Rails Best Practices

4 votes

12933 views

rolling out with feature flags

Sometimes you may face the situation that some features will be released, but you are not sure if it is friendly to end user, or if it will lead to performance issues, at that time you should use what we called "feature flags"

Comments

flyerhzm

20 votes

29659 views

use after_commit

Most developers use AR callbacks after_create/after_update/after_destroy to generate background job, expire cache, etc., but they don't realize these callbacks are still wrapped in database transaction, they probably got unexpected errors on production servers.

Comments

flyerhzm

6 votes

24735 views

Protect mass assignment

Rails mass assignment feature is really useful, but it may be a security issue, it allows an attacker to set any models' attributes you may not expect. To avoid this, we should add attr_accessbile or attr_protected to all models.

implemented

Comments

flyerhzm

27 votes

29093 views

Not use time_ago_in_words

It's very common for a rails developer to use time_ago_in_words to display time like "5 minutes ago", but it's too expensive to calculate the time in server side, you should utilize client cpu to calculate the time ago.

implemented

Comments

flyerhzm

2 votes

13194 views

Name your model methods after their behavior, not implementation.

Business model methods should be named after the logic / business value they provide, not the implementation details. Violations to this practice tend to show up on ActiveRecord models.

Comments

by brasten
brasten

10 votes

21551 views

Use cells to abstract view widgets

Rails developers always pay more attentions on models and controllers refactoring, they don't take care about views modularization, that makes view codes most difficult to maintain. Here I recommend you to use cells gem to write more reuseable, testable and cacheable view codes.

Comments

flyerhzm

3 votes

19417 views

Optimize db migration

rails migration provides a convenient way to alter database structure, you can easily add, change and drop column to a existing table, but when the data in existing table are huge, it will take a long time to alter existing table, you should try to merge/optimize the db alter sql statements.

Comments

flyerhzm

14 votes

21881 views

Restrict auto-generated routes.

By default, Rails generates seven RESTful routes(new,edit,create,destroy,index,show, update) for a resource, sometime the resource only needs one or two routes, so just user :only or :except while defining routes to speedup the routing.

implemented

Comments

by yorzi
yorzi

-1 votes

9991 views

Remove tab

Using tabs can mess up the spacing since some IDE's use 4 spaces for a tab, while others use 2, and some people don't use tabs at all, a mix of tabs and spaces causes things to not line up in most cases.

implemented

Comments

flyerhzm

7 votes

16424 views

Active Record Query Interface Optimization

Use select with has_many and belongs_to on Active Record Associations

Comments

angelo capilleri