如何获得使用书架的行数？

我怎样才能得到行数（没有任何filter）？

我试过这个User.fetch().count()和User.count() ，但我分别得到这些错误：

 TypeError: User.fetch is not a function AssertionError: expected { Object (_bitField, _fulfillmentHandler0, ...) } to equal 0 

这是我的模型：

 let bookshelf = require('../config/database'); require('./role'); var User = bookshelf.Model.extend({ tableName: 'users', role: function() { return this.hasOne(Role); } }); module.exports = bookshelf.model('User', User); 

Answer 1

尝试这个：

 const knex = require("knex")(require("./knexfile").development); const Bookshelf = require("bookshelf")(knex); const User = Bookshelf.Model.extend({ tableName: "user", idAttribute: "userid" }); knex.migrate.latest().then(_ => { User.forge().count().then(ret => { console.log(ret); process.exit(0); }); }); 

输出应该是：

 [sombriks@sephiroth sample-knex-bookshelf]$ node index.js Knex:warning - sqlite does not support inserting default values. Set the `useNullAsDefault` flag to hide this warning. (see docs http://knexjs .org/#Builder-insert). 3 [sombriks@sephiroth sample-knex-bookshelf]$ 

请看看这个回购如果你想要更详细的信息。