Firestore Data Model: Threaded Comments on Several Pages
2 min read
jdgamble555 on (last modified on )
Here is how I would model a comment thread if you have X amount of posts that might each have separate comment threads.
getComments
getComments(parentID: string, postID: string) {
return db.collection(`posts/${postID}/comments`)
.where('parent', '==', parentID)
.orderBy('createdAt', 'desc');
}posts/postID/comments
commentDoc - root
{
text: 'comment contents',
uid: 293slek2l2s,
parent: 'root',
createdAt: serverTimestamp()
}commentDoc - child
{
text: 'comment contents',
uid: 293slek2l2s,
parent: 'parentID',
createdAt: serverTimestamp()
}post component
<comment parent="root', post="54232k21">comment component
<div class="container tab">
<if comments=getComments(parent, post)>
<forEach comments as comment>
{{ comment.text }}
user: {{ comment.uid }}
<comment parent="comment.id", post="54232k21">
</comment>
<endIf>
</div>This HTML code is highly dependent on your framework, but I wanted to give a general idea of how I would model this.
Hopefully this works for you.
I will probably implement it in my Angular Project eventually.
J
firebase
cloud-firestore
data-modeling