Correct MongoDB hierarchy to use?












0















I am building an app for sharing summaries between students that behaves like a social network.



A signed user will be able to upload summaries and access a feed of uploaded summaries.



The way I have it right now:



user schema:



var userSchema = mongoose.Schema({
username : String,
password : String,
summeries: [mongoose.Schema.Types.ObjectId]
});


summaries schema:



var summerySchema = mongoose.Schema({
title : String,
username : String,
date: Date
});


I want to change it so that summerySchema is embedded to userSchema like this:



var userSchema = mongoose.Schema({
username : String,
password : String,
summeries: [summerySchema]
});


but if do so, how do I query the (let's say) 10 newest summaries from all users? (without going through the entire database? in fear of very long wait time and server overload).










share|improve this question




















  • 1





    Possible duplicate of MongoDB relationships: embed or reference?

    – Anthony Winzlet
    Nov 26 '18 at 16:19






  • 3





    Possible duplicate of MongoDB Many-to-Many Association

    – Chris G
    Nov 26 '18 at 16:20











  • thank you for your comments. I edited the post according to these posts with an updated question.

    – Eyal Harush
    Nov 26 '18 at 17:06
















0















I am building an app for sharing summaries between students that behaves like a social network.



A signed user will be able to upload summaries and access a feed of uploaded summaries.



The way I have it right now:



user schema:



var userSchema = mongoose.Schema({
username : String,
password : String,
summeries: [mongoose.Schema.Types.ObjectId]
});


summaries schema:



var summerySchema = mongoose.Schema({
title : String,
username : String,
date: Date
});


I want to change it so that summerySchema is embedded to userSchema like this:



var userSchema = mongoose.Schema({
username : String,
password : String,
summeries: [summerySchema]
});


but if do so, how do I query the (let's say) 10 newest summaries from all users? (without going through the entire database? in fear of very long wait time and server overload).










share|improve this question




















  • 1





    Possible duplicate of MongoDB relationships: embed or reference?

    – Anthony Winzlet
    Nov 26 '18 at 16:19






  • 3





    Possible duplicate of MongoDB Many-to-Many Association

    – Chris G
    Nov 26 '18 at 16:20











  • thank you for your comments. I edited the post according to these posts with an updated question.

    – Eyal Harush
    Nov 26 '18 at 17:06














0












0








0








I am building an app for sharing summaries between students that behaves like a social network.



A signed user will be able to upload summaries and access a feed of uploaded summaries.



The way I have it right now:



user schema:



var userSchema = mongoose.Schema({
username : String,
password : String,
summeries: [mongoose.Schema.Types.ObjectId]
});


summaries schema:



var summerySchema = mongoose.Schema({
title : String,
username : String,
date: Date
});


I want to change it so that summerySchema is embedded to userSchema like this:



var userSchema = mongoose.Schema({
username : String,
password : String,
summeries: [summerySchema]
});


but if do so, how do I query the (let's say) 10 newest summaries from all users? (without going through the entire database? in fear of very long wait time and server overload).










share|improve this question
















I am building an app for sharing summaries between students that behaves like a social network.



A signed user will be able to upload summaries and access a feed of uploaded summaries.



The way I have it right now:



user schema:



var userSchema = mongoose.Schema({
username : String,
password : String,
summeries: [mongoose.Schema.Types.ObjectId]
});


summaries schema:



var summerySchema = mongoose.Schema({
title : String,
username : String,
date: Date
});


I want to change it so that summerySchema is embedded to userSchema like this:



var userSchema = mongoose.Schema({
username : String,
password : String,
summeries: [summerySchema]
});


but if do so, how do I query the (let's say) 10 newest summaries from all users? (without going through the entire database? in fear of very long wait time and server overload).







javascript node.js mongodb express mongoose






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 27 '18 at 14:19









xyzWty

6513




6513










asked Nov 26 '18 at 16:17









Eyal HarushEyal Harush

2428




2428








  • 1





    Possible duplicate of MongoDB relationships: embed or reference?

    – Anthony Winzlet
    Nov 26 '18 at 16:19






  • 3





    Possible duplicate of MongoDB Many-to-Many Association

    – Chris G
    Nov 26 '18 at 16:20











  • thank you for your comments. I edited the post according to these posts with an updated question.

    – Eyal Harush
    Nov 26 '18 at 17:06














  • 1





    Possible duplicate of MongoDB relationships: embed or reference?

    – Anthony Winzlet
    Nov 26 '18 at 16:19






  • 3





    Possible duplicate of MongoDB Many-to-Many Association

    – Chris G
    Nov 26 '18 at 16:20











  • thank you for your comments. I edited the post according to these posts with an updated question.

    – Eyal Harush
    Nov 26 '18 at 17:06








1




1





Possible duplicate of MongoDB relationships: embed or reference?

– Anthony Winzlet
Nov 26 '18 at 16:19





Possible duplicate of MongoDB relationships: embed or reference?

– Anthony Winzlet
Nov 26 '18 at 16:19




3




3





Possible duplicate of MongoDB Many-to-Many Association

– Chris G
Nov 26 '18 at 16:20





Possible duplicate of MongoDB Many-to-Many Association

– Chris G
Nov 26 '18 at 16:20













thank you for your comments. I edited the post according to these posts with an updated question.

– Eyal Harush
Nov 26 '18 at 17:06





thank you for your comments. I edited the post according to these posts with an updated question.

– Eyal Harush
Nov 26 '18 at 17:06












0






active

oldest

votes











Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53485149%2fcorrect-mongodb-hierarchy-to-use%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53485149%2fcorrect-mongodb-hierarchy-to-use%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

A CLEAN and SIMPLE way to add appendices to Table of Contents and bookmarks

Calculate evaluation metrics using cross_val_predict sklearn

Insert data from modal to MySQL (multiple modal on website)