Can I or is it safe to use these names?
<template name="a-b">
<template name="a.b">
<template name="a_b">
<template name="a/b">
<template name="a:b">
What special chars can be used in template name?
Related
I am using meteor 1.4 for building a real time task assignment app.
I am stuck at a point when i want to include a template passing in an argument the template helper of that template to run.
Now when i pass the argument, it is passed as a string and i want to call that template helper. But i cannot find any way in spacebars to call a template helper when i have the helper name available as a context variable of string type.
Please tell whether it is possible and if yes, then how ??
Thanks in advance
Edit 1 - For ex.
<template name="parent">
{{> children helperParameter="someHelper"}}
</template>
<template name="child">
{{> child2 value=helperParameter }}
</template>
<template name="innerchild">
{{value}}
</template>
So basically, I want to pass the value returned by someHelper to the template innerchild and i want to decide which helper (in this case someHelper) to run in child by passing the name of that helper to child template from parent template.
Now, i can not run that helper in child template where i have its name in parameter helperParameter as a string.
Try Template.dynamic.
<template name="layout">
{{> Template.dynamic template=template}}
<!-- This is equivalent to
{{> nameOfNeededTemplate}}
-->
</template>
Template.layout.helpers({
template: function() {
return 'nameOfNeededTemplate';
}
});
How can one make spacebars react when the set key does not exist in the template?
Example:
//JavaScript
Template.foo.helpers({
//"zaz" : "hello",
"bar" : 1
});
...
<!-- Template -->
<template name="foo">
{{bar}}
{{#ifExist zaz}}
{{zaz}}
{{else}}
"fill-me"
{{/ifExist}}
</template>
You can just check if your helper is defined by using a simple if statement followed by the helper or value you want to check:
<template name="foo">
{{bar}}
{{#if zaz}}
{{zaz}}
{{else}}
fill-me
{{/if}}
</template>
So I'm building my first app with meteor, and I feel like I'm repeating myself with my templates more than I should be.
I have multiple parent views, an example of which is the user contacts view, and the add group members view. (simplified examples below.)
<template name="GroupMembers">
{{#each contacts}}
{{> contact }}
{{/each}}
</template>
<template name="contacts">
{{#each contacts}}
{{> contact }}
{{/each}}
</template>
<template name="contact">
//... single contact template stuff
</template>
When the contact is displayed in the contacts list, I want to display a remove from contacts link in the single contact template, but in the group members list I'd like an 'add to group' link in its place. I know I could probably achieve this with either session variables or by invoking the iron-router controller obj, but I'd like to know if there is a simple way to do this in the template helper(s). Or put another way can these template partials become context aware?
Any help would be great.
Thanks.
I would solve it this way:
<template name="GroupMembers">
{{#each contacts}}
{{> contact groupMembers=true}}
{{/each}}
</template>
<template name="contacts">
{{#each contacts}}
{{> contact }}
{{/each}}
</template>
<template name="contact">
<p>
{{#if groupMembers}}
{{../name}}
<button>add to group</button>
{{else}}
{{name}}
<button>delete</button>
{{/if}}
</p>
</template>
Live demo: http://meteorpad.com/pad/LDTvHC787kJ6e9JQA/Leaderboard
Using data of the form:
users =
_id: 'foo'
books: [
{name: 'book1'}
{name: 'book2'}
]
<template name="user">
{{#each get_users}}
{{> shelf}}
{{/each}}
</template>
<template name="shelf">
{{#each books}}
{{> book}}
{{/each}}
</template>
<template name="book">
<div contenteditable="true" data-id="{{_id}}">{{name}}</div>
</template>
I want _id in the book template to refer to the _id of the user, but _id is not in scope inside the book template. I'd like to be able to do something like {{> book _id}}, but that doesn't work, I think because book can only have one argument, and that is each {name: 'book1'} doc.
Use a custom block helper. It would be nicer if Meteor allowed multiple arguments for custom block helpers (this is supported in Handlebars). Since it doesn't (see the the wiki), this is the best I came up with, passing a modified this to the subtemplate book.
<template name="shelf">
{{#my_iterator}}
{{> book}}
{{/each}}
</template>
Templates.shelf.my_iterator = (options) ->
html = "
for book in this.books
this.name = book.name
html += options.fn this
html
I have three simple Templates in Meteor, and a Collection on the server with any combination of their names. I want to be able to render these templates dynamically based on which of their names are in the Collection.
Currently I am trying to accomplish this by using the client to subscribe to the Collection, and access the names through a template function. Unfortunately, if I try to run ">" on the names, Meteor attempts to render the variable name instead of the Template pointed to by its value.
So instead of rendering the html in template1, template2, and template3, the output is merely their names on the page: "template1 template2 template3".
Here is the code I've been using, I hope there's a way to solve my issue without having to run Meteor.render manually.
Server js:
TemplatesToRender = new Meteor.Collection("templatesToRender");
TemplatesToRender.insert({templateName: "template3"});
TemplatesToRender.insert({templateName: "template2"});
Client html:
<body>
{{#each templatesToRender}}
{{> templateName}} // meteor trying to render a template
// called "templateName" instead of the
// variable inside templateName.
{{/each}}
</body>
<template name="template1">
<span>Template 1</span>
</template>
<template name="template2">
<span>Template 2</span>
</template>
<template name="template3">
<span>Template 3</span>
</template>
You can make a render helper:
Handlebars.registerHelper('render', function(name, options) {
if (Template[name])
return new Handlebars.SafeString(Template[name]());
});
And use it with
{{render templateName}}
You might want to try this
in your html
<body>
{{> templateToRender}}
</body>
<template name="templateToRender">
{{! use below to detect which template to render}}
{{#if templateName "template1"}}
{{> template1}}
{{/if}}
{{#if templateName "template2"}}
{{> template3}}
{{/if}}
{{#if templateName "template3"}}
{{> template3}}
{{/if}}
</template
<template name="template1">
<p>this is template1</p>
</template>
<template name="template2">
<p>this is template2</p>
</template>
<template name="template3">
<p>this is template3</p>
</template>
in your script
Template.templateToRender.templateName = (which) ->
# if user have a field like templateName you can do things like
tmplName = Meteor.user().templateName
# Session.equals will cause a template render if condition is true.
Session.equals which, tmplName
Meteor 1.0 just came out today, and I just want to update this for 2014 :)
https://docs.meteor.com/#/full/template_dynamic
{{> Template.dynamic template=template [data=data] }}
Sample Usage:
{{#each kitten}}
{{> Template.dynamic template=kitten_type data=this }}
{{/each}}