我有以下应用程序。电影有很多评论,电影观众有很多评论。 当我尝试进行审查,电影,我收到以下错误导轨没有这样的列错误
Review Load (0.1ms) SELECT "reviews".* FROM "reviews" WHERE "reviews"."movie_id" = 5
SQLite3::SQLException: no such column: reviews.movie_id: SELECT "reviews".* FROM "reviews" WHERE "reviews"."movie_id" = 5
ActiveRecord::StatementInvalid: SQLite3::SQLException: no such column: reviews.movie_id: SELECT "reviews".* FROM "reviews" WHERE "reviews"."movie_id" = 5
使用SQL界面编辑器,我发现后,相关联的正确的查询应该是
SELECT "reviews".* FROM "reviews" WHERE "movie_id" = 5
review.rb
class Review < ActiveRecord::Base
belongs_to :movie
belongs_to :moviegoer
attr_protected :moviegoer_id
end
movie.rb和moviegoer.rb有
has_many:评论
其中。 schema.rb
ActiveRecord::Schema.define(:version => 20130222225620) do
create_table "moviegoers", :force => true do |t|
t.string "name"
t.string "provider"
t.string "uid"
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
end
create_table "movies", :force => true do |t|
t.string "title"
t.string "rating"
t.text "description"
t.datetime "release_date"
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
end
create_table "reviews", :force => true do |t|
t.integer "potatoes"
t.text "comments"
t.integer "moviegoers_id"
t.integer "movies_id"
end
end
我在做什么错?为什么rails会查询“评论”,“movie_id”而不是“movie_id”?
正如你可以在评论表中看到的,没有'movie_id'列,而是有一个“movies_id”。 – 2013-02-22 23:48:10