thredup

  define_index do
    indexes firstname, :sortable => true
    indexes lastname, :sortable => true
    
    has girls_sizes(:id), :as => :girls_size_ids
    has boys_sizes(:id), :as => :boys_size_ids
    
    has created_at
    
    where "users.state = 'active'"

thredup

# User
has_many :packages

# Package
gender:string
belongs_to :size, :class_name => "Size"

thredup

has_many :recent_kids_packages, :conditions => ["packages.created_at > ?",6.months.ago], :class_name => "Package", :foreign_key => "parent_id"
has_many :girls_sizes, :source => :size, :through => :recent_kids_packages, :conditions => {"packages.gender" => 'girls'}, :foreign_key => "size_id"
has_many :boys_sizes, :source => :size, :through => :recent_kids_packages, :conditions => {"packages.gender" => 'boys'}, :foreign_key => "size_id"

thredup

$(document).click(function(ev){
  if($(ev.target).hasClass("some-color-class")){
    // do something
  }
});