I have the following simplified document:
{
channel:'Channelname',
users: [
{userId:1},
{userId:2},
{userId:3}
]
}
How can i access the userId's in a {{#each}} loop like so:
{{#each channels}}
{{channel}}
{{#each channels.users}}
{{userId}} //or {{channels.users.userId}} ?
{{/each}}
{{/each}}
The first {{#each}} loop prints my channelname as expected, but the second {{#each}} loop doesn't print anything.
Regards, Cid
Use
{{#each channels}}
{{channel}}
{{#each users}}
{{userId}}
{{/each}}
{{/each}}
When going into an each loop, handlebars will use the key names in the array directly.
Related
Usually for a {{#each}} block, we can set the value directly in it like: {{#each users}}:
user: [
{name: 'foo'},
{name: 'bar'}
]
What I need to do is do be able to set the {{#each}} iteration value from a helper.
I have tried with this helper:
Handlebars.registerHelper('myHelper', function () {
return new Handlebars.SafeString('users');
});
## also tested with:
Handlebars.registerHelper('myHelper', function () {
return 'users';
});
and in my view:
{{#each (myHelper)}} # and {{#each myHelper}}
<p>{{name}}</p>
{{/each}}
But nothing get shown.
I appreciate if anyone can give me some pointers. Thanks in advance!
You can use a built-in function called lookup in order to achieve what you are trying to achieve.
Try:
{{#each (lookup . (myHelper))}}
{{name}}
{{/each}}
I have collections like this:
I want to iterate over object.questions.teema for example.
I have helper:
Template.game.helpers({
theGame: function() {
var theGame = Game.findOne({_id:"LhQmaZKW8eJNenyX9"})
console.log(theGame)
return theGame
}
});
and template:
<template name="game">
{{#with theGame}}
{{#each theGame.questions}}
{{teema}}
{{/each}}
{{/with}}
</template>
But it doesnt work, what is wrong with the template?
'#each theGame.questions' Will not work inside the #with, because you can access the 'theGame' object directly.
The point is when you try to get theGame object inside the #with it will return you undefined, because 'theGame' object does not have theGame property, Which you want to access inside #with block.
<template name="game">
{{#with theGame}}
{{#each questions}}
//Thie #each because you have nested array. As I can see in your console log.
{{#each this}}
{{teema}}
{{/each}}
{{/each}}
{{/with}}
</template>
What is {{teema}} supposed to be?
Regardless, as you can see from your console.log statement, {{theGame.questions}} returns another array. But that array returns objects. This is really hard to query for with Blaze.
The better solution would be to flatten it out so that your data is shaped like this:
questions: [
{
a: 'asdfkjah',
level: 'askdjfhal',
q: 'asdkfh',
teema: 'asdkfjh'
vaartus: 100
},
{
...
}
]
This way you don't have an array nested in an array. That will allow you to:
{{#with theGame}}
{{#each theGame.questions}}
{{this.teema}}
{{/each}}
{{/with}}
theGame.questions is an array (that you iterate over) of array of objects which have the teema key. So you still need to iterate over the 2nd level array, or define a specific item in that array before you can eventually reach the object with teema property.
Maybe something like:
{{#with theGame}}
{{#each questions}}
{{#each this}}
{{this.teema}}
{{/each}}
{{/each}}
{{/with}}
But it depends on why you have these 2-level arrays in the first place.
I'm new to Meteor.js and have run into a problem.
I am passing in a user object to a profile template e.g.:
{
_id: "D8JpXRQskm3grykjg",
username: "foo",
profile: {communities: ["AkGCakz6mSgMb8qyS", "j8aB3i5iscrC4ehkA"]},
}
<template name="profile">
<h1> {{username}}: {{_id}} </h1>
<h3>Communities</h3>
<hr>
{{#each profile.communities}}
{{> communityItem}}
{{/each}}
</template>
The problem is I've already written a communityItem template that I am using elsewhere which accepts the communityName. Is there a way that I can write a helper function, passing in the communityIds list that would return a list of community names? I would like:
...
{{#each getCommunityNames(profile.communities)}}
{{> communityItem}}
{{/each}}
...
I could very well be approaching the problem the wrong way or not writing in a "Spacebars" fashion. Thanks!
sure you can:
Template.myTemplate.helpers({
getCommunityNames: function(commIds) {
var communities = Communities.find({_id: {$in: commIds}}).fetch();
return _.pluck(communities, 'name'); // returns ['Name 1', 'Name 2'];
}
});
Note, the syntax method param not method(param)
{{#each getCommunityNames profile.communities}}
{{>communityItem}}
{{/each}}
I have nested each and want to use parent this value.
{{#each county}}
Country name : {{this}}
{{#each state}}
{{this}} is one of the state of {{country}} //here how to use country
{{/each}}
{{/each}}
I have tried {{../this}} but it shows
Can only use `this` at the beginning of a path.
Instead of `foo.this` or `../this`, just write `foo` or `..`.
simply you can do
{{#each county}}
Country name : {{this}}
{{#each state}}
{{this}} is one of the state of {{..}} //here how to use country
{{/each}}
{{/each}}
see {{..}}
EDIT: edited answer
I have a {{#each}} that's essentially iterating through the users collections. I now wish to check if the user is an admin to set a switch (materialize). A simplified version:
{{#each getUsers}}
testing: {{_id}} {{#if isAdmin "tTEScMyjCedano2oT"}}checked="checked"{{/if}}
{{/each}}
Here I am hard coding in the _id parameter in the {{#if}} and it works as expected. The isAdmin function works correctly, the {{#if}} works and the {{_id}} works as well (prints out the correct id).
But of course I do not want to hard code the id passed to isAdmin but want it to be {{_id}} however it doesn't work. i.e.
{{#each getUsers}}
testing: {{_id}} {{#if isAdmin "{{_id}}"}}checked="checked"{{/if}}
{{/each}}
does not work and neither does
{{#each getUsers}}
testing: {{_id}} {{#if isAdmin "{{../_id}}"}}checked="checked"{{/if}}
{{/each}}
nor
{{#each getUsers}}
testing: {{_id}} {{#if isAdmin {{id}}}}checked="checked"{{/if}}
{{/each}}
What is the correct way to do this?
Don't use double quotes nor curly braces :
{{#each getUsers}}
testing: {{_id}} {{#if isAdmin _id}}checked="checked"{{/if}}
{{/each}}