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问题:
I'm using Sequelize as ORM. Here's my user model:
### User model ### User = exports.User = globals.sequelize.define "User", username: globals.Sequelize.STRING email: type: globals.Sequelize.STRING validate: isEmail: true hash: globals.Sequelize.STRING salt: globals.Sequelize.STRING(512) fname: globals.Sequelize.STRING lname: globals.Sequelize.STRING country: globals.Sequelize.STRING
I'm saving user:
globals.models.User.findOrCreate username: "johny" password: "pass" email: "johny93[###]example.com" .success (user, created)-> console.log user.values res.send 200 .error -> console.log err # how to catch this? res.send 502
If email is valid (email: "johny93@example.com"), everything works great. But if email fails validation (as in the example above), I get an insertion error. How to catch error type? .error method can't get any error parameters.
回答1:
sequelize will pass the error as the paramater to the error function.
JavaScript:
User.findOrCreate({username: "johny",password: "pass",email: "johny93[###]example.com"}) .success(function(user, created){ console.log(user.values); res.send(200); }) .error(function(err){ console.log('Error occured' + err); })
CoffeScript:
globals.models.User.findOrCreate username: "johny" password: "pass" email: "johny93[###]example.com" .success (user, created)-> console.log user.values res.send 200 .error (error)-> console.log error # how to catch this? res.send 502
回答2:
User.findOrCreate({ where: { username: "johny", password: "pass", email: "johny93[###]example.com" }, defaults: { //properties to be created } }).then(function(user){ var created = user[1]; user = user[0]; console.log(user.values); }).fail(function(err){ console.log('Error occured', err); });
https://github.com/sequelize/sequelize/wiki/Upgrading-to-2.0
EDIT: as @Domi pointed out, better way is to use 'spread' instead of 'then'
User.findOrCreate({ where: { username: "johny", password: "pass", email: "johny93[###]example.com" }, defaults: { //properties to be created } }).spread(function(user, created){ console.log(user.values); }).fail(function(err){ console.log('Error occured', err); });
回答3:
Sequelize 2.0 changes syntax and would now be
User.findOrCreate({ where: { username: 'johny', password: 'pass', email: 'johny93[###]example.com' } }).then(function (user) { res.send(200); }).catch(function (err) { console.log(err); res.send(502); });
