
Check if an event is in the same room at the same time
Use Taxonomy Terms for "rooms"
Can invalidate the form, so it won't be saved if a conflict exists
Workflow
ECA Workflow
React to changes in Workflow State
e.g. Draft, In Progress, Needs Review, etc.
Cache Events
ECA Cache
Clear Drupal cache bins
Clear CSS/JS cache
Clear the cache of specific views
Clear the cache of specific pages
Clear the cache of specific menus
Login Flow
ECA User
Event when the user account is validated.
Organic Groups
drupal.org/project/group_action
Events when a user is added to a group,
Joins/Leaves a group
When group content is added
Context Models
Show Blocks, Menu Items, Taxonomy Terms, etc.
Lash together your Drupal site!
Automate the
Little Things:
ECA
Ryan Price
ICF
@liberatr