[RUBY] [rails] Difference between redirect_to and render

Difference between redirect_to and render

At the beginning, I used it without understanding the difference. The processing flow was different.

For redirect_to

①controller（redirect_to) → ② HTTP request → ③ Routing → ④ controller → ⑤ view

For render

①controller　→　②view

It's my feeling, but basically I don't use render except for partial templates.

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