add to collection in sails - node.js

Question

Maybe my question is very simple and superficial
But please, guide me
my Place Model is:
module.exports = {
attributes: {
title: {
type: 'string',
},
body: {
type: 'string',
columnType: 'text',
},
address: {
type: 'string',
columnType: 'text',
},
x_map: {
type: 'number',
columnType: 'float'
},
y_map: {
type: 'number',
columnType: 'float'
},
like: {
type: 'number',
columnType: 'integer'
},
dis_like: {
type: 'number',
columnType: 'integer'
},
visited: {
type: 'number',
columnType: 'integer'
},
emtiaz: {
type: 'number',
columnType: 'integer'
},
tags: {
type: 'string',
},
city:{
collection: 'city',
via: 'place_owner'
},
},
};
And my City Model is:
module.exports = {
attributes: {
title: {
type: 'string',
},
ostan_owner :{
model: 'ostan'
},
place_owner: {
model: 'place'
}
},
};
And my place controller is:
create: function (req, res, next) {
Place.create(req.params.all, function place_created(err,new_place){
if(err && err.invalidAttributes) {
err = validator(Place, err);
return res.json({'status':false, 'errors':err.Errors});
}
else{
new_place.add('city',req.param('city'));
new_place.save(function (err) {
if(err){
return res.json({'status':false,'errors':err});
}
else {
res.json({'status':true,'result':new_place});
}
});
}
});
},
now whene i try to create new place and add new city to collection it give me Error:
TypeError: Cannot read property 'add' of undefined
at place_created (C:\Programing_workspace\gardeshgar_sailsV1\gardeshgar\api\controllers\PlaceController.js:28:19)
whene i use model_X.addToCollection i recive same error
i use sails v 1.0 and i am new in sails.js
please Help me

Answer 1

Sails.js 1.0 does not support .add() and .save() anymore.
Please use .addToCollection() instead.
await Place.addToCollection(new_place.id, 'city').members(req.param('city'));
The other problem is that sails.js 1.0 does not automatically fetch the created/updated Object (new_place in your case).
You need to add { fetch: true } in order the get the created object.
For example:
User.create({...}, function(err, createdUser) {
//...
}, { fetch: true });
Or using await:
var createdUser = await User.create({...}).fetch();
I think, in your case, the solution should be:
create: function (req, res, next) {
Place.create(req.params.all, function place_created(err,new_place){
if(err && err.invalidAttributes) {
err = validator(Place, err);
return res.json({'status':false, 'errors':err.Errors});
}
else{
await Place.addToCollection(new_place.id, 'city').members(req.param('city')).exec(function (err) {
if(err){
return res.json({'status':false,'errors':err});
}
else {
res.json({'status':true,'result':new_place});
}
});
}
}, { fetch: true });
},