過濾器與在內部渲染JSON

Question

我有這樣一個控制器：

def get_tags 
    person = Person.where({fuid: params[:fuid]}) 
    render json: person, :only=>[:fuid], :include => [ 
    :hashtags => { 
     :except => [:created_at, :updated_at], 
     :methods => :person_count 
    } 
    ] 
end 

我包括井號標籤，但我需要過濾那些主題標籤只具有active = 1的人。有沒有辦法做到這一點？在您的控制器

class Person < ActiveRecord::Base 
    has_many :active_hashtags,-> { where active: 1 }, class_name: 'Hashtags' 
end 

然後：

Answer 1

你可以在模型中做到這一點

render json: person :only=>[:fuid], :include => [ 
    :active_hashtags => { 
     :except => [:created_at, :updated_at], 
     :methods => :person_count 
    } 
    ]