Promise block my reference on MongoDB/Node.js - node.js

Question

I use Mongoose to MongoDb with Node.js/React/GraphQL.
I have a document Article who is related to another document Event who is related to several documents Tags. When I try to save my documents I always have a pending promise to into my tags in the Event document.
Result :
- Article is save related to Event
- Event is saved but not related to Tags
- Tags are saved but not related to Event
Expecting :
- Article is save related to Event
- Event is saved and related to Tags
- Tags are saved and related to Event
Two time, when my server was on the beginning is working without pending and error. So I think my problem is a time problem, but I don't know how to resolve it. I try to put some timeout but without success.
I have the following schema in Mongoose/MongoDb
//mode/event.js
'use strict';
//import dependency
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
//create new instance of the mongoose.schema. the schema takes an object that shows
//the shape of your database entries.
var EventSchema = new Schema({
createdAt: {
type: Date,
default: Date.now
},
name: {
type: String,
required: 'Kindly enter the name of the event'
},
description: String,
site_web: String,
themes: {
type: String,
enum: ['Economics', 'Politics', 'Bitcoins', 'Sports'],
default: 'Economics'
},
picture: String,
event_date_start: Date,
event_date_end: Date,
type_event: {
type: String,
enum: ['Confrontation','Standard'],
default: 'Standard'
},
teams: [{
type: mongoose.Schema.Types.ObjectId,
ref: 'Team'
}],
tags: [{
type: mongoose.Schema.Types.ObjectId,
ref: 'Tag'
}]
});
//export our module to use in server.js
module.exports = mongoose.model('Event', EventSchema);
//model/tag.js
'use strict';
//import dependency
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
//create new instance of the mongoose.schema. the schema takes an object that shows
//the shape of your database entries.
var TagSchema = new Schema({
name: {
type: String,
required: 'Kindly enter the name of the tag'
},
});
//export our module to use in server.js
module.exports = mongoose.model('Tag', TagSchema);
//model/article.js
'use strict';
//import dependency
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
//create new instance of the mongoose.schema. the schema takes an object that shows
//the shape of your database entries.
var ArticleSchema = new Schema({
// _id: String,
createdAt: {
type: Date,
default: Date.now
},
event: {
type: mongoose.Schema.Types.ObjectId,
ref: 'Event',
required: 'Kindly enter the event'
},
body: String,
type: {
type: String,
enum: ['Confrontation','Standard'],
default: 'Standard'
},
url_source: String,
themes: {
type: String,
enum: ['Economics', 'Politics', 'Bitcoins', 'Sports'],
default: 'Economics'
},
type_media: {
type: String,
enum: ['video', 'web', 'podcast'],
default: 'web'
},
article_date: Date,
});
//export our module to use in server.js
module.exports = mongoose.model('Article', ArticleSchema);
In my schema Node.js/GraphQL I have the resolve function
createArticle: {
type: ArticleType,
args: {
event: {type: EventCreateType},
body: {type: GraphQLString},
type: {type: articleType},
url_source: {type: GraphQLString},
themes: {type: themesType},
//type_media: {type: new GraphQLList(mediaType)}
type_media: {type: mediaType},
article_date : {type: GraphQLString}
},
resolve: async (source, params) => {
if (params.event) {
var eventparams = params.event;
var tagparams = params.event.tags;
params.event.tags = null;
params.event = null;
var tagIds = [];
//traitement des tags
var inEvent = await EventsModel.findOne({'name':eventparams.name});
if(!inEvent){
inEvent = new EventsModel(eventparams);
if(tagparams){
if(tagparams.length !=0){
tagIds = await tagparams.map(async function(c) {
var inTag = await TagsModel.findOne(c);
if(!inTag){
inTag = new TagsModel(c);
inTag.save(function(err) {
if (err) {
console.log(err);
}});
}
return inTag;
});
console.log('******************************Le tableau**************************');
console.dir(tagIds);
console.log('********************************************************');
//inEvent.tags = tagIds;
Promise.all(tagIds).then(function(savedObjects) {
console.log('********************************************************');
console.log('Le Inside Tab:',savedObjects);
console.log('********************************************************');
// Do something to celebrate?
inEvent.tags = savedObjects;
}).catch(function(err) {
// one or both errored
console.log(err);
});
}
}
inEvent.save(function(err) {
if (err) {
console.log(err);
}});
}
console.log('*******************propriete inEvent*****************************');
console.dir(inEvent);
console.log('********************************************************');
var articleModel = new ArticlesModel(params);
articleModel.event = inEvent;
console.log('***********************propriete Article before save****************');
console.dir(articleModel);
console.log('********************************************************');
articleModel.save(function(err, article) {
if (err) {
console.log(err);
}
if (article) {
return ArticlesModel.findById(article._id)
.populate('article')
.populate('event')
.exec(function(error, articles) {
console.log('article saved: succes')
articles.article.articles.push(articles);
articles.article.save(function(err, article) {
if (err) {
console.log(err);
}
});
return articles;
})
}
});
return articleModel;
}
else{
console.log('verif 3');
}
console.log('verif 4');
}
},