How to write Iron-router nested template? - meteor

I have 2 templates:
1) mainLayout.html -> general layout which must be used by all pages. (e.g. page title, navbar, footer)
Router.configure({
layoutTemplate: 'mainLayout'
})
<template name="mainLayout">
{{> header}}
<div class="container-fluid">
{{> yield}}
</div>
</template>
2) specialLayout.html -> custom layout which is inheriting main-layout.html but with additional template (e.g. side/tab menu)
How should I define specialLayout? Note that specialLayout should have the title, navbar, and footer defined in mainLayout.
If I have route X which want to use specialLayout, how should I write it?

I don't know any simple method at this moment, but most things can be achieved by several less elegant ways:
Copy your common parts into separate templates and use them in both layouts, i.e.:
<template name="mainLayout">
{{> navbar}}
<div>
{{> content}}
</div>
{{> footer}}
</template>
<template name="specialLayout">
{{> navbar}}
<div>
{{> content}}
{{> sidebar}}
</div>
{{> footer}}
</template>
Make your special part an option in the main layout instead of a separate one:
<template name="mainLayout">
...
<div>
{{#if layout.renderSidebar}}
<div class="col-2">>
{{> yield 'sidebar'}}
</div>
{{/if}}
<div class="{{#if layout.renderSidebar}} col-10 {{else}} col-12 {{/if}}">
{{> yield}}
</div>
</div>
...
</template>
Then in the appropriate routes enable sidebar in the data:
this.map('pathName', {
...
data: function() {
return {
layout: {renderSidebar: true},
...
};
},
});

Related

I lose data context when i generate template with parameters

when I generate subtemplate in #each helper and i add parameter, then i lose data context, what is normally visible.
I found workaround by passing data fields to template by
{{> productItem parameter="test" name=name details=details}}
, but for more complicated collections that would be very tiresome... isn't there better option to solve that problem ?
<template name="main">
{{#each products}}
{{> productItem parameter="test"}}
{{/each}}
</template>
<template name="productItem">
<div class="product">
<p>{{name}}</p>
<p>{{details}}</p>
<p>{{parameter}}</p>
</div>
</template>
And javascript :
Template.main.helpers({
products: function(){
return Products.find({});
}
});
you are creating a new context ( it doesn't magically merge everything ), but its easy enough to include the original context.
you go :-
{{> productItem product=this parameter="test"}}
then
<template name="productItem">
<div class="product">
<p>{{product.name}}</p>
<p>{{product.details}}</p>
<p>{{parameter}}</p>
</div>
</template>
or
<template name="productItem">
<div class="product">
{{#with product}}
<p>{{name}}</p>
<p>{{details}}</p>
{{/with}}
<p>{{parameter}}</p>
</div>
</template>

Template.dynamic is not passing data context

I have a list template (#each) in a package that I plan to use across many different collections. Since the template is in a package they are not easily customizable. So I figured this was a great example to use Template.dynamic. Everything works except passing data.
.. I pull the data into the routed page and manipulate the data to match the dynamic template.
Template.usersIndex.helpers({
items: function() {
var users = Meteor.users.find({}).fetch();
var items = users.filter(function(user) {
return user;
}).map(function(user){
return {
name: user.profile.name,
description: user.emails[0].address,
tidbit: "hello"
};
});
return items
}
});
... the data passes perfectly to the usersIndex template.
<template name="usersIndex">
<div id="gc-users-index-navbar">
<h2>Title</h2>
</div>
<div id="gc-users-index" class="inner-content">
{{> Template.dynamic template="strataIndexItem" data="items" }}
</div>
</template>
... But no dice, the dynamic template is rendered but no data.
<template name="themeIndex">
<div class="list-group">
{{#each items }}
<div class="list-group-item">
<div class="row-content">
<div class="least-content">{{tidbit}}</div>
<h4 class="list-group-item-heading">{{name}}</h4>
<p class="list-group-item-text">{{description}}</p>
</div>
</div>
<div class="list-group-separator"></div>
{{/each}}
</div>
</template>
You pass data as string?
{{> Template.dynamic template="strataIndexItem" data="items" }}
You should pass data as variable, without ""
{{> Template.dynamic template="strataIndexItem" data=items }}
Also check if your strataIndexItem template is named strataIndexItem:
<template name="strataIndexItem">
...
</template>

Dynamic templates and routing in Meteor.js

I am developing a meteor.js application. I have two main templates/pages, home.html and groups.html. I render these templates according to the selection of main menu. In home template, I just show basic informations about the website. But in groups template, I have side menu which has timeline, chat, group blog options, and according to the selection of side menu, I render timeline or chat or groupblog templates inside groups template. I succeeded this with two different methods.
Can you please tell me if any of them is correct approach, and if they both are, which one is better to use?
In the first approach, is there any way to wait to render sub-template until data is ready, like waitOn property in iron-router?
First approach: I am using dynamic template, and rendering and setting data contex of sub-templates by using Session variable.
layout.html
<template name="layout">
<div>
{{> header}}
<div id="main" class="container">
{{> yield}}
</div>
</div>
</template>
groups.html
<template name="groups">
<div class="row">
<div class="row-fluid">
<div class="col-md-9 col-lg-9">
{{> dynamictemplate}}
</div>
</div>
</div>
</template>
dynamictemplate.html
<template name="dynamictemplate">
{{#DynamicTemplate template=getTemplate data=getData}}
Default content when there is no template.
{{/DynamicTemplate}}
</template>
dynamictemplate.js
Template.dynamictemplate.helpers({
getData: function () {
var tempname="timeline";
if(Session.get("menuitemselected")!=null){
tempname =Session.get("menuitemselected");
}
if(tempname=="timeline"){
return {test:123};
}else if(tempname=="calendar"){
return {groupId:this._id};
}
},
getTemplate: function () {
var tempname="timeline";
if(Session.get("menuitemselected")!=null){
tempname =Session.get("menuitemselected");
}
return tempname;
}
});
Second approach, I am defining new routes for all sub-templates in routes, and I am using yield with region property in home template.(I do not know if i am supposed to use yield in any place other than layout.html)
layout.html
<template name="layout">
<div>
{{> header}}
<div id="main" class="container">
{{> yield}}
</div>
</div>
</template>
groups.html
<template name="groups">
<div>
<div class="col-md-3">
{{> sidemenu}}
</div>
<div id="main" class="col-md-9">
{{> yield region="detailrender"}}
</div>
</div>
</template>
router.js
.....
this.route('groupdetail', {
path: '/groupsmain/:_id',
layoutTemplate: 'layout',
yieldTemplates: {
'timeline': {to: 'detailrender'}
},
data: function() { return Groups.findOne(this.params._id);
}
});
this.route('groupdetailcalendar', {
path: '/groupsmain/:_id/calendar',
layoutTemplate: 'layout',
template: 'groupdetail',
yieldTemplates: {
'calendar': {to: 'detailrender'}
},
data: function() { return Groups.findOne(this.params._id);
.....
});

Meteor: nested templates and a pseudo switch conditional

I'm new with meteor and at the moment i'm testing out nested templates. More specific, i'm trying to get this pseudo switch working.
I have a PARENT template that gets data from a template.helper function where it gets the data for the {{#each}}.
This is the PARENT template
<template name="result">
{{#each Tresult}}
<div class="jow">
<h3>{{name}}</h3>
<p>{{type}}</p>
<div>{{> Tstatus}}</div>
</div>
{{/each}}
</template>
The PARENT also includes another template {{> Tstatus}}
This is the CHILD template
<template name="Tstatus">
{{#status_is "green"}}
{{> Tstatus_green}}
{{/status_is}}
{{#status_is "red"}}
{{> Tstatus__red}}
{{/status_is}}
{{#status_is "orange"}}
{{> Tstatus__orange}}
{{/status_is}}
</template>
<template name="Tstatus_green">
<span>green</span>
</template>
<template name="Tstatus_red">
<span>red</span>
</template>
<template name="Tstatus_orange">
<span>orange {{number}}</span>
</template>
This template can also include 3 other templates:
Tstatus_green
Tstatus_red
Tstatus_orange
But the problem is, how do i get this pseudo switch working. So i only need to include 1 of the 3 templates, based on it's status color.
And this is the helper function for the PARENT template
Template.result.helpers({
Tresult:function(){
return Ttable.find()
}
})
I would do something like this:
Template.Tstatus.helpers({
getStatusColor:function()
{
//"this" will be the current Ttable document
var color = getColorFunction(this)
return Template["Tstatus_"+color]
}
})
<template name="Tstatus">
{{#with getStatusColor}}
{{>.}}
{{/with}}
</template>

Rendering a template when value in Mongo equals certain value

So I want to render a template that will hold an image when the value of the score in my Players collection equals 500, it right now doesn't render at all even when a player score equals 500, do I need an if statement in my handlebars or something else?
Relevant code I made so far
client
foo.html
<body>
<div class="container">
{{> header}}
<div class="row-fluid">
<div class="span8">
{{> leaderboard}}
</div>
<div class="span4">
{{> champion}}
</div>
</div>
</div>
</body>
<template name="champion">
{{#each winners}}
{{> winner}}
{{/each}}
</template>
<template name="winner">
<img src="gold.jpg" alt="winner">
</template>
foo.js
Template.champion.winners = function () {
return Players.find({score: 500});
};
You marked the Template code as being on the server in your question, but the code with Template.winner.winners should be on the client, not the server. This is most likely the problem. Also, you have two templates named winner, although Meteor should throw an error on the command line if you have duplicate template names.
Finally, this isn't what you asked, but it may come handy for debugging too. You can detect whether the cursor is empty in your templates using Handlebars {{else}}:
{{#each winners}}
{{> winner}}
{{else}}
no winners!
{{/each}}

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