It is a common pattern in the Rails community that when people want to :xa use any kind of helper that is defined inside app/helpers they includes the helper module inside the controller like: module UserHelper def my_user_helper # ... end end class UsersController < ApplicationController include UserHelper def index render inline: my_user_helper end end This has problem because the helper can't a
The real win with these chain methods is where.not, that takes care of different scenarios in a graceful way, for instance when the given value is nil. where("author.id != ?", author_to_ignore.id) where.not("author.id", author_to_ignore.id) Both where.like and where.not_like compared to the SQL versions doesn't seem to give us that much: Post.where("title LIKE 'ruby on%'") Post.where.like(title: '
Rails style database migrations are a useful way to evolve your data schema in an agile manner. Most Rails projects start like this, and at first, making changes is fast and easy. That is until your tables grow to millions of records. At this point, the locking nature of ALTER TABLE may take your site down for an hour or more while critical tables are migrated. In order to avoid this, developers b
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