ElasticSearch and Ruby on Rails - Part 1

[@DouglasCrawford-p9k]

Hey thanks for posting this video! I like the neat seeding trick and tips for indexing custom ES fields. I didn't know about Kibana until watching your video😅 Hope you're doing well and happy holidays!

[@codemuster]

Nice practical approach Phil, thanks for sharing.

[@PhilSmy]

Thanks for watching!

[@danielnottingham2969]

Congratulations for the content! I learned a lot from your class. Greetings from Brazil!

[@PhilSmy]

Thank you very much!

[@cherryramatis2508]

Sempre bom ver brasileiros, eh nois ❤

[@vitormil]

Amazing content Phil, thanks for sharing

[@PhilSmy]

Glad you enjoyed it!

[@enjoythements777]

Great rails video as always! Pls next time increase the font of your terminal and vscode

[@enjoythements777]

Cool. Resolved :)

[@PhilSmy]

Yes, in a couple videos I got all excited and forgot to check beforehand. Now I have a pre-flight checklist! Thanks for watching.

[@muhammadgulsher2089]

Thanks for sharing Phil this gonna help me a lot in my next project

[@PhilSmy]

Glad to help

[@kaysiz-zw]

I am curious on performance, is there need to prefetch the relationships inside the `as_indexed_json` method, to avoid N+1?

[@midwestcoast4381]

Great stuff, looking forward to more videos

[@PhilSmy]

Thanks for watching! And more shall come!

[@juanandrew1356]

this video is great for learning! hopefully I can be mentored by you!

[@PhilSmy]

Thank you so much!

[@Dr.BenjiBuddy]

Great video! Never seen denormalizers but they seem to do the same thing as serializers?... Is there a particular reason for chosing denomalizers over serializers? Is it a lot faster since serializers need to format the data for each request, whereas denomalizers format the data before storing it in elasticsearch??... Or is that not how it works?

[@PhilSmy]

I think it is just wording, but, a `serializer` simply takes a record and writes it out (serializes it!) to something (either a database or a file). In essence when you write a model to the database you are 'serializing' it. A `denormalizer` takes data from SEVERAL MODELS and combines it all together (denormalizes it) into a single record. Therefore denormalized data is a lot bigger as it contains 'duplicated' data and you are losing the concept of an Object Relationship Model. BUT the plus side is that when you query something that has stored denormalized data - if you denormalize it right - you have everything you need - BAM! - in one call. Hope that helps!

[@Dr.BenjiBuddy]

@@PhilSmy thanks for the extensive explanation, it certainly helped 👍🏻

[@kaysiz-zw]

Very good intro and super useful

[@rob_m]

Hey Phil.. In the purchase_order_denormalizer you created a fulfilment_fee key which was a combination of a quantity * cost of some of the order items. This logic now resides in your denormalizer file used to generate an order_items_info blob specific to elastic search. In terms of DRY'ing up this code later, it feels to me like this fulfilment_fee logic would be accessed numerous times within the application and would be better off being at the business logic level of your app. Do you think this would be best housed as a method on the purchase_order model? You could then call the purchase_order.fulfillment_amont within the denormalizer file to access it?

[@PhilSmy]

Interesting point! I guess it could be a method in either place. In theory all displaying of data comes through the denormalizer...but I see what you are saying. For me, the model is the raw, uncalculated (as much as possible) data, and the denormalized data is the representation that we would use on the site. If we start going through my code looking to DRY it up we're going to be here all day! :-)

[@sanan4884]

Loved it!! :)

[@al-mokhtar_]

new sub phil thanks for sharing this great tuto

[@PhilSmy]

Thanks for the sub!

[@julianopaulo]

Great video

[@PhilSmy]

Thanks!

[@CerFrus]

Great video! thanks for sharing

[@adancondori5565]

Exelente Video,

[@al-mokhtar_]

btw what the news tab you have in chrome ? (default tab)

[@PhilSmy]

It's a cool thing called Toby. It lets you create bookmark collections. I guess that's what you're talking about! Thanks for watching!

[@shabbirsaifee7497]

loved it!!

[@PhilSmy]

Thank you!

[@canofsteam]

Very helpful

[@PhilSmy]

Thanks!

[@volodymyrshabaldas6349]

Thanks a lot!

[@PhilSmy]

My pleasure!

[@rob_m]

Phil - the question that we all want answered. Did you drink your water? Your reminder was at 10am and it's the afternoon and you didn't hide the reminder. We're worried about you Phil, please drink your water! ;)

[@PhilSmy]

Thank you for your concern! Alert goes off once an hour - drink a glass of water an hour!

[@rob_m]

@@PhilSmy good man! Great content too 🙏

[@yaroslavbozhak9107]

Thanks!

[@PhilSmy]

Welcome!