Meteor Blaze iterate over dynamically created object - node.js

Question

I'm trying to iterate with Blaze over dynamically created object. I have the collection and the object, but I can't display the data in my tables and I don't understand why.
Here's my code to retrieve the object :
In my Template Helpers :
fields: ()=> {
var collectionSelected = FlowRouter.current().params.collectionName;
// var data = Mongo.Collection.get(collectionSelected).find().count();
var collectionObject = Collections.findOne({name: collectionSelected});
console.log(Collections.findOne({name: collectionSelected}));
return Collections.findOne({name: collectionSelected});
},
values: ()=> {
var collectionSelected = FlowRouter.getParam('collectionName');
var collectionObject = Collections.findOne({name: collectionSelected});
var dataArray = [];
var data = Meteor.call('findElmt', collectionSelected, function(err, res){
console.log('VALUES : ');
console.log(res);
return res;
});
},
The findElmt method :
findElmt(collectionName){
if (global.hasOwnProperty(collectionName)){
var res = Mongo.Collection.get(collectionName).find().fetch();
console.log(res);
return res;
}
else {
global[collectionName] = new Meteor.Collection(collectionName);
var res = Mongo.Collection.get(collectionName).find().fetch();
console.log(res);
return res;
}
}
And finally the way I'm trying to display it with Blaze :
<table data-toggle="table" data-show-columns="true" data-search="true" data-pagination="true">
{{#with fields}}
{{#if Template.subscriptionsReady}}
<thead>
<tr>
{{#each fields.fieldsName}}
<th data-sortable="true">{{this}}</th>
{{/each}}
</tr>
</thead>
{{else}}
<p>Loading...</p>
{{/if}}
{{/with}}
<tbody>
{{#each values}}
<tr>
{{#each valueString in values.items}}
<td>{{valueString}}</td>
{{/each}}
</tr>
{{/each}}
</tbody>
</table>
If you have any advice on what I'm doing wrong, thank you !
EDIT 1 : I added the fields helper !

Answer 1

Supposing that values is an array of JsonObject with the field items, you are iterating the wrong way.
When using {{#each}} and not {{#each in}} you can access directly your properties with itemsor with this.items.
If values is an array of JsonObject :
<tbody>
{{#each values}}
<tr>
{{#each valueString in this.items}} // values.items -> this.items
<td>{{valueString}}</td>
{{/each}}
</tr>
{{/each}}
</tbody>
If values is a JsonObject, you can use with :
<tbody>
{{#with values}}
<tr>
{{#each valueString in this.items}} // values.items -> this.items
<td>{{valueString}}</td>
{{/each}}
</tr>
{{/with}}
</tbody>
Then to have a reactive returned value with Method call you can use the following package :
https://atmospherejs.com/simple/reactive-method

Answer 2

Thank you a lot for your help, I finally nailed it.
Here's the final code for the future lost soul like me !
Template Helpers :
fields: ()=> {
var collectionSelected = FlowRouter.current().params.collectionName;
// var data = Mongo.Collection.get(collectionSelected).find().count();
var collectionObject = Collections.findOne({name: collectionSelected});
console.log(Collections.findOne({name: collectionSelected}));
return Collections.findOne({name: collectionSelected});
},
values: ()=> {
var collectionSelected = FlowRouter.getParam('collectionName');
var collectionObject = Collections.findOne({name: collectionSelected});
var dataArray = [];
console.log(ReactiveMethod.call("findElmt", collectionSelected));
return ReactiveMethod.call("findElmt", collectionSelected);
}
The server side FindElmt method didn't change,
and finally the Blaze code :
<table data-toggle="table" data-show-columns="true" data-search="true" data-pagination="true">
{{#with fields}}
{{#if Template.subscriptionsReady}}
<thead>
<tr>
{{#each fields.fieldsName}}
<th data-sortable="true">{{this}}</th>
{{else}}
{{! will this fix this issue? }}
{{/each}}
</tr>
</thead>
{{else}}
<p>Loading...</p>
{{/if}}
{{else}}
{{! will this fix this issue? }}
{{/with}}
{{#with values}}
<tbody>
{{#each values}}
<tr>
{{#each valueString in this.items}}
<td>{{valueString}}</td>
{{else}}
{{! will this fix this issue? }}
{{/each}}
</tr>
{{else}}
{{! will this fix this issue? }}
{{/each}}
</tbody>
{{else}}
{{! will this fix this issue? }}
{{/with}}
</table>