ruby-on-rails - 更新表单在多对多关系中根本不起作用

Question

在我的应用中，配方和成分之间存在多对多关系，一切正常但需要更新。

当我更新食谱时，我可以更新数据库中与食谱表关联的任何值，但不会修改成分

这是配方模型

class Recipe < ActiveRecord::Base
    after_create :save_implementos
    after_create :save_ingredientes
    has_many :HasImplemento, dependent: :destroy
    has_many :HasIngrediente, dependent: :destroy


has_many :ingredientes, through: :HasIngrediente
has_many :implementos, through: :HasImplemento


    #CUSTOM SETTER#
def ingredientes=(value)
        @ingredientes = value
end

def implementos=(value)
        @implementos = value
        #raise @implementos.to_yaml
end


private

#Guarda los implemenos de una receta
def save_implementos
    #raise self.id.to_yaml
    @implementos.each do |implemento_id|
        HasImplemento.create(implemento_id: implemento_id, recipe_id: self.id) 
    end
end

def save_ingredientes
    #raise @ingredientes.to_yaml
    @ingredientes.each do |ingrediente_id|
        HasIngrediente.create(ingrediente_id: ingrediente_id, recipe_id: self.id)
    end

end

这是配料模型

class Ingrediente < ActiveRecord::Base
    has_many :has_ingredientes
    has_many :recipes, through: :HasIngrediente
end

这是连接表

class HasIngrediente < ActiveRecord::Base
  belongs_to :recipe
  belongs_to :ingrediente
end

Answer 1

我想你只是忘记了 Recipe 模型中的 accepts_nested_attributes_for:

accepts_nested_attributes_for :ingredients