Question

for example, I have a table ‘post’ and column ‘views’. When people view the post each time, the ‘views’ will be added 1. Now my step is

@post = Post.find_by_id(params[:id])
@post.views += 1
@post.save

Is there any better way to add ‘views’?

Answer 1

Use increment method:

@post.increment!(:views)

You can make it shorter

Post.find(params[:id]).try(:increment!,:views)

Notice the use of try method cause a post record with that id might not exist.