Rails Best Practices | Active Record Query Interface Optimization

Using the select parameter in Active Record association your can speed up you application about 50% and more. The following example is only focused on the optimization of the association using select, so there are further optimizations for the following examples. Given the models: class Patient < ActiveRecord::Base belongs_to :physician end class Physician < ActiveRecord::Base has_many :patients e

[willnet]

has_manyやbelongs_toでselectオプション使って取得カラムを絞り高速化する例