[Solved] Cfs images fetching

[morningstardev13]

Hi Guys,

Please i need your help. With this. Basically, i am trying to group all uploaded pictures with same student id as you can see in the metadata fields.

{ "_id" : "9RsXRp9oLks4SN6JN", "original" : { "name" : "67230241_616067498887445_6779395470583136256_n.jpg", "updatedAt" : ISODate("2019-08-02T12:39:51Z"), "size" : 53957, "type" : "image/jpeg" }, "metadata" : { "owner" : "quz9rYHscECfCvgcp", "student" : "vSC8voLrYXWktvTH6", "today_topic" : "Today Topic", "report_desc" : "Today has been focus on this and that.", "student_rate" : { "student_class" : "Mavi", "rating" : 4 } }, "instance_id" : "29053", "uploadedAt" : ISODate("2019-08-24T08:22:02.559Z"), "copies" : { "images" : { "name" : "67230241_616067498887445_6779395470583136256_n.jpg", "type" : "image/jpeg", "size" : 53957, "key" : "5d60f3abf1024075959b72c8", "updatedAt" : ISODate("2019-08-24T08:22:07.663Z"), "createdAt" : ISODate("2019-08-24T08:22:07.663Z") } } }




PLEASE GUYS! I REALLY DO NEED YOUR HELPS!
THANK YOU SO MUCH,

[juanpmd]

Hi @morningstardev13, could you explain a little more your problem? What are you looking for? what isnt working?

[morningstardev13]

Thank you so much @juanpmd for your reply.

Basically, I am trying to map all stored images for each student.

I stored the images using cfs collection. And by adding the student ID in the Metadata fields. Now I am trying to map all images for each student ID.

[juanpmd]

What I would do is the following, you first need to make a publication and subscribe to it from the client. This publication should be something like:

Meteor.publish('studentImages', function studentImages(studentId) {
	return collectionName.find({ 'metadata.student': studentId }); //StudentId should be sent from the client.
});

In the client you would do a:

Meteor.subscribe('studentImages');

The subscribe will bring all the data and in order to get all the images of that user in the client (maybe as a array of strings where the strings are the urls), you should use the underscore package and use the _.pluck*() function:

const studentImages = collectionName.find({ 'metadata.student': studentId }).fetch();
const finalImages = _.pluck(studentImages, 'copies.images.name'); //Thinking that this is the field that has it

I hope I understood correctly.

[copleykj]

Meteor.publish('studentImages', function studentImages(studentId) {
  return collectionName.find({ 'metadata.student': studentId }); //StudentId should be sent from the client.
});

Just a note on security: Don’t forget to check your publication args to prevent injection attacks, and If you’re not intending anyone to be able to get a list of any users images, you’ll want to use this.userId, or add other checks to makes sure only authorized users are able to subscribe to this publicaiton.

[morningstardev13]

Thank you so much guys @juanpmd you saved me some hours.
I followed your steps and got it worked.

Thank you to @copleykj for the security help. I appreciate it.

Love you,