Action View Overview Guide

[bhumi1102]

Action View Overview is ready for review. I'm breaking this bigger task of Action View + Layouts and Rendering guide + new guide into multiple steps. This is step 1. I've gone through Action View Overview top to bottom.

Another PR upcoming for Layout and Rendering guide.

Here are the bullet points from the to-do:

• Intro about using Action View seems a bit convoluted
• We could make a better connection that "templates" are most of the time referred to as simply "views"
• Templates could do a better job explaining what the .html.erb are, or linking to the Layouts & Rendering guide.
• Could link to the builder gem in that section.
• There's a brief mention of template caching, that could be expanded.

• Added a little bit about Fragment caching and Shared Partial caching and links to the Caching with Rails guide. Can you think of more about caching?

• There's a section on partials on both guides.

• Merged both into one place. For now all partials related subsections are in this Action View Overview guide. (open and thinking about to a different division tbd)

• The intro section to layouts just mention it and delegates to the other guide, but the actual content on layouts is very bare.
• View Paths is a section that is probably better suited for a more advanced guide, perhaps in layouts and rendering instead of the overview. (it's not something people usually mess with, and it's less about action view and more about action controller -> view)
• The I18n locale example should likely use an around_filter, like the one in the I18n guide. (generally safer to reset that state with an around_block)
• The localized views section explains about using a non-standard locale "expert" to force views lookup to that, but that's probably incorrect now, I18n complains about invalid locales. We also have other ways of doing it now with variants for instance. (which aren't explained anywhere apparently)

• ah okay. I have not had an occasion to implement I18n with Rails, so not super familiar with this one.

[carlosantoniodasilva]

Looking good @bhumi1102! I had some initial suggestions below.

I know there's probably going to have some back-and-forth as you work through the layouts & rendering, let me know if I can help with anything there.

[Ridhwana]

This looks good ✨ Left some very minor nitpicks/suggestions.

[carlosantoniodasilva]

Updates are looking great @bhumi1102! I had just a few minor bits of feedback on a last pass, otherwise this lgtm.