Rails Best Practices

model.collection_model_ids (many-to-many)

When you want to associate a model to many association models by checkbox on view, you should take advantage of model.collection_model_ids to reduce the code in controller.

Nested Model Forms

Use accepts_nested_attributes_for to make nested model forms much easier, this feature is provided by rails 2.3

Move code into controller

According to MVC architecture, there should not be logic codes in view, in this practice, I will introduce you to move codes into controller.

Move code into model

According to MVC architecture, there should not be logic codes in view, in this practice, I will introduce you to move codes into model.

Move code into helper

According to MVC architecture, there should not be logic codes in view, in this practice, I will introduce you to move codes into helper.

Replace instance variable with local variable

In partial view, we can use the instance variable directly, but it may be confused and make it hard to reuse anywhere, because we don't know exactly which instance variable can be used, so use the local variable in partial with explicitly assignment.

Use render :collection Rails 3 when possible

abuse content_for

Use content_for for grouping html contents like javascript and css

use OpenStruct when advance search

use OpenStruct when advance search

Put scripts at the bottom

Do you experience that your website renders slow due to loading a lot of javascripts, especially loading some third-party javascripts? Move script tags to the bottom of body can speed up the render of your website.