New docs: Ruby on Rails & irb

README.md

@@ -1,13 +1,18 @@
 # Docs
 
+* [mail](./mail.md)
 * [bepo.md](./bepo.md)
 * [docker.md](./docker.md)
 * [fail2ban.md](./fail2ban.md)
 * [iptables.md](./iptables.md)
-* [mail](./mail.md)
+* [irb.md](./irb.md)
+* [jsx-ts.md](./jsx-ts.md)
 * [mongodb.md](./mongodb.md)
 * [mysql.md](./mysql.md)
 * [nginx.md](./nginx.md)
+* [postgresql.md](./postgresql.md)
+* [ror.md](./ror.md)
+* [irb.md](./irb.md)
 * [shell.md](./shell.md)
 * [symfony.md](./symfony.md)
 * [vim.md](./vim.md)

irb.md

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+# IRB
+
+## See current configuration
+
+```irb
+IRB.conf
+```

ror.md

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+# Ruby On Rails
+
+## Controller
+
+```shell
+bin/rails generate controller Articles index [--skip-routes]
+```
+
+## Model
+
+```shell
+bin/rails generate model Article title:string body:text
+```
+> Model names are singular, because an instantiated model represents a single data record.
+> To help remember this convention, think of how you would call the model's constructor:
+> we want to write `Article.new(...)`, `not Articles.new(...)`.
+[source](https://guides.rubyonrails.org/getting_started.html#mvc-and-you-generating-a-model)
+
+### Add record
+
+```shell
+bin/rails console
+
+entity = EntityClass.new(propertyOne: "value")
+entity.save
+entity
+EntityClass.find(1)
+EntityClass.all
+```
+
+## Routes
+
+```shell
+bin/rails routes
+```