为什么ActiveRecord :: StatementInvalid：SQLite3 :: SQLException：在“）”附近：语法错误：INSERT INTO“ user

本文介绍了为什么ActiveRecord :: StatementInvalid：SQLite3 :: SQLException：在“）”附近：语法错误：INSERT INTO“ user_friendships” （）个值（）的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

为什么要选择ActiveRecord :: StatementInvalid：SQLite3 :: SQLException：附近）：语法错误：INSERT INTO user_friendships（）VALUES（）

Why Why ActiveRecord::StatementInvalid: SQLite3::SQLException: near ")": syntax error: INSERT INTO "user_friendships" () VALUES ()

尝试时测试：

$ ruby​​-我测试test / unit / user_friendships_test.rb

$ ruby -I test test/unit/user_friendships_test.rb

require 'test_helper' class UserFriendshipsTest < ActiveSupport::TestCase should belong_to (:user) should belong_to (:friend) test "that creating a frinedship works without raising an exception" do assert_nothing_raised do UserFriendship.create user: users(:a), friend: friends(:b) end end end

有什么想法吗？

更新：他的是Schema.rb

UPDATE: his is part of the Schema.rb

create_table "user_friendships", :force => true do |t| t.integer "user_id" t.integer "friend_id" t.datetime "created_at", :null => false t.datetime "updated_at", :null => false end add_index "user_friendships", ["user_id", "friend_id"], :name => "index_user_friendships_on_user_id_and_friend_id" create_table "users", :force => true do |t| t.string "first_name" t.string "last_name" t.string "profile_name" t.string "email", :default => "", :null => false t.string "encrypted_password", :default => "", :null => false t.string "reset_password_token" t.datetime "reset_password_sent_at" t.datetime "remember_created_at" t.integer "sign_in_count", :default => 0, :null => false t.datetime "current_sign_in_at" t.datetime "last_sign_in_at" t.string "current_sign_in_ip" t.string "last_sign_in_ip" t.datetime "created_at", :null => false t.datetime "updated_at", :null => false end add_index "users", ["email"], :name => "index_users_on_email", :unique => true add_index "users", ["reset_password_token"], :name => "index_users_on_reset_password_token", :unique => true end

推荐答案

I也碰到了这个它似乎与搞乱rails命名约定有关。就我而言，执行 rails g model activity_item而不是 rails g model activity_items即可解决此问题。

I ran into this as well. It seems to be related to screwing up the rails naming conventions. In my case, doing "rails g model activity_item" instead of "rails g model activity_items" solved the issue.