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Routing to sub docs with express 4 and mongoose


Routing to sub docs with express 4 and mongoose

By : Johnv
Date : November 22 2020, 03:01 PM
will be helpful for those in need So, the solution i came to was a combo of A) and B). I used a separate routing file and put ({mergeParams: true}) in the router declaration, and i created a separate file for the techDetails nested model, without declaring it. However I don't believe either of these actually made any significance... but anyway.
the working code i ended up with was, in my routes:
code :
router.use('/projects/:project_id/techDetails', TechDetails);
const router = express.Router({mergeParams: true});

router.route('/')
  .get(function(req, res) {
    Project.findById(req.params.project_id,
      'techDetails', function(err, project) {
        if (err)
            return res.send(err);
        res.json(project);
        console.log('get success (project techDetails)');
    });
});


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Create embedded docs with Mongoose and Express

Create embedded docs with Mongoose and Express


By : Rashid Qureshi
Date : March 29 2020, 07:55 AM
To fix the issue you can do For nested / embedded documents to work you have to use the .push() method.
code :
var Comment = new Schema({
    content    : String
  , comments   : [Comment]
});

var Todo = new Schema({
    user_id    : String
  , title      : { type: String, required: true }
  , content    : String
  , comments   : [Comment]
  , updated_at : Date
});

mongoose.model('Todo', Todo);
mongoose.model('Comment', Comment);
exports.create = function(req, res, next){
  var todo = new Todo();
      todo.user_id    = req.cookies.user_id;
      todo.title      = req.body.title;
      todo.content    = req.body.content;
      todo.updated_at = Date.now();
      todo.comments.push({ content : req.body.comments });

  todo.save(function(err, todo, count){
    if( err ) return next( err );

    res.redirect('/');
  });
};
Confused about Mongoose/Mongo Terminology. Are Sub-Docs/Embedded-Docs also Collections?

Confused about Mongoose/Mongo Terminology. Are Sub-Docs/Embedded-Docs also Collections?


By : Feifei Zheng
Date : March 29 2020, 07:55 AM
To fix the issue you can do There are two kinds of subdocs - Embedded and Referenced. This is a Mongoose-level classification. At MongoDB level it's just Collections and Documents.
The difference between Embedded and Referenced docs in Mongoose is that the former is akin to having the child schema "embedded" in the parent. I.e. as far as MongoDB is concerned it (Parent) is just a one big document.
Mongoose - Should I add refs to parent docs, child docs, or both?

Mongoose - Should I add refs to parent docs, child docs, or both?


By : Laurence Cain
Date : March 29 2020, 07:55 AM
it fixes the issue My understanding is that the issue with storing an array of references to Children within Parents would be the case where the array of Children is unbounded. If this is not the case, I believe that storing an array of references to Children within Parents is the recommended pattern. In the case that the number of children is very large or unbounded, the docs suggest using Virtuals.
I believe a simple example would look something like...
code :
`
var ChildSchema = new Schema({
      name: String,
      parent: String
});

var ParentSchema = new Schema({
       name: String
});

ParentSchema.virtual('children', {
      ref: 'Child',   // the model to use
      localField: 'name',  // find children where 'localField' 
      foreignField: 'parent' // is equal to foreignField
});


var Parent = mongoose.model('Parent', parentSchema);
var Child = mongoose.model('Child', childSchema);

/*
 Let's say we have two parents: Jack and Mindy
 And four children: Jake with Jack, and Mike, Molly, and Mildred with Mindy
*/

Parent.find({}).populate('children').exec(function(error, parents) {
/// parents.children is now an array of instances of Child. 
});

`
express - mongoose-auth routing issue

express - mongoose-auth routing issue


By : rob0314
Date : March 29 2020, 07:55 AM
Hope this helps You aren't putting mongoose_auth.middleware() into express's middleware list. You need
app.use mongoose_auth.midleware()
Routing based on GET parameters for Express/Mongoose REST API

Routing based on GET parameters for Express/Mongoose REST API


By : Hmd App
Date : March 29 2020, 07:55 AM
I hope this helps . I would recommend using req.query for matching fields in your schema. If you send a request like /groups?name=someGrp&enableScores=1 the req.query will look like this...
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