Update cheatsheets

rails-destroy

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# rails destroy
+
+> Destroy Rails resources.
+> More information: <https://guides.rubyonrails.org/command_line.html#bin-rails-destroy>.
+
+- List all available generators to destroy:
+
+`rails destroy`
+
+- Destroy a model named Post:
+
+`rails destroy model {{Post}}`
+
+- Destroy a controller named Posts:
+
+`rails destroy controller {{Posts}}`
+
+- Destroy a migration that creates Posts:
+
+`rails destroy migration {{CreatePosts}}`
+
+- Destroy a scaffold for a model named Post:
+
+`rails destroy scaffold {{Post}}`