StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POPreventing unnecessary rendering in Meteor if a document referenced by two templates in Meteor is updated
primarykey
Id
15929507
data
AcceptedAnswerId
0
AnswerCount
1
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2013-04-10T15:01:24.070
FavoriteCount
0
LastActivityDate
2013-04-12T13:28:04.820
LastEditDate
2013-04-11T16:51:37.697
LastEditorUserId
2266659
OwnerUserId
2266659
ParentId
0
PostTypeId
1
Score
1
ViewCount
157
LastEditorDisplayName
text
Body
<p>I have a Meteor project where two different templates depend on data from the same document:</p> <pre><code>{ "title": "My Project", "data": "My project data" } </code></pre> <p>One template renders the "title", and another renders the "data".</p> <p>If a user changes the "data" field in the document, I do not want the template that uses the "title" field to re-render. I only want the template that uses "data" to re-render.</p> <p>For example, the title may be in a page header which does not need to be re-rendered if the project's data changes.</p> <p>How can this be achieved?</p> <p>My Meteor templates:</p> <pre><code><head> <title>experiment</title> </head> <body> {{>hello}} </body> <template name="hello"> <div> My projects. </div> {{#each projects}} <div> {{>projectTitle}} {{>projectData}} </div> {{/each}} </template> <template name="projectTitle"> <div> Project title: {{title}} </div> </template> <template name="projectData"> <div> Project data: {{data}} </div> </template> </code></pre> <p>My Meteor Javascript:</p> <pre><code>Experiments = new Meteor.Collection("experiments"); if (Meteor.isClient) { Template.hello.projects = function() { return Experiments.find(); } Template.projectTitle.title = function() { return Experiments.find().fetch()[0].title; } Template.projectData.data = function() { return Experiments.find().fetch()[0].data; } Template.projectTitle.rendered = function() { console.log('Rendered projectTitle'); } Template.projectData.rendered = function() { console.log('Rendered projectData'); } } </code></pre> <p>This code will currently output "Rendered projectTitle" and "Rendered projectData" whenever either of the fields in the Project document change, which shows that both templates are being re-rendered.</p> <p><strong>Edit</strong> I don't know if there is a 'correct' way to do this, but one could publish two subscriptions, which return separate parts of the document. This seems counter to the philosophy of Meteor, though.</p>
Tags
<meteor>
Title
Preventing unnecessary rendering in Meteor if a document referenced by two templates in Meteor is updated
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USuser2266659
UserOwnerUserId
1. USuser2266659
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
  singulars
  PostTypePostTypeId
  PTAnswer
VotesPostIdCreationDate
1. VO
  singulars
  PostPostId
  POPreventing unnecessary rendering in Meteor if a document referenced by two templates in Meteor is updated
  UserUserId
  This table or related slice is empty.
  VoteTypeVoteTypeId
  VTUpMod
CommentsPostId
1. This table or related slice is empty.

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.