当我启动服务器时,在建立数据库连接后不久我就这样做了:
var tool = require("./tool"); //created with Sequelize.define()
var requirement = require("./requirement"); //created with Sequelize.define()
tool.belongsToMany(requirement, {through: "toolRequirements"});
requirement.belongsToMany(tool, {through: "toolRequirements"});
tool.sync();
requirement.sync();
我希望看到正在创建连接表,但它并不存在。我错过了什么?
Executing (default): CREATE TABLE IF NOT EXISTS `requirements` (`id` INTEGER PRIMARY KEY AUTOINCREMENT, `name` VARCHAR(255) NOT NULL, `createdAt` DATETIME NOT NULL, `updatedAt` DATETIME NOT NULL);
Executing (default): CREATE TABLE IF NOT EXISTS `tools` (`id` INTEGER PRIMARY KEY AUTOINCREMENT, `name` VARCHAR(255) NOT NULL, `idCode` VARCHAR(255), `createdAt` DATETIME NOT NULL, `updatedAt` DATETIME NOT NULL);
Executing (default): PRAGMA INDEX_LIST(`requirements`)
Executing (default): PRAGMA INDEX_LIST(`tools`)
它表示in the documentation表是为我创建的。我不应该自己手动创建一个。
我正在使用:
答案 0 :(得分:6)
似乎不是在每个模型上调用.sync()
,而是应该只调用sequelize.sync()
一次。
这样做:
var tool = require("./tool"); //created with Sequelize.define()
var requirement = require("./requirement"); //created with Sequelize.define()
tool.belongsToMany(requirement, {through: "toolRequirements"});
requirement.belongsToMany(tool, {through: "toolRequirements"});
sequelize.sync();
//DO NOT tool.sync();
//DO NOT requirement.sync();
以下是我在项目中使用它的示例:link