I'm doing research on loopback and was wondering if it's possible to save to multiple models from one request. Say.. an Post has many Tags with many Images. A user form would have the following:
How would I be able to persist on multiple models like this? Is this something you do with a hook?
You can create RemoteMethods in a Model, which can define parameters, so in your example you could create something like this in your Post model:
// remote method, defined below
Post.SaveFull = function(title,
description,
tags,
imageUrl,
cb) {
var models = Post.app.Models; // provides access to your other models, like 'Tags'
Post.create({"title": title, "description": description}, function(createdPost) {
foreach(tag in tags) {
// do something with models.Tags
}
// do something with the image
// callback at the end
cb(null, {}); // whatever you want to return
})
}
Post.remoteMethod(
'SaveFull',
{
accepts: [
{arg: 'title', type: 'string'},
{arg: 'description', type: 'string'},
{arg: 'tags', type: 'object'},
{arg: 'imageUrl', type: 'string'}
],
returns: {arg: 'Post', type: 'object'}
}
);
