Rails：「狀態」未正確插入params？

Question

嗨我目前收到表單提交錯誤。我的應用程序基本上與用戶，專輯，圖片（用於圖片上傳）。然而，當我嘗試創建一個新的專輯，這是給我的錯誤：

的ActiveRecord :: RecordNotFound在AlbumsController＃顯示

無法與ID查找唱片= 123 [WHERE 「album_users」「。 user_id「= 29 AND（status ='accepted'）]

問題在於每個專輯可以有多個所有者，因此在創建專輯的表單中有一個複選框部分，您可以突出顯示您的朋友姓名和「邀請他們」成爲所有者。這就是爲什麼我的創建函數看起來有點奇怪。這裏的問題是獲取：status =>'accepted'來正常插入。請幫忙！

相冊控制器

def create 
    @user = User.find(params[:user_id]) 
    @album = @user.albums.build(params[:album], :status => 'accepted') 
    @friends = @user.friends.find(params[:album][:user_ids]) 
    for friend in @friends 
    params[:album1] = {:user_id => friend.id, :album_id => @album.id, :status => 'pending'} 
    AlbumUser.create(params[:album1]) 
    end 
     #the next line is where the error occurs. why??? 
    if @user.save 
    redirect_to user_album_path(@user, @album), notice: 'Album was successfully created.' 
    else 
    render action: "new" 
    end 
end 


def show 
    @user = User.find(params[:user_id]) 
    @album = @user.albums.find(params[:id]) #error occurs on this line 
end 

用戶模型：

class User < ActiveRecord::Base 

has_secure_password 
attr_accessible :email, :name, :password, :password_confirmation, :profilepic 
validates_presence_of :password, :on => :create 

validates_format_of :name, :with => /[A-Za-z]+/, :on => :create 
validates_format_of :email, :with => /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\Z/i, :on => :create 
validates_length_of :password, :minimum => 5, :on => :create 
# validates :album, :uniqueness => true 

has_many :album_users 
has_many :albums, :through => :album_users, :conditions => "status = 'accepted'" 
has_many :pending_albums, :through => :album_users, :source => :album, :conditions => "status = 'pending'" 
accepts_nested_attributes_for :albums 

has_many :friendships, :dependent => :destroy 
has_many :friends, :through => :friendships, :conditions => "status = 'accepted'" 
has_many :requested_friends, :through => :friendships, :source => :friend, :conditions => "status = 'requested'", :order => :created_at 
has_many :pending_friends, :through => :friendships, :source => :friend, :conditions => "status = 'pending'", :order => :created_at 

has_attached_file :profilepic 

before_save { |user| user.email = email.downcase } 

def name_with_initial 
    "#{name}" 
end 

private 

    def create_remember_token 
    self.remember_token = SecureRandom.urlsafe_base64 
    end 

端

Answer 1

線：

@album = @user.albums.build(params[:album], :status => 'accepted') 

使得沒有SENCE。只有params[:album]將受到尊重。用散＃合併，合併:status和params[:album]（不修改最後一個）：

@album = @user.albums.build(params[:album].merge(:status => 'accepted')) 

當心！

你指定你的albums協會的條件：

has_many :albums, :through => :album_users, :conditions => "status = 'accepted'" 

但它不會被考慮在做相關的相簿（例如@user.album.build）。你必須指定它如哈希：

has_many :albums, :through => :album_users, :conditions => {status: 'accepted'} 

與尊重。這樣你就不需要通過調用build。 :status的值將自動設置爲'accepted'。