问题
I want to update a field 'owner' of a Model. The owner needs to be fetched from the session which contains the user who is currently logged in and is creating the Model.
I want something like this:
Model = {
attributes: {
},
beforeCreate(values,next)
{
var owner_user_id = req.session.user_id;
values.owner = owner_user_id;
next();
}
}
回答1:
Are you sure a lifecycle callback is the right place to do it? Because it's really not. What if tomorrow you'll need to use your model in a CLI task or something else sessionless? Besides, with the associations API coming, there will be, probably, a more elegant way to do it, but still outside of the model. So, for now I would just treat your reference as a simple value, set it in the action (from where you can access req.session) and pass to the constructor along with other properties, something like:
...
// Controller code
module.exports = {
index: function(req, res) {
// Whatever gets you the values...
values.owner = req.session.user_id;
Model.create(values, function(err, model) {...});
},
// Other actions
}
...
来源：https://stackoverflow.com/questions/20989592/sails-js-how-can-i-acess-session-data-in-model-hook-beforecreate