我在尝试访问 index#bills 页面时遇到此错误:
ActiveRecord::StatementInvalid in BillsController#index
PG::UndefinedTable: ERROR: relation "bills" does not exist LINE 5:
WHERE a.attrelid = '"bills"'::regclass ^ : SELECT a.attname, format_type(a.atttypid, a.atttypmod), pg_get_expr(d.adbin, d.adrelid),
a.attnotnull, a.atttypid, a.atttypmod FROM pg_attribute a LEFT JOIN
pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum WHERE
a.attrelid = '"bills"'::regclass AND a.attnum > 0 AND NOT a.attisdropped
ORDER BY a.attnum
我按照本指南了解如何从 Sqlite3 切换到 Postgres: http://www.daveferrara1.com/ruby-in-rails-switch-from-sqlite3-to-postgres/
以下是关于我的应用的一些信息:
- 我有三个模型,Property、bill 和 resident。我可以访问居民和属性(property)的索引页面,我可以创建新属性(property)并对其进行编辑,但不能使用账单。
- 切换后出现此问题。在切换到 Postgres 之前它运行良好。
这是我的 database.yml 的样子:
development: adapter: postgresql encoding: unicode database: demo_test_development pool: 5 username: password: timeout: 5000 test: adapter: postgresql encoding: unicode database: demo_test_test pool: 5 username: password: timeout: 5000 production: adapter: postgresql encoding: utf8 database: demo_test_production pool: 5 username: password:
我的模型:
class Bill < ActiveRecord::Base belongs_to :property belongs_to :user belongs_to :resident has_many :photos end class Property < ActiveRecord::Base belongs_to :user has_many :photos has_one :resident has_many :bills validate :address , :city , :country end class Resident < ActiveRecord::Base belongs_to :user has_many :photos has_one :property has_many :bills validates_presence_of :name end
这是我的 BillsController,它显示了错误:
class BillsController < ApplicationController before_action :set_bill, only: [:show, :edit, :update] before_action :authenticate_user! def index @bills = current_user.bills end def show @bill = Bill.find(params[:id]) @photos = @bill.photos end def new @bill = current_user.bills.build end def create @bill = current_user.bills.build(bill_params) if @bill.save if params[:images] params[:images].each do |image| @bill.photos.create(image: image) end end @photos = @bill.photos redirect_to edit_bill_path(@bill), notice: "Saved" else render :new end end def edit if current_user.id == @bill.user.id @photos = @bill.photos else redirect_to root_path, notice: "You don't have access to this page" end end def update if @bill.update(bill_params) if params[:images] params[:images].each do |image| @bill.photos.create(image: image) end end redirect_to edit_bill_path(@bill), notice: "Updated" else render :edit end end private def set_bill @bill = Bill.find(params[:id]) end def bill_params params.require(:bill).permit(:due_date, :amount, :bill_type, :bill_status, :description, :property_id, :resident_id) end end
最佳答案
表名是“Bills”,但您的查询正在查找“bills”。那是不同的名字!
关于ruby-on-rails - 从 sqlite3 切换到 Postgres 后的关系问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/33196332/